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920-331 - Communication Server 1000 Rls. 5.0 Database Administrator - Dump Information

Vendor : Nortel
Exam Code : 920-331
Exam Name : Communication Server 1000 Rls. 5.0 Database Administrator
Questions and Answers : 55 Q & A
Updated On : November 15, 2018
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920-331 Communication Server 1000 Rls. 5.0 Database Administrator

Study Guide Prepared by Killexams.com Nortel Dumps Experts


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920-331 exam Dumps Source : Communication Server 1000 Rls. 5.0 Database Administrator

Test Code : 920-331
Test Name : Communication Server 1000 Rls. 5.0 Database Administrator
Vendor Name : Nortel
Q&A : 55 Real Questions

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Nortel Nortel Communication Server 1000

Nortel Builds on its Unified Communications imaginative and prescient, options Portfolio | killexams.com Real Questions and Pass4sure dumps

Nortel

NYSE : NTTSX : NT

Nortel

March 05, 2007 09:02 ET

CEO Mike Zafirovski Outlines Nortel UC imaginative and prescient at VoiceCon 2007

ORLANDO, FLORIDA--(CCNMatthews - March 5, 2007) - At VoiceCon Spring 2007 this week, Nortel(1) (TSX:NT)(NYSE:NT) is outlining its imaginative and prescient for unified communications (UC) and unveiling new solutions designed to give businesses with fundamental and respectable the way to carry voice, video and records over IP and allow superior unified communications.

Nortel President and CEO Mike Zafirovski should be a keynote speaker on Tuesday, and should discuss how unified communications options and converged applications are poised to radically change commercial enterprise communications.

"Unified communications fundamentally adjustments the manner businesses communicate, simplifying the deluge of communications with a single, seamless interface," observed Zafirovski. "Nortel and our partners are working to create a UC adventure that makes laborers more productive and responsive, with a wealthy communications journey in the workplace or on the go."

Nortel's unified communications imaginative and prescient focuses on offering options that align to the business environment the business uses today. These options enable users to event streamlined communications inside their company utility while leveraging their present IT investments - in reality UC your means.

As a part of its increasing unified communications portfolio, Nortel is introducing a couple of new options that carry a richer set of UC equipment while guaranteeing the resiliency of the communications network.

Nortel's cornerstone IP Telephony solution, the communication Server (CS) 1000 will convey new capabilities and enhancements to additional enhance this main VoIP platform. a brand new free up of CS one thousand will supply stronger reliability and redundancy, greater community and voice call protection and new E911 capabilities, all aimed toward guaranteeing companies can count on their community for vital communications needs. through deliberate interoperability with Microsoft workplace Communications Server 2007, this new unlock will bring unified communications capabilities as part of the resourceful Communications Alliance roadmap.

the brand new CS a thousand architecture will lengthen its support for open specifications, with help for an open operating device and beginning on business off-the-shelf (COTS) hardware from IBM and different suppliers, to enrich deployment flexibility and manageability of the network. giant simplification of the portfolio elements and pricing bundles will make it easier for partners and resellers to cite and promote. This new release is deliberate for availability in 2Q07.

additionally nowadays Nortel introduced the universal availability of a new unlock of the award-successful Multimedia communique Server (MCS) 5100. This new liberate improves productiveness by using offering clients with tight integration of telephony and multimedia purposes inside IBM Lotus Notes. It also facets a number of significant enhancements, including improved and simplified collaboration capabilities that permit a full range of voice, video, conferencing, e-mail, IM and presence capabilities at the click of a mouse, along with improved mobility capabilities that supply a wealthy communications event for cell employees. the brand new MCS 5100 release additionally introduces support for brand new SIP-primarily based IP telephones improving usability and suppleness and improves the universal security, reliability, manageability and scalability of the core platform, which now operates on IBM servers with a Linux operating device.

Nortel is also introducing Unified Messaging (UM) 2000, a function-prosperous, carrier-grade solution assisting as much as one million clients that allows voicemail, fax and electronic mail to be accessed collectively via commonplace e-mail applications and integrates with Microsoft's energetic listing®. UM 2000 is requirements-primarily based so that it could actually function in a multivendor voice community, and is centered to global firms as well as carriers that present their shoppers unified messaging options.

To assist companies deploy UC-optimized networks, Nortel is additionally unveiling converged statistics networking enhancements to its North American advertising and marketing campaigns, which build on the a hit IPT 1-2-3 crusade launched final 12 months. These campaign enhancements encompass associate tools, focused demand era activities, pre-engineered data programs, and non-compulsory services that make it simpler and greater economical for licensed channel partners to set up a LAN that supports valued clientele' VoIP and UC wants.

These information programs and services will also be quoted beginning in April 2007 and include alternatives to permit the total deployment of vigour over Ethernet, VoIP-Optimized cozy Routing for WAN entry, and WLAN for mobility and optional upkeep, installing and technical guide features. Nortel's North American crusade additionally comprises advertising and incentive classes accessible today through licensed Nortel channel partners for agencies who are customizing their network for unified communications.

About Nortel

Nortel is a recognized chief in offering communications capabilities that make the promise of company Made fundamental a reality for our clients. Our next-era technologies, for each provider issuer and enterprise networks, assist multimedia and business-vital functions. Nortel's applied sciences are designed to support get rid of modern boundaries to effectivity, velocity and efficiency via simplifying networks and connecting people to the tips they need, when they want it. Nortel does enterprise in more than a hundred and fifty countries around the globe. For extra suggestions, seek advice from Nortel on the net at www.nortel.com. For the newest Nortel information, seek advice from www.nortel.com/news.

