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4A0-114 Sample Questions Answers

Questions 4

Which of the following pieces of information is NOT carried inside an EVPN IP-Prefix (type 5) route update associated with an EVPN VPLS?

Options:

A.

The MAC address of an attached host.

B.

The IP prefix of a subnet in the layer-3 domain that the VPLS belongs to.

C.

The VPLS's route-distinguisher and route-target values.

D.

The VPLS's service tunnel ID (MPLS label or VNI value).

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Questions 5

Given the network shown, which of the following is the correct BGP configuration for RR1?

Options:

A.

C:\Users\Admin\Desktop\Data\Odt data\Untitled.jpg

B.

C:\Users\Admin\Desktop\Data\Odt data\Untitled.jpg

C.

C:\Users\Admin\Desktop\Data\Odt data\Untitled.jpg

D.

C:\Users\Admin\Desktop\Data\Odt data\Untitled.jpg

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Questions 6

Which of the following statements about EVPN services is FALSE?

Options:

A.

The goal of an EVPN service is to provide layer-2 or layer-3 connectivity among two or more customer sites.

B.

A local layer-2 EVPN service is referred to as a backhaul VPLS.

C.

The same BGP address family can be used to populate the forwarding database of an EVPN VPLS and the route table of an EVPN VPRN.

D.

EVPN services support signaling for the use of MPLS and VXLAN tunnels.

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Questions 7

The configuration of an Nokia 7750 SR is given below. Router Rl has established BGP sessions with routers R2 and R3. Which of the following is TRUE?

Options:

A.

Router R1forms an iBGP session with router R2, and an eBGP session with router R3.

B.

Router R1forms iBGP sessions with routers R2 and R3.

C.

Router R1forms eBGP sessions with routers R2 and R3.

D.

The types of BGP sessions with routers R2 and R3 cannot be determined.

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Questions 8

In the diagram, the BGP import policy "north-and-south" is applied to router R5. Router R1 advertises the prefix 140.100.1.0/24 with a community set to "65200:1". Which of the following statements about how router R5 processes the received route update for prefix 140.100.1.0/24 is TRUE?

Options:

A.

The prefix is rejected.

B.

The prefix's local preference is set to 20.

C.

The prefix's community value is removed.

D.

The prefix's community value is modified to 65200:2.

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Questions 9

An export policy is applied on a router to advertise a prefix to its eBGP peers. By default, which of the following updates are made to the route attributes?

Options:

A.

LOCAL_PREFERENCE is set to 100.

B.

NEXT_HOP is set to the neighbor router's interface IP address.

C.

The local AS number is added to AS_PATH.

D.

COMMUNITY is set to the local AS number.

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Questions 10

Which of the following statements about VXLAN encapsulation is TRUE?

Options:

A.

It uses an MPLS label to identify the transport tunnel and a VXLAN Network ID (VNI) to identify the service tunnel.

B.

It uses a VXLAN Network ID (VNI) to identify the transport tunnel and an MPLS label to identify the service tunnel.

C.

It uses an additional IP header to identify the transport tunnel and a VXLAN Network ID (VNI) to identify the service tunnel.

D.

It uses VXLAN Network ID (VNI) to identify the transport tunnel and an additional IP header to identify the service tunnel.

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Questions 11

A BGP router receives the following routes. Which route is selected as best route?

1: 192.169.20.0/24 with local preference 100, MED 150, AS Path 65300 65200 from an eBGP neighbor

2: 192.169.20.0/24 with local preference 100, MED 100, AS Path 63200 from an iBGP neighbor

3: 192.169.20.0/24 with local preference 200, MED 150, AS Path 65400 63200 from an iBGP neighbor

4: 192.169.20.0/24 with local preference 200, MED 100, AS Path 63700 from an eBGP neighbor

Options:

A.

Route 1

B.

Route 2

C.

Route 3

D.

Route 4

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Questions 12

A router in AS 65100 receives three routes for 138.120.0.0/16. The first route has an AS Path of 65200 65400 65300 and a local preference of 150. The second route has an AS Path of 65200 65300 and a local preference of 100. The third route has an AS Path of 65600 65300 and a local preference of 100. Which route will appear in the RIB-out?

Options:

A.

Only the first route will appear in the RIB-Out.

B.

Only the second route will appear in the RIB-Out.

C.

Only the third route will appear in the RIB-Out.

D.

All routes will appear in the RIB-Out.

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Questions 13

Which of the following attributes can be used to prevent route advertisement loops in a network using router reflectors?

Options:

A.

MED

B.

ORIGIN

C.

CLUSTER_LIST

D.

AS_PATH

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Exam Code: 4A0-114
Exam Name: Nokia Border Gateway Protocol Fundamentals for Services
Last Update: Nov 14, 2024
Questions: 44
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