Final answer:
The command 'diagnose debug crashlog read' is used to display crashlog details, aiding in the diagnosis of crash issues by providing error messages and system state information.
Step-by-step explanation:
The command diagnose debug crashlog read is commonly used in computer networking to display crashlog details. This command is part of a diagnostic toolset available on network devices such as routers or switches, often used by network engineers or system administrators to diagnose crash issues. When a system experiences a crash or unexpected interruption, the device often generates a crash log, which records details about the state of the system at the time of the crash. These logs provide invaluable information for troubleshooting and determining the cause of the crash.
To answer the student's question, the correct option would be d) Display crashlog details. This choice accurately describes the action taken by the command in question. By executing this command, an individual can review the crash logs, which contain data such as error messages, system state, and other diagnostics information that can assist in understanding and resolving the issues that led to the system's instability.