300-420 Real Exam Dumps Questions and answers 21-30

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Question No.21

Which consideration must be taken into account when using the DHCP relay feature in a Cisco SD-Access Architecture?

A.

DHCP-relay must be enabled on fabric edge nodes to provide the correct mapping of DHCP scope to the local anycast gateway.

B.

A DHCP server must be enabled on the border nodes to allow subnets to span multiple fabric edges.

C.

DHCP servers must support Cisco SD-Access extensions to correctly assign IPs to endpoints in an SDAccess fabric with anycast gateway.

D.

DHCP Option-82 must be enabled to map the circuit IP option to the access fabric node where the DHCP discover originated.

Correct Answer: A

Question No.22

Which function are fabric intermediate nodes responsible for in an SD-Access Architecture?

A.

mapping EIDs to RLOCs

B.

encapsulating user traffic in a VXLAN header including the SGT

C.

registering new endpoints in the HTDB

D.

transporting IP packets between edge nodes and border nodes

Correct Answer: D

Question No.23

What are two valid scaling techniques when an EIGRP network is designed that consists of more than 1000 routers? (Choose two.)

A.

Use structured hierarchical topology with route summarization

B.

Used sub-second timers

C.

Use the distribute-list command to filter routes

D.

Modify delay parameters on the links

E.

Implement multiple EIGRP autonomous systems

Correct Answer: AE

Question No.24

Which OSPF area blocks LSA Type 3, 4 and 5, but allows a default summary route?

A.

normal

B.

stub

C.

NSSA

D.

totally stubby

Correct Answer: D

Question No.25

Refer to the exhibit. Which solution decreases the EIGRP convergence time?

image

A.

Enable subsecond timers

B.

Increase the hold time value

C.

Increase the dead timer value

D.

Enable stub routing on the spokes

Correct Answer: D

Question No.26

A network engineer must connect two sites across a public network using a secure tunneling technology that supports multicast traffic. Which technology must be chosen?

A.

IPsec

B.

GRE

C.

PPTP

D.

GRE over IPsec

image

Correct Answer: D

Question No.27

An enterprise customer has these requirements:

image

image

end-to-end QoS for the business-critical applications and VoIP services based on CoS marking flexibility to offer services such as IPv6 and multicast without any reliance on the service

provider

image

support for full-mesh connectivity at Layer 2

Which WAN connectivity option meets these requirements?

A.

VPWS

B.

MPLS VPN

C.

DMVPN

D.

VPLS

Correct Answer: D

Question No.28

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 No.29

Which design consideration should be observed when EIGRP is configured on Data Center switches?

A.

Perform manual summarization on all Layer 3 interfaces to minimize the size of the routing table.

B.

Prevent unnecessary EIGRP neighborships from forming across switch virtual interfaces.

C.

Lower EIGRP hello and hold timers to their minimum settings to ensure rapid route reconvergence.

D.

Configure multiple EIGRP autonomous systems to segment Data Center services and applications.

Correct Answer: A

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Question No.30

DRAG DROP

Drag and drop the characteristics from the left onto the correct telemetry mode on the right.

image

Correct Answer:

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