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Exam : Alcatel-Lucent 4A0-100
Title : Alcatel-Lucent Scalable IP Networks

1. Which of the following are basic router functions ? Choose two.
A.Perform a Layer 2 header lookup
B.Broadcast a Layer 2 packet to all the interfaces.
C.IP header examination.
D.Determine the best path to the destination.
Answer: CD

2. What is the purpose of carrier sense in the CSMA/CD algorithm?
A.To ensure the host is able to detect an operational physical link before transmitting.
B.The host is able to detect the transmission speed of the Ethernet switch port to which the host is connected
C.The host will only transmit data when it detects that no other devices are transmitting
D.The host will only transmit upon a timer expiry
Answer: C

3. Click the Exhibit Button below
A customers Ethernet network consists of the following:
The diagram shows:
Four 24-port hubs for user connectivity
Three contact management database servers
A 60-port Fast Ethernet switch
Dedicated Ethernet connections for each of the hubs and the database servers on the Fast Ethernet switch
Which two of the following statements concerning this networks operation are true? (Choose two.)
A.the clients operate in full-duplex mode
B.there will be no collisions between client devices
C.collisions will occur between client devices
D.the server connections operate in full-duplex mode
Answer: CD

4. Which Ethernet frame fields are not considered when calculating the frame size? (Choose two.)
A.Frame check sequence
B.Preamble
C.Virtual Local Area Network (VLAN) tag
D.Start of frame delimiter
Answer: BD

5. What is the network layer responsible for?
A.Providing the physical address to the packet.
B.Determining the path to the remote host.
C.Providing reliable communications from host to host.
D.Formatting the PDU.
Answer: B

6. Which of the following must be true for an Ethernet network to operate in full duplex mode? (Choose two.)
A.dedicated point-to-point connectivity
B.collision detection circuit enabled
C.shared network connectivity
D.collision detection circuit disabled
Answer: AD

7. Which ATM adaptation layer is usually used for transporting IP datagrams?
A.AAL1
B.AAL2
C. AAL 3
D.AAL 5
Answer: D

8. Which of the following are phases of PPP operation? Choose two.
A.Link establishment
B.Authentication
C. Window size negotiation
D.Routing
Answer: AB

9. Which Ethernet frame field does the receiver use to verify the integrity of the received bits?
A.Destination address
B.Frame check sequence
C.Preamble sequence
D.Length field
Answer: B

10. Which two 7750SR Service Router physical access methods are used to perform Out of Band (OOB) management? (Choose two.)
A.console port
B.management Ethernet port
C.access ports
D.network ports
Answer: AB

11. A distance vector routing protocol uses which metric to choose the preferred route to a destination?
A.bandwidth
B.precedence
C.hop count
D.cost
Answer: C

12. What is store/forward method of switching frames?
A.The switch merely looks at the source mac address before switching
B.The switch looks at the source and destination mac address before switching.
C.The switch looks at the IP header information before switching
D.The switch receives the whole frame before switching.
Answer: D

13. In what OSPF area type will one see Type 7 LSAs.
A.Not So Stubby Area (NSSA)
B.Stub Area
C.Backbone Area
D.Normal Area
Answer: A

14. The Media Access Control (MAC) sub-layer is responsible for which two functions? (Choose two.)
A.directly interface with the transport layer
B.link integrity testing
C.physical addressing
D.data transmission synchronization
Answer: CD

15. Given a network address of 116.14.0.0, which of the following is a valid host address when using the subnet mask 255.255.255.240?
A.116.14.17.16
B.116.14.17.31
C.116.14.17.192
D.116.14.17.189
Answer: D

16. An Ethernet switch receives a frame addressed to an unknown destination. Assuming the frame is error-free, what will the switch do with the frame?
A.hold it in a buffer until it learns the port on which the destination is located
B.flood the frame out all ports except the source port
C.filter the frame and restrict it only to the source port
D.age out the source address forwarding table entry
Answer: B

17. Click the Exhibit Button below
An Ethernet Local Area Network (LAN) consists of the following components:
Four 24-port hubs
Two 16-port switches
How many broadcast domains are on this LAN?
A.1
B.2
C.4
D.16
Answer: A

18. Click the Exhibit Button below
An Ethernet Local Area Network (LAN) consists of the components shown in the diagram below:
How many broadcast and collision domains are on this LAN?
A.9 broadcast domains, 3 collision domains
B.3 broadcast domains, 3 collision domains
C.3 broadcast domains, 9 collision domains
D.1 broadcast domains, 9 collision domains
Answer: C

19. Which of the following are data rates defined for Ethernet operation over copper and fiber optic cabling? (Choose three.)
A.1 Mbps
B.10 Mbps
C.1000 Mbps
D.10,000 Mbps
Answer: BCD

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