Routing and Switching MCQs with Answers
Practice important Routing and Switching MCQs with answers and explanations.
Chapter: 86
Q961:
What does R1 propagate to R2 and R3 in the reference topology?
A. Default static route
B. Dynamic route
C. Administrative distance
D. Metric
Correct Answer:
A
Chapter: 86
Q962:
Fill in the blank: The routing table hierarchy in Cisco IOS was originally implemented with the __________ scheme.
A. Classful
B. Classless
C. Hierarchical
D. Flat
Correct Answer:
A
Chapter: 86
Q963:
What is identified by the 'Route source' in an IPv4 routing table entry?
A. How the route was learned
B. The IPv4 address of the next router
C. The destination address
D. The trustworthiness of the route source
Correct Answer:
A
Chapter: 86
Q964:
Fill in the blank: An IPv4 routing table entry’s 'Metric' identifies the value assigned to __________ the remote network.
A. Reach
B. Update
C. Remove
D. Identify
Correct Answer:
A
Chapter: 86
Q965:
What does the 'Outgoing interface' field in a routing table entry specify?
A. The exit interface to use for packet forwarding
B. The IPv4 address of the next router
C. The timestamp when the route was last heard
D. The trustworthiness of the route source
Correct Answer:
A
Chapter: 86
Q966:
Fill in the blank: A level 2 child route is a route that is a __________ of a classful network address.
A. Subnet
B. Supernet
C. Default
D. Network
Correct Answer:
A
Chapter: 86
Q967:
What is a level 1 route in an IPv4 routing table?
A. A route with a subnet mask equal to or less than the classful mask
B. A route with a subnet mask greater than the classful mask
C. A dynamic routing protocol source route
D. A route with a metric of 0
Correct Answer:
A
Chapter: 86
Q968:
Fill in the blank: The source of a level 1 route can be a directly connected network, __________, or a dynamic routing protocol.
A. Static route
B. Default route
C. Administrative distance
D. Metric
Correct Answer:
A
Chapter: 86
Q969:
What term is used to describe a network address with a mask less than the classful mask?
A. Supernet route
B. Network route
C. Default route
D. Level 2 child route
Correct Answer:
A
Chapter: 86
Q970:
Fill in the blank: The hierarchy in a routing table includes Level 1 routes, Level 1 parent routes, and __________ routes.
A. Level 2 child
B. Dynamic
C. Static
D. Default
Correct Answer:
A
Chapter: 87
Q971:
What does a router examine when a packet arrives on its interface?
A. IPv4 header and destination IPv4 address
B. Only the packet size
C. Only the source IP address
D. The type of packet
Correct Answer:
A
Chapter: 87
Q972:
If the best match is a level 1 ultimate route, what does the router do?
A. Uses that route to forward the packet
B. Proceeds to examine child routes
C. Drops the packet
D. Searches for a level 1 supernet route
Correct Answer:
A
Chapter: 87
Q973:
Fill in the blank: When there is a match with a level 2 child route, that subnet is used to __________ the packet.
A. Forward
B. Drop
C. Ignore
D. Queue
Correct Answer:
A
Chapter: 87
Q974:
What happens if there is no match with any level 2 child routes?
A. The router continues searching level 1 supernet routes
B. The router drops the packet
C. The router sends the packet to the default route
D. The router performs a recursive lookup
Correct Answer:
A
Chapter: 87
Q975:
Fill in the blank: A route with the greatest number of far left matching bits is considered the __________ route.
A. Best match
B. Longest match
C. Default route
D. Supernet route
Correct Answer:
B
Chapter: 87
Q976:
What does the router do if it finds a match with a level 1 parent route?
A. Examines child routes of the parent route
B. Drops the packet
C. Uses the parent route to forward the packet
D. Searches for a default route
Correct Answer:
A
Chapter: 87
Q977:
Fill in the blank: To determine the minimum number of matching bits, the router uses the __________ of the route.
A. Subnet mask
B. Destination address
C. Routing protocol
D. Next-hop IP address
Correct Answer:
A
Chapter: 87
Q978:
What is the final action if there is no match with any route in the routing table?
A. The router drops the packet
B. The router queues the packet for later processing
C. The router forwards the packet to the default route
D. The router performs an ARP request
Correct Answer:
A
Chapter: 87
Q979:
Fill in the blank: When comparing routes for the best match, a router prefers the route with the __________ match.
A. Longest
B. Shortest
C. Default
D. Supernet
Correct Answer:
A
Chapter: 87
Q980:
In the route lookup process, if there is a match with a level 1 supernet route, what does the router do?
A. Uses that route to forward the packet
B. Drops the packet
C. Searches for a level 2 child route
D. Continues searching for a level 1 ultimate route
Correct Answer:
A