CCNA Routing and Switching (legacy) — Question 15

How does a router handle an incoming packet whose destination network is missing from the routing table?

Answer options

• A. It broadcasts the packet to each interface on the router.
• B. It broadcasts the packet to each network on the router.
• C. It routes the packet to the default route.
• D. It discards the packet. C

Correct answer:

Explanation

The correct answer is C, as routers typically send packets to the default route when the destination is unknown. Options A and B are incorrect because routers do not broadcast packets to all interfaces or networks in this scenario. Option D is also incorrect, as the packet is not discarded if a default route is available.