cisco 300-420 practice test

designing cisco enterprise networks (ensld)

Last exam update: Oct 15 ,2024
Page 1 out of 27. Viewing questions 1-10 out of 265

Question 1

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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Question 2

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.
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d

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Question 3


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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Answer:

c

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Question 4



Refer to the exhibit. A network administrator plans to announce the site subnets to the WAN using route summarization instead of announcing every subnet. What is the smallest summary route that should be used to encompass all subnets at the site?

  • A. 2001:DB8:ABCD:0003::/60
  • B. 2001:DB8:ABCD::/60
  • C. 2001:DB8:ABCD::/64
  • D. 2001:DB8::/32
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b

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Question 5

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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Answer:

c

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Question 6

Refer to the exhibit.

An engineer is designing a routing solution for a customer. The design must ensure that a failure of network 10.1.0.0/24, 10.1.2.0/24, 10.2.1.0/24, or 10.2.3.0/24 does not impact the core. It also requires fast convergence time during any link failover in the core or access networks.
Which solution must the engineer select?

  • A. Add aggregation layer between core and access networks.
  • B. Enable graceful restart on routers A and C.
  • C. Enable FRR for the connected networks of routers A and C.
  • D. Enable summarization on routers A and C.
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c

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Question 7

A companys 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
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d

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Question 8


Refer to the exhibit. An architect must design an IP addressing scheme for a multisite network connected via a WAN transit. The campus site must accommodate
12,000 devices, and the branch sites must accommodate 1,000 devices. Which address scheme optimizes network device resources, contains convergence events to the different blocks of the network, and ensures the network's future growth?

  • A. Campus: 10.0.0.0/18 Branch1: 10.0.192.0/21 Branch2: 10.0.200.0/21
  • B. Campus: 10.0.0.0/16 Branch1: 10.255.0.0/20 Branch2: 10.255.16.0/20
  • C. Campus: 10.0.0.0/10 Branch1: 10.64.0.0/10 Branch2: 10.128.0.0/10
  • D. Campus: 10.0.0.0/20 Branch1: 10.0.64.0/21 Branch2: 10.0.128.0/21
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a

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Question 9

Which feature of Cisco SD-WAN Secure Direct Cloud Access divides user traffic into different zones and VPNs or VRFs?

  • A. application-awareness routing
  • B. perimeter control
  • C. centralized data policy
  • D. secure segmentation
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d

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Question 10

An engineer is designing a PIM Anycast RP solution between two data centers. The design must ensure that RP1 in DC1 and RP2 in DC2 inform each other about specific sources that have joined locally. Which solution must the engineer choose?

  • A. Provision the RPs on the same IP subnet and extend the subnet at Layer 2 between data centers
  • B. Enable MSDP between RPs using separate unique loopback interfaces
  • C. Enable MSDP between RPs using the configured Anycast RP address
  • D. No action is required because PIM registers from the source will, by default, reach each RP
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b

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