Nokia Nokia Certifications 4A0-100 Questions & Answers

• Question 111:

  Which of the following if a Layer 3 protocol?

  A. Ethernet

  B. TCP

  C. IP

  D. FTP

  Correct Answer: C

• Question 112:

  A given network with address 200.12.30.0 and network mask 255.255.255.0 is divided into 16 equal-sized subnetworks. How many hosts does each subnetwork support?

  A. 6

  B. 14

  C. 30

  D. 62

  Correct Answer: B

• Question 113:

  Which of the following statements about the IP forwarding process is TRUE?

  A. It uses the forwarding table to find a match for the source IP address.

  B. It uses the ARP table to find a match for the source MAC address.

  C. It uses the ARP table to find a match for the destination MAC address.

  D. It uses the forwarding table to find a match for the destination IP address.

  Correct Answer: D

• Question 114:

  What type of MAC address is 01:00:5e:01:01:01?

  A. Unicast

  B. Multicast

  C. Broadcast

  D. Anycast

  Correct Answer: B

• Question 115:

  A switch with the MAC FDB shown in the exhibit receives an Ethernet frame with source MAC address 00:00:8c:01:00:0a and destination MAC address ff:ff:ff:ff:ff:ff. On which ports is the frame forwarded?

  

  A. Only on port 1/1/1.

  B. On all ports except 1/1/1.

  C. On all four ports.

  D. On none of the ports.

  Correct Answer: A

• Question 116:

  What is the function of Layer 2?

  A. Layer 2 is responsible for encapsulating packets into frames for transmission on physical media.

  B. Layer 2 is responsible for encapsulating packets into IP datagrams and routing them.

  C. Layer 2 is responsible for encapsulating application data into TCP/UDP messages.

  D. Layer 2 is responsible for the timing of the signals on physical media.

  Correct Answer: D

• Question 117:

  Which of the following is NOT characteristic of Ethernet?

  A. It is a broadcast technology that can send frames to all devices attached to shared media.

  B. It uses a passive, wait-listen protocol called Carrier Sense Multiple Access with Collision Detection (CSMA/ CD).

  C. It uses IP addresses to identify interfaces on the common network media.

  D. It is part of the network interface layer of the TCP/IP protocol suite.

  Correct Answer: C

• Question 118:

  What must be configured before a LAG becomes operational?

  A. The cost must be statically configured on all ports in the LAG.

  B. The speed and duplex setting on all ports in the LAG must be the same.

  C. Auto-negotiation must be enabled on all ports in the LAG.

  D. The duplex setting on all the ports in the LAG must be forced to half.

  Correct Answer: B

• Question 119:

  Which ATM adaptation layer is usually used for connectionless data service?

  A. AAL1

  B. AAL2

  C. AAL3/4

  D. AAL5

  Correct Answer: C

• Question 120:

  Which of the following best describes an Ethernet switch?

  A. A passive device used to connect cables without signal amplification.

  B. A device that receives and retransmits data without Layer 2 header inspection.

  C. A device that receives and retransmits data based on the Layer 2 destination address.

  D. A device that receives and retransmits data based on the Layer 3 destination address.

  Correct Answer: C