Cisco 300-420 Online Practice Questions and Exam Preparation

Cisco 300-420 Online Questions & Answers

• Question 161:

  DRAG DROP

  Drag and drop the types of WAN connectivity from the left onto the connectivity use cases on the right.

  Select and Place:

  

  

• Question 162:

  Refer to the exhibit.

  

  Which solution decreases the EIGRP convergence time?

  A. Enable subsecond timers
  B. Increase the hold time value
  C. Increase the dead timer value
  D. Enable stub routing on the spokes
  D. Enable stub routing on the spokes

• Question 163:

  What are the three foundational elements required for the new operational paradigm? (Choose three.)

  A. application QoS
  B. policy-based automated provisioning of network
  C. multiple technologies at multiple OSI layers
  D. assurance
  E. centralization
  F. fabric
  B. policy-based automated provisioning of network
  D. assurance
  F. fabric

• Question 164:

  Which information update is carried by OMP and enables the Cisco SD-WAN to build a secure overlay fabric on top of any public or private transport without regard for the actual link IP?

  A. TLOC
  B. RLOC
  C. LISP PITR
  D. DTLS
  A. TLOC

• Question 165:

  An architect is designing a network solution for a customer. The network is IPv6-only with 1000 hosts. The design must provide external access to up to 10 concurrent IPv6 hosts to allow communication with legacy IPv4 devices on an adjacent network. The customer set aside 10 IPv4 addresses to allow for one-to-one communication between hosts.

  Which solution must the architect select?

  A. static NAT-PT
  B. dynamic NPTv6
  C. stateful NAT64
  D. dynamic NAT-PT
  C. stateful NAT64

• Question 166:

  A network engineer must segregate three interconnected campus networks using IS-IS routing. A two-layer hierarchy must be used to support large routing domains and to avoid more specific routes from each campus network being advertised to other campus network routers automatically. Which two actions does the engineer take to accomplish this segregation? (Choose two.)

  A. Designate two IS-IS routers as BDR routers at the edge of each campus, and configure one BDR for all Level 1 routers and one BDR for all Level 2 routers.
  B. Designate two IS-IS routers from each campus to act as Level 1/Level 2 backbone routers at the edge of each campus network.
  C. Assign the same IS-IS NET value for each campus, and configure internal campus routers with Level 1/ Level 2 routing.
  D. Utilize different MTU values for each campus network segment. Level 2 backbone routers must utilize a larger MTU size of 9216.
  E. Assign a unique IS-IS NET value for each campus, and configure internal campus routers with Level 1 routing.
  B. Designate two IS-IS routers from each campus to act as Level 1/Level 2 backbone routers at the edge of each campus network.
  E. Assign a unique IS-IS NET value for each campus, and configure internal campus routers with Level 1 routing.

• Question 167:

  

  Refer to the exhibit. An architect must ensure a convergence time of 200 ms or less during a link failure within area 0. In addition, the solution must not impact the overall performance of the network. Which solution must the architect select?

  A. UDLD
  B. BFD
  C. fast hellos
  D. carrier delay
  B. BFD

• Question 168:

  Which control plane protocol is responsible for EID-to-RLOC mapping concerning SD-Access Architecture?

  A. VXLAN
  B. LISP
  C. GBAC
  D. CEF
  B. LISP

• Question 169:

  An enterprise customer has these requirements:

  1. end-to-end QoS for the business-critical applications and VoIP services based on CoS marking.

  2. flexibility to offer services such as IPv6 and multicast without any reliance on the service provider.

  3. support for full-mesh connectivity at Layer 2. Which WAN connectivity option meets these requirements?

  A. VPWS
  B. MPLS VPN
  C. DMVPN
  D. VPLS
  D. VPLS

• Question 170:

  Which two statements describes Cisco SD-Access? (Choose two.)

  A. software-defined segmentation and policy enforcement based on user identity and group membership
  B. an overlay for the wired infrastructure in which traffic is tunneled via a GRE tunnel to a mobility controller for policy and application visibility
  C. an automated encryption/decryption engine for highly secured transport requirements
  D. programmable overlays enabling network virtualization across the campus
  E. a collection of tools and applications that are a combination of loose and tight coupling
  A. software-defined segmentation and policy enforcement based on user identity and group membership
  D. programmable overlays enabling network virtualization across the campus