Ios And Security Device Manager MCQs with Explanations

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.

You can view the interface statistics from user mode, but the command is show interface serial 0/0

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.

The exec-timeout command is set in minutes and seconds.

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.

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.

From global configuration mode, use the line vty 0 4 command to set all five default VTY lines.

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.

The erase startup-config command erases the contents of NVRAM and will put you in setup mode if the router is restarted.

You can exit setup mode at any time by using the keystroke Ctrl+C .

To copy the running-config to NVRAM so that it will be used if the router is restarted, use the copy running-config startup-config command ( copy run start for short).

The % ambiguous command error means that there is more then one possible command that starts with ru . Use a question mark to find the correct command.

The typical banner is a message of the day (MOTD) and is set by using the global configuration mode command banner motd .

Cisco routers, if they do not have the Enterprise edition of the IOS, will default to 5 simultaneous Telnet sessions.

The command service password-encryption , from global configuration mode, will encrypt the passwords.

The 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.

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.

If you delete the startup-config and reload the router, the router will automatically enter setup mode. You can also type setup from privileged mode at any time.

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.)