certain statements during this press free up may also contain phrases akin to "may", "expects", "may additionally", "anticipates", "believes", "intends", "estimates", "goals", "envisions", "seeks" and different an identical language and are considered ahead-searching statements or suggestions below applicable securities law. These statements are in accordance with Nortel's existing expectations, estimates, forecasts and projections concerning the working atmosphere, economies and markets in which Nortel operates. These statements are field to essential assumptions, dangers and uncertainties, which can be complicated to predict and the genuine influence may well be materially distinctive. further, genuine outcomes or events might differ materially from these reflected in forward-searching statements on account of the following(i) dangers and uncertainties regarding Nortel's restatements and linked concerns including: Nortel's most contemporary restatement and two previous restatements of its economic statements and linked routine; the poor affect on Nortel and NNL of their most contemporary restatement and lengthen in filing their fiscal statements and linked periodic studies; criminal judgments, fines, penalties or settlements, or any massive regulatory fines or other penalties or sanctions, regarding the ongoing regulatory and crook investigations of Nortel within the U.S. and Canada; any big pending civil litigation actions not encompassed by means of Nortel's proposed category motion contract; any large cash charge and/or gigantic dilution of Nortel's existing equity positions because of the approval of its proposed type motion contract; any unsuccessful remediation of Nortel's cloth weaknesses in inside handle over monetary reporting leading to an lack of ability to file Nortel's consequences of operations and economic situation precisely and in a well timed manner; the time required to enforce Nortel's remedial measures; Nortel's lack of ability to entry, in its existing form, its shelf registration filed with the U.S. Securities and change commission (SEC), and Nortel's below funding grade credit standing and any further adversarial impact on its credit rating due to Nortel's restatements of its fiscal statements; any opposed have an effect on on Nortel's business and market fee of its publicly traded securities arising from continuing negative publicity related to Nortel's restatements; Nortel's advantage inability to attract or preserve the personnel vital to achieve its enterprise goals; any breach by using Nortel of the endured checklist necessities of the NYSE or TSX causing the NYSE and/or the TSX to commence suspension or delisting techniques;(ii) risks and uncertainties concerning Nortel's company together with: each year and quarterly fluctuations of Nortel's operating effects; reduced demand and pricing pressures for its items because of global economic conditions, huge competition, aggressive pricing observe, cautious capital spending by means of clients, extended industry consolidation, hastily changing technologies, evolving trade specifications, frequent new product introductions and brief product existence cycles, and other traits and industry characteristics affecting the telecommunications industry; the sufficiency of recently introduced restructuring actions, including the capabilities for larger specific expenses to be incurred in connection with these restructuring actions compared to the estimated prices of such moves and the capability to obtain the targeted cost reductions and rate reductions of Nortel's unfunded pension liability deficit; any cloth and hostile influences on Nortel's performance if its expectations involving market demand for selected items prove to be incorrect or because of certain boundaries in its efforts to extend internationally; any discount in Nortel's operating consequences and any related volatility out there fee of its publicly traded securities arising from any decline in its gross margin, or fluctuations in international currency change prices; any bad traits linked to Nortel's give contract and contract manufacturing agreements together with as a result of using a sole corporation for key optical networking options accessories, and any defects or blunders in Nortel's present or planned products; any bad influence to Nortel of its failure to obtain its company transformation purpose; extra valuation allowances for all or a portion of its deferred tax assets; Nortel's failure to give protection to its intellectual property rights, or any adversarial judgments or settlements coming up out of disputes involving highbrow property; adjustments in regulation of the information superhighway and/or different facets of the trade; Nortel's failure to effectively function or combine its strategic acquisitions, or failure to consummate or succeed with its strategic alliances; any bad impact of Nortel's failure to adapt effectively its monetary and managerial control and reporting methods and methods, control and develop its business, or create a pretty good chance management approach; and(iii) hazards and uncertainties relating to Nortel's liquidity, financing preparations and capital including: the affect of Nortel's most recent restatement and two old restatements of its economic statements; any inability of Nortel to control cash circulate fluctuations to fund working capital requirements or obtain its company targets in a well timed manner or gain extra sources of funding; high tiers of debt, limitations on Nortel capitalizing on business opportunities on account of assist facility covenants, or on acquiring further secured debt pursuant to the provisions of indentures governing definite of Nortel's public debt issues and the provisions of its aid facility; any raise of limited money necessities for Nortel whether it is unable to comfortable choice help for duties bobbing up from definite commonplace direction company activities, or any lack of ability of Nortel's subsidiaries to supply it with ample funding; any terrible impact to Nortel of the deserve to make higher described benefit plans contributions sooner or later or exposure to client credit hazards or lack of ability of shoppers to meet fee duties under customer financing arrangements; any terrible impact on Nortel's means to make future acquisitions, lift capital, problem debt and maintain employees bobbing up from stock rate volatility and additional declines out there cost of Nortel's publicly traded securities, or the percentage consolidation leading to a reduce total market capitalization or adverse impact on the liquidity of Nortel's usual shares. For additional information with appreciate to definite of these and other elements, see Nortel's Annual record on Form10-okay/A, Quarterly stories on kind 10-Q and different securities filings with the SEC. unless in any other case required by applicable securities legal guidelines, Nortel disclaims any intention or responsibility to replace or revise any forward-looking statements, whether because of new information, future movements or in any other case.

(1)Nortel, the Nortel emblem and the Globemark are emblems of Nortel Networks.


Microsoft and Nortel latest Alliance Roadmap | killexams.com Real Questions and Pass4sure dumps

information

Microsoft and Nortel present Alliance Roadmap Six months after asserting a telecommunications alliance, Microsoft and Nortel this week introduced some early effects of their efforts and outlined a roadmap for future projects.

both companies first announced their collaboration closing summer.

The road map comprises three new joint options “to dramatically increase business communications through breaking down the obstacles between voice, electronic mail, immediate messaging, multimedia conferencing and other types of verbal exchange,” in keeping with a press release by means of both firms.

also protected within the announcement are eleven new implementation functions from Nortel and the outlet of more than 20 joint demonstration centers the place valued clientele can event the expertise, the remark continued.

furthermore, the two groups observed they have signed agreements with dozens of consumers, and have developed a “pipeline of tons of of possibilities who wish to know the merits of unified communications.”

From Microsoft's viewpoint, it's all a part of the business's long-term play to merge every kind of communications and messaging right into a single framework. A year in the past, the business introduced that it became merging its exchange Server neighborhood with its true-Time Collaboration (RTC) group, and that it had begun to think of both applied sciences comprising a "platform."

the brand new group turned into named the Unified Communications neighborhood (UCG) and resides in Microsoft's enterprise Division. The thought for the brand new neighborhood emanated from a imaginative and prescient of adding continuity to a myriad of communications devices, technologies and modes -- from email and rapid messaging to Voice over web Protocol (VoIP), audio/video and net conferencing -- in a unified manner.

The three new joint solutions announced through the alliance this week are named Unified Communications built-in branch, Unified Messaging, and Conferencing.

When it is attainable within the fourth quarter, UC integrated department will include Nortel and Microsoft know-how on a single piece of hardware that provides VoIP and unified communications in far off places of work.

