Question 1

How many multicast groups may a single receiver join at any one time?

Accepted Answer

A)  1 
B)  2 
C)  4 
D)  256 
E)  As many as the operating system and software allow

Question 2

Which MAC address will the IPv4 multicast address 233.103.42.11 be translated to?

Accepted Answer

A)  01-00-5e-66-3a-6b 
B)  01-00-5e-75-2a-0b 
C)  01-00-5e-67-2a-0b 
D)  00-01-5e-a1-2a-6b 
E)  00-01-5e-67-2a-0b
F) 00-01-5e-76-2b-cc

Question 3

Refer to the exhibit.  Who will be the RP for group 239.1.34.92?

Accepted Answer

A)  10.10.10.24 since Dynamic has higher priority than Static 
B)  10.10.10.66 since 239.0.0.0/8 is more specific than 224.0.0.0/4 
C)  Both since 239.1.34.92 is part of both ranges 
D)  It depends on the setting of the override parameter 
E)  Neither since this presents a conflict

Question 4

Which of the following data delivery models are most applicable to multicast data delivery? (Choose two)

Accepted Answer

A)  One to one 
B)  Many to all 
C)  One to many 
D)  Many to many 
E)  One to all

Question 5

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

Accepted Answer

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.

Question 6

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

Accepted Answer

A)  Yes, that interface must be PIM enabled 
B)  No, it is unnecessary to enable PIM on that interface 
C)  If it's 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

Question 7

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

Accepted Answer

A)  Never 
B)  30 seconds 
C)  60 seconds 
D)  120 seconds 
E)  260 seconds
F) A router will never join this group

Question 8

Which of the following pairs correctly completes the sentence below? When Draft Rosen is deployed, PEs exchange CEs' unicast routing information via_________and exchange CEs'multicast group information via____________.

Accepted Answer

A)  MP-BGP, PIM 
B)  MP-BGP, MP-BGP 
C)  mLDP, PIM 
D)  MP-BGP, mLDP

Question 9

Which of the following statements best describes the behavior seen in the network when a receiver joins a multicast channel in the PIM ASM network shown in the exhibit?

Accepted Answer

A)  Both Router B and Router C will propagate a PIM (*, G) Join to the RP when a receiver joins 
B)  Only Router B will propagate a PIM (*.G) Join to the RP when a receiver joins 
C)  Only Router C will propagate a PIM(\G) Join to the RP when a receiver joins 
D)  Depends on the next hop for RP in Router D's RPF table

Question 10

In Draft Rosen, a PE router encapsulates customer multicast packets into provider packets. What is the destination IP address of the provider packets sent on the I-PMSI?

Accepted Answer

A)  The destination group address of the customer packets. 
B)  The multicast group address configured for the I-PMSI. 
C)  The system IP address of the receiving PE. 
D)  A multicast group address selected from the range of addresses specified in the I-PMSI configuration.

Question 11

What signaling protocol is used by a multicast receiver?

Accepted Answer

A)  IGMP 
B)  PIM 
C)  Either PIM or IGMP 
D)  Both PIM and IGMP

Question 12

When a BSR message with a higher priority is seen, will a new BSR election occur?

Accepted Answer

A)  No, the new election only occurs when the elected BSR fails 
B)  Yes, after a bootstrap message wait interval 
C)  Yes, immediately 
D)  Depends on the local configuration of whether to allow the new election or not

Question 13

Click the exhibit.  Which of the following statements is TRUE regarding the group address 239.1.1.1 in the BGP A-D message?

Accepted Answer

A)  239.1.1.1 is the destination multicast group address of this message. 
B)  239.1.1.1 is the customer multicast group address. 
C)  239.1.1.1 is the I-PMSI group address. 
D)  239.1.1.1 is the 5-PMSI group address.

Question 14

Refer to the following exhibit.  PIM is using the unicast table for RPF-check and the interface IGP metrics are shown. What will happen when Router B receives the multicast packet on its interface facing Router A?

Accepted Answer

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

Question 15

Which of the following regarding multicast reliability is TRUE?

Accepted Answer

A)  TCP provides reliable transport for multicast traffic. 
B)  UDP provides reliable transport for multicast traffic. 
C)  Reliability may be added with a higher layer protocol such as RTP (Real Time Protocol). 
D)  Multicast traffic does not need a reliable transport.

Question 16

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

Accepted Answer

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

Question 17

Which of the following statements about Mrouter port is false?

Accepted Answer

A)  Mrouter port is indicated by (**) entry in the MFIB 
B)  Mrouter port can be configured manually 
C)  A port on which any type of IGMP message is received will be set as an mrouter port 
D)  IGMP reports will only be forwarded out of mrouter ports once igmp-snooping is enabled in the vpls service

Question 18

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

Accepted Answer

A)  It is willing to receive traffic from all sources 
B)  It is willing to receive traffic from any source 
C)  This is the initial join message and a selection of source will follow 
D)  This is the way it indicates it is leaving the group

Question 19

How do routers in the PIM domain learn the address of the elected BSR?

Accepted Answer

A)  The address information of the elected BSR is unicast to them in a bootstrap message. 
B)  The address information of the elected BSR is flooded through the network in a bootstrap message. 
C)  The address information of the elected BSR is preconfigured on all routers. 
D)  The address information of the elected BSR is flooded through the network in a PIM Hello message.

Question 20

What message does the diverging router (router where the shared and Source Path Trees diverge) generate to stop the multicast traffic arriving via the RP?

Accepted Answer

A)  PIM (*, G) Join 
B)  IGMP (*, G) Join 
C)  PIM Hello 
D)  PIM (*, G) RP-bit prune

Exam 2: Nokia Border Gateway Protocol