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  3. You are trying to connect directly into the LAN prot of a Ezonexam router. You want to telnet to the local Cisco router using TC

You are trying to connect directly into the LAN prot of a Ezonexam router. You want to telnet to the local Cisco router using TC

admin2009-05-19  39
问题 You are trying to connect directly into the LAN prot of a Ezonexam router. You want to telnet to the local Cisco router using TCP/IP but cannot create a session.
What should you do to resolve the problem?
A. Use a straight-through cable to connect your computer’s COM port to the router’s console port.
B. Use a crossover cable to connect your computer’s COM port to the router’s console port.
C. Use a straight-through cable to connect your computer’s COM port to the router’s Ethernet port.
D. Use a crossover cable to connect your computer’s Ethernet port to the router’s Ethernet port.
E. Use a rollover cable to connect your computer’s Ethernet port to the router’s Ethernet port.
F. Use a straight-through cable to connect your computer’s Ethernet port to the router’s Ethernet port.
G. None of the above
选项
答案D
解析 Explanation:
In order to connect directly to a router via telnet, you must connect to the router via one of the LAN ports. When connecting directly to the Ethernet port with a PC without the use of a switch or hub, a crossover cable must be used.

Incorrect Answers:
A, B, C. In order to telnet directly into the router via a TCP/IP connection, the COM port of the PC can not be used. The COM port is used for direct terminal emulation programs such as HyperTerminal.

E. Rollover cables are used for console connections into the router, not for TCP/IP connections.

F. Straight through cables are used for connections into a switch or hub from the PC. It will not work for direct Ethernet connections into the router.
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