Question 1

Company XYZ is designing the network for IPv6 security and they have these design requirements:

A switch or router must deny access to traffic from sources with addresses that are correct, but are

topologically incorrect

Devices must block Neighbor Discovery Protocol resolution for destination addresses that are not found

in the binding table.

Which two IPv4 security features are recommended for this company? (Choose two)

Options :

A : IPv6 DHCP Guard

B : IPv6 Source Guard

C : IPv6 Destination Guard

D : IPv6 Prefix Guard

E : IPv6 RA Guard

Answer: C,D

Question 2

Which SDN architecture component is used by the application layer to communicate with the control plane layer to provide instructions about the resources required by applications?

Options :

A : southbound APIs

B : northbound APIs

C : orchestration layer

D : SDN controller

Answer: B

Question 3

Refer to the exhibit.

An engineer is designing the network for a multihomed customer running in AS 111 does not have any other

Ass connected to it. Which technology is more comprehensive to use in the design to make sure that the AS is

not being used as a transit AS?

Options :

A :

Configure the AS-set attribute to allow only routes from AS 111 to be propagated to the neighbor ASs.

B :

Use the local preference attribute to configure your AS as a non-transit'' AS.

C :

include an AS path access list to send routes to the neighboring ASs that only have AS 111 in the AS

path field.

D :

Include a prefix list to only receive routes from neighboring ASs.

Answer: C

Question 4

Refer to the exhibit.

2022-02-16-07-33-15-42c15ec4c77129eb8687b8babff67c0c

You are designing a data center migration from one location to another, which requires all existing VLANs spanned to the new data center to maintain host IP addressing. Two temporary Gigabit Ethernet circuits are available to extend the VLANs at Layer 2 to the new location as trunk links between core switches in each location. Which solution provides maximum fault isolation between the two data centers to ensure that a Layer 2 issue in one data center does not affect the other during the migration?

Options :

A : Perform BPDU filtering over the trunk links

B : Run the dual links as multichassis EtherChannel trunk between core switches within each location

C : Enable root guard on the trunk ports at the legacy DC site

D : Perform HSRP filtering over the trunk links to maintain active HSRP gateways within each data center for each VLAN

Answer: A

Question 5

How many fully established neighbour relationships exist on an Ethernet with five routers running OSPF as

network type broadcast?

Options :

A : 5

B : 6

C : 7

D : 10

E : 20

Answer: C

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