Question
Which of the following should be used to obtain remote access to a network appliance that has failed to start up properly?
- A. Crash cart
- B. Jump box
- C. Secure Shell
- D. Out-of-band management Correct
Explanation
Out-of-band management uses a dedicated path, such as a console server or a separate management network or cellular modem, that does not depend on the device's production interfaces or a fully booted operating system, so it gives remote access to an appliance that failed to start properly. A crash cart provides console access but requires someone to be physically present. A jump box and Secure Shell both rely on the appliance's in-band network stack being up, which is not the case when it has failed to boot.
