Computer Networks MCQs with Answers
Practice important Computer Networks MCQs with answers and explanations.
Chapter: 16
Q541:
What is used to compute routes in a WAN model?
A. database software
B. string matching algorithms
C. graph algorithms
D. search engine
Correct Answer:
D
Chapter: 16
Q542:
What is the purpose of default routes in a routing table?
A. To replace the main route
B. To eliminate source address
C. To route all packets randomly
D. To handle destinations not explicitly in the table
Correct Answer:
D
Chapter: 16
Q543:
A default route is used when ______.
A. the route is corrupted
B. no routing table exists
C. no specific entry exists for a destination
D. a computer is offline
Correct Answer:
C
Chapter: 16
Q544:
Default route improves routing table efficiency by ______.
A. reducing entries
B. increasing entries
C. slowing packets
D. creating loops
Correct Answer:
A
Chapter: 16
Q545:
Routing in a WAN becomes necessary because ______.
A. there are few computers
B. multiple hubs are needed
C. the network must support many computers and traffic
D. only one switch is used
Correct Answer:
C
Chapter: 16
Q546:
The routing table must be updated when ______.
A. switches are added
B. IP changes occur
C. network topology changes
D. all of the above
Correct Answer:
D
Chapter: 16
Q547:
Routing based on hierarchical addressing allows for ______.
A. more complex addressing
B. redundant paths
C. inefficient delivery
D. collapsed routing entries
Correct Answer:
A
Chapter: 16
Q548:
Which type of switch is directly connected to users?
A. Interior switch
B. Core switch
C. Exterior switch
D. Default switch
Correct Answer:
C
Chapter: 16
Q549:
A network that uses next hop forwarding only needs to know ______.
A. full path
B. destination MAC address
C. intermediate routers
D. address of next hop
Correct Answer:
D
Chapter: 16
Q550:
A switch in WAN forwards a packet based on ______.
A. source address
B. default route
C. switch ID
D. destination address
Correct Answer:
D
Chapter: 16
Q551:
The process of determining the next hop for a packet is known as ______.
A. routing
B. switching
C. forwarding
D. addressing
Correct Answer:
A
Chapter: 16
Q552:
If a routing table has the same next hop for multiple destinations, those entries can be ______.
A. duplicated
B. removed
C. collapsed
D. ignored
Correct Answer:
C
Chapter: 16
Q553:
________ is used when a packet’s destination is not found in the routing table.
A. static route
B. default route
C. external route
D. backup path
Correct Answer:
B
Chapter: 16
Q554:
Graph-based modeling of a WAN helps in ______.
A. detecting viruses
B. designing switches
C. computing optimal paths
D. calculating bandwidth
Correct Answer:
C
Chapter: 16
Q555:
If all traffic must traverse one connection, the routing table may contain ______.
A. loops
B. conflicts
C. redundant information
D. empty entries
Correct Answer:
C
Chapter: 16
Q556:
Routing is the process of ______.
A. storing data
B. determining switch topology
C. forwarding packets toward destination
D. encrypting packets
Correct Answer:
C
Chapter: 16
Q557:
WAN routing tables are necessary for ______.
A. protocol conversion
B. media transmission
C. packet forwarding
D. data deletion
Correct Answer:
C
Chapter: 17
Q558:
Which of the following is a method for building routing tables?
A. Manual entry
B. Link-state routing
C. Broadcast routing
D. None of these
Correct Answer:
A
Chapter: 17
Q559:
Routing tables can be built using ________.
A. Manual configuration
B. Software
C. Distance-vector methods
D. Both A and B
Correct Answer:
D
Chapter: 17
Q560:
Which type of routing is done only once at boot time?
A. Dynamic routing
B. Static routing
C. Link-state routing
D. Distance-vector routing
Correct Answer:
B