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Cisco 300-420: Designing Cisco Enterprise Networks (ENSLD)

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Question 1

Which two BGP features will result in successful route exchanges between eBGP neighbors sharing the same AS number? (Choose two.)

A. advertise-best-external

B. bestpath as-path ignore

C. client-to-client reflection

D. as-override

E. allow-as-in

Correct Answer:DE

Question 2

Which QoS feature responds to network congestion by dropping lower priority packets?

A. CBWFQ

B. tail drop

C. WRED

D. strict priority

Correct Answer:C

Question 3

Which design consideration must be made when dual vEdge routers are deployed at a branch site?

A. Use BGP AS-path prepending to influence egress traffic and use MED to influence ingress traffic from the branch.

B. HSRP priorities must match the OMP routing policy to prefer one vEdge over the other.

C. Traffic must be symmetrical as it egresses the vEdges and returns from remote sites for DPI to function properly.

D. Configure BFD between vEdge routers to detect sub-second link failures.

Correct Answer:A

Question 4

An engineer is working with NETCONF and Cisco NX-OS based devices. The engineer needs a YANG model that supports a specific feature relevant only to Cisco NX-OS. Which model must the engineer choose?

A. Native

B. IEEE

C. OpenConfig

D. IETF

Correct Answer:D

Question 5

How do endpoints inside an SD-Access network reach resources outside the fabric?

A. a VRF fusion router is used to map resources in one VN to another VN

B. Fabric borders use VRFs to map VNs to VRFs

C. SD-Access transit links are used to transport encapsulated traffic from one fabric to another

D. A fabric edge is used to de-encapsulate VXLAN traffic to normal IP traffic then transported over the outside network

Correct Answer:D

Question 6

An organization is designing a detailed QoS plan that limits bandwidth to specific rates. Which two parameters are supported be the traffic policing feature? (Choose two.)

A. violating

B. marking

C. shaping

D. bursting

E. conforming

Correct Answer:BC

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