ICND2: Interconnecting Cisco Networking Devices Part 2 (legacy) — Question 37

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

Answer options

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

Correct answer:

Explanation

The correct answer is C, as routers use the default route to handle packets destined for networks not found in the routing table. Option A is incorrect because discarding the packet would not utilize any routing logic. Options B and D are also incorrect because broadcasting to all networks or interfaces does not address the routing function that the default route serves.