Cisco CCNA mock exam questions sample test – Question 449

.You are considering a candidate for a job as a Cisco network technician. As part of the assessment process, you ask the candidate to write down the commands required to configure
a serial interface, in the proper order with the correct command prompts. The candidate submits the set of commands shown below (line numbers are for reference only):
1 Router# configure terminal
2 Router(config)# interface S0
3 Router(config)# ip address 192.168.5.5
4 Router(config-if)# enable interface
5 Router(config-if)# description T1 to Raleigh
What part(s) of this submission are incorrect? (Choose all that apply.)

A. The prompt is incorrect on line 1
B. The IP address is missing a subnet mask
C. The prompt is incorrect on line 5
D. The prompt is incorrect on line 3
E. The command on line 4 is incorrect
F. The prompt is incorrect on line 4
G. The description command must be executed before the interface is enabled

Correct Answer: BDE

Explanation:
The IP address is missing a subnet mask, the prompt is incorrect on line 3, and the command enabling the interface (line 4) is incorrect.
The correct prompts and commands are as follows:
Router# configure terminal
Router(config)# interface S0
Router(config-if)# ip address 192.168.5.5 255.255.255.0
Router(config-if)# no shutdown
Router(config-if)# description T1 to Raleigh
The prompt for line 3 would be Router(config-if)# because the interface S0 command was issued immediately prior to the ip address 192.168.5.5 command. The prompt will remain
Router(config-if)# for lines 3, 4, and 5 as each command that applies to the S0 interface is executed, including the description command.
The command to enable the interface is no shutdown, not enable interface. Therefore, the command executed on line 4 was incorrect.
Objective:
Network Fundamentals
Sub-Objective:
Apply troubleshooting methodologies to resolve problems
References:
Home > Support > Using the Command-Line Interface in Cisco IOS Software