Exams > Cisco > 300-420: Designing Cisco Enterprise Networks (ENSLD)
300-420: Designing Cisco Enterprise Networks (ENSLD)
Page 8 out of 20 pages Questions 71-80 out of 196 questions
Question#71

Which control-plane technology allows the same subnet to exist across multiple network locations?

  • A. LISP
  • B. VXLAN
  • C. FabricPath
  • D. ISE mobility services
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B

Question#72

An engineer is upgrading a company's main site to include a connection to a second ISP. The company will receive full Internet routing tables from both ISPs via
BGP. The engineer must ensure that the company does not become a transit autonomous system. Which solution should be included in this design?

  • A. Tag incoming routes from both ISPs with BGP community no-export.
  • B. Lower the MED for updates sent to the secondary ISP.
  • C. Use a route-map to prevent all prefixes from being advertised to either ISP.
  • D. Modify the local-preference for routes incoming from the primary ISP.
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A

Question#73

An architect is working on a design to connect a company's main site to several small to medium-sized remote branches. The solution must include redundant
WAN links, but the customer has a limited budget and wants the ability to increase the link speed easily in the future. QoS will run on the branch routers, so there is no need for consistent end-to-end QoS. Which solution does the architect propose?

  • A. dual-homed WAN MPLS with single-edge router
  • B. dual-homed Internet with a single-edge router running a site-to-site VPN topology
  • C. dual-homed WAN MPLS and Internet links via dual-edge routers
  • D. dual-homed Internet with dual-edge routers running a hub-and-spoke VPN topology
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B

Question#74

An engineer must design a solution to connect a customer to the Internet. The solution will include a Layer 3 circuit with a CIR of 50 Mbps from the service provider. The hand-off from the provider's switch to the customer's router is 1Gbps. Which solution should the engineer include to prevent potential issues with choppy voice traffic?

  • A. Reduce the bandwidth of the connection to the router.
  • B. Implement hierarchical QoS with a parent policing policy.
  • C. Implement hierarchical QoS with a parent shaping policy.
  • D. Add a bandwidth statement to the router interface.
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C

Question#75


Refer to the exhibit. Customers report low video quality and delays when having point-to-point telepresence video calls between the two locations. An architect must optimize a design so that traffic follows the same path for egress and ingress traffic flows. Which technique optimizes the design?

  • A. Configure route leaking on the router in area 2.
  • B. Configure route leaking on the router in area 1.
  • C. Configure the high metric on the router in area 4.
  • D. Configure route filter on the router in area 4.
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C

Question#76


Refer to the exhibit. An engineer is designing a BGP solution for a client that peers with ISP1 for full Internet connectivity and with ISP2 for direct exchange of routes for several third parties. Which action, when implemented on the edge routers, enables the client network to reach the Internet through ISP1?

  • A. Run an eBGP session within different VRFs for each ISP.
  • B. Advertise a default route for downstream routers within the client network.
  • C. Apply the AS-path prepend feature for ISP2.
  • D. Apply route filtering such that the client advertises only routes originated from its own AS.
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B

Question#77

An engineer must propose a solution for a campus network that includes the capability to create multiple Layer 3 virtual networks. Each network must have its own addressing structure and routing table for data forwarding. The solution must be scalable to support hundreds of virtual networks and allow simple configuration and management with minimal administrative overhead. Which solution does the engineer recommend?

  • A. hop-by-hop EVN
  • B. multihop MPLS core
  • C. multihop IPsec tunneling
  • D. hop-by-hop VRF-Lite
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A

Question#78

An engineer must design a VPN solution for a company that has multiple branches connecting to a main office. What are two advantages of using DMVPN instead of IPsec tunnels to accomplish this task? (Choose two.)

  • A. support for AES 256-bit encryption
  • B. greater scalability
  • C. support for anycast gateway
  • D. lower traffic overhead
  • E. dynamic spoke-to-spoke tunnels
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BE

Question#79

How is Internet access provided to a WAN Edge router that is connected to a MPLS transport link?

  • A. OMP advertises a default route from a WAN Edge router that is connected to the MPLS and Internet transport networks.
  • B. Internet access must be provided at the WAN Edge router through either a 4G/5G link or local Internet circuit.
  • C. An extranet must be provided in the MPLS transport network to allow private traffic to reach the public Internet.
  • D. TLOC extensions are used to route traffic to a WAN Edge router that is connected to the Internet transport network.
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D

Question#80

DRAG DROP -
Drag and drop the elements from the left onto the functions they perform in the Cisco SD-WAN architecture on the right.
Select and Place:

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