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4A0-108 Online Practice Questions

Nokia Multicast Protocols

247 questions available · Page 1 of 25

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Question 1 Single choice

Refer to the exhibit.

Which router is this screen capture taken from?

  1. A

    Any router in the PIM multicast domain

  2. B

    Only from the Candidate-RP

  3. C

    Only from the Candidate-BSR

  4. D

    Only from the elected BSR

Show answer and explanation

Correct answer: D

Question 2 Single choice

Under what circumstances will the multicast data flow remain on the Shared Path Tree in a PIM ASM network?

  1. A

    When multicast traffic is below a configured threshold

  2. B

    It will always remain on the Shared Path Tree

  3. C

    It will never remain on the Shared Path Tree

  4. D

    When PIM Dense Mode is in use

Show answer and explanation

Correct answer: A

Question 3 Single choice

Which of the following statements about MLD snooping is false?

  1. A

    MLD snooping enables switches to forward multicast data to specific hosts that want to receive the data

  2. B

    MLD snooping can co-exist with IGMP snooping in the same VPLS service

  3. C

    Once MLD snooping is enabled, the switch can snoop both MLDv1 and MLDv2 messages

  4. D

    MLD snooping snoops MLD report and done messages, not query messages

Show answer and explanation

Correct answer: D

Question 4 Single choice

Refer to the following configuration exhibit.

How many interfaces have receivers joining group 239.1.1.1?

  1. A

    1

  2. B

    2

  3. C

    3

  4. D

    There is insufficient information to answer

Show answer and explanation

Correct answer: D

Question 5 Single choice

What is the position of the router shown in the exhibit?

  1. A

    The first hop router from the source

  2. B

    The RP

  3. C

    One router upstream on the Shared Path Tree from the diverging router

  4. D

    The last hop router from the source

Show answer and explanation

Correct answer: A

Question 6 Multiple choice

What issues have to be resolved to support the deployment of SSM? (Choose two)

  1. A

    Allowing the source to select the multicast group address

  2. B

    Creating standards for Directory Services

  3. C

    Allowing the receiver to specify the source address

  4. D

    Modifying the IGMP messaging format to include the multicast source address

  5. E

    Modifying the PIM messaging format to include the multicast source address

Show answer and explanation

Correct answers: C, D

Question 7 Single choice

How does a Candidate-RP send its information to the BSR?

  1. A

    Using PIM address 224.0.0.13

  2. B

    It is unicast to all the BSR candidates

  3. C

    It is flooded by all PIM routers

  4. D

    It is unicast to the elected BSR

Show answer and explanation

Correct answer: D

Question 8 Single choice

In an MVPN that uses BGP Auto Discovery for both I-PMSI and S-PMSI, what action is taken by the ingress when customer multicast traffic drops below the threshold?

  1. A

    The ingress PE sends a MP_REACH_NLRI message to activate the Intra-AS I-PMSI A-D route.

  2. B

    The ingress PE sends a MPJJNREACH_NLRI message to withdraw the S-PMSI A-D route.

  3. C

    The ingress PE stops sending the S-PMSI A-D route.

  4. D

    The ingress PE stops sending the Source Active A-D route.

Show answer and explanation

Correct answer: B

Question 9 Single choice

Which MAC address does the IPv4 multicast address 239.33.42.107 translate to?

  1. A

    01-00-5e-al-2a-6b

  2. B

    01-00-5e-21-2a-6b

  3. C

    01-00-5e-21-2c-6c

  4. D

    00-01-5e-al-2a-6b

  5. E

    00-01-5e-21-2a-6b

  6. F

    00-01-5e-al-2a-6b

Show answer and explanation

Correct answer: B

Question 10 Single choice

Which entity periodically sends IGMP Host Membership Queries?

  1. A

    The router elected as Querier on a LAN.

  2. B

    The first host to expire its local suppression timer.

  3. C

    Only the multicast-enabled hosts on a LAN.

  4. D

    All routers on a LAN.

  5. E

    All multicast-enabled routers on a LAN.

Show answer and explanation

Correct answer: A