Routing and Switching MCQs with Answers
Practice important Routing and Switching MCQs with answers and explanations.
Chapter: 84
Q941:
What is included in a Link-State Packet (LSP)?
A. Link-state information about directly connected links
B. IP address and subnet mask
C. Static routes and their metrics
D. Routing table entries
Correct Answer:
A
Chapter: 84
Q942:
Fill in the blank: After establishing adjacencies, a router builds its __________ that contains link-state information.
A. Link-State Packet (LSP)
B. Routing Table
C. Topology Map
D. Neighbor List
Correct Answer:
A
Chapter: 84
Q943:
What is the purpose of flooding the LSP to all neighbors?
A. To ensure all routers in the routing area have the most current link-state information
B. To update routing tables with new routes
C. To configure static routes
D. To establish adjacency with neighbors
Correct Answer:
A
Chapter: 84
Q944:
Fill in the blank: Each router uses the __________ to construct a complete map of the topology.
A. Link-State Database
B. Routing Table
C. SPF Tree
D. Neighbor Database
Correct Answer:
A
Chapter: 84
Q945:
What information is included in an LSP besides link-state information?
A. Sequence numbers and aging information
B. Static routes
C. IP addresses
D. Routing metrics
Correct Answer:
A
Chapter: 84
Q946:
Fill in the blank: The final step in the link-state routing process involves generating the __________ from the SPF tree.
A. Routing Table
B. Link-State Packet (LSP)
C. Link-State Database
D. Topology Map
Correct Answer:
A
Chapter: 84
Q947:
When a router receives an LSP from a neighboring router, what does it do next?
A. It floods the LSP to all other interfaces except the one it was received on
B. It immediately updates its routing table
C. It discards the LSP if it’s a duplicate
D. It sends a confirmation to the neighboring router
Correct Answer:
A
Chapter: 84
Q948:
Fill in the blank: The SPF algorithm is used to build the __________ tree based on the link-state database.
A. SPF
B. Routing
C. Link-State
D. Topology
Correct Answer:
A
Chapter: 84
Q949:
What happens to LSPs if a router detects that it has already received an LSP with newer information?
A. The router updates its database with the new information
B. The router discards the LSP
C. The router requests a new LSP from the neighbor
D. The router sends a confirmation to the neighbor
Correct Answer:
A
Chapter: 84
Q950:
Fill in the blank: Each router builds its LSP containing the state of each __________ link.
A. Directly connected
B. Indirectly connected
C. Neighboring
D. Static
Correct Answer:
A
Chapter: 85
Q951:
What does a link-state routing protocol build to represent the network topology?
A. SPF Tree
B. Routing Table
C. Link-State Packet (LSP)
D. Distance Vector Table
Correct Answer:
A
Chapter: 85
Q952:
Fill in the blank: Link-state routing protocols use the __________ algorithm to determine the shortest path.
A. SPF
B. Bellman-Ford
C. Dijkstra
D. Distance Vector
Correct Answer:
A
Chapter: 85
Q953:
What is one of the main advantages of link-state routing protocols over distance vector protocols?
A. Fast Convergence
B. Simple Configuration
C. Lower Memory Requirements
D. Periodic Updates
Correct Answer:
A
Chapter: 85
Q954:
Fill in the blank: Link-state routing protocols use a __________ design to allow better route aggregation.
A. Hierarchical
B. Flat
C. Linear
D. Distributed
Correct Answer:
A
Chapter: 85
Q955:
What happens when an LSP is received by a router in a link-state routing protocol?
A. It is flooded out to all interfaces except the one it was received on
B. It updates the routing table directly
C. It is discarded if it's a duplicate
D. It sends a confirmation to the neighbor
Correct Answer:
A
Chapter: 85
Q956:
Fill in the blank: Link-state routing protocols only send LSPs when there is a __________ in the topology.
A. Change
B. Periodic Update
C. Configuration
D. Neighbor Down
Correct Answer:
A
Chapter: 85
Q957:
What is a disadvantage of link-state routing protocols related to bandwidth?
A. Flooding of LSPs can affect bandwidth
B. Lower bandwidth usage
C. No impact on bandwidth
D. Minimal bandwidth usage
Correct Answer:
A
Chapter: 85
Q958:
Fill in the blank: The __________ is used by link-state routing protocols to keep the most current information in its database.
A. Link-State Packet (LSP)
B. Routing Table
C. SPF Tree
D. Distance Vector Table
Correct Answer:
A
Chapter: 85
Q959:
What strategy is used to minimize the impact on memory, CPU, and bandwidth in modern link-state routing protocols?
A. Use and configuration of multiple areas
B. Regularly update routing tables
C. Use of distance vector algorithms
D. Simplify the SPF algorithm
Correct Answer:
A
Chapter: 85
Q960:
Fill in the blank: Only __________ routers in the affected area receive LSPs and run the SPF algorithm during topology changes.
A. Routers
B. All routers
C. Neighboring routers
D. Core routers
Correct Answer:
A