CCNP Practice Exam Questions:
BSCI Exam - Multicasting Question Set #1
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To help you beat the July 31, 2010 deadline for the demanding BSCI exam (and this exam does count on the new track, too!), here are seven practice exam questions on multicasting.
You'll find the answers at the bottom of the page, and you can find more CCNP Practice Exams as well when you're done with this one!
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Enjoy the questions!
Chris Bryant
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"The Computer Certification Bulldog"
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Question 1:
If a host wants to leave a multicast group and IGMPv2 is in place, what message will the host send?
A. Leave Group
B. None
C. Membership Report
D. Membership Request
Question 2:
What reserved multicast address is used by IGMPv3?
A. None
B. 224.0.0.2
C. 224.0.0.22
D. 224.0.0.222
Question 3:
What term describes the members of the multicast group 224.0.0.2?
A. all hosts on all segments
B. all hosts on this segment
C. all routers on this segment
D. all routers on all segments
Question 4:
Which of the following are scenarios where PIM Dense is a better selection than PIM Sparse?
A. Multicast source and recipients are physically close
B. There will be many recipients
C. Multicast source and recipients are physically apart
D. There will be few recipients
Question 5:
Short answer: What protocol uses the reserved multicasting address 224.0.0.12?
Question 6:
Which of the following are good reasons to select PIM Dense over PIM Sparse?
A. All routers in the network can forward multicast traffic.
B. The multicast routers are widely dispersed over the network.
C. There will be a great deal of multicast traffic.
D. The multicast traffic will be intermittent.
Question 7:
Identify the true statements:
A. PIM Dense creates a source-based multicast tree.
B. PIM Sparse creates a source-based multicast tree.
C. PIM Dense creates a shared multicast tree.
D. PIM Sparse creates a shared multicast tree.
Answers just a bit further down the page!
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Answers:
1. A. In IGMPv2, hosts have the ability to send a specific Leave Group message.
2. C. IGMPv2 uses the reserved multicast address 224.0.0.22.
3. C. 224.0.0.2 is the "all routers on this segment" multicasting destination address.
4. A, B. PIM Dense is an excellent choice if the source and destination hosts are physically close and there will be quite a few recipients.
5. The Hot Standby Routing Protocol (HSRP) uses the reserved multicast address 224.0.0.12.
6. A, C. Two more good situations to use PIM Dense over Sparse -- when all routers in the network can forward multicast traffic and when there will be a lot of that traffic.
7. A, D. Dense = Source-based, Sparse = shared tree.
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