Which command accomplish this task?

Refer to the exhibit.

An engineer must deny Telnet traffic from the loopback interface of router R3 to the loopback interface of router R2 during the weekend hours. All other traffic between the loopback interfaces of routers R3 and R2 must be allowed at all times.

Which command accomplish this task?

A)

B)

C)

D)

A. Option A

B. Option B

C. Option C

D. Option D

View Answer

Answer: A

Explanation:

To deny Telnet traffic from the loopback interface of router R3 to the loopback interface of router R2 during the weekend hours while allowing all other traffic at all times, the correct command is Option A. This command creates a time-range named “WEEKEND” that defines the weekend hours from midnight on Saturday to just before midnight on Sunday. It then specifies an access list (150) that denies TCP traffic (Telnet uses TCP port 23) from the loopback interface of R3 to that of R2 during the defined time-range. The access list also permits all other IP traffic at all times.

References: Implementing and Operating Cisco Service Provider Network Core Technologies source documents or study guide.