4A0-108 Nokia Multicast Protocols Dumps

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Sample Question 4

A BSR candidate message is seen with a higher priority than the existing BSR. Which of the following describes the action that occurs?

A. The higher priority router becomes the BSR only after the existing BSR fails. 
B. The higher priority router becomes the BSR after the bootstrap message wait interval. 
C. The higher priority router becomes the BSR immediately. 
D. There is a BSR configuration parameter that determines whether or not there is a BSR election in this case. 


Sample Question 5

Which of the following is NOT a function of Intra-AS I-PMSI A-D route?

A. To advertise the P-tunnel type to be used for the I-PMSI.
B. To advertise the group address for the I-PMSI.
C. To provide MVPN auto-discovery and binding within a single AS domain.
D. To advertise the customer multicast group address.


Sample Question 6

In the Alcatel-Lucent SROS, which BGP address family is configured to support MCASTVPN NLRI?

A. vpn-ipv6
B. vpn-ipv4
C. mvpn-ipv6 
D. mvpn-ipv4


Sample Question 7

Which of the following about Draft Rosen MVPN is TRUE?

A. In Draft Rosen MVPN, each CE maintains a PIM adjacency to its remote CE routers.
B. In Draft Rosen MVPN, customer multicast group addresses in different VRFs cannotoverlap.
C. Draft Rosen MVPN encapsulates customer multicast traffic in GRE tunnels.
D. In Draft Rosen MVPN, PE routers exchange customer multicast routing information byMP-BGP.


Sample Question 8

Which of the following regarding VRF Route Import extended community is TRUE?

A. It is used to support UMH selection in Inter-AS MVPN.
B. It is a new extended community added only to MVPN multicast routes.
C. It contains Global Administrator and Local Administrator fields.
D. It contains the AS number of the source PE.


Sample Question 9

Which of the following regarding the use of RSVP-TE P2MP LSP as MVPN I-PMSI isTRUE?

A. If RSVP-TE P2MP LSP is used as I-PMSI, either mLDP or RSVP-TE P2MP LSP can beused as S-PMSI.
B. The signaling protocol used for S-PMSI is independent of that used for I-PMSI.
C. If the signaling protocol used for I-PMSI is RSVP-TE, BGP must be used for signalingcustomer multicast information. 
D. The protocol used for signaling customer multicast information is independent of thatused for the I-PMSI.


Sample Question 10

What is the destination address of the MLDv2 report message?

A. FF02::1
B. FF02::2
C. FF02::16
D. The specific multicast group address that the host is interested in.


Sample Question 11

Four routers in a domain are configured as BSR candidates. Router A is configured with aBSR priority of 10; Router B is configured with a BSR priority of 100; Router C and RouterD are at the default value. Router D has the highest IP address. Which router will beselected as the BSR?

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


Sample Question 12

What is the destination address of the MLDv2 general query?

A. FF02::1
B. FF02::2
C. FF02::16
D. The multicast group address of the multicast data that the router is receiving 


Sample Question 13

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


Sample Question 14

Which of the following about BGP Auto Discovery in an MVPN is TRUE?

A. If BGP Auto Discovery is used, MPLS LSPs must be used for the P-tunnels in theMVPN.
B. PIM state is maintained between PEs in the MVPN without PIM Hello messages.
C. MP-BGP keepalive messages are used to maintain adjacencies between the PEs in anMVPN.
D. MP-BGP can also be used as the multicast signaling protocol between the PEs andCEs.


Sample Question 15

How many types of Auto-Discovery routes are defined for MCAST-VPN NLRI?

A. 3
B. 5
C. 7 
D. 9


Sample Question 16

Which of the following is NOT an advantage of NG MVPN over Draft Rosen?

A. MP-BGP is more scalable than PIM.
B. Unicast and multicast traffic in the same VPRN service can use the same transporttunnel.
C. P routers in the core do not need to maintain any PIM group states.
D. An MPLS tunnel can be used instead of a GRE tunnel.


