Managing A Cisco Internetwork(Networking ) Questions and Answers

Question 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.
  1.    1, 3 and 4
  2.    2, 4 and 5
  3.    3 and 5 only
  4.    5 only
Explanation:-
Answer: Option B. -> 2, 4 and 5
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.
Question 2. If you want to have more than one Telnet session open at the same time, what keystroke combination would you use?
  1.    Tab+Spacebar
  2.    Ctrl+X, then 6
  3.    Ctrl+Shift+X, then 6
  4.    Ctrl+Shift+6, then X
Explanation:-
Answer: Option D. -> Ctrl+Shift+6, then X
To keep open one or more Telnet sessions, use the Ctrl+Shift+6 and then X keystroke combination.
Question 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.
  1.    1 only
  2.    3 only
  3.    2 and 4 only
  4.    All of the above
Explanation:-
Answer: Option C. -> 2 and 4 only
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.
Question 4. 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
  1.    1, 2 and 3
  2.    1 and 4
  3.    3, 4, and 5
  4.    All of the above
Explanation:-
Answer: Option B. -> 1 and 4
The show hosts command provides information on temporary DNS entries and permanent name-to-address mappings created using the ip host command.
Question 5. 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
  1.    1 ,2 and 4
  2.    2 and 5
  3.    3 and 5
  4.    None of the above
Explanation:-
Answer: Option A. -> 1 ,2 and 4
The tracert command is a Windows command and will not work on a router! A router uses the traceroute command.
Question 6. Which command displays the configuration register setting?
  1.    show ip route
  2.    show boot version
  3.    show version
  4.    show flash
Explanation:-
Answer: Option C. -> show version
The show version command provides you with the current configuration register setting.
Question 7. What should the configuration register value be after you successfully complete the password recovery procedure and return the router to normal operation?
  1.    0x2100
  2.    0x2101
  3.    0x2102
  4.    0x2142
Explanation:-
Answer: Option C. -> 0x2102
All Cisco routers have a default configuration register setting of 0x2102, which tells the router to load the IOS from flash memory and the configuration from NVRAM.
Question 8. 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?
  1.    You must type the show ip rip command first.
  2.    IP addressing on the network is incorrect.
  3.    You must use the terminal monitor command.
  4.    Debug output is sent only to the console.
Explanation:-
Answer: Option C. -> You must use the terminal monitor command.
To see console messages through your Telnet session, you must enter the terminal monitor command.
Question 9. You save the configuration on a router with the copy running-config startup-config command and reboot the router. The router, however, comes up with a blank configuration. What can the problem be?
  1.    You didn
  2.    NVRAM is corrupted.
  3.    The configuration register setting is incorrect.
  4.    The newly upgraded IOS is not compatible with the hardware of the router.
Explanation:-
Answer: Option C. -> The configuration register setting is incorrect.
If you save a configuration and reload the router and it comes up either in setup mode or as a blank configuration, chances are you have the configuration register setting incorrect.
Question 10. What does the command o/r 0x2142 provide?
  1.    It is used to restart the router.
  2.    It is used to bypass the configuration in NVRAM.
  3.    It is used to enter ROM Monitor mode.
  4.    It is used to view the lost password.
Explanation:-
Answer: Option B. -> It is used to bypass the configuration in NVRAM.
The default configuration setting is 0x2102, which tells the router to load the IOS from flash and the configuration from NVRAM. 0x2142 tells the router to bypass the configuration in NVRAM so that you can perform password recovery.
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