Coming a little bit prior in the 2nd quarter, Unified Messaging will goal to simplify client deployments, native session initiation protocol (SIP) interoperability between the Nortel verbal exchange Server one thousand and Microsoft exchange Server 2007. The answer contains Nortel professional features for design, deployment and guide.

additionally coming within the fourth quarter, Conferencing will lengthen Nortel Multimedia Conferencing to Microsoft office Communicator 2007. It aims to give a single customer journey consistent across purposes similar to voice, rapid messaging, presence, and audio- and videoconferencing.

This yr, the agencies also plan to prolong their present unified communications answer — a unified computing device and tender mobilephone for VoIP, electronic mail, fast messaging and presence — to the Nortel verbal exchange Server 2100, a service-grade commercial enterprise telephony product assisting as much as 200,000 users on a single equipment, according to business statements.

As for the road map, both companies have equipped greater than 20 joint demonstration centers in North the usa, Europe and Asia, with greater than one hundred additional facilities scheduled to open by midyear.

Nortel has additionally added eleven core integration services to support purchasers construct, installation and aid joint unified communications solutions, including end-to-end challenge administration. Nortel claims it has already trained more than 2,200 VoIP specialists to convey these capabilities and should add extra as deployment ramps up.

concerning the creator

Stuart J. Johnston has lined technology, primarily Microsoft, when you consider that February 1988 for InfoWorld, Computerworld, tips Week, and laptop World, as well as for enterprise Developer, XML & web services, and .internet magazines.


Nortel and Microsoft CEOs outline Transformation of enterprise Communications | killexams.com Real Questions and Pass4sure dumps

big apple — Jan. 17, 2007 — nowadays, Microsoft Corp. CEO Steve Ballmer and Nortel* CEO and President Mike Zafirovski announced a joint street map to deliver their shared imaginative and prescient for unified communications. The road map is the effect of an alliance between Microsoft and Nortel announced in July 2006, and comprises three new joint solutions to dramatically improve enterprise communications by way of breaking down the barriers between voice, email, rapid messaging, multimedia conferencing and different kinds of communication.

talking at an adventure at Studio 8H in Rockefeller middle to greater than one hundred valued clientele together with newshounds and analysts, Ballmer and Zafirovski outlined how groups can improve employee productivity and effectiveness and cut back the fees and complexity of communications. They additionally announced 11 new implementation functions from Nortel and the outlet of more than 20 joint demonstration facilities the place consumers can event the technology firsthand.

in exactly six months on account that the alliance become shaped, the two corporations have signed agreements with dozens of valued clientele, and have developed a pipeline of hundreds of possibilities who are looking to recognise the merits of unified communications.

“we are executing forcefully on the imaginative and prescient of this alliance and have made large progress,” Zafirovski stated. “We completed the planning degrees and are now providing unified communications options to businesses worldwide. Our goal is to close the gap between the instruments we use to communicate and the company functions we use to run our groups, giving employees the vigour to make use of tips more straight away and effectively.”

“The ordinary employee receives more than 50 messages each day1 on as much as seven diverse contraptions or functions,” Ballmer introduced. “utility can and will support tackle the ongoing problem of managing communications and this problem is the riding thought in the back of our alliance with Nortel. together, we are able to evolve VoIP and unified communications to integrate all the approaches we contact each other in an easy ambiance, the usage of a single identification across telephones, PCs and other devices.”

New options to enrich Communications and Collaboration

Microsoft and Nortel fashioned the inventive Communications Alliance to help businesses seriously change business communications with the aid of rushing up the transition to voice over information superhighway protocol (VOIP) and unified communications. supplying on the vision they outlined in July, Microsoft and Nortel nowadays brought three new solutions:

  • UC built-in department. This new product from the alliance will contain Nortel and Microsoft® technology on a single piece of hardware that grants not pricey, notable and straightforward-to-install VoIP and unified communications in faraway offices. The UC integrated department is deliberate to be obtainable within the fourth quarter of 2007.

  • Unified Messaging. To simplify consumer deployments, native session initiation protocol (SIP) interoperability between the Nortel verbal exchange Server one thousand and Microsoft change Server 2007 Unified Messaging is planned to be purchasable in the 2nd quarter of 2007. The solution includes Nortel skilled features for design, deployment and assist.

  • Conferencing. This new solution will lengthen the prosperous function set of Nortel Multimedia Conferencing to Microsoft office Communicator 2007, supplying a single, universal customer adventure consistent throughout applications similar to voice, quick messaging, presence, and audio- and videoconferencing. The on-premise solution is planned to be accessible within the fourth quarter of 2007.

  • In 2007, the organizations additionally plan to lengthen their latest unified communications answer — a unified computing device and gentle mobile for VoIP, e mail, instant messaging and presence — to the Nortel conversation Server 2100, a carrier-grade business telephony product aiding up to 200,000 clients on a single equipment.

    furthermore, Nortel and Microsoft introduced a highway map for 2008 and past for relocating business communications onto a utility platform designed to force an improved-nice person journey and reduce total charge of ownership. The street map outlines a few key applications and know-how trends together with a unified communications contact center, Nortel characteristic server, accelerated hosted UC solutions, mobility and customer options, and application-conscious networking enhancements.

    “ingenious communications and collaboration applied sciences are critical to entirely enabling Royal Dutch Shell’s world work force, and key to working at desirable quartile in our industry. We accept as true with in and help the imaginative and prescient Nortel and Microsoft have outlined,” said Johan Krebbers, neighborhood IT architect at Royal Dutch Shell, who joined Ballmer and Zafirovski onstage for these days’s adventure. “Over the next a couple of years, we plan emigrate our network to a application-primarily based communications device developed on applied sciences represented by means of the Nortel and Microsoft alliance.”

    Experiencing VoIP and Unified Communications solutions

    The businesses introduced that they have got outfitted more than 20 joint demonstration facilities in North the us, Europe and Asia, with greater than a hundred extra centers scheduled to open by midyear.

    In a linked announcement, Nortel added eleven core integration functions to assist valued clientele construct, set up and help joint unified communications solutions, including end-to-end undertaking administration. Nortel already has more than 2,200 VoIP experts to bring these capabilities and should add more as deployment ramps up. This community is supported with the aid of the 10,000-amazing Nortel world services team and a huge ecosystem of capabilities partners.

