Multicast Quiz
Multicast quiz
- 1.
What is the address range for IPv4 multicast?
- A.
224.0.0.0/8
- B.
232.0.0.0/8
- C.
239.0.0.0/8
- D.
224.0.0.0/4
Correct Answer
D. 224.0.0.0/4 -
- 2.
For IPv4 multicast, what is the administratively scoped address range?
- A.
239.0.0.0/8
- B.
240.0.0.0/4
- C.
224.0.0.0/8
- D.
232.0.0.0/8
Correct Answer
A. 239.0.0.0/8 -
- 3.
What are IPv4 administratively scoped multicast addresses used for?
- A.
Allocation of multicast group addresses for use by an enterprise across public networks (i.e. Internet)
- B.
Allocation of multicast group addresses for exclusive use on private networks
- C.
Allocation of multicast addresses for PIM-SM ASM
- D.
Nothing, there is no such thing.
Correct Answer
B. Allocation of multicast group addresses for exclusive use on private networks -
- 4.
How is the GLOP address range (233.0.0.0/8) utilized?
- A.
Allocation of multicast group addresses for use by an enterprise across public networks (i.e. Internet)
- B.
Allocation of multicast group addresses for exclusive use on private networks
- C.
Allocation of multicast addresses for PIM-SM SSM
- D.
Nothing, there is no such thing.
Correct Answer
A. Allocation of multicast group addresses for use by an enterprise across public networks (i.e. Internet) -
- 5.
How does SSM differ from PIM-SM ASM? (Check all that apply)
- A.
Reduces the risk of a Captain Midnight group hijacking
- B.
Does not require an RP or shared tree
- C.
Provides a method to request a well known source vs. any source
- D.
Allows reuse of group addresses and increases the available multicast address space by enabling multiple sources to use the same group address (overlapping group address) for different content
Correct Answer(s)
A. Reduces the risk of a Captain Midnight group hijacking
B. Does not require an RP or shared tree
C. Provides a method to request a well known source vs. any source
D. Allows reuse of group addresses and increases the available multicast address space by enabling multiple sources to use the same group address (overlapping group address) for different content -
- 6.
In Ethernet LANs, what is the functional equivalent to IGMPv3 in IPv6?
- A.
IGMPv3 includes IPv6 multicast support, that's why it is v3
- B.
MLDv2
- C.
IGMPv6
- D.
IPv6's native support for multicast routing deprecates this need
Correct Answer
B. MLDv2 -
- 7.
How is Multicast RPF checking is important when running PIM Sparse Mode? (Check all that apply)
- A.
To prevent multicast source spoofing (Captain Midnight)
- B.
To prevent receiver spoofing (Captain Midnight)
- C.
To prevent multicast forwarding loops by validating the receiving interface is the reverse path to the S address
- D.
To prevent multicast forwarding loops by validating the receiving interface is the reverse path of the G addresss
Correct Answer
C. To prevent multicast forwarding loops by validating the receiving interface is the reverse path to the S address -
- 8.
What steps are involved in establishing Inter-Domain (ie. across AS boundaries) multicast who both utilize PIM-SM ASM?
- A.
Multicast BGP (mBGP) peering between entities
- B.
MBGP peering and advertisement of multicast routes between entities
- C.
MSDP peering between RPs in each PIM domain
- D.
Anycast RP configuration between both entities
Correct Answer(s)
B. MBGP peering and advertisement of multicast routes between entities
C. MSDP peering between RPs in each PIM domain -
- 9.
Which of the following are required for Anycast RP?
- A.
Two or more routers configured with the same loopback address as the RP
- B.
Unicast path through the network to the Anycast RP address
- C.
MSDP peering between RPs using the same address
- D.
Auto RP configured on routers throughout the network
Correct Answer(s)
A. Two or more routers configured with the same loopback address as the RP
B. Unicast path through the network to the Anycast RP address
C. MSDP peering between RPs using the same address -
- 10.
Which of the following multicast protocols should customers not seek to deploy today?
- A.
DVMRP
- B.
MOSPF
- C.
PIM Dense Mode
- D.
SSM
Correct Answer(s)
A. DVMRP
B. MOSPF
C. PIM Dense Mode -
- 11.
When a customer asks which IGP is preferred for deploying IPv4 multicast, which should you recommend?
- A.
OSPFv2
- B.
OSPFv3
- C.
ISIS
- D.
EIGRP
Correct Answer
D. EIGRPExplanation
The answer is always EIGRP. What was the question again? ;)
They can use anything they want. PIM will uses the unicast routing table generated by the IGP for the RPF checkRate this question:
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Current Version
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Apr 11, 2013Quiz Edited by
ProProfs Editorial Team -
Apr 10, 2013Quiz Created by
Nnbb
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