To find the register settings of a Cisco device, which command should you use?

To find the register settings of a Cisco device, which command should you use?

• A. show startup-config
• B. show version
• C. show running-config
• D. show interfaces

Answer: (B)

To find the register settings of a Cisco device, the command "show version" is the correct choice because it displays important information about the device, including the current configuration register setting. The configuration register is a 16-bit value that affects the behavior of the device during the boot process, including how and where it loads its operating system. When you issue the "show version" command, you'll see the configuration register value presented in the output, typically towards the end. This information is crucial for diagnosing boot issues or determining how the device operates in different environments. The bits of this register can dictate actions such as loading a different IOS image, ignoring the startup configuration, or entering ROMmon mode. The other commands do not provide the configuration register setting directly. For example, "show startup-config" displays the saved configuration that will be loaded upon the next reboot, while "show running-config" shows the current configuration in RAM. "Show interfaces" provides details about the network interfaces on the device, including statistics and status, but does not include register settings. Thus, "show version" is specifically designed to include hardware and software status, including those vital register settings.

To find the register settings of a Cisco device, the command "show version" is the correct choice because it displays important information about the device, including the current configuration register setting. The configuration register is a 16-bit value that affects the behavior of the device during the boot process, including how and where it loads its operating system.

When you issue the "show version" command, you'll see the configuration register value presented in the output, typically towards the end. This information is crucial for diagnosing boot issues or determining how the device operates in different environments. The bits of this register can dictate actions such as loading a different IOS image, ignoring the startup configuration, or entering ROMmon mode.

The other commands do not provide the configuration register setting directly. For example, "show startup-config" displays the saved configuration that will be loaded upon the next reboot, while "show running-config" shows the current configuration in RAM. "Show interfaces" provides details about the network interfaces on the device, including statistics and status, but does not include register settings. Thus, "show version" is specifically designed to include hardware and software status, including those vital register settings.