Advanced Cisco CCNP Multiple Choice
Questions (MCQs) with Answers and
Explanations for Professional Certification
Exams
1. An enterprise network running OSPF experiences suboptimal routing due to excessive
SPF recalculations. Which feature should be implemented to reduce CPU utilization
while maintaining route convergence efficiency?
A. OSPF Virtual Links
B. OSPF Stub Areas
C. OSPF Incremental SPF
D. OSPF Authentication
Explanation: Incremental SPF reduces CPU overhead by recalculating only affected portions of
the SPF tree instead of rebuilding the entire topology after every change.
2. A network engineer configures EIGRP with unequal-cost load balancing. Which
command enables traffic distribution across feasible successor paths?
A. auto-summary
B. variance 1
C. maximum-paths 1
D. variance
Explanation: The variance command allows EIGRP to include routes with metrics within a
specified multiplier of the best route, enabling unequal-cost load balancing.
3. In BGP, which attribute is evaluated first during the best-path selection process?
A. MED
B. AS Path
C. Local Preference
, D. Weight
Explanation: Weight is a Cisco-proprietary attribute and has the highest priority in BGP path
selection, with larger values preferred.
4. Which technology allows multiple VLANs to share a single physical interface between
switches?
A. EtherChannel
B. PortFast
C. VTP
D. IEEE 802.1Q trunking
Explanation: IEEE 802.1Q encapsulates VLAN information, enabling a trunk link to carry
traffic for multiple VLANs.
5. A Layer 3 switch configured with HSRP must provide rapid failover. Which HSRP
feature allows a higher-priority router to regain active status after recovering?
A. Tracking
B. Authentication
C. Version 2
D. Preemption
Explanation: Preemption enables a router with higher priority to resume the active role once it
becomes operational again.
6. Which QoS mechanism prevents packet drops by shaping traffic before congestion
occurs?
A. Tail Drop
B. WRED
C. Policing
D. Traffic Shaping
Explanation: Traffic shaping buffers excess packets and releases them at a controlled rate,
avoiding abrupt packet loss.
Questions (MCQs) with Answers and
Explanations for Professional Certification
Exams
1. An enterprise network running OSPF experiences suboptimal routing due to excessive
SPF recalculations. Which feature should be implemented to reduce CPU utilization
while maintaining route convergence efficiency?
A. OSPF Virtual Links
B. OSPF Stub Areas
C. OSPF Incremental SPF
D. OSPF Authentication
Explanation: Incremental SPF reduces CPU overhead by recalculating only affected portions of
the SPF tree instead of rebuilding the entire topology after every change.
2. A network engineer configures EIGRP with unequal-cost load balancing. Which
command enables traffic distribution across feasible successor paths?
A. auto-summary
B. variance 1
C. maximum-paths 1
D. variance
Explanation: The variance command allows EIGRP to include routes with metrics within a
specified multiplier of the best route, enabling unequal-cost load balancing.
3. In BGP, which attribute is evaluated first during the best-path selection process?
A. MED
B. AS Path
C. Local Preference
, D. Weight
Explanation: Weight is a Cisco-proprietary attribute and has the highest priority in BGP path
selection, with larger values preferred.
4. Which technology allows multiple VLANs to share a single physical interface between
switches?
A. EtherChannel
B. PortFast
C. VTP
D. IEEE 802.1Q trunking
Explanation: IEEE 802.1Q encapsulates VLAN information, enabling a trunk link to carry
traffic for multiple VLANs.
5. A Layer 3 switch configured with HSRP must provide rapid failover. Which HSRP
feature allows a higher-priority router to regain active status after recovering?
A. Tracking
B. Authentication
C. Version 2
D. Preemption
Explanation: Preemption enables a router with higher priority to resume the active role once it
becomes operational again.
6. Which QoS mechanism prevents packet drops by shaping traffic before congestion
occurs?
A. Tail Drop
B. WRED
C. Policing
D. Traffic Shaping
Explanation: Traffic shaping buffers excess packets and releases them at a controlled rate,
avoiding abrupt packet loss.
