Nokia 4A0-108 Online Practice Questions and Exam Preparation

Nokia 4A0-108 Online Questions & Answers

• Question 131:

  Which protocol is used to establish the I-PMSI in Draft Rosen?

  A. PIM DM
  B. PIM ASM
  C. PIM SSM
  D. Either PIM ASM or PIM SSM
  B. PIM ASM

• Question 132:

  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?

  A. The ingress PE sends a MP_REACH_NLRI message to activate the Intra-AS I-PMSI A-D route.
  B. The ingress PE sends a MPJJNREACH_NLRI message to withdraw the S-PMSI A-D route.
  C. The ingress PE stops sending the S-PMSI A-D route.
  D. The ingress PE stops sending the Source Active A-D route.
  B. The ingress PE sends a MPJJNREACH_NLRI message to withdraw the S-PMSI A-D route.

• Question 133:

  Refer to the following exhibit.

  

  Assume all links have an equal metric in the IGP. Receiver 2 has joined the multicast group and the source is sending. After the switchover of Router F, will a branch of the Shared Path Tree still exist between Router D and Router E?

  A. Yes. As it is maintained by the PIM hellos, it will exist until Router D or Router E is PIM disabled
  B. Yes, it will exist until the source stops sending multicast traffic
  C. Yes, it will exist until Router D prunes itself from the shared path tree
  D. No. Only Source Path Trees will remain
  C. Yes, it will exist until Router D prunes itself from the shared path tree

• Question 134:

  Click the exhibit.

  

  The network administrator of 2001 ;DB8:FEED::/64 wants to embed an RP for the network. The RP's address is 2001:DB8:FEED::7. Which of the following multicast address ranges would suit this purpose? (The exhibit shows the group-to-RP mapping for your reference only.)

  A. FF7x:730:2001:DBS:FEED::/96 (x is scope)
  B. FF7x:730:2001:DBS:FEED::/80 (x is scope)
  C. FF7x: 740:2001:DB8:FEED::/96 (x is scope)
  D. FF7x:740:2001:DB8:FEED::/80(x is scope)
  C. FF7x: 740:2001:DB8:FEED::/96 (x is scope)

• Question 135:

  Which of the following is a characteristic of a packet with a destination address in the Local Network Control Block address range?

  A. A packet with this address is always forwarded throughout the multicast routing domain but never forwarded outside the multicast routing domain
  B. A packet with this address can only be processed by a router
  C. A packet with this address is never forwarded beyond the local link unless the TTL is greater than 1
  D. A packet with this address is never forwarded beyond the local link regardless of the TTL
  D. A packet with this address is never forwarded beyond the local link regardless of the TTL

• Question 136:

  Which of the following Query messages are supported by IGMP version 3? (Choose three)

  A. Group Specific Query
  B. Group Membership Query
  C. Host Query
  D. Source Specific Query
  E. Group-and-Source Specific Query
  A. Group Specific Query
  B. Group Membership Query
  E. Group-and-Source Specific Query

• Question 137:

  What are the benefits of anycast RP? (Choose three)

  A. Provide RP redundancy in a PIM SM network
  B. Avoid the issue of shared-tree traffic concentration on a single RP in the network
  C. Used to support incongruent topologies
  D. Provide more optimal routing of the Shared Path Tree by allowing redundant RPs to be located closer to receivers
  E. Provide more optimal routing of the Source Path Tree by allowing the receiver to connect to the closest multicast source
  A. Provide RP redundancy in a PIM SM network
  B. Avoid the issue of shared-tree traffic concentration on a single RP in the network
  D. Provide more optimal routing of the Shared Path Tree by allowing redundant RPs to be located closer to receivers

• Question 138:

  Which of the following statements regarding mCAC is false?

  A. Multicast CAC allows a service provider to guarantee the availability of mandatory IPTV channels
  B. The aim of multicast CAC is to maintain the quality of existing IPTV channels by rejecting new channel joins when required
  C. Multicast CAC measures the current bandwidth utilization on the physical links and then decides whether to accept a new channel or not
  D. Multicast CAC policy can be applied to VPLS SAP and SDP with IGMP-snooping
  C. Multicast CAC measures the current bandwidth utilization on the physical links and then decides whether to accept a new channel or not

• Question 139:

  Which of the following statements are true? (Choose three)

  A. A multicast network may have only one source and one receiver segment
  B. A multicast network may have one source and multiple receiver segments
  C. A multicast network cannot have more than one source segments
  D. A multicast network may have multiple source and multiple receiver segments
  E. A multicast network cannot have more than one receiver segments
  A. A multicast network may have only one source and one receiver segment
  B. A multicast network may have one source and multiple receiver segments
  D. A multicast network may have multiple source and multiple receiver segments

• Question 140:

  Which of the following statements about MLD protocol is true?

  A. All MLD messages are sent with interface global IPv6 address
  B. MLDv3 is similar to IGMPv3 which can include/exclude the source ip address for specific groups
  C. MLD messages are a subset of ICMPv6 messages
  D. By default, MLD messages hop limit is set to 255
  C. MLD messages are a subset of ICMPv6 messages