Multiple choice

An administrator issues the command confreg 0×2142 at the rommon 1> prompt. What is the effect when this router is rebooted?

  1. Contents in RAM will be erased.

  2. Contents in RAM will be ignored.

  3. Contents in NVRAM will be erased.

  4. Contents in NVRAM will be ignored.

Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Configuration register 0x2142 tells the router to ignore the contents of NVRAM (startup-config) during boot. This is used in password recovery procedures to bypass the startup configuration, allowing access to the router without knowing the enable password.