Cisco CCNP Enterprise 300-420 Questions & Answers

• Question 91:

  An architect must develop a campus network solution that includes:

  1.

  logically segmented and isolated networks

  2.

  ability to communicate between network segments when required

  3.

  support for overlapping IP addresses

  4.

  widely available technologies to avoid purchasing specialized equipment

  Which solution must the architect select?

  A. VSS with IGP

  B. 802.1Q with HSRP

  C. vPC with HSRP

  D. VRF-Lite with OSPF

  Correct Answer: D

• Question 92:

  Refer to the exhibit.

  

  A customer is running HSRP on the core routers. Over time the company has grown and requires more network capacity. In the current environment, some of the downstream interfaces are almost fully utilized, but others are not. Which solution improves the situation?

  A. Make router R2 active for half of the VLANs.

  B. Add more interfaces to R1 and R2.

  C. Configure port channel toward downstream switches.

  D. Enable RSTP on the downstream switches.

  Correct Answer: A

• Question 93:

  Which topology within a network underlay eliminates the need for first hop redundancy protocols while improving fault tolerance, increasing resiliency, and simplifying the network?

  A. virtualized topology

  B. routed access topology

  C. Layer 2 topology

  D. logical fabric topology

  Correct Answer: B

• Question 94:

  An engineer must design a large Layer 2 domain that contains hundreds of switches and VLANs. The engineer's primary goals are to:

  1.

  Efficiently utilize the bandwidth of all links

  2.

  Avoid Layer 2 loops

  3.

  Cause minimal impact on switch CPU and memory Which technology should the engineer include in the design?

  A. MST

  B. Rapid PVST+

  C. RSTP

  D. PVST+

  Correct Answer: A

• Question 95:

  Refer to the exhibit. An architect reviews the low-level design of a company's enterprise network and advises optimizing the STP convergence time. Which functionality must be applied to Gi1/0/1-10 to follow the architect's recommendation?

  

  A. UplinkFast

  B. root guard

  C. BPDU guard

  D. PortFast

  Correct Answer: D

• Question 96:

  Refer to the exhibit. Where must an architect plan for route summarization for the topology?

  

  A. from the core toward the aggregation and the access toward the aggregation

  B. from the core toward the aggregation and the aggregation toward the core

  C. from the aggregation toward the access and the access toward the aggregation

  D. from the aggregation toward the core and the aggregation toward the access

  Correct Answer: D

• Question 97:

  Refer to the exhibit.

  

  The full EIGRP routing table is advertised throughout the network. Currently, users experience data loss when any one link in the network fails. An architect must optimize the network to reduce the impact when a link fails. Which solution should the architect include in the design?

  A. Run BFD on the inter links between EIGRP neighbors.

  B. Summarize the access layer networks from each access layer switch toward the aggregation layer.

  C. Reduce the default EIGRP hello interval and hold time.

  D. Summarize the access layer networks from the aggregation layer toward the core layer.

  Correct Answer: D

• Question 98:

  Refer to the exhibit.

  

  An engineer must design a WAN solution so that ISP-1 is always preferred over ISP-2. The path via ISP-2 is considered as a backup and must be used only when the path to ISP-1 is down. Which solution must the engineer choose?

  A. R1:

  -

  Routes advertised to ISP-1: 0x AS-path prepend

  -

  Routes received from ISP-1: HIGH local-preference

  -

  Routes advertised to R2: no action

  -

  Routes received from R2: community NO-EXPORT

  R2:

  -

  Routes advertised to ISP-2:5x AS-path prepend

  -

  Routes received from ISP-2: LOW local-preference

  -

  Routes advertised to R1: community NO-ADVERTISE

  -

  Routes received from R1: no action

  B. R1:

  -

  Routes advertised to ISP-1: 0x AS-path prepend

  -

  Routes received from ISP-1: HIGH local-preference

  -

  Routes advertised to R2: community NO-EXPORT

  -

  Routes received from R2: no action

  R2:

  -

  Routes advertised to ISP-2: 5x AS-path prepend

  -

  Routes received from ISP-2: LOW local-preference

  -

  Routes advertised to R1: no action

  -

  Routes received from R1: no action

  C. R1:

  -

  Routes advertised to ISP-1: 0x AS-path prepend

  -

  Routes received from ISP-1: LOW local-preference

  -

  Routes advertised to R2: community NO-ADVERTISE

  -

  Routes received from R2: no action

  R2:

  -

  Routes advertised to ISP-2: 5x AS-path prepend

  -

  Routes received from ISP-2: HIGH local-preference

  -

  Routes advertised to R1: no action

  -

  Routes received from R1: community NO-ADVERTISE

  D. R1:

  -

  Routes advertised to ISP-1: 5x AS-path prepend

  -

  Routes received from ISP-1: LOW local-preference

  -

  Routes advertised to R2: community NO-ADVERTISE

  -

  Routes received from R2: no action

  R2:

  -

  Routes advertised to ISP-2: 0x AS-path prepend

  -

  Routes received from ISP-2: HIGH local-preference

  -

  Routes advertised to R1: community NO-EXPORT

  -

  Routes received from R1: no action

  Correct Answer: B

• Question 99:

  Which component is part of the Cisco SD-Access overlay architecture?

  A. border node

  B. spine node

  C. leaf node

  D. Cisco DNA Center

  Correct Answer: A

• Question 100:

  Refer to the exhibit.

  

  A network engineer is designing a network for AS100. The design should ensure that all traffic enters AS100 via link 1 unless there is a network failure. In the event of a failure, link 2 should function as the path for incoming traffic. Which solution should the design include?

  A. Modify the next-hop attribute on R3.

  B. Use AS-Path prepending on R3.

  C. Modify the next-hop attribute on R4.

  D. Use AS-Path prepending on R4.

  Correct Answer: D