Implementing Cisco IP Routing (CCNP ROUTE, legacy) — Question 27

Which security feature can you enable to control access to the vty lines on a router?

Answer options

• A. Exec-time out
• B. Logging
• C. Username and password
• D. Transport output

Correct answer: C

Explanation

Enabling a username and password is essential for authenticating users who access the vty lines, ensuring that only authorized individuals can connect. The other options, such as Exec-time out and Logging, do not provide a method for controlling access; instead, they help manage sessions or track activities.