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IOS and Security Device Manager - Networking MCQ Questions and answers

Learn IOS and Security Device Manager mcq questions and answers with easy and logical explanations for various competitive examination, interview and entrance test

1
Which of the following commands sets the secret password to Cisco?
Discuss
Answer & Solution
Answer: Option C
Solution:
The enable secret password is case sensitive, so the second option is wrong. To set the enable secret <password>, use the enable secret <password> command from global configuration mode.
2
You type the following command into the router and receive the following output:
Router#show serial 0/0
        ^
% Invalid input detected at '^' marker.
Why was this error message displayed?
Discuss
Answer & Solution
Answer: Option D
Solution:
You can view the interface statistics from user mode, but the command is show interface serial 0/0
3
Which of the following commands will display the current IP addressing and the layer 1 and 2 status of an interface?
1. show version
2. show protocols
3. show interfaces
4. show controllers
5. show ip interface
Discuss
Answer & Solution
Answer: Option B
Solution:
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.
4
You type show running-config and get this output:
[output cut]
Line console 0
    Exec-timeout 1 35
    Password BIXPASSWD
    Login
[output cut]
What do the two numbers following the exec-timeout command mean?
Discuss
Answer & Solution
Answer: Option C
Solution:
The exec-timeout command is set in minutes and seconds.
5
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."
Discuss
Answer & Solution
Answer: Option A
Solution:
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.
6
Which of the following commands displays the configurable parameters and statistics of all interfaces on a router?
Discuss
Answer & Solution
Answer: Option C
Solution:
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.
7
Which of the following commands will configure all the default VTY ports on a router?
Discuss
Answer & Solution
Answer: Option B
Solution:
From global configuration mode, use the line vty 0 4 command to set all five default VTY lines.
8
You need to find the broadcast address used on a LAN on your router. What command will you type into the router from user mode to find the broadcast address?
Discuss
Answer & Solution
Answer: Option C
Solution:
The command show ip protocols will actually show you the broadcast address for each interface - too bad it isn't a possible answer. Your best answer is show interfaces, which will provide the IP address and mask for each interface.
9
Which command will delete the contents of NVRAM on a router?
Discuss
Answer & Solution
Answer: Option D
Solution:
The erase startup-config command erases the contents of NVRAM and will put you in setup mode if the router is restarted.
10
What keystroke will terminate setup mode?
Discuss
Answer & Solution
Answer: Option C
Solution:
You can exit setup mode at any time by using the keystroke Ctrl+C.