CompTIA Linux+ Powered by LPI (LX0-104) — Question 14

What is true regarding a default route?

Answer options

• A. The default route is always used first. When the default route is not available more specific routes are tried.
• B. When a default route is set, all other routes are disabled until the default route is deleted.
• C. The default route is only used if there is not a more specific route to a destination host or network.
• D. Without a default route, no network communication even in directly attached networks is possible.

Correct answer: C

Explanation

The correct answer, C, accurately describes that a default route is only employed when there are no more specific routes to a given destination. Option A is misleading because the default route is not always used first; it only activates when no specific routes exist. Option B is incorrect as a default route does not disable other routes; they can coexist. Option D is false since direct communication can still happen without a default route if there are specific routes to those networks.