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Exam Codes : JK0-023
Exam Description : CompTIA Network+ JK0-023 has been updated and reorganized to address the current networking technologies with expanded coverage of several domains by adding:
Critical security concepts to helping networking professionals work with security practitioners
Key cloud computing best practices and typical service models
Coverage of newer hardware and virtualization techniques
Concepts to provide individuals the combination of skills to keep the network resilient
Number of Questions Maximum of 90 questions
Type of Questions : Multiple Choice Questions (single and multiple response), drag and drops and performance-based
Length of Test : 90 Minutes
Passing Score : 720 (on a scale of 100-900)
Recommended Experience CompTIA A+ Certification and At least 9 to 12 months of networking experience
Languages English, German, Japanese
In Development: Spanish, Portuguese

CompTIA Network+ helps develop a career in IT infrastructure covering troubleshooting, configuring, and managing networks.

Network+ ensures an IT professional has the knowledge and skills to:
Design and implement functional networks
Configure, manage, and maintain essential network devices
Use devices such as switches and routers to segment network traffic and create resilient networks
Identify benefits and drawbacks of existing network configurations
Implement network security, standards, and protocols
Troubleshoot network problems
Support the creation of virtualized networks

Identify basic network theory concepts and major network communications methods.
• Describe bounded network media.
• Identify unbounded network media.
• Identify the major types of network implementations.
• Identify TCP/IP addressing and data delivery methods.
• Implement routing technologies.
• Identify the major services deployed on TCP/IP networks.
• Identify the infrastructure of a WAN implementation.
• Identify the components used in cloud computing and virtualization.
• Describe basic concepts related to network security.
• Prevent security breaches.
• Respond to security incidents.
• Identify the components of a remote network implementation.
• Identify the tools, methods, and techniques used in managing a network.
• Describe troubleshooting of issues on a network.

Module 1 / Local Area Networks
Topologies and the OSI Model • Key Features of Networks • Network Topologies • The OSI Model • Physical Layer • Data Link Layer • Network Layer • Transport Layer • Upper Layers • OSI Model Summary • Labs • VM Orientation
Ethernet • Transmission Media • Media Access Control • Broadcast Domains • Ethernet Frames • Ethernet Deployment Standards • MAC Addressing • Address Resolution Protocol (ARP) • Packet Sniffers • Labs • Configuring Ethernet Networking
Hubs, Bridges, and Switches • Hubs and Bridges • Switches • Switch Interface Configuration • Spanning Tree Protocol (STP) • Power over Ethernet (PoE)
Infrastructure and Design • Network Infrastructure Implementations • Planning an Enterprise Campus Network • Network Hierarchy and Distributed Switching • Software Defined Networking • Planning a SOHO Network • TCP/IP Protocol Suite
Policies and Best Practices • Procedures and Standards • Safety Procedures • Incident Response Policies • Security and Data Policies • Password Policy • Employee Policies

Module 2 / IP Addressing
Internet Protocol • IPv4 • IPv4 Address Structure • Subnet Masks • IP Routing Basics • ipconfig / ifconfig • ICMP and ping • Labs • Configuring IPv4 Networking
IPv4 Addressing • IPv4 Addressing Schemes • Classful Addressing • Public versus Private Addressing • Subnetting and Classless Addressing • Planning an IPv4 Addressing Scheme • Public Internet Addressing • Variable Length Subnet Masks (VLSM) • Labs • Configuring IPv4 Subnets
IPv6 Addressing • IPv6 Address Format • IPv6 Addressing Schemes • IPv6 Address Autoconfiguration • Migrating to IPv6 • Labs • Configuring IPv6 Networking
DHCP and APIPA • IPv4 Address Autoconfiguration • Configuring DHCP • DHCPv6 • Labs • Configuring Address Autoconfiguration

