Routing and Switching MCQs with Answers
Practice important Routing and Switching MCQs with answers and explanations.
Chapter: 107
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
Correct Answer:
B
Chapter: 107
Q1262:
Summarization helps in increasing network stability by ______.
A. Reducing LSA flooding
B. Increasing router memory
C. Decreasing bandwidth consumption
D. Enhancing security
Correct Answer:
A
Chapter: 107
Q1263:
Which of the following routers is responsible for summarizing external routes?
A. ABR
B. ASBR
C. Internal router
D. Backbone router
Correct Answer:
B
Chapter: 107
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
Correct Answer:
C
Chapter: 107
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
Correct Answer:
C
Chapter: 107
Q1266:
In OSPF, interarea route summarization applies to ______.
A. External routes
B. Routes within each area
C. Internal backbone routes
D. All routes automatically
Correct Answer:
B
Chapter: 107
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
Correct Answer:
C
Chapter: 107
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
Correct Answer:
C
Chapter: 107
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
Correct Answer:
B
Chapter: 107
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
Correct Answer:
C
Chapter: 107
Q1271:
External route summarization in OSPF is typically done by ______.
A. Backbone routers
B. ABRs
C. Internal routers
D. ASBRs
Correct Answer:
D
Chapter: 107
Q1272:
What is the result of using the "summary-address" command on an ASBR in OSPF?
A. It disables summarization
B. It enables auto-summarization
C. It summarizes external routes
D. It injects Type 1 LSAs
Correct Answer:
C
Chapter: 108
Q1273:
Which command is used to verify OSPF neighbor relationships?
A. show ip ospf
B. show ip ospf neighbor
C. show ip route ospf
D. show ip ospf database
Correct Answer:
B
Chapter: 108
Q1274:
Which of the following commands verifies the general OSPF status?
A. show ip protocols
B. show ip route ospf
C. show ip ospf neighbor
D. show ip ospf interface
Correct Answer:
A
Chapter: 108
Q1275:
What information is displayed by the command show ip ospf interface brief?
A. OSPF neighbors
B. OSPF database
C. OSPF-related information of interfaces
D. OSPF LSAs
Correct Answer:
C
Chapter: 108
Q1276:
Which command shows OSPF-related information in the routing table?
A. show ip ospf database
B. show ip protocols
C. show ip ospf neighbor
D. show ip route ospf
Correct Answer:
D
Chapter: 108
Q1277:
What can the show ip ospf database command verify?
A. OSPF neighbor states
B. OSPF LSDB contents
C. OSPF interface status
D. OSPF process ID
Correct Answer:
B
Chapter: 108
Q1278:
What parameter can be added to the show ip route command to display only OSPF-related information?
A. database
B. ospf
C. interface
D. neighbor
Correct Answer:
B
Chapter: 108
Q1279:
The output of which command reveals the routing protocols configured on a router?
A. show ip ospf database
B. show ip route ospf
C. show ip protocols
D. show ip ospf interface brief
Correct Answer:
C
Chapter: 108
Q1280:
The show ip protocols command provides information about the _______ configured on the router.
A. OSPF process ID
B. routing protocol specifics
C. OSPF neighbors
D. interface cost
Correct Answer:
B