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- Question
Which command will show you whether a DTE or a DCE cable is plugged into serial 0?
Options- A. sh int s0
- B. sh int serial 0
- C. show controllers serial 0
- D. show serial 0 controllers
- Correct Answer
- show controllers serial 0
ExplanationThe show controllers serial 0 command will show you whether either a DTE or DCE cable is connected to the interface. If it is a DCE connection, you need to add clocking with the clock rate command. - 1. You type the following command into the router and receive the following output:
Why was this error message displayed?Router#show serial 0/0 ^ % Invalid input detected at '^' marker.
Options- A. You need to be in privileged mode.
- B. You cannot have a space between serial and 0/0.
- C. The router does not have a serial0/0 interface.
- D. Part of the command is missing. Discuss
- 2. What layer of the OSI model would you assume the problem is in if you type show interface serial 1 and receive the following message? "Serial1 is down, line protocol is down."
Options- A. Physical layer
- B. Data Link layer
- C. Network layer
- D. None. It is a router problem. Discuss
- 3. If you wanted administrators to see a message when logging into the router, which command would you use?
Options- A. message banner motd
- B. banner message motd
- C. banner motd
- D. message motd Discuss
- 4. What is the problem with an interface if you type show interface serial 0 and receive the following message? "Serial0 is administratively down, line protocol is down."
Options- A. The keepalives are different times.
- B. The administrator has the interface shut down.
- C. The administrator is pinging from the interface.
- D. No cable is attached. Discuss
- 5. Which command will delete the contents of NVRAM on a router?
Options- A. delete NVRAM
- B. delete startup-config
- C. erase NVRAM
- D. erase start Discuss
- 6. Which of the following commands will display the current IP addressing and the layer 1 and 2 status of an interface?
- show version
- show protocols
- show interfaces
- show controllers
- show ip interface
Options- A. 1, 2 and 4
- B. 2, 3 and 5
- C. 3 and 4 only
- D. None of the above Discuss
- 7. You want to totally reinitialize the router and replace the current running-config with the current startup-config. What command will you use?
Options- A. replace run start
- B. copy run start
- C. copy start run
- D. reload Discuss
- 8. You type show running-config and get this output:
What do the two numbers following the exec-timeout command mean?[output cut] Line console 0 Exec-timeout 1 35 Password CURIOUSTABPASSWD Login [output cut]
Options- A. If no command has been typed in 35 seconds, the console connection will be closed.
- B. If no router activity has been detected in 1 hour and 35 minutes, the console will be locked out.
- C. If no commands have been typed in 1 minute and 35 seconds, the console connection will be closed.
- D. If you're connected to the router by a Telnet connection, input must be detected within 1 minute and 35 seconds or the connection will be closed. Discuss
- 9. Which of the following commands will configure all the default VTY ports on a router?
Options- A. Router#line vty 0 4
- B. Router(config)#line vty 0 4
- C. Router(config-if)#line console 0
- D. Router(config)#line vty all Discuss
- 10. Which of the following commands displays the configurable parameters and statistics of all interfaces on a router?
Options- A. show running-config
- B. show startup-config
- C. show interfaces
- D. show versions Discuss
IOS and Security Device Manager problems
Search Results
Correct Answer: Part of the command is missing.
Explanation:
You can view the interface statistics from user mode, but the command is
show interface serial 0/0.
Correct Answer: Physical layer
Explanation:
If you see that a serial interface and the protocol are both down, then you have a Physical layer problem. If you see
serial1 is up,
line protocol is down, then you are not receiving (Data Link) keepalives from the remote end.
Correct Answer: banner motd
Explanation:
The typical banner is a message of the day (MOTD) and is set by using the global configuration mode command
banner motd.
Correct Answer: The administrator has the interface shut down.
Explanation:
If an interface is shut down, the
show interface command will show the interface as administratively shut down. (It is possible that no cable is attached, but you can't tell that from this message.)
Correct Answer: erase start
Explanation:
The
erase startup-config command erases the contents of NVRAM and will put you in setup mode if the router is restarted.
Correct Answer: 2, 3 and 5
Explanation:
The commands
show protocols,
show interfaces, and
show ip interface will show you the layer 1 and 2 status and the IP addresses of your router's interfaces.
Correct Answer: reload
Explanation:
To completely replace the running-config with the startup-config, you must reload the router. Note : You may have picked option C, which isn't a bad answer. Remember, though, it doesn't replace the configuration, it appends it.
Correct Answer: If no commands have been typed in 1 minute and 35 seconds, the console connection will be closed.
Explanation:
The
exec-timeout command is set in minutes and seconds.
Correct Answer: Router(config)#line vty 0 4
Explanation:
From global configuration mode, use the
line vty 0 4 command to set all five default VTY lines.
Correct Answer: show interfaces
Explanation:
With the
show interfaces command, you can view the configurable parameters, get statistics for the interfaces on the router, verify if the interfaces are shut down, and see the IP address of each interface.
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