CCNA Exam Practice Question with Answer 1

This tutorial presents a CCNA exam question based on the routing table entries. It explains how routers select a specific route to reach a destination address.

Refer to the exhibit. Which type of route does R1 use to reach host 10.10.12.10/32?

Router1#show ip route

Gateway of last resort is 10.10.10.22 to network 0.0.0.0

          10.0.0.0/8 is variably subnetted, 4 subnets, 3 masks

C	10.10.10.0/30 is directly connected, FastEthernet0/1
O	10.10.12.0/25 [110/6656] via 10.10.10.1, 04:28:31, FastEthernet0/1
C	10.10.10.16/30 is directly connected, FastEthernet0/24
O	10.10.12.144/28 [110/110] via 10.10.10.1, FastEthernet0/1
B*    0.0.0.0/0  [20/0]  via 10.10.10.22, 02:21:24

Explanation

Routers take the default route when no other routers are available in the routing table. Since a route for the given address is available in the routing table, the router will not use the default route. Hence, option A will be incorrect.

A floating static route is a static route that has a manipulated AD value. Routers use the letter S to represent a static route in the routing table. Since the routing table contains no static routes, option D will also be incorrect.

A host route is a route that belongs to a specific host. In slash notation, it always has the value 32 after the slash. Since this routing table has no host routes, option C will also be incorrect.

This tutorial is part of the tutorial series "Routing Table Updating Methods and Route Types". Other parts of this series are the following.
Chapter 1  The show ip route command on Routers
Chapter 2  Routing Table Updating Methods
Chapter 3  Directly Connected Routes and Local Routes
Chapter 4  Static and Floating Static Routes Explained
Chapter 5  Static and Dynamic routes in the Routing table
Chapter 6  Default Route in the Routing Table
Chapter 7  Network Routes and Host Routes Explained
Chapter 8  CCNA Exam Practice Question with Answer 1

A network route is a route that belongs to an IP subnet. If a host route to the destination address is available, the router always uses it to reach the destination. If not, it uses the network route. If it is also not available, it uses the default route. If the default route is also unavailable, it discards the packet. In this example, since the network route is available to reach the destination address, the router will use it. Hence, the correct answer to this question will be option B.

Conclusion

This tutorial presented a CCNA exam question that tests a candidate's ability to understand how routers use routing table entries to make forwarding decisions. It also provides a detailed explanation of all options that help select the correct answer.

Author Laxmi Goswami Updated on 2025-12-09