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Nguyen The Nhat - Take Exam

Exam questions

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1 How do you configure PIM?

Use one global configuration command

Use one global configuration command as well as enable PIM on each interface of the RP where you want

to forward multicast traffic

Use one interface command

Use one global command and two interface commands

2 PIM can support both dense-mode and sparse-modes simultaneously

True

False

3 Using IGMPv2, the RP with the _ IP address on the segment is automatically elected as the

multicast querier for the segment

highest

lowest

multicast

destination

4 By default, CGMP is:

enabled (sai)

disabled (sai)

only enabled on the 1900/2820 switches (sai)

disabled, except for the 2900XL (dung)

5 Convert the multicast address 239.128.37.225 to its corresponding multicast MAC address

01.00.00.00.25.e1

01.00.5e.00.25.e1

01.00.5e.25.00.e1

01.00.5e.e1.25.00

6 In which of the following transmission methods are packets replicated on an as needed basis?

Unicast

Broadcast

Multicast

Overcast

7 Using IGMPv1, what is a way that a host can join a multicast group?

The host generates a segment query

The RP generates a query message

The RP generates a host membership report message

The host must be currently in accept mode

8 What are the two different types of messages shared by multicast hosts and multicast queries?

Query messages

Multicast messages

Group messages

Report messages

9 Cisco does not support MOSPF

True (dung)

False (sai)

10 What are the IGMP default settings on a Catalyst 5000 switch?

Snooping enabled and CGMP disabled (sai)

Snooping disabled and CGMP enabled

Snooping disabled and CGMP disabled (dung)

Snooping enabled and CGMP enabled

11 MOSPF works with OSPF by including information about segments that have an active multicast group in the OSPF link-state advertisements

True (dung)

False

12 What command is used to enable CGMP on an RP?

cgmp

set cgmp

ip cgmp

none of the above

13 PIM, like MOSPF, requires OSPF

True (sai)

False (dung)

14 CGMP is best described by which of the following statements?

CGMP uses a large amount of overhead

It snoops IGMP queries/reports to learn end-station locations

It has the switch interact with the RP to discover the location of multicast end-stations

It has an effect on Layer 2 switching speeds of your Catalyst switches

15 For CGMP to work: (Choose two)

Only configure it on the switch

Configure it on the switch

Make sure it is running over a trunk link

Configure it on the router

16 Using IGMPv1, when a host wants to join a multicast group, it generates a _ message Group host

Host membership report

Member host

Host generation

17 How does a Layer 2 switch handle multicast traffic by default?

Blocks it

Sends it to all ports (dung)

Sends it to all ports except the one it was received on

Sends it only to the ports that request it

18 What are the two different distribution modes that PIM uses for multicast routing?

Common

Uncommon

Sparse

Dense

19 Most of the industry uses routing protocols to set up their multicast distribution trees

single-mode

multi-mode

sparse-mode (dung)

dense-mode

20 As a design rule, what is the maximum time that should be allowed for a voice packet to cross a network?

60 milliseconds

120 milliseconds

150 milliseconds

210 milliseconds

21 Convert the multicast address 224.48.77.32 to its corresponding multicast MAC address

01.00.5e.30.4d.20

01.00.5e.00.4d.20

01.00.5e.4d.30.20

01.00.5e.20.4d.30

22 The CGMP frame:

is sent to 224.0.1.1

contains the multicast group address of the application

allows Cisco routers to learn from IGMP-enabled switches

contains the real MAC address of the end station (dung)

23 Given the multicast address 225.192.222.174, to find the MAC address conversion, you would first have to convert this IP address to:

01.00.5e.40.e0.f5

224.64.222.174

225.320.222.174

225.64.222.174

24 CGMP is best described by which one of the following statements?

It has the switch examine IGMP report frames from end stations to learn where they are located

It uses VLANs to contain multicast traffic

It has the switch interact with the RP to discover the location of multicast end stations (dung)

It uses manual configuration of multicast addresses in the CAM table

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