Networking - Managing a Cisco Internetwork

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Exercise :: Managing a Cisco Internetwork - Managing a Cisco Internetwork

  • Managing a Cisco Internetwork - Managing a Cisco Internetwork
1. 

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.

A. 1, 3 and 4
B. 2, 4 and 5
C. 3 and 5 only
D. 5 only

Answer: Option B

Explanation:

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.

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

A. 1, 2 and 3
B. 1 and 4
C. 3, 4, and 5
D. All of the above

Answer: Option B

Explanation:

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

3. 

You 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.

A. 1 only
B. 3 only
C. 2 and 4 only
D. All of the above

Answer: Option C

Explanation:

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.

4. 

Which three commands can be used to check LAN connectivity problems on a router?

  1. show interfaces
  2. show ip route
  3. tracert
  4. ping
  5. dns lookups

A. 1 ,2 and 4
B. 2 and 5
C. 3 and 5
D. None of the above

Answer: Option A

Explanation:

The tracert command is a Windows command and will not work on a router! A router uses the traceroute command.

5. 

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

A. Tab+Spacebar
B. Ctrl+X, then 6
C. Ctrl+Shift+X, then 6
D. Ctrl+Shift+6, then X

Answer: Option D

Explanation:

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