Routing and Switching MCQs with Answers
Practice important Routing and Switching MCQs with answers and explanations.
Multiple Choice Questions
Q1261: What happens when route summarization is enabled on an ABR?
- A: It injects a single Type 1 LSA into the backbone
- B: It injects a single Type 3 LSA into the backbone
- C: It propagates all LSAs without summarization
- D: It reduces the number of Type 5 LSAs
View Answer
B
Q1262: Summarization helps in increasing network stability by ______.
- A: Reducing LSA flooding
- B: Increasing router memory
- C: Decreasing bandwidth consumption
- D: Enhancing security
View Answer
A
Q1263: Which of the following routers is responsible for summarizing external routes?
- A: ABR
- B: ASBR
- C: Internal router
- D: Backbone router
View Answer
B
Q1264: To summarize multiple routes, which router in OSPF consolidates them into one advertisement?
- A: Core router
- B: Backbone router
- C: ABR
- D: Internal router
View Answer
C
Q1265: What is the effect of not performing route summarization in OSPF?
- A: Increased network security
- B: Decreased LSA flooding
- C: Unnecessary network traffic
- D: Enhanced network performance
View Answer
C
Q1266: In OSPF, interarea route summarization applies to ______.
- A: External routes
- B: Routes within each area
- C: Internal backbone routes
- D: All routes automatically
View Answer
B
Q1267: Which step is necessary for calculating a summary route in OSPF?
- A: Count the number of far right bits
- B: List the networks in hexadecimal format
- C: Count the number of far left matching bits
- D: Ignore the binary format of networks
View Answer
C
Q1268: How many far left matching bits are there when summarizing the networks 10.1.1.0/24 and 10.1.2.0/24?
- A: 16
- B: 20
- C: 22
- D: 24
View Answer
C
Q1269: In the example, what is the prefix for the summarized route when the first 22 bits match?
- A: /16
- B: /22
- C: /24
- D: /20
View Answer
B
Q1270: In OSPF, what is the metric of the summarized route based on?
- A: Highest cost of all subnets
- B: Average cost of all subnets
- C: Lowest cost of all subnets
- D: Manually configured cost
View Answer
C