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●Those interested in networking technologies and seeking H3C certification

●Engineers of H3C agents

●Teachers of H3C training partners

●Maintenance/operation staff and technical support staff for H3C devices

●You are familiar with operating computers in a Windows environment.

●You have knowledge of data communication network fundamentals and common network devices.

●You have a basic understanding of TCP/IP.

Discuss computer network communications and TCP/IP protocols.

Describe how routers and switches work and how to configure them.

Describe, configure, and maintain the major LAN and WAN protocols.

Describe and configure IP routing and routing protocols.

Install, configure, and maintain low-end and mid-range routers.

Troubleshoot network connections and software configurations of routers. 

Network essentials, seven-layer OSI reference model, and TCP/IP model

IP subnetting and the fundamentals of major TCP/IP protocols

Typical LAN and WAN technologies 

The fundamentals and configuration methods of routers and Ethernet switches

The fundamentals and configuration of IP routing and routing protocols

ACL-based packet filtering

The fundamentals and configuration of network address translation (NAT)

ISDN and DCC basics 

The following equipment working on the data link layer of the OSI reference model is ______ .

A. WAN switch

B. Router

C. Repeater

D. Hub

Answer: A

Which of the following statements about fiber optics are wrong ? (Multiple Choice)

A. Multimode fiber can transmit light with different wavelengths and different incident angles

B. The core of multimode fiber is thinner

C. When multimode fiber is used, the maximum transmission distance of the signal is longer than that of single mode fiber

D. The cost of multimode fiber is lower than that of single mode fiber

Answer: BC

The default control protocol port used by FTP is ______ .

A. 20

B. 21

C. 23

D. 22

Answer: B

Use the ______ command to specify the operating system software to be used next time.

A. startup

B. boot-loader

C. bootfile

D. boot startup

Answer: B

If a port running STP in the Ethernet switch does not receive or forward data, receives and sends BPDUs , and does not perform address learning, then the port should be in the ______ state.

A. Blocking

B. Listening

C. Learning

D. Forwarding

E. Waiting

F. Disable

Answer: B

The command to configure the bridge SWA bridge priority to 0 is ______ .

A. [SWA] stp priority 0

B. [SWA-Ethernet1/0/1] stp priority 0

C. [SWA] stp root priority 0

D. [SWA-Ethernet1/0/1] stp root priority 0

Answer: A

The IP address 10.0.10.32 and the mask 255.255.255.224 represent a ______ .

A. Host address

B. Network address

C. Broadcast address

D. None of the above

Answer: B