Routing and Switching MCQs with Answers
Practice important Routing and Switching MCQs with answers and explanations.
Multiple Choice Questions
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
View Answer
A
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
View Answer
A
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
View Answer
A
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
View Answer
A
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
View Answer
B
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
View Answer
A
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
View Answer
A
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
View Answer
A
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
View Answer
A
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
View Answer
A