Routing and Switching MCQs with Answers
Practice important Routing and Switching MCQs with answers and explanations.
Chapter: 103
Q1181:
What is the primary advantage of dividing a large OSPF area into smaller areas?
A. Faster packet transmission
B. Lower link-state update overhead
C. Reduced SPF calculation load
D. Improved LSDB synchronization
Correct Answer:
C
Chapter: 103
Q1182:
Fill in the blank: Multiarea OSPF uses a hierarchical network design, with the ______ area at the core.
A. distribution
B. non-backbone
C. backbone area
D. service area
Correct Answer:
C
Chapter: 103
Q1183:
What does the Area Border Router (ABR) do in a multiarea OSPF network?
A. Maintains identical LSDBs for all areas
B. Routes between different areas
C. Connects internal routers in an area
D. Establishes external connections to non-OSPF networks
Correct Answer:
B
Chapter: 103
Q1184:
What is the recommended maximum number of routers in an OSPF area according to Cisco guidelines?
A. 30 routers
B. 50 routers
C. 60 routers
D. 100 routers
Correct Answer:
B
Chapter: 103
Q1185:
Fill in the blank: OSPF routers use ______ to update and exchange link-state information.
A. LSAs
B. Hello packets
C. Routing tables
D. BGP advertisements
Correct Answer:
A
Chapter: 103
Q1186:
Which router is responsible for summarizing routes between areas in a multiarea OSPF network?
A. Internal router
B. ABR
C. Backbone router
D. ASBR
Correct Answer:
B
Chapter: 103
Q1187:
What is the primary role of the backbone area in multiarea OSPF?
A. Fast and efficient movement of IP packets
B. Summarization of routing tables
C. Synchronization of LSDBs
D. Neighbor discovery
Correct Answer:
A
Chapter: 103
Q1188:
Which router type connects an OSPF area to external autonomous systems?
A. Internal router
B. Backbone router
C. ABR
D. ASBR
Correct Answer:
D
Chapter: 103
Q1189:
Fill in the blank: OSPF route redistribution occurs at the ______.
A. ABR
B. Internal router
C. Backbone router
D. ASBR
Correct Answer:
D
Chapter: 103
Q1190:
What occurs when a topology change happens within a non-backbone OSPF area?
A. The entire network recalculates SPF
B. Only the affected area recalculates SPF
C. The LSAs are flooded across all areas
D. No recalculation is required
Correct Answer:
B
Chapter: 103
Q1191:
Fill in the blank: ______ routers maintain separate LSDBs for each OSPF area they are connected to.
A. Internal
B. ABR
C. ASBR
D. Backbone
Correct Answer:
B
Chapter: 103
Q1192:
What is a key advantage of multiarea OSPF in terms of routing table management?
A. Larger routing tables
B. Smaller routing tables
C. Increased number of routing updates
D. More detailed routing information
Correct Answer:
B
Chapter: 103
Q1193:
Which OSPF router type is responsible for route summarization between areas?
A. Internal router
B. Backbone router
C. ABR
D. ASBR
Correct Answer:
C
Chapter: 103
Q1194:
Fill in the blank: In OSPF, LSAs are stopped at the ______ to limit the scope of SPF calculations.
A. Backbone
B. ABR
C. Area boundary
D. ASBR
Correct Answer:
C
Chapter: 103
Q1195:
What is the main purpose of reducing the frequency of SPF calculations in OSPF?
A. Minimize CPU usage
B. Maximize bandwidth utilization
C. Increase neighbor discovery
D. Synchronize LSDBs more often
Correct Answer:
A
Chapter: 104
Q1196:
How many LSA types are specified by OSPF RFCs?
A. 5
B. 11
C. 7
D. 9
Correct Answer:
B
Chapter: 104
Q1197:
What is the primary function of LSA Type 1 in OSPF?
A. Advertises DR's information
B. Advertises directly connected OSPF-enabled links
C. Summarizes external routes
D. Describes external routes
Correct Answer:
B
Chapter: 104
Q1198:
Which OSPF LSA type exists only in multiaccess networks?
A. Type 1
B. Type 2
C. Type 3
D. Type 5
Correct Answer:
B
Chapter: 104
Q1199:
Which LSA type is used by ABRs to advertise networks from other areas?
A. Type 1
B. Type 2
C. Type 3
D. Type 5
Correct Answer:
C
Chapter: 104
Q1200:
What is the link-state ID in a Type 2 LSA based on?
A. Router ID of ABR
B. IP interface address of DR
C. Network number
D. Mask
Correct Answer:
B