Cisco CCNP Enterprise 300-420 Questions & Answers

• Question 301:

  

  Refer to the exhibit. A customer is planning to deploy a new branch in New York. The new office will not exceed 1024 users. Which subnet must be used to provide maximum number of host addresses while not providing more than necessary?

  A. 192.168.8.0/22

  B. 192.168.16.0/21

  C. 192.168.8.0/21

  D. 192.168.16.0/22

  Correct Answer: B

• Question 302:

  

  Refer to the exhibit. An architect is designing an ISIS network for a customer migrating from IPv4 to IPv6. The current network uses narrow metrics, and the IPv6 areas will increase to 10 within the next two years. Also, IPv6 traffic must not blackhole in IPv4 network during the migration. Which two solutions must the architect choose? (Choose two.)

  A. metric-style transition enabled on C1 and C2

  B. metric-style transition enabled on all routers

  C. multi-topology enabled under address-family ipv6 on E1 and E2

  D. multi-topology enabled under address-family ipv6 on C1 and C2

  E. metric-style transition enabled on E1 and E2

  Correct Answer: AD

• Question 303:

  

  Refer to the exhibit. Currently the network uses a single-homed solution for connecting to the internet. An engineer must design a more resilient WAN using the internet circuits at each site. The design must provide failover connectivity, support load-sharing of traffic, and QoS. Which solution must the engineer choose?

  A. IPsec tunnels

  B. Get VPN

  C. SD-WAN

  D. DMVPN

  Correct Answer: C

• Question 304:

  A company's branch location uses redundant routers and links for connectivity to the headquarters. Also, to use the entire available bandwidth, the branch uses a dynamic routing protocol. An architect must design a multicast streaming solution to avoid RPF check failures because of the current network design. Which deployment model must the architect choose?

  A. PIM-BSR

  B. BIDIR-PIM

  C. PIM-SM

  D. PIM-SSM

  Correct Answer: D

• Question 305:

  

  Refer to the exhibit. An architect is designing a network that requires route redistribution. The design must prevent route feedback and the creation of routing loops. The OSPF domain is using default metrics, and the IS-IS domain is using narrow metrics. Which solution must the architect select?

  A. Change the IS-IS administrative distance to 105

  B. Use route filtering with an ACL or prefix list

  C. Use route tagging with a route map

  D. Change the OSPF area to a nonbackbone stub area

  Correct Answer: C

• Question 306:

  

  Refer to the exhibit. A network engineer working for a private service provider with an employee ID: 1234:56:789 must design a BGP solution based on:

  All traffic originating from AS100 must pass through AS200 to reach the NTP and DHCP server

  When a link failure occurs between R3 and R4, traffic must follow the R2-R9 link to reach the NTP and DHCP server

  Which solution must the design include?

  A. Routers R3 and R10 advertise an IGP metric into BGP during redistribution in both directions

  B. Router R6 influences the paths of R9 and R11 to the DC with a higher AS-PATH value

  C. Routers R3 and R10 advertise a lower local preference for outgoing traffic and a higher AS-PATH value for incoming traffic

  D. Router R3 applies a local preference of 200 for R1, R2, R9, and R11 routers to reach the data center

  Correct Answer: B

• Question 307:

  

  Refer to the exhibit. An architect designs a BGP policy for a customer that requires load sharing of the links that connect with the upstream service provider. The customer has these requirements:

  The inbound traffic destined to network 10 1 1.0/24 must transit the R3-R1 link, and if the link fails, all inbound traffic must transit the R4-R2 link.

  The inbound traffic destined to network 10 1 2 0/24 must transit the R4-R2 link and if the link fails, all inbound traffic should transit the R3-R1 link.

  Which solution must the architect choose?

  A. • R1 must announce prefix 10.1.1.0/24 with the route map applied to the neighbor using set as-path prepend 64512 64512

  • R2 must announce prefix 10.1.2.0/24 with the route map applied to the neighbor using set as-path prepend 64512 64512

  B. • R1 must announce prefix 10.1.2.0/24 with the route map applied to the neighbor using set as-path prepend 64512 64512

  • R2 must announce prefix 10.1.1.0/24 with the route map applied to the neighbor using set as-path prepend 64512 64512

  C. • R1 must announce prefix 10.1.2.0/24 with a community attribute 64513:300 and prefix 10.1.1.0/24 with a community attribute 64513 200

  • R2 must announce prefix 10.1.2.0/24 with a community attribute 64513 200 and prefix 10.1.1.0/24 with a community attribute 64513:300

  D. • R1 must announce prefix 10.1.2.0/24 with a community attribute 64513:200 and prefix 10.1.1.0/24 with a community attribute 64513:300

  • R2 must announce prefix 10.1.2.0/24 with a community attribute 64513 300 and prefix 10.1.1.0/24 with a community attribute 64513:200

  Correct Answer: B

• Question 308:

  

  A. Option A

  B. Option B

  C. Option C

  D. Option D

  Correct Answer: D

• Question 309:

  

  Refer to the exhibit. An architect must design an OSPF solution for an enterprise customer. The design must meet these requirements:

  Limit the link flap impact to Area-1 and Area-2.

  Any link failure must have minimal impact on voice and video traffic

  Which two OSPF solutions must the architect include in the design? (Choose two.)

  A. Enable manual route summarization and configure all nonbackbone areas as stub networks

  B. Advertise default routes from the backbone to nonbackbone areas

  C. Reduce the frequency of DR and BDR elections

  D. Increase hello and hold timers

  E. Tune LSA and SPF throttling timers

  Correct Answer: AE

• Question 310:

  Which two LISP components are required in the Cisco SD-Access fabric control plane node? (Choose two.)

  A. Proxy ETR

  B. Engress Tunnel Router

  C. Map-Server

  D. Map-Resolver

  E. Ingres Tunnel Router

  Correct Answer: CD