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cisco certified network associate
CCNA certification (Cisco Certified Network Engineer) means having basic and preliminary network knowledge. Personnel with CCNA certification can install, configure and operate local area networks, wide area networks and dial-up access services of small networks (no more than 100 nodes), including but not limited to the following protocols: IP, IGRP, serial, frame relay, IP RIP, VLAN, RIP, Ethernet and access list.

CCNA test is a written test; Including about 50 questions in English, the written test can be completed in VUE/ China authorized Cisco Training and Examination Center; See Cisco official website for Cisco training partners in various cities. A little knowledge of personal computer is basically ok, and basic network operating system is preferred.

People who are interested in network equipment operation and management and want to work in the network field.

Interested in applying for CCNA CCNP CCIP CCSP CCIE.

CCNA Course Content (640-802/ Routing and Switching CCNA)CCNA examines the knowledge and skills required for the installation, operation and troubleshooting of branch networks of small and medium-sized enterprises. The main points of the exam include: connecting to the wide area network; Implement network security mechanism; Network type; Network media; Fundamentals of routing and switching; TCP/IP and OSI models; IP addressing; Wide area network technology; Operate and configure IOS devices; Expand the switching network by VLAN; Determine IP routing; Use access lists to manage IP traffic; Establish a point-to-point connection; Establish a Frame Relay connection. Learn the basic principles of network, Ethernet, wireless LAN, LAN connection and WAN connection, configure Cisco IOS devices and manage the network environment; Topics include VLAN, routing protocol, single area OSPF and EIGRP, access control list, NAT and PAT, IPv6, VPN, PPP and Frame Relay. CCNA course training outline

Describe the working principle of the network

Describe the uses and functions of various network devices.

Select the components required to meet network standards.

Use OSI and TCP/IP models and their related protocols to explain how data flows in the network.

Describe common network applications, including Web applications.

Describe the purpose and basic working mode of protocols in OSI and TCP models.

Describe the impact of applications (IP voice and IP video) on the network.

Interpreting network diagram

Defines the path between two hosts in the network.

Describe the components required for network and Internet communication.

Use hierarchical model method to find and correct common network problems in 1, 2, 3 and 7 layers.

Differences between LAN/WAN working modes and characteristics

Use communication between VLAN and switch to configure, verify and troubleshoot switch failures.

Select appropriate media, cables, ports and connectors to connect the switch to other network devices and hosts.

Explain Ethernet technology and its media access control method.

Explain the basic concepts of network segmentation and traffic management.

Explain the working principle and basic switching concepts of Cisco switches.

Perform and verify initial switch configuration tasks including remote access management.

Use basic tools (including: ping, traceroute, telnet, SSH, arp, ipconfig), SHOW (display) and DEBUG (debug) commands to check the network status and the operation of the switch.

Discover, diagnose and solve common switching network media problems, configuration problems, auto-negotiation and switch hardware failures.

Describe enhanced switching technologies (including VTP, RSTP, VLAN and PVSTP, 802. 1q).

Describe how VLAN creates logically independent networks and the necessity of routing between these logically independent networks.

Configure, verify and troubleshoot VLAN.

Configure, verify and troubleshoot trunk failures on Cisco switches.

Configure, verify and troubleshoot inter-VLAN routing.

Configure, verify and troubleshoot VTP.

Configure, verify and troubleshoot RSTP working status.

Explain the output of various show (display) and debug (debug) commands to verify the working state of Cisco switching network.

Implement basic switch security mechanism (including port security mechanism, trunk access, vlan management except vlan 1, etc.). ).

Implement IP addressing mechanism and IP service to meet the needs of branch networks of medium-sized enterprises.

Describe the operation method and advantages of using private and public ***IP addresses.

Explain the working mode and advantages of using DHCP and DNS.

Configure, verify and troubleshoot DHCP and DNS on the router (including CLI/SDM).

Implement static and dynamic addressing services for hosts in LAN environment.

Calculate and apply the addressing mechanism (including VLSM IP addressing design) in the network.

Use VLSM and summarization to determine the appropriate classless addressing mechanism to meet the addressing requirements of LAN/WAN environment.

Describe the technical requirements for running IPv6 and IPv4 (including protocols, dual protocol stacks, tunnels, etc.). ).

Describe the IPv6 address.

Identify and correct common problems related to IP addressing and host configuration.

Configure, verify and troubleshoot basic router operations and routing problems on Cisco devices.

Describe the basic routing concepts (including packet forwarding and router lookup process)

Describe the operation of Cisco router (including router startup process, POST, router components).

Select the appropriate media, cables, ports and connectors to connect the router to other network devices and hosts.

Configure, verify and troubleshoot RIPv2.

Access and use the router to set basic parameters (including CLI/SDM).

Connect, configure and verify the working status of the device interface.

Use ping, traceroute, telnet, SSH or other tools to verify the device configuration and network connection.

According to the specific routing requirements, perform and verify the routing configuration tasks of static routes or default routes.

Manage IOS configuration files (including saving, editing, upgrading and restoring).

Manage Cisco IOS

Compare routing methods and routing protocols.

Configure, verify and troubleshoot OSPF.

Configure, verify and troubleshoot EIGRP.

Verify network connectivity (including using ping, traceroute, telnet or SSH).

Troubleshoot routing problems.

Use SHOW and DEBUG commands to verify the hardware and software of the router.

Implement basic router security mechanism.

Explain and select the appropriate management tasks required for WLAN.

Describe the standards related to wireless media (including IEEE WI-FI Alliance, ITU/FCC).

Determine and describe the purpose of components in small wireless networks (including: SSID, BSS, ess).

Determine the basic parameters for configuring a wireless network and ensure that the device is connected to the correct access point.

Compare the wireless security features and functions of WPA security mechanism (including: open, WEP, WPA- 1/2).

Identify common problems (including interface and configuration errors) in wireless network setup.

Identify the security threats of the network and describe the general methods to eliminate these threats.

Describe the increasing network security threats and explain how to implement a comprehensive security strategy.

The need to resist network security threats.

Explain the general methods to defend against common security threats of network devices, hosts and applications.

Describe the functions of common security devices and applications.

Describe the operation method of adopting recommended security mechanism, including the first step to protect the security of network equipment.

Implement, verify and troubleshoot NAT and ACL in the branch network of medium-sized enterprises.

Describe the purpose and type of ACL.

Configure and apply ACL (including CLI/SDM) according to network filtering requirements.

Use SDM/CLI to configure and apply ACL to restrict telnet and SSH access to the router.

Verifying and monitoring ACL in network environment

Troubleshooting ACL.

Explain the basic operating state of NAT.

Use CLI/SDM to configure NAT for a given network requirement.

Eliminate NAT problems.

Implementing and verifying WAN links

Describe various ways to connect to the WAN.

Configure and verify the basic WAN serial connection.

Configure and verify Frame Relay on Cisco routers.

Troubleshoot problems in WAN implementation.

Describe VPN technology (including: importance, advantages, functions, influences and components)

Configure and change PPP connections between Cisco routers. Customer service engineer, network engineer, system engineer, system integration engineer, network management engineer, R&D engineer, network technical director and general manager of system integration.