Computer Networks MCQs with Answers
Practice important Computer Networks MCQs with answers and explanations.
Chapter: 42
Q1301:
The link-status information in OSPF is propagated ________.
A. within an area
B. across all networks
C. only to external routers
D. to the Internet
Correct Answer:
A
Chapter: 42
Q1302:
OSPF reduces network overhead by summarizing routes before sending them to ________.
A. other areas
B. all nodes
C. external networks
D. internal hosts
Correct Answer:
B
Chapter: 42
Q1303:
OSPF is an IGP protocol designed to scale for ________ organizations.
A. large
B. small
C. medium
D. local
Correct Answer:
A
Chapter: 42
Q1304:
OSPF uses a ________ algorithm for routing.
A. link-state
B. distance-vector
C. path-vector
D. static
Correct Answer:
A
Chapter: 42
Q1305:
OSPF includes a ________-bit address mask for subnet support.
A. 32
B. 16
C. 24
D. 8
Correct Answer:
A
Chapter: 42
Q1306:
The OSPF graph represents routers as ________.
A. nodes
B. edges
C. links
D. packets
Correct Answer:
A
Chapter: 42
Q1307:
OSPF allows routers to authenticate each ________ exchanged.
A. message
B. packet
C. frame
D. header
Correct Answer:
A
Chapter: 42
Q1308:
The subdivision of autonomous systems in OSPF is called ________.
A. areas
B. subnets
C. domains
D. routes
Correct Answer:
A
Chapter: 42
Q1309:
OSPF optimizes multi-access networks by designating a ________ router.
A. single
B. multiple
C. primary
D. backup
Correct Answer:
A
Chapter: 42
Q1310:
RIP packets include a list of ________ and distances.
A. destinations
B. hosts
C. routers
D. areas
Correct Answer:
A
Chapter: 42
Q1311:
OSPF propagates link-status information ________ within areas.
A. periodically
B. once
C. daily
D. never
Correct Answer:
A
Chapter: 43
Q1312:
Internet multicast routing allows arbitrary computers to join multicast groups at ________.
A. any time
B. only at setup
C. time intervals
D. only once
Correct Answer:
A
Chapter: 43
Q1313:
In Internet multicast routing, a computer can send messages to a multicast group ________.
A. even if it is not a member
B. only if it is a member
C. only with permission
D. only once
Correct Answer:
A
Chapter: 43
Q1314:
IP multicast groups are anonymous because neither the sender nor receiver knows the ________.
A. number or identity of members
B. number of routers
C. network address
D. host IP address
Correct Answer:
A
Chapter: 43
Q1315:
Routers and hosts do not know which ________ will send datagrams to a multicast group.
A. applications
B. routers
C. members
D. subnets
Correct Answer:
A
Chapter: 43
Q1316:
The protocol used by a host to inform a nearby router about joining or leaving a multicast group is called ________.
A. IGMP
B. IPSec
C. TCP
D. UDP
Correct Answer:
A
Chapter: 43
Q1317:
In IGMP, the host informs the local router about the last application when it ________.
A. leaves the group
B. joins the group
C. starts transmitting
D. receives a message
Correct Answer:
A
Chapter: 43
Q1318:
Who is responsible for the propagation of multicast routing information?
A. routers
B. hosts
C. applications
D. switches
Correct Answer:
A
Chapter: 43
Q1319:
Flood-and-prune forwarding is ideal for multicast groups that are ________.
A. small and on contiguous LANs
B. large and geographically dispersed
C. large and mobile
D. small and global
Correct Answer:
A
Chapter: 43
Q1320:
Flood-and-prune protocols use a technique called ________ to avoid routing loops.
A. Reverse Path Broadcasting
B. Forward Path Routing
C. Shortest Path Bridging
D. Source Routing
Correct Answer:
A