Sample Question 17

Which of the following describes a purpose of MP-BGP as used in NG MVPN?

A. Building GRE tunnels to carry multicast traffic.
B. Building MPLS tunnels to carry multicast traffic.
C. Allowing a PE to discover the other PE routers in an MVPN.
D. Exchanging multicast routing information between CE routers.


Sample Question 18

Which of the following multicast packets can be forwarded in the Internet?

A. A multicast packet destined to FF70::1234.
B. A multicast packet destined to FF1E::1234.
C. A multicast packet destined to FF02::1234.
D. A multicast packet destined to FF3A::1234.


Sample Question 19

Which of the following best describes the PMSI (provider multicast service interface) in anMVPN service?

A. The PMSI is the interface between the PEs and CEs in an MVPN service.
B. The PMSI is an overlay broadcast network that interconnects all PEs in an MVPNservice.
C. The PMSI is the PIM-enabled interface between the PEs in an MVPN service.
D. The PMSI is the GRE tunnel that carries customer multicast traffic across the serviceprovider core network.


Sample Question 20

Which of the following regarding the BGP Shared Tree Join route is TRUE?

A. The PE with a receiver for C-multicast group sends a BGP Shared Tree Join update tothe PE attached to the C-RP.
B. The PE with a receiver for C-multicast group sends a BGP Shared Tree Join update tothe RP in the provider core network.
C. The PE attached to C-RP sends a BGP Shared Tree Join update to the C-RP.
D. The PE attached to C-RP sends a BGP Shared Tree Join update to the PE attached tothe source.


Sample Question 21

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 receiverto the source.
D. There is not enough information provided here to answer the question.


Sample Question 22

What is the default version of IGMP on the Alcatel-Lucent 7750 SR?

A. Version 1
B. Version 2
C. Version 3
D. There is no default setting, you must configure the version when you enable IGMP on7750 SR


Sample Question 23

Four routers share a multi-access network. Router A is configured with a PIM DR priority of10, Router B is configured with a PIM DR priority of 100, Router C and Router D areAlcatel-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


Sample Question 24

An IGMP version 3 receiver signals EXCLUDE mode report with an empty EXCLUDE list. What does this indicate?

A. This is the initial join message; a list of sources to exclude will follow.
B. The receiver is willing to receive traffic from any source.
C. The receiver has received the query, but it does not wish to join any group.
D. The receiver is leaving the group.


Sample Question 25

Which of the following about the S-PMSI A-D route is FALSE?

A. It is sent by the ingress PE when the configured threshold is exceeded.
B. It eliminates the periodic MDT Join.
C. It eliminates the periodic PIM Hello.
D. It signals the multicast group address for the S-PMSI.


Sample Question 26

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

A. 01-00-5e-al-2a-6b
B. 01-00-5e-21-2a-6b
C. 01-00-5e-21-2c-6c
D. 00-01-5e-al-2a-6b
E. 00-01-5e-21-2a-6b
F. 00-01-5e-al-2a-6b


Sample Question 27

Which of the following about MLD snooping is FALSE?

A. MLD snooping enables switches to forward multicast data to specific hosts interested inthe group.
B. MLD snooping can co-exist with IGMP snooping in the same VPLS service.
C. Once MLD snooping is enabled, the switch can snoop both MLDv1 and MLDv2messages.
D. MLD snooping snoops MLD report and done messages, but not query messages.


Sample Question 28

How many bits of the IPv4 multicast address directly match bits in the multicast MACaddress?

A. 23
B. 25
C. 27
D. 28


Sample Question 29

Which of the following statements regarding the BSR and RP is FALSE?

A. A router can be configured as both a candidate-BSR and a candidate-RP.
B. A router configured as a candidate-BSR can also be configured as a static RP. 
C. A router configured as a candidate-RP can also be configured as a static RP.
D. A converged multicast network with BSR can have multiple routers elected as BSRs.
E. A converged multicast network with BSR can have multiple routers elected as RPs.