    About Nortel

    Nortel is a diagnosed chief in offering communications capabilities that boost the human adventure, ignite and vigor global commerce, and comfy and protect the area’s most important suggestions. Our subsequent-era applied sciences, for each provider providers and agencies, span access and core networks, help multimedia and company-essential functions, and assist eliminate nowadays’s limitations to efficiency, pace and performance through simplifying networks and connecting individuals with advice. Nortel does business in additional than a hundred and fifty nations.

    About Microsoft

    headquartered in 1975, Microsoft (Nasdaq “MSFT”) is the worldwide chief in software, capabilities and solutions that assist individuals and organizations realize their full expertise.

    note to editors: in case you have an interest in viewing more information on Microsoft, please talk over with the Microsoft net page at http://www.microsoft.com/presspass on Microsoft’s corporate tips pages. internet hyperlinks, cell numbers and titles were correct at time of publication, however may additionally due to the fact have modified. For further information, journalists and analysts may additionally contact Microsoft’s rapid Response crew or other appropriate contacts listed at http://www.microsoft.com/presspass/contactpr.mspx .

    creative Communications Alliance consumer help

    BT

    BT international functions is the division of BT neighborhood that provides networked IT services international that allow multinational, multisite agencies to thrive and grow in the digital networked economic system

    “The Nortel and Microsoft alliance has the knowledge to accelerate and simplify the consciousness of unified communications for a significant part of our consumer base. BT leads via instance, and we are already the usage of alternate Server 2007 Unified Messaging with our Nortel telephony gadget. From this experience and from our place as a leading company of networked IT capabilities, we consider that the native, necessities-primarily based SIP interoperability that Microsoft and Nortel introduced today should simplify deployments and reduce complete charge of possession.”

  • Tom Craig President, IP Networking BT world features

  • CLSA

    With operations in 11 international locations within the Asia-Pacific area and the economic facilities of manhattan and London, CLSA is likely one of the main financial powerhouses global. Hong Kong-based mostly CLSA is an award-profitable enterprise that offers features in brokerage, funding banking and private fairness.

    “We needed to connect our regional offices and headquarters, with more than 1,000 personnel, with a system that superior our capability to execute trades and provide reporting facts. The ingenious Communications Alliance is offering a unified communications equipment that brings the power of Nortel’s IP telephony in conjunction with the collaboration of Microsoft workplace are living Communications Server to supply a solution advanced to the rest in the marketplace. it will enable us to satisfy the wants of our valued clientele, meet our regulatory requirements throughout many international locations and simplify communications for our personnel. because the imaginitive Communications Alliance makes it possible for us to leverage our present infrastructure, it's the most most economical answer attainable.”

  • T. Rajah Chief tips Officer CLSA

  • Fred Weber Inc.

    Fred Weber Inc. is the St. Louis enviornment’s chief in heavy and highway construction. based mostly in Maryland Heights, Mo., this $300 million-a-year, employee-owned company makes a speciality of full-carrier concrete and asphalt paving initiatives and is the region’s biggest substances agency. The company’s work philosophies these days are the identical as those of founder Fred Weber 78 years in the past. of those, “The need to continuously think and alter enterprise practices to more desirable serve purchasers” led Fred Weber Inc. to leverage the Nortel and Microsoft relationship.

    “At Fred Weber, our wants are diverse than different groups. Our enterprise exists past four partitions and a normal office complex. This creates a essential need for advantageous and authentic built-in communications. Orchestrating 1,200 personnel across our 25 development and materials areas in addition to our various subsidiary corporations can be a logistical nightmare. The ingenious Communications Alliance solution supplied with the aid of Nortel and Microsoft helps remedy this difficulty, and makes it possible for us to spend extra time with our consumers and respond in precise time to their wants.”

  • Phillip Hagemann Chief tips Officer Fred Weber Inc.

  • international SOS

    foreign SOS is the world’s main company of medical suggestions, foreign healthcare and safety features. With operations in sixty five international locations and a 4,500-powerful work force, foreign SOS helps corporations and businesses manage the health and safety dangers their tourists, expatriates and international work drive face.

    “providing super features to our consumers globally requires positive verbal exchange internally and externally. enticing Nortel and Microsoft’s resourceful Communications Alliance relationship offers us the possibility to implement a blended expertise solution that permits us to raise our core business of offering healthcare and safety functions worldwide.”

  • Todd Schofield Chief know-how Officer overseas SOS

  • Thomas school

    Thomas faculty, a personal faculty in Waterville, Maine, is committed to career practicing with a practice of teaching students in enterprise, technology and education. With greater than 950 undergraduate and graduate college students, and a college of 66, Thomas is adopting slicing-side Microsoft and Nortel counsel expertise below the aegis of the creative Communications Alliance.

    “while we're a small faculty, we've the purpose of implementing unified communications capabilities to serve our college students and college on par with universities which have higher enrollments and bigger budgets. we've used the Nortel telephony infrastructure for two many years and are actually the usage of Microsoft office are living Communications Server, so the creative Communications Alliance unified communications suite is a herbal extension. The plan is to set up the resourceful Communications Alliance solution to integrate communications, increase online coursework, and provide a customized, campuswide fast messaging capacity and a collaborative electronic blackboard skill. The web effect is that we are a 113-year-old institution it really is getting ready our students for achievement of their personal and professional lives, and for management and repair in their communities.”

  • Chris Rhoda vice chairman of advice amenitiesThomas faculty

  • linked Posts Redline Communications and Microsoft announce partnership to decrease the can charge of television White house solutionsMicrosoft build highlights new probability for developers, at the area and in the cloud Microsoft Dynamics 365 and Adobe adventure Cloud chosen by using 24 Hour health to seriously change client engagement Microsoft launches Azure location based services for geospatial needs throughout industries Microsoft and SAP be a part of forces to provide clients a depended on direction to digital transformation in the cloud

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  • Nortel CEO and President Mike Zafirovski (left) and Microsoft CEO Steve Ballmer (right) discussing the corporations’ shared imaginative and prescient for unified communications. long island, big apple. Jan. 17, 2007


    920-331 Communication Server 1000 Rls. 5.0 Database Administrator

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    Communication Server 1000 Rls. 5.0 Database Administrator

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    Innovation: EGNOS in Northeastern Europe | killexams.com real questions and Pass4sure dumps

    We examine the performance of EGNOS in Finland, which lies near the northeast periphery of the coverage area, and how this performance can be improved now and in the future.