Module 3 / Internetworking
Routing • Routing Basics • Routing Algorithms and Metrics • Dynamic Routing Protocols • Administrative Distance and Route Redistribution • IPv4 and IPv6 Internet Routing • High Availability Routing • Installing and Configuring Routers • Routing Troubleshooting Tools • Labs • Configuring Routing
TCP and UDP • Transmission Control Protocol (TCP) • User Datagram Protocol (UDP) • TCP and UDP Ports • Port Scanners • Protocol Analyzers • Labs • TCP and Port Scanning
Name Resolution and IPAM • Host Names and FQDNs • Domain Name System • Configuring DNS Servers • Resource Records • Name Resolution Tools • IP Address Management (IPAM) • Labs • Configuring Name Resolution and IPAM
Monitoring and Scanning • Performance Monitoring • Network Monitoring Utilities • Logs and Event Management • Simple Network Management Protocol • Analyzing Performance Metrics • Patch Management • Vulnerability Scanning • Labs • Performance Testing and Monitoring
Network Troubleshooting • Troubleshooting Procedures • Identifying the Problem • Establishing a Probable Cause • Establishing a Plan of Action • Troubleshooting Hardware Failure Issues • Troubleshooting Addressing Issues • Troubleshooting DHCP Issues • Troubleshooting Name Resolution • Troubleshooting Services

Module 4 / Applications and Security
Applications and Services • TCP/IP Services • HTTP and Web Servers • SSL / TLS and HTTPS • Email (SMTP / POP / IMAP) • Voice Services (VoIP and VTC) • Real-time Services Protocols • Quality of Service • Traffic Shaping • Bottlenecks and Load Balancing • Multilayer Switches • Labs • Configuring Application Protocols
Virtualization, SAN, and Cloud Services • Virtualization Technologies • Network Storage Types • Fibre Channel and InfiniBand • iSCSI • Cloud Computing • Configuring Cloud Connectivity
Network Security Design • Security Basics • Common Networking Attacks • Network Segmentation and DMZ • Virtual LANs (VLAN) • VLAN Trunks • Network Address Translation (NAT) • Device and Service Hardening • Honeypots and Penetration Tests
Network Security Appliances • Basic Firewalls • Stateful Firewalls • Deploying a Firewall • Configuring a Firewall • Deploying a Proxy • Intrusion Detection Systems (IDS) • Denial of Service • Labs • Configuring a NAT Firewall
Authentication and Endpoint Security • Authentication and Access Controls • Social Engineering • Authentication Technologies • PKI and Digital Certificates • Local Authentication • RADIUS and TACACS+ • Directory Services • Endpoint Security • Network Access Control • Labs • Secure Appliance Administration

Module 5 / Operations and Infrastructure
Network Site Management • Network Cabling Solutions • Distribution Frames • Change and Configuration Management • Network Documentation and Diagrams • Labeling • Physical Security Devices • Business Continuity and Disaster Recovery • Network Link Management • Power Management • Backup Management • Labs • Network Inventory Management
Installing Cabled Networks • Twisted Pair Cable (UTP / STP / ScTP) • Twisted Pair Connectors • Wiring Tools and Techniques • Cable Testing Tools • Troubleshooting Wired Connectivity • Other Copper Cable Types • Fiber Optic Cable and Connectors • Transceivers and Media Converters
Installing Wireless Networks • Wireless Standards (IEEE 802.11) • Wireless Network Topologies • Wireless Site Design • Troubleshooting Wireless Connectivity • Wireless Security • Wi-Fi Authentication • Extensible Authentication Protocol • Troubleshooting Wireless Security • Wireless Controllers
Installing WAN Links • Wide Area Networks (WAN) • Telecommunications Networks • Modern Telecommunications Networks • Local Loop Services • Installing WAN Links • Wireless WAN Services • Internet of Things
Configuring Remote Access • Remote Access Services (RAS) • MPLS and PPP • SIP Trunks • Virtual Private Networks (VPN) • SSL / TLS / DTLS VPNs • IPsec • Internet Key Exchange / ISAKMP • Remote Access Servers • Remote Administration Tools • Managing Network Appliances • Remote File Access • Labs • Configuring Secure Access Channels • Configuring a Virtual Private Network