Nokia 4A0-108 Online Practice Questions and Exam Preparation

Nokia 4A0-108 Online Questions & Answers

• Question 181:

  Click the exhibit.

  

  Assume the I-PMSI group address is G. How many PIM (S,G) entries are on the P (RP) router?

  A. Only one, and S is PE1.
  B. Only one, and S is the MC source server's IP address.
  C. None, as RPonly maintains (*,G) state.
  D. Three, and S is PE1, PE2 and PE3 respectively.
  D. Three, and S is PE1, PE2 and PE3 respectively.

• Question 182:

  Which entity periodically sends IGMP Host Membership Queries?

  A. The router elected as Querier on a LAN.
  B. The first host to expire its local suppression timer.
  C. Only the multicast-enabled hosts on a LAN.
  D. All routers on a LAN.
  E. All multicast-enabled routers on a LAN.
  A. The router elected as Querier on a LAN.

• Question 183:

  Refer to the following exhibit.

  

  Assume all links have an equal metric in the IGP. Receiver 2 and Receiver 3 have joined the multicast group and the source is sending. Where will the Shared Path Tree have been created before switchover? (Choose two)

  A. Router G-E-C
  B. Router F-D-E-G
  C. Router F-D-E-C
  D. Router C-A
  E. Router F-D-B-A
  F. Router G-E-C-A
  G. No Shared Path Tree will have been created
  A. Router G-E-C
  C. Router F-D-E-C

• Question 184:

  Click the exhibit.

  

  According to the display in the exhibit, which of the following statements is TRUE?

  A. The S-PMSI is instantiated by MPLS tunnels.
  B. The S-PMSI group address range is 232.10.10.0/24.
  C. 192.168.1.2 is the system IP address of the source PE.
  D. The customer is sending multicast traffic to group 239.1.1.1.
  D. The customer is sending multicast traffic to group 239.1.1.1.

• Question 185:

  Which of the following about PIM messages for IPv6 multicast routing is FALSE?

  A. Hello and Join/Prune messages use All-PIM-Routers multicast address (FF02::D) as destination.
  B. Register messages use the RP's global unicast IPv6 address as destination.
  C. Hello and Join/prune messages use the outgoing interface's global unicast IPv6 address as source address.
  D. Register messages use the outgoing interface's global unicast IPv6 address as source address.
  C. Hello and Join/prune messages use the outgoing interface's global unicast IPv6 address as source address.

• Question 186:

  Click the exhibit.

  

  VPRN 100 is an MVPN with RSVP-TE P2MP LSP P-tunnels. How many PATH messages are signaled by PE1 for I-PMSI?

  B. 2
  C. 3
  D. It depends on the number of receivers
  B. 2

• Question 187:

  Which of the following protocols are used for IPv6 multicast?

  A. IGMPv3 and MBGP
  B. MLD and MBGP
  C. IGMPv3 and PIM SM
  D. MLD and PIM SM
  D. MLD and PIM SM

• Question 188:

  Four routers share a multi-access network. Router A is configured with a PIM DR priority of 10, Router B is configured with a PIM DR priority of 100, Router C and Router D are Alcatel-Lucent 7750 SRs set at the default value. Router D has the highest IP address. Which router is selected as the PIM DR on this multiaccess network?

  A. Router A
  B. Router B
  C. Router C
  D. Router D
  B. Router B

• Question 189:

  How often does a router issue IGMP Host Membership Reports for group 224.0.0.2?

  A. Never
  B. Every 30 seconds
  C. Every 60 seconds
  D. Every 120 seconds
  E. Every 260 seconds
  A. Never

• Question 190:

  What impact does an asymmetric IGP routing topology have on the PIM RPF check?

  A. The PIM RPF check may fail, since traffic from the source may arrive on one interface, while the IP route to the source may point to another interface on the PIM router.
  B. PIM does not work in an asymmetric topology, therefore there is no RPF check at all.
  C. There is no impact, since the Shared and Source Path Trees are built from the receiver to the source.
  D. There is not enough information provided here to answer the question.
  C. There is no impact, since the Shared and Source Path Trees are built from the receiver to the source.