    By Mohammad Zahidul H. Bhuiyan, Heidi Kuusniemi, Auryn Soderini, Salomon Honkala and Simo Marila

    INNOVATION INSIGHTS with Richard Langley

    “[O]NE ORBIT, WITH A RADIUS OF 42,000 KM, has a period of exactly 24 hours. A body in such an orbit, if its plane coincided with that of the earth’s equator, would revolve with the earth and would thus be stationary above the same spot on the planet. … [A] transmission received from any point on the hemisphere could be broadcast to the whole of the visible face of the globe, and thus the requirements of all possible services would be met.” So wrote writer and futurist Arthur C. Clarke in his October 1945 Wireless World article “Extra-terrestrial Relays: Can Rocket Stations Give World-wide Radio Coverage?,” envisaging the geostationary orbit (GEO) communication satellite.

    The first GEO satellite was Syncom III, orbited by the United States in August 1964. Since then, more than 1,000 satellites have been launched into what is known as the Clarke Belt and around 450 are presently active. Most of them are used for civil or military communication. Some are used for direct-to-user TV and radio. Some are used for weather monitoring and other kinds of surveillance. And some are used for augmenting GPS.

    While GPS is a remarkable positioning system, its real-time accuracy using L1-frequency pseudorange measurements and its instantaneous integrity are not sufficient for some applications such as aircraft navigation. That is why the U.S. Federal Aviation Administration developed the Wide Area Augmentation System (WAAS), the first satellite-based augmentation system (SBAS). WAAS provides differential correction data and integrity information to GPS users in real time throughout most of North America using a “bent pipe” from a ground station through the GEO satellite to a user’s equipment. It uses a state-space-domain correction approach, which provides corrections for the satellite orbit and clock data transmitted by GPS satellites along with ionospheric propagation delays, all computed from measurements collected by a continent-wide tracking network.

    The WAAS concept has been duplicated for other regions. Three other SBASs are in full operation: the European Geostationary Navigation Overlay Service (EGNOS), Japan’s Multifunctional Transport Satellite Satellite-based Augmentation System, and India’s GPS-aided GEO Augmented Navigation System. Russia’s System for Differential Correction and Monitoring is currently in development.

    One hitch with GEO satellites whatever their function is their inability to service high latitudes well. At a latitude of 65°, a GEO satellite has an elevation angle of only around 17° at most and at 75°, it’s about 6° or less. Even if a GEO satellite is above the local horizon, communication might be difficult due to the longer signal path length between the satellite and the user.

    And so it is with GEO satellites used for SBAS at high latitudes. And there is an additional problem that even if the signals from an SBAS satellite can be received, corrections for some GPS satellites will not be received if they are outside the coverage area of the SBAS tracking network. In this month’s column, we examine the performance of EGNOS in Finland, which lies near the northeast periphery of the EGNOS coverage area, and how this performance can be improved now and in the future.

    FIGURE 1. Finnish national GNSS network, FinnRef. The three stations highlighted in red had the worst positioning accuracy in our analyses.

    The European Geostationary Navigation Overlay Service (EGNOS) is the first European-operated satellite navigation system and is a precursor to Galileo, Europe’s independent global navigation satellite system (GNSS), now being deployed. EGNOS, as a satellite-based augmentation system (SBAS) similar to the U.S. Wide Area Augmentation System (WAAS), was developed with the vision to improve the performance of GNSSs, such as GPS and Galileo. At the moment, EGNOS only augments GPS, making it suitable for safety-critical applications such as flying aircraft or navigating ships through narrow channels.

    Additionally, EGNOS also supports new applications in many different sectors, such as agriculture (for high-precision spraying of fertilizers), transport (enabling automatic road-tolling or pay-per-use insurance schemes) or even precise personal navigation services for general and specific use.

    At present, there are two operational geostationary Earth orbiting (GEO) satellites and until March 2017, these satellites had pseudorandom noise code (PRN) numbers 120 and 136 that simultaneously broadcast EGNOS correction messages to European GPS users. The PRN satellites 120 and 136 are located at 15.5°W and 5.0°E. (Since March, PRN 123 has replaced PRN 136 as one of the operational EGNOS satellites.) The use of EGNOS in the northern Europe is much more challenging than elsewhere in Europe due to the relatively low-elevation angle of some EGNOS satellites as seen from there of about 14° or less.

    To improve our understanding of the true performance of EGNOS in Finnish territory, we recently carried out a project entitled “Finland’s EGNOS Monitoring and Performance Evaluation (FEGNOS).” At the northeastern edge of the EGNOS coverage area, the availability of the EGNOS geostationary satellites is compromised due to their low-elevation angles. The Finnish Geospatial Research Institute (FGI) at the National Land Survey of Finland (NLS) maintains a network of 20 permanent GNSS reference stations (FinnRef) all over Finland. The core objective of the FEGNOS project is to evaluate the performance of EGNOS at all of those reference stations to determine if the EGNOS system performance reaches its target in Finland.

    Building on our initial research, in this article we report on the analysis of EGNOS performance at all 20 FinnRef stations for a year-long time-frame from November 2015 until October 2016. As it is of importance to compare the performance of EGNOS in a geographic region where EGNOS satellite visibility can be poor due to low-elevation angle, we assessed the performance of EGNOS by comparing the receivers’ own decoded SBAS messages against the SBAS messages provided by the EGNOS Data Access Service (EDAS). The daily EDAS SBAS messages can be freely downloaded from the EDAS server with prior authentication from EDAS. The performance analysis has been carried out for the following three cases:

  • Applying EGNOS corrections obtained from the EDAS server
  • Applying EGNOS corrections obtained from the receiver-decoded (Rx-decoded) EGNOS messages
  • GPS stand-alone solution without any EGNOS corrections.
  • We carried out the data analysis using the EGNOS analyzing tool called PEGASUS (which originally stood for Prototype EGNOS Analysis Using SAPPHIRE, where SAPPHIRE stands for Satellite and Aircraft Database Programme for System Integrity Research) from Eurocontrol. The results show that the Rx-decoded EGNOS performance is not as good as the performance obtained from the EDAS-offered message corrections. The ongoing experience and knowledge learned from the project has helped to identify weaknesses of the EGNOS system at high northern latitudes.

