Nokia 4A0-108 Online Practice Questions and Exam Preparation

Nokia 4A0-108 Online Questions & Answers

• Question 91:

  Which of the following statements is false?

  A. For multicast delivery, the source will send a single copy of each packet regardless of the number of receivers
  B. For unicast delivery, the source will send a single copy of each packet regardless of the number of receivers
  C. For broadcast delivery, the source will send a single copy of each packet regardless of the number of receivers
  D. For anycast delivery, the source will send a single copy of each packet regardless of the number of receivers
  B. For unicast delivery, the source will send a single copy of each packet regardless of the number of receivers

• Question 92:

  Why should the anycast RP address be a non-system address of a router?

  A. Alcatel-Lucent 7750 SR configuration does not permit using the system address for an anycast RP address.
  B. The system address of a router must be a unique address within the domain, while the anycast address is configured on multiple routers within the domain.
  C. PIM will not be able to establish its signaling sessions if the anycast address uses the system address.
  D. Best practice is to use the system address as the anycast address for PIM.
  B. The system address of a router must be a unique address within the domain, while the anycast address is configured on multiple routers within the domain.

• Question 93:

  Click the exhibit.

  

  Which of the following BEST describes the multicast LAN?

  A. There are no active sources in the LAN.
  B. There is one active source for 239.1.1.1, and two active sources for 239.2.2.2.
  C. The devices on SAP 1/1/4 and SDP 1000:500 have issued joins for 239.1.1.1.
  D. There is a router on SDP 1000:500.
  D. There is a router on SDP 1000:500.

• Question 94:

  Click the exhibit.

  

  According to the output shown, which of the following statements is FALSE?

  A. The S-PMSI is instantiated by GRE tunnels.
  B. The I-PMSI group address is 232.10.10.0.
  C. 192.168.1.2 is the IP address of the multicast source.
  D. The customer is sending multicast traffic to group 239.1.1.1.
  B. The I-PMSI group address is 232.10.10.0.

• Question 95:

  What is the advantage of using the S-PMSI over the I-PMSI in Draft Rosen?

  A. The S-PMSI reduces control plane overhead because the I-PMSI is no longer needed.
  B. The S-PMSI only forwards customer multicast traffic to PEs that have interested receivers.
  C. The S-PMSI is required because it is the initial multicast distribution tree for the MVPN.
  D. The S-PMSI encapsulates customer multicast traffic in an MPLS tunnel, which is more efficient than the GRE tunnel used by the I-PMSI.
  B. The S-PMSI only forwards customer multicast traffic to PEs that have interested receivers.

• Question 96:

  Which of the following are characteristics of the one to many model of multicast data delivery? (Choose two)

  A. Receivers are generally unknown by the source
  B. Receivers are generally known by each other
  C. Well suited for applications in which the receivers provide feedback to each other and the source
  D. There is a single data flow for each group on the source segment
  E. All devices are potentially capable of generating multicast data
  F. Well suited for applications such as video on demand where each source sends a separate data stream to each of the many different receivers
  A. Receivers are generally unknown by the source
  D. There is a single data flow for each group on the source segment

• Question 97:

  What is the OUI field of the MAC address for IPv4 multicast addresses?

  A. 00-01-5e
  B. 00-01-5f
  C. 01-00-5e
  D. 01-00-5f
  C. 01-00-5e

• Question 98:

  An Alcatel-Lucent 7750 SR is unable to locate a multicast source address in the multicast forwarding table. However, the source address is available in the unicast forwarding table. Which statement best describes the default RPF check behavior of the 7750 SR?

  A. The RPF check will fail as PIM relies exclusively on the multicast forwarding table by default
  B. The RPF check will not fail, as by default PIM uses the multicast forwarding table first for RPF check, if not found in the multicast forwarding table then refers to unicast forwarding table
  C. The RPF check will not fail as PIM uses only the unicast forwarding table by default
  D. The RPF check will fail as the RPF check requires that the source address be present in both the unicast and multicast forwarding table
  E. Not enough information is provided to answer the question
  C. The RPF check will not fail as PIM uses only the unicast forwarding table by default

• Question 99:

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

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

• Question 100:

  How does the RP get the first multicast data packet from source?

  A. Via the Source Path Tree
  B. Via a Register Message which encapsulates the multicast traffic
  C. Via a Bootstrap Message which encapsulates the multicast traffic
  D. Via the Shared Path Tree
  B. Via a Register Message which encapsulates the multicast traffic