What exit value does the command 'true' align with and what does that mean?

• A. 1 — It always fails.
• B. 0 — It always runs successfully.
• C. 2 — It sometimes fails.
• D. 255 — It terminates with an error.

Answer: (B)

Exit status signaling is what this question tests. In Unix-like systems, exit code 0 means success, while any non-zero value indicates some kind of error or failure. The command true is a deliberate no-op that simply exits with status 0, so it always signals success. That’s why the correct interpretation is that the exit value is 0 and it ran successfully. The other codes described assume either failure or an undefined meaning for this command, which doesn’t align with true’s defined behavior.