CCNA Guide to Cisco Networking Chapters 7–14:
Comprehensive Review Questions and Expert Answers
for Exam Success
Question 1: What is the administrative distance of RIP?
A) 100
B) 110
C) 120
D) 90
Correct Answer: C) 120
Rationale: The administrative distance (AD) is a value used by Cisco routers to rank the
trustworthiness of routing information learned from different sources. RIP (Routing Information
Protocol) has a default administrative distance of 120.
Question 2: Link-state routing protocols _________. (Choose all that apply)1
A) Use link-state advertisements to notify neighbor routers of route changes2
B) Send routing tables to neighbors3
C) Reach convergence faster than distance vector routing protocols4
D) Determine the best path via the hop count algorithm5
Correct Answers: A) Use link-state advertisements to notify neighbor routers of route changes
AND C) Reach convergence faster than distance vector routing protocols.
Rationale: Link-state routing protocols (like OSPF and IS-IS) build a complete topology map of
the network by exchanging Link-State Advertisements (LSAs) or Link-State Packets (LSPs) that
describe their directly connected links. This comprehensive view allows them to converge
quickly when network changes occur, as they can re-calculate the shortest path using algorithms
like Dijkstra's. Distance-vector protocols (like RIP) send their entire routing tables to neighbors
and often converge slower. Hop count is a metric used by distance-vector protocols like RIP.
,Question 3: RIP has a maximum hop count of ____.
A) 255
B) 16
C) 15
D) 254
Correct Answer: C) 15
Rationale: RIP (Routing Information Protocol) uses hop count as its metric. A hop count of 15 is
the maximum usable value. Any destination that would require 16 or more hops to reach is
considered unreachable by RIP, effectively limiting its scalability in large networks.
Question 4: Which command enables RIP on a router?
A) router network RIP
B) router rip
C) router igrp
D) router ospf
Correct Answer: B) router rip
Rationale: In Cisco IOS, to enable the RIP routing protocol process, you enter global
configuration mode (configure terminal) and then use the command router rip. This places you
into router configuration mode for RIP.
Question 5: Which command will show the IP routing table of a router?
A) show ip route
B) show ip protocol
C) debug ip igrp events
D) show run
Correct Answer: A) show ip route
, Rationale: The show ip route command is used to display the contents of the IP routing table on
a Cisco router. This table lists all known network destinations, their associated metrics, and the
next-hop IP address or exit interface required to reach them.
Question 6: Nonroutable protocols are able to pass packets among multiple networks?
A) True
B) False
Correct Answer: B) False
Rationale: Non-routable protocols (e.g., NetBEUI) lack the necessary network layer addressing
information that routers require to forward packets between different IP networks or subnets.
They are designed for communication within a single broadcast domain or local area network
segment.
Question 7: IGRP can use which of the following as metrics? (Choose all that apply)
A) Hop count
B) Bandwidth
C) Delay
D) Split horizon
Correct Answers: A) Hop count, B) Bandwidth, AND C) Delay.
Rationale: IGRP (Interior Gateway Routing Protocol), a Cisco proprietary distance-vector
protocol, uses a composite metric that can include bandwidth, delay, reliability, and load. While
hop count is a primary metric for RIP, IGRP also factors in hop count as part of its composite
metric calculation for path determination. Split horizon is a loop prevention mechanism, not a
metric.
Question 8: Which of the following is a routed protocol? (Choose all that apply)
A) NetBEUI
B) TCP/IP
C) IPX/SPX
Comprehensive Review Questions and Expert Answers
for Exam Success
Question 1: What is the administrative distance of RIP?
A) 100
B) 110
C) 120
D) 90
Correct Answer: C) 120
Rationale: The administrative distance (AD) is a value used by Cisco routers to rank the
trustworthiness of routing information learned from different sources. RIP (Routing Information
Protocol) has a default administrative distance of 120.
Question 2: Link-state routing protocols _________. (Choose all that apply)1
A) Use link-state advertisements to notify neighbor routers of route changes2
B) Send routing tables to neighbors3
C) Reach convergence faster than distance vector routing protocols4
D) Determine the best path via the hop count algorithm5
Correct Answers: A) Use link-state advertisements to notify neighbor routers of route changes
AND C) Reach convergence faster than distance vector routing protocols.
Rationale: Link-state routing protocols (like OSPF and IS-IS) build a complete topology map of
the network by exchanging Link-State Advertisements (LSAs) or Link-State Packets (LSPs) that
describe their directly connected links. This comprehensive view allows them to converge
quickly when network changes occur, as they can re-calculate the shortest path using algorithms
like Dijkstra's. Distance-vector protocols (like RIP) send their entire routing tables to neighbors
and often converge slower. Hop count is a metric used by distance-vector protocols like RIP.
,Question 3: RIP has a maximum hop count of ____.
A) 255
B) 16
C) 15
D) 254
Correct Answer: C) 15
Rationale: RIP (Routing Information Protocol) uses hop count as its metric. A hop count of 15 is
the maximum usable value. Any destination that would require 16 or more hops to reach is
considered unreachable by RIP, effectively limiting its scalability in large networks.
Question 4: Which command enables RIP on a router?
A) router network RIP
B) router rip
C) router igrp
D) router ospf
Correct Answer: B) router rip
Rationale: In Cisco IOS, to enable the RIP routing protocol process, you enter global
configuration mode (configure terminal) and then use the command router rip. This places you
into router configuration mode for RIP.
Question 5: Which command will show the IP routing table of a router?
A) show ip route
B) show ip protocol
C) debug ip igrp events
D) show run
Correct Answer: A) show ip route
, Rationale: The show ip route command is used to display the contents of the IP routing table on
a Cisco router. This table lists all known network destinations, their associated metrics, and the
next-hop IP address or exit interface required to reach them.
Question 6: Nonroutable protocols are able to pass packets among multiple networks?
A) True
B) False
Correct Answer: B) False
Rationale: Non-routable protocols (e.g., NetBEUI) lack the necessary network layer addressing
information that routers require to forward packets between different IP networks or subnets.
They are designed for communication within a single broadcast domain or local area network
segment.
Question 7: IGRP can use which of the following as metrics? (Choose all that apply)
A) Hop count
B) Bandwidth
C) Delay
D) Split horizon
Correct Answers: A) Hop count, B) Bandwidth, AND C) Delay.
Rationale: IGRP (Interior Gateway Routing Protocol), a Cisco proprietary distance-vector
protocol, uses a composite metric that can include bandwidth, delay, reliability, and load. While
hop count is a primary metric for RIP, IGRP also factors in hop count as part of its composite
metric calculation for path determination. Split horizon is a loop prevention mechanism, not a
metric.
Question 8: Which of the following is a routed protocol? (Choose all that apply)
A) NetBEUI
B) TCP/IP
C) IPX/SPX