Sample Question 30

How often does a host issue IGMP Host Membership Reports for group 224.0.0.1?

A. Never
B. Every 30 seconds
C. Every 60 seconds
D. Every 120 seconds
E. Every 260 seconds
F. Whenever it receives a query


Sample Question 31

Which two protocols are used to signal P2MP LSPs?

A. BGPA-DandRSVP-TE
B. RSVP-TE and mLDP
C. mLDPamd PIM
D. mLDP and BGP A-D


Sample Question 32

Which of the following PIM messages are sent towards the RP? (Choose two)

A. (*, G) Join/Prune
B. (S, G) Join/Prune
C. Register Stop
D. (S, G, rpt) Join/Prune


Sample Question 33

An end station receiving a broadcast packet processes the data up to at least which layerof the OSI stack?

A. Layer 1
B. Layer 2
C. Layer 3
D. Layer 4
E. Layer 7


Sample Question 34

The Draft-Rosen S-PMSI address range is configured for 32 group addresses. Whathappens if there are more than 32 customer multicast flows that exceed the thresholdconfigured for the MVPN?

A. Traffic for the 33rd multicast flow is dropped.
B. Traffic for the 33rd multicast flow is transmitted on the I-PMSI.
C. The source PE reassigns the S-PMSI with the smallest flow to the new multicast flow.Traffic for the smaller flow is transmitted on the I-PMSI.
D. The source PE re-uses an S-PMSI that is currently in use for the 33rd flow. Traffic forboth flows is sent on the same S-PMSI.


Sample Question 35

In Draft Rosen, a PE router encapsulates customer multicast packets into provider packets.What source IP address is used for the provider packets?

A. The system IP address of the originating PE router.
B. The source IP address of the customer packet.
C. The outgoing interface IP address of the originating PE router.
D. The source IP address specified in the MVPN configuration.


Sample Question 36

How many responses are received when a router sends an IGMP version 3 query to aspecific multicast group with 6 active receivers on the local broadcast domain?

A. 1
B. 2
C. 6
D. 7


Sample Question 37

Which of the following describes UMH (Upstream Multicast Hop) selection?

A. It is the process of finding the remote PE connected to the C-root of the multicast tree.
B. It is the process of finding the remote CE connected to the C-root of the multicast tree.
C. It is the RPF check for the multicast traffic received from remote PEs in the MVPN.
D. It is the RPF check for the multicast traffic received from local CEs in the MVPN.


Sample Question 38

Which of the following about the use of BGP A-D in a MVPN service is TRUE?

A. If the I-PMSI is signaled by BGP A-D, then the S-PMSI must be signaled by BGP A-D.
B. If the I-PMSI is signaled by PIM, then the S-PMSI must be signaled by BGP A-D.
C. Customer group membership must be signaled by BGP A-D.
D. Customer group membership must be signaled by BGP A-D or PIM.


Sample Question 39

Which of the following best describes how S-PMSI construction is initiated in Draft Rosen?

A. The ingress PE sends an MDT Join TLV in the I-PMSI for a group address from theconfigured range.
B. The egress PE sends an MDT Join TLV in the I-PMSI for a group address from theconfigured range.
C. The ingress PE sends a PIM Join in the I-PMSI for a group address from the configuredrange.
D. The egress PE sends a PIM Join in the I-PMSI for a group address from the configuredrange.


Sample Question 40

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

A. Receivers are generally unknown by the source.
B. Receivers are generally known by each other.
C. It is well suited for applications in which the receivers provide feedback to each otherand 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. It is well suited for applications such as video on demand, where each source sends aseparate data stream to each of the many different receivers.



Exam Code: 4A0-108
Exam Name: Nokia Multicast Protocols
Last Update: May 13, 2024
Questions: 247