Online Access Free Alcatel-Lucent.4A0-100.v2022-03-07.q377 Practice Test (Page 25)

4A0-100 Exam Question 116

Which of the following statements about VPWS service on a Nokia 7750 SR is FALSE?

A.VPWS emulates a Layer 2 connection between two customers.

B.VPWS does not perform MAC learning.

C.VPWS encapsulates Layer 2 frames into IP datagrams.

D.VPWS is a simple point-to-point service.

4A0-100 Exam Question 117

Which of the following is TRUE regarding Ethernet half-duplex transmission?

A.Half-duplex transmission is less efficient because the frame MTU is smaller.

B.Ethernet switches only support half-duplex transmission.

C.All of the above.

D.An end-station connected to a hub will always be half-duplex.

4A0-100 Exam Question 118

In the diagram, R7 receives a new LSA from R3 and installs it in its link state database. 10 ms. later it receives another copy of the LSA with the same sequence number from R8. What does R7 do with the LSA received from R8?

A.R7 silently discards the LSA received from R8.

B.R7 installs the LSA received from R8 in its link state database and floods a copy to its neighbors.

C.R7 discards the LSA received from R8 and sends an ACK to R8.

D.R7 installs the LSA received from R8 in its link state database, sends an ACK to R8 and floods a copy to its neighbors.

4A0-100 Exam Question 119

In the diagram, R3 receives an LSA with the sequence number 111 from R7 and then receives another copy of the LSA with a sequence number 112 from R1. What does R3 do with the LSA from R1?

A.R3 discards the LSA received from R1 and sends a copy of the LSA from its link state base to R1.

B.R3 installs the LSA received from R1 in its link state database, sends an ACK to R1 and floods a copy to its neighbors.

C.R3 installs the LSA received from R1 in its link state database and floods a copy to its neighbors.

D.R3 discards the LSA received from R1 and sends an ACK to R1.

4A0-100 Exam Question 120

What ICMP message type will a router use to indicate to a host that an IP datagram sourced from that host cannot be delivered?

A.Echo Request.

B.Echo Reply.

C.Destination Unreachable.

D.Router redirect.

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