    FINNISH NATIONAL GNSS NETWORK, FINNREF

    The Finnish National GNSS network, FinnRef, was established on the initiative of the Nordic Geodetic Commission and the director generals of the Nordic Mapping Authorities in the 1990s. FinnRef is part of the Nordic GNSS network, and some stations of the FinnRef network also contribute to the global International GNSS Service (IGS) network and to the European Permanent Network (EPN). The primary function of FinnRef is to offer geodetic-grade GNSS measurements, which have been continuously used for forming and maintaining the national coordinate system (EUREF-FIN). In addition, the FinnRef network is used for many GNSS-related research activities. For example, it is now possible to analyze the positioning performance of different augmentation services via the FinnRef network. Currently, FinnRef also offers an open positioning service based on the differential GNSS (DGNSS) corrections for GPS and GLONASS.

    The FinnRef network was renewed during the 2012–2013 timeframe. The renewed FinnRef network now consists of 20 GNSS reference stations, as shown in FIGURE 1. The raw GNSS data from all 20 reference stations is used in the FEGNOS project for EGNOS performance monitoring and analysis.

    DATA COLLECTION

    EGNOS signal monitoring at all FinnRef stations was carried out for one year from Nov. 4, 2015, until Oct. 31, 2016. There are in total about 360 days of data from the 20 stations out of a possible 366 days (2016 was a leap year). The day-of-year (DOY) information for the collected data set is detailed in TABLE 1. No data was available during DOY 233 and 234 of 2016 due to a technical fault at the FinnRef stations. There are 57 days of data from the year 2015 and 303 days of data from 2016.

    Table 1. DOY information for the year-long data set.

    Each FinnRef station is equipped with a dual-frequency geodetic-grade receiver. Each receiver generates 1-hour binary proprietary data files with a 1-Hz data rate. Data is pushed to the network server and saved at the conclusion of each hour. This means that there are in total 24 data sets for each single day for one single station. All the stations’ binary data files are then organized under one directory, which is named after DOY for that particular year. The FEGNOS data Collection Tool (FEGCoT) was developed in Matlab to collect data every day automatically from all 20 FinnRef stations.

    These three steps are followed for automatic data collection:

  • Collect: 1-Hz hourly data is collected from the FinnRef server, and then saved to the local hard disk for further processing.
  • Convert: The saved raw binary-formatted hourly data files from the receivers are converted to RINEX observation, navigation and SBAS data files via the receiver manufacturer’s converter.
  • Combine: In this step, all 24 one-hour data sets from each station are combined into one single 24-hour data set for every RINEX file type (that is, observation, navigation and SBAS files).
  • The combined 24-hour RINEX data file for each station is then processed using the PEGASUS software. The key configuration parameters used in the data analysis are listed in TABLE 2. (Note that airborne accuracy designator refers to specifications in the WAAS Minimum Operational Performance Standards,  MOPS.)

    TABLE 2. PEGASUS configuration parameters.

    Two PEGASUS modules are used for data analysis:

  • Convertor module: The Convertor module translates the RINEX observation, navigation and SBAS data into a generic format, which can then be used by the GNSS_Solution module for detailed analysis. Convertor can also use input from different GNSS/SBAS receivers and then transform the recorded binary data into readable ASCII data.
  • GNSS_Solution module: The GNSS_Solution module is used to compute a position solution in conformance with the MOPS for GNSS receivers used in avionics (GPS, SBAS or ground-based augmentation systems). In other words, the GNSS_Solution module can be considered as a post-processing MOPS-compliant GNSS receiver. It interfaces with other PEGASUS components, notably the Convertor module.
  • The elevation cut-off angle and the minimum accepted signal-to-noise ratio are kept low so as to have more satellites available for user-position computation. (The European Global Navigation Satellite Systems Agency (GSA) advises that range measurements from EGNOS satellites not be used for position computation.)

    A Matlab-script was written to download EDAS-provided daily SBAS messages automatically from the EDAS server. All the PEGASUS-related processing was also executed by a Matlab-based script.

    ANALYSIS OF RESULTS

    We analyzed the EGNOS/GPS performance for the above-mentioned cases with the collected year-long data set from the 20 FinnRef stations. The operational time or uptime of each FinnRef station was monitored throughout the FinnRef network nodes on a daily basis. The average uptime of each station for the one-year data set is shown in FIGURE 2. The “b” in station names indicates one of the two data streams available from each station. The figure shows that most of the stations were up for more than 98% of the time, while only few have uptimes close to 95%.

    FIGURE 2. Station uptime for all FinnRef stations for the year-long data set.

    According to EGNOS Open Service (OS) horizontal and vertical accuracy requirements, the 95% Horizontal Navigation System Error (HNSE) should be less than 3 meters, and the 95% Vertical Navigation System Error (VNSE) should be less than 4 meters in the EGNOS service provision area. The horizontal and vertical position errors at a defined time epoch are computed as the difference between the estimated navigation position and the actual position in horizontal and vertical planes, respectively. The HNSE (95%) and VNSE (95%) were computed for all FinnRef stations with the year-long data set.

    The yearly EGNOS performance in terms of HNSE (95%) and VNSE (95%) are shown in FIGURES 3 and 4, respectively. It can be observed that GPS+EGNOS offers significant accuracy improvement compared to GPS stand-alone solutions for all of the stations. Vertical accuracy improvement for EGNOS is greater than the horizontal improvement, mostly due to the better mitigation of ionospheric error compared to stand-alone GPS. We also observed that the Rx-decoded EGNOS performance is not as good as the performance when corrections are obtained from the EDAS server. This might be due to the poor visibility of the EGNOS satellites at northeastern latitudes, which resulted in data aging or partial data loss of EGNOS messages.

    FIGURE 3. HNSE (95%) for all FinnRef stations.

    FIGURE 4. VNSE (95%) for all FinnRef stations.

    In FIGURES 5 and 6, the daily EGNOS performance in terms of VNSE (95%) are shown for the two cases: 1) applying EGNOS corrections from EDAS-provided EGNOS messages, and 2) applying EGNOS corrections from Rx-decoded EGNOS messages, respectively.

    FIGURE 5. VNSE (95%) performance over time with GPS+EGNOS (EDAS) corrections.

    FIGURE 6. VNSE (95%) performance over time with GPS+EGNOS (Rx-decoded) corrections.

    For a better understanding, the percentage of EGNOS OS requirement failure when analyzed on a daily basis with EDAS offered corrections is presented in FIGURE 7.

