Nokia 4A0-108 Online Practice Questions and Exam Preparation

Nokia 4A0-108 Online Questions & Answers

• Question 61:

  Which of the following actions is not performed by a bud node along a RSVP-TE P2MP LSP?

  A. Label push operation
  B. Label swap operation
  C. Packet replication
  D. Label pop operation
  A. Label push operation

• Question 62:

  Click the exhibit.

  

  What happens when the displayed router receives an IGMPv3 exclude none report for group 232.1.1.1?

  A. The router propagates a (:,:, 232.1.1.1) join towards RP if it exists.
  B. The router sends a PIM (S, G) join toward both sources: 192.168.1.1 and 192.168.1.2.
  C. The IGMPv3 report is dropped and a misconfiguration message is generated in log 99.
  D. The router sends a PIM (192.168.1.1, 232.1.1.1) join toward the source.
  D. The router sends a PIM (192.168.1.1, 232.1.1.1) join toward the source.

• Question 63:

  After the switchover from Shared Path Tree to Source Path Tree, does a branch of the Shared Path Tree still exist between the diverging router (router where the Shared and Source Path Tree diverge) and the RP?

  A. Yes, it exists until the source stops sending multicast traffic.
  B. Yes, it exists until there is no receiver beyond the diverging router.
  C. No. After switchover, only the Source Path Tree remains.
  D. No. After switchover, only the Shared Path Tree remains between the source and RP.
  B. Yes, it exists until there is no receiver beyond the diverging router.

• Question 64:

  Click the exhibit.

  

  What is the embedded RP for group FF7E:130:2000:2001:2002:2003::1000? (Please note: the exhibit shows the group-to-RP mapping for your reference only.)

  A. 2000:2001:2002:2003: :1
  B. 2000:2001:2002:2003::3
  C. 2000:2001:2002: :1
  D. 2000:2001:2002::3
  C. 2000:2001:2002: :1

• Question 65:

  Does the interface whose address is used as the BSR candidate require PIM enablement?

  A. Yes, that interface must be PIM-enabled.
  B. No, it is unnecessary to enable PIM on that interface.
  C. If it is a physical interface, that interface should be PIM-enabled, otherwise it is unnecessary.
  D. If the RPF check is using the multicast routing table, that interface should be PIM-enabled, otherwise it is unnecessary.
  A. Yes, that interface must be PIM-enabled.

• Question 66:

  Refer to the following exhibit.

  

  Assuming all links have an equal metric in the IGP, where will the Source Path Tree have been created if Receiver 2 and Receiver 3 have joined the multicast group but the source is not sending?

  A. Router G-E-C-A
  B. Router F-D-B-A
  C. Router C-A
  D. There won't be a Source Path Tree
  D. There won't be a Source Path Tree

• Question 67:

  Click the exhibit.

  

  The switch is not IGMP-snooping/proxy capable. What happens when Host 2 issues an IGMP report to join a group?

  A. Both Router A and Router B get this IGMP report; Router B propagates a PIM join toward the core network.
  B. Both Router A and Router B get this IGMP report, and both propagate a PIM join toward the core network.
  C. Only Router A gets this IGMP report and propagates a PIM join toward the core network.
  D. Only Router A gets this IGMP report, but no further action is taken, as Router A is not the PIM DR.
  A. Both Router A and Router B get this IGMP report; Router B propagates a PIM join toward the core network.

• Question 68:

  Select the statements that relate to the Shared Path Tree. (Choose three)

  A. The RP is the root of the tree
  B. The multicast source is the root of the tree
  C. It is represented by (*, G) entries
  D. It is represented by (S, G) entries
  E. The path between receiver and source is always the shortest path
  F. It is always created as a result of switchover
  G. It is the initial forwarding path created
  A. The RP is the root of the tree
  C. It is represented by (*, G) entries
  G. It is the initial forwarding path created

• Question 69:

  When forwarding a multicast frame, normal behavior for a LAN switch (with IGMP snooping enabled) is to forward the frame as if it were:

  A. A unicast frame with a known destination in the forwarding table.
  B. A unicast frame with an unknown destination in the forwarding table.
  C. A unicast frame with a known source in the forwarding table,
  D. A unicast frame with an unknown source in the forwarding table.
  A. A unicast frame with a known destination in the forwarding table.

• Question 70:

  Refer to the following exhibit.

  

  The interfaces' IGP metric is as shown and PIM is using unicast table for RPF-check. What will happen when Router B receives the register message on its interface facing Router A?

  A. Discard the register message as RPF-check fails
  B. Forward the register message to Router D (RP) according to its routing table
  C. Forward the register message out of all the interfaces in its (", 239.1.1.1) entry's outgoing interface list
  D. Forward the register message out of all the interfaces in its (192.168.1.1, 239.1.1.1) entry's outgoing interface list
  B. Forward the register message to Router D (RP) according to its routing table