Which two commands set the configuration register value? (Choose two.)

Question

Options

• Arommon>confreg 0x2102
• Brouter(config)#confreg 0x2102
• Crommon>config-register 0x2102
• Drouter(config)#configuration-register 0x2102
• Erouter(config)#config-register 0x2102

• A
  81% (25)
• B
  3% (1)
• C
  10% (3)
• D
  6% (2)

Explanation

The configuration register on Cisco routers and switches controls specific bootup behaviors. 1. In ROMmon Mode: rommon>confreg 0x2102 : This command is used when the device is in ROMmon mode (a basic operating system loaded when the full Cisco IOS cannot be found). ROMmon offers limited functionality and is often used for troubleshooting or password recovery. 2. In Global Configuration Mode: router(config)#config-register 0x2102 : This command is used from within the Cisco IOS itself when you have normal access to the router. You would enter privileged EXEC mode and then global configuration mode to use it. Importance of Configuration Register Settings: The most common reasons to modify the configuration register are: Password Recovery: Setting the configuration register to 0x2142 tells the router to ignore the startup configuration (stored in NVRAM), allowing you to bypass password protection. Changing Boot Behavior: Settings can control the boot sequence, such as specifying where the Cisco IOS image should be loaded from.

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