    FIGURE 7. Percent of EGNOS OS requirement failure with EDAS-provided EGNOS correction messages.

    The percentage of EGNOS OS requirement failure was computed from the number of days where the HNSE (95%) ≥3 meters in the case of horizontal navigation solution error and VNSE (95%) ≥ 4 meters in the case of vertical navigation solution error. As observed from Figures 5 and 7, the EDAS offered EGNOS corrections fail to meet the OS requirement only in a few instances. Similarly, the percentage of EGNOS OS requirement failure when analyzed on a daily basis with Rx-decoded corrections is presented in FIGURE 8. It can be easily seen from Figures 6 and 8 that the Rx-decoded EGNOS performance fails to meet the OS requirement in many instances. However, the daily fluctuations are averaged out when the year-long data is taken into account, providing satisfactory performance on the whole.

    FIGURE 8. Percent of EGNOS OS requirement failure with Rx-Decoded EGNOS correction messages.

    The yearly EGNOS performance in terms of VNSE (99%) is shown in FIGURE 9.

    FIGURE 9. Sorted VNSE (99%) performance with GPS+EGNOS (EDAS) corrections for all FinnRef stations.

    The three stations with the worst accuracy are highlighted in red in Figure 1. These stations are located on the northeastern border of the EGNOS coverage area. The EGNOS User Differential Range Error Indicator (UDREI) figure for three stations (FINb, VIRb, and SAVb) is shown in FIGURE 10(a), 10(b) and 10(c), respectively.

    FIGURE 10. EGNOS UDREI as seen at (a) FINb, (b) VIRb and (c) SAVb.

    The stations were chosen so that they represent a wide geographical spread over Finland. According to Figure 10, the satellite UDREI values are in the range of 14 and 15 (marked as blue) at the northeastern edge of the sky plot. A UDREI of 14 indicates “not monitored” and 15 indicates “do not use” for a particular satellite. Even though the satellites had a moderate elevation angle with respect to the user, the EGNOS system was unable to offer corrections to those satellites in the northeastern sky. Relatively lower availability of GPS satellites coupled with the lower number of EGNOS Ranging and Integrity Monitoring Stations (RIMS) at northeastern latitudes contributed to the poorer than expected positioning performance in the northeastern coverage area of EGNOS.

    CONCLUSIONS

    In this article, we presented a summary of an analysis of EGNOS in Finland for a year-long period, and we explained our automated data collection and data analysis procedure. The following key observations can be made based on the analysis of the year-long data set:

  • The use of EGNOS significantly improves the positioning performance compared to GPS stand-alone operation.
  • The vertical accuracy improvement for EGNOS is higher than the horizontal improvement compared to GPS stand-alone performance.
  • The performance of EGNOS with the receivers’ own decoded message corrections is not as good as the performance obtained through EDAS-provided EGNOS corrections.
  • EGNOS does not offer corrections for those GPS satellites that are setting in the northeastern sky of the EGNOS coverage area.
  • The percentage of EGNOS OS requirement failure when analyzed on a daily basis with Rx-decoded corrections is significant. This is mostly due to the poor visibility of GEO satellites from northeastern latitudes.
  • These findings emphasize the fact that there is a great need at northeastern latitudes for an alternative solution to the GEO satellites broadcasting EGNOS corrections. The existing alternative solution is to download the corrections from the Internet through EDAS at the cost of an additional communication link. The other possible alternative could be to broadcast corrections via inclined geosynchronous orbit satellites, or by some other means.

    ACKNOWLEDGMENTS

    This article is based on the paper “Performance of EGNOS in North-East European Latitudes” presented at the 2017 International Technical Meeting of The Institute of Navigation held Jan. 30–Feb. 1, 2017, in Monterey, California. The research was conducted within the FEGNOS project, funded by the Finnish Transport Agency and the Finnish Geospatial Research Institute at the National Land Survey of Finland. More information about the FEGNOS project can be found at www.fegnos.net.

    MANUFACTURER

    The receivers in the FinnRef network are JAVAD GNSS Inc. Delta-G3Ts and the antennas are JAVAD RingAnt_DMs with SCIS radomes.

    MOHAMMAD ZAHIDUL H. BHUIYAN received his Ph.D. degree in 2011 from the Department of Electronics and Communications Engineering, Tampere University of Technology, Finland. He is a research manager in the Department of Navigation and Positioning at the Finnish Geospatial Research Institute (FGI) of the National Land Survey of Finland in Kirkkonummi. He is also the acting deputy head of the institute’s Satellite and Radio Navigation Research Group.

    HEIDI KUUSNIEMI is the director of FGI’s Department of Navigation and Positioning. She is also an adjunct professor in the Department of Built Environment at Aalto University in Espoo and in the Department of Electronics and Communications Engineering at Tampere University of Technology. She is also the current president of the Nordic Institute of Navigation. She received her M.Sc. and D.Sc.(Tech.) degrees from Tampere University of Technology in 2002 and 2005, respectively.

    AURYN SODERINI is an M.Sc. student in the Department of Electronics and Communication Engineering at Tampere University of Technology. He received his B.Sc. in 2012 from the Department of Electronics Engineering at The Third University of Rome.

    SALOMON HONKALA is a researcher at FGI. He holds an M.Sc. (Tech.) degree in electrical engineering from Aalto University.

    SIMO MARILA is a research scientist in FGI’s Department of Geodesy and Geodynamics. He received an M.Sc. degree in 2011 from Aalto University.

    FURTHER READING

    • Authors’ Conference Paper

    “Performance of EGNOS in North-East European Latitudes” by M.Z.H. Bhuiyan, H. Kuusniemi, A. Soderini, S. Honkala and S. Marila in Proceedings of the 2017 International Technical Meeting of The Institute of Navigation, Monterey, California, Jan. 30–Feb. 1, 2017, pp. 627–636.

    • Authors’ Related Work

    “Performance Comparison of Differential GNSS, EGNOS and SDCM in Different User Scenarios in Finland” by S. Marila, M.Z.H. Bhuiyan, J. Kuokkanen, H. Koivula and H. Kuusniemi in Proceedings of ENC 2016, European Navigation Conference 2016, Helsinki, Finland, May 30–June 2, 2016, doi: 10.1109/EURONAV.2016.7530550.

