Refer to the exhibit. Which interface is chosen to forward traffic to the host at 192.168.0.55?

The correct answer is C. GigabitEthernet0/1. Routers use the longest prefix match rule to select the most specific route in their routing table when forwarding traffic to a destination IP address.

Submitted by sofia.br· Mar 5, 2026IP Connectivity

Question

Refer to the exhibit. Which interface is chosen to forward traffic to the host at 192.168.0.55?

Exhibits

Options

AGigabitEthernet0/3
BNull0
CGigabitEthernet0/1
DGigabitEthernet0/2

How the community answered

(53 responses)

A
13% (7)
B
4% (2)
C
77% (41)
D
6% (3)

Why each option

Routers use the longest prefix match rule to select the most specific route in their routing table when forwarding traffic to a destination IP address.

AGigabitEthernet0/3

BNull0

A Null0 interface is typically used to discard traffic to prevent routing loops or for advertising aggregate routes, not to forward specific user traffic to a reachable host.

CGigabitEthernet0/1Correct

DGigabitEthernet0/2

GigabitEthernet0/2 is associated with the 192.168.1.0/24 route, which does not match the destination IP address of 192.168.0.55.

Concept tested: Longest prefix match routing

Source: https://www.cisco.com/c/en/us/support/docs/ip/border-gateway-protocol-bgp/23769-bgp-longest-match.html

Topics

#IP routing#Routing table lookup#Packet forwarding

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