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Managing a Cisco Internetwork

Answer: C

The default configuration setting of 0x2102 tells the router to look in NVRAM for the boot sequence.

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2.

What information is displayed by the show hosts command?

1.Temporary DNS entries

2.The names of the routers created using the hostname command

3.The IP addresses of workstations allowed to access the router

4.Permanent name-to-address mappings created using the ip host command

5.The length of time a host has been connected to the router via Telnet

Answer: B

The show hosts command provides information on temporary DNS entries and permanent name-to-address mappings created using the ip host command.

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3.

The corporate office sends you a new router to connect, but upon connecting the console cable, you see that there is already a configuration on the router. What should be done before a new configuration is entered in the router?

Answer: C

Before you start to configure the router, you should erase the NVRAM with the erase startup-config command and then reload the router using the reload command.

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4.

Which command loads a new version of the Cisco IOS into a router?

Answer: D

The command copy tftp flash will allow you to copy a new IOS into flash memory on your router.

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5.

You have your laptop directly connected into a router's Ethernet port. Which of the following are among the requirements for the copy flash tftp command to be successful?

1.TFTP server software must be running on the router.

2.TFTP server software must be running on your laptop.

3.The Ethernet cable connecting the laptop directly into the router's Ethernet port must be a straight-through cable.

4.The laptop must be on the same subnet as the router's Ethernet interface.

5.The copy flash tftp command must be supplied the IP address of the laptop.

Answer: B

Before you back up an IOS image to a laptop directly connected to a router's Ethernet port, make sure the TFTP server software is running on your laptop, that the Ethernet cable is a "crossover," and that the laptop is in the same subnet as the router's Ethernet port, and then you can use the copy flash tftp command from your laptop.

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6.

You telnet into a remote device and type debug ip rip, but no output from the debug command is seen. What could the problem be?

Answer: C

To see console messages through your Telnet session, you must enter the terminal monitor command.

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7.

Which command displays the configuration register setting?

Answer: C

The show version command provides you with the current configuration register setting.

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8.

Which command will show you the IOS version running on your router?

Answer: C

The best answer is show version, which shows you the IOS file running currently on your router. The show flash command shows you the contents of flash memory, not which file is running.

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9.

If you want to have more than one Telnet session open at the same time, what keystroke combination would you use?

Answer: D

To keep open one or more Telnet sessions, use the Ctrl+Shift+6 and then X keystroke combination.

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10.

ou are unsuccessful in telnetting into a remote device. What could the problem be?

1.IP addresses are incorrect.

2.Access control list is filtering Telnet.

3.There is a defective serial cable.

4.The VTY password is missing.

Answer: C

The best answers, the ones you need to remember, are that either an access control list is filtering the Telnet session or the VTY password is not set on the remote device.

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