    “Low-Cost Precise Positioning Using a National GNSS Network” by M. Kirkko-Jaakkola, S. Söderholm, S. Honkala, H. Koivula, S. Nyberg and H. Kuusniemi in Proceedings of ION GNSS+ 2015, the 28th International Technical Meeting of the Satellite Division of The Institute of Navigation, Tampa, Florida, Sept. 14–18, 2015, pp. 2570-2577.

    “Finnish Permanent GNSS Network: From Dual-frequency GPS to Multi-satellite GNSS” by H. Koivula, J. Kuokkanen, S. Marila, T. Tenhunen, P. Häkli, U. Kallio, S. Nyberg and M. Poutanen, in Proceedings of UPINLBS 2012, the 2nd International Conference and Exhibition on Ubiquitous Positioning, Indoor Navigation and Location-Based Service, Helsinki, Finland, Oct. 3–4, 2012, doi: 10.1109/UPINLBS.2012.6409771.

    • European Geostationary Navigation Overlay Service

    EGNOS Safety of Life (SoL) Service Definition Document, Version 3.1, European GNSS Agency, Prague, Sept. 26, 2016.

    EGNOS Open Service (OS) Service Definition Document, Version 2.2, European GNSS Agency, Prague, Feb. 12, 2015.

    “The Future is Now: GPS + GLONASS + SBAS = GNSS” by L. Wanninger in GPS World, Vol. 19, No. 7, July 2008, pp. 42–48.

    EGNOS – the European Geostationary Navigation Overlay System – A Cornerstone of Galileo, edited by J. Ventura-Traveset and D. Flament, ESA SP-1303, European Space Agency, Noordwijk, The Netherlands, 2006.

    • EGNOS Data Access Service

    “EDAS (EGNOS Data Access Service): Differential GNSS Corrections for Land Applications” by J. Vázquez, E. Lacarra, M.A. Sánchez and Pedro Gómez in Proceedings of ION GNSS+ 2016, the 29th International Technical Meeting of the Satellite Division of The Institute of Navigation, Portland, Oregon, Sept. 12–16, 2016, pp. 3550–3561.

    EGNOS Data Access Service (EDAS) Service Definition Document, Version 2.1, European GNSS Agency, Prague, Dec. 19, 2014.

    EGNOS Data Access Service (EDAS) website.

    • Finland’s EGNOS Monitoring and Performance Evaluation

    Website: https://fegnos.net/

    • PEGASUS EGNOS Analyzing Tool

    PEGASUS Software User Manual, PEG-SUM-01, Issue M, Eurocontrol, Brussels, Jan. 16, 2004.

    • Satellite-Based Augmentation Systems

    “Satellite Based Augmentation Systems” by T. Walter, Chapter 12 in Springer Handbook of Global Navigation Satellite Systems, edited by P.J.G. Teunissen and O. Montenbruck, published by Springer International Publishing AG, Cham, Switzerland, 2017.

    Minimum Operational Performance Standards for Global Positioning/Satellite-Based Augmentation System Airborne Equipment, RTCA/DO-229E, prepared by SC-159, RTCA Inc., Washington, D.C., Dec. 15, 2016.


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    Confide – White House Staff’s Favorite “Secure” Messaging App – Isn’t Really Secure | killexams.com real questions and Pass4sure dumps

    Multiple vulnerabilities discovered that allow interception of messages

    Confide, an app that touted itself for end-to-end encryption, recently made headlines when it was reported that the White House officials were using it for self-destructing messages. The app reportedly helped staffers to privately leak confidential information to the press and to communicate with each other without the risk of messages being leaked.

    As reported in February, the three-year-old app saw 3x new user sign-ups over a week after the first reports of the Trump administration using the app came forward. “We do see a spike in across the board metrics when there is a major news cycle about the vulnerability of digital communications,” Confide’s co-founder and president Jon Brod had said.

    The secure messaging app that was widely used by the White House staff claims that nobody can intercept and read messages after they are read. Turns out that the messaging app isn’t as secure as it was advertised to be.

    “After they [messages] are read once, they are gone. We delete them from our servers and wipe them from the device. No forwarding, no printing, no saving … no nothing,” the app claims.

    However, two independent security research teams have found several flaws in Confide, which actually enable the company to read user messages. The app could allow attackers to impersonate other users by hijacking their account session, or by guessing their passwords. Flaws also enabled researchers to become an intermediary in a conversation and decrypt messages.

    Security researchers from Seattle-based cybersecurity firm IOActive discovered and reported several vulnerabilities to the app that have now been fixed. The researchers were also able to gain access to 7,000 account records created over the span of two days, giving them real names and email addresses of users. They estimated the database to contain between 800,000 and one million records. Out of this two-day data sample, research team spotted a President Trump associate and a number of Department of Homeland Security employees who had downloaded the app.

    “The application failed to adequately prevent brute-force attacks on user account passwords,” research team wrote. When asked by The Reg, Confide said that none of the reported flaws had been exploited.

    We were able to detect anomalous behavior and remediate many of the issues in real time during IOActive’s testing starting on February 24. We were able to quickly address the remaining issue after the initial contact and roll out client updates in less than 48 hours. Not only have these issues been addressed, but we also have no detection of them being exploited by any other party.

    While the Confide team touted the app as everyone’s “confidential messenger,” the company apparently didn’t have any encryption experts on its team until last month, when it started receiving reports of these flaws.

    Researchers at Quarkslab also found design flaws that could potentially allow attackers to intercept messages before decryption. Making a number of modifications to the client to analyze the Confide protocol, they said that the app’s claims of message deletion and screenshot prevention can be defeated.

    “The end-to-end encryption used in Confide is far from reaching the state of the art,” researchers wrote. “Building a secure instant messaging app is not easy, but when claiming it, some strong mechanisms should really be enforced since the beginning.”

    In response, Brod said that “researchers intentionally undermined the security of their own system to bypass several layers of Confide’s protection, including application signatures, code obfuscation, and certificate pinning.”

    “The attack that they claim to be demonstrating does not apply to legitimate users of Confide, who are benefiting from multiple security protections that we have put in place,” he added.

    Confide’s vulnerabilities come only a day after WikiLeaks released a number of documents on the CIA’s spying and hacking operations. As has been said multiple times since yesterday, apps that offer end-to-end encryption are essential for secure communications. However, if you do want your messages to be safe from interception, better stay away from Confide.

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    Nortel 920-331 Exam (Communication Server 1000 Rls. 5.0 Database Administrator) Detailed Information



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