Nokia Nokia Certifications 4A0-100 Questions & Answers

• Question 301:

  The method by which Ethernet frames are associated to a specific VLAN is referred to as:

  A. Segmenting

  B. Stacking

  C. Routing

  D. Tagging

  Correct Answer: D

• Question 302:

  What information is used to separate VLANs on a VLAN trunk that connects multiple VLANs?

  A. VLAN tag.

  B. IP Header.

  C. FCS.

  D. Priority Value.

  Correct Answer: A

• Question 303:

  A 24 port Ethernet switch is configured with VLAN 100 on ports 1 - 8, VLAN 200 on ports 9 - 16 and VLAN 300 on ports 17 - 24. Which of the following describes the behavior of the switch when a broadcast frame

  is received on port 1?

  A. The switch will discard the broadcast frame because there is no specific destination address.

  B. The switch will flood the broadcast frame on all ports on which the switch has seen frames from attached devices

  C. The switch will flood the broadcast frame on ports 2 to 8.

  D. The switch will flood the broadcast frame on all 24 ports.

  Correct Answer: C

• Question 304:

  What is required if devices on different VLANs wish to communicate with each other?

  A. Devices on different VLANs cannot communicate with each other.

  B. Devices on different VLANs can communicate with each other as long as they are connected to the same switch.

  C. Devices on different VLANs can communicate with each other as long as the switches they are attached to are connected to each other with an Ethernet connection.

  D. Devices on different VLANs can communicate with each other if there is an IP router to connect the VLANs.

  Correct Answer: D

• Question 305:

  What problems was Spanning Tree Protocol (STP) primarily designed to solve? (Choose two):

  A. Providing path redundancy.

  B. Preventing loops.

  C. Handling collisions.

  D. Allowing flooding of multicast traffic.

  Correct Answer: AB

• Question 306:

  Which of the following is a feature of a VLAN?

  A. A VLAN allows multiple Ethernet switches to be connected in a single broadcast domain.

  B. A VLAN allows multiple Ethernet switches to be connected in a single collision domain.

  C. A VLAN can separate ports on the same switch into different broadcast domains.

  D. A VLAN can separate ports on the same switch into different collision domains.

  Correct Answer: C

• Question 307:

  Which technologies can be used with Ethernet switches to achieve redundancy? (Choose two)

  A. LAG

  B. OSPF

  C. RIP

  D. STP

  Correct Answer: AD

• Question 308:

  In what type of network is a broadcast storm likely to occur?

  A. An Ethernet network with redundant paths not running STP.

  B. An ATM network.

  C. A SONET network.

  D. All of the above.

  Correct Answer: A

• Question 309:

  What is the behavior of a typical Ethernet switch when it receives a frame with a uncast destination MAC address? (Choose two)

  A. The switch floods the frame out of all ports except the port on which it was received.

  B. The switch looks in its FDB. If the source address is unknown it discards the frame.

  C. The switch looks in its FDB. If the destination address is known it forwards the frame out the appropriate interface.

  D. The switch looks in its FDB. If the destination address is unknown it floods the frame out all ports except the port on which it was received.

  E. The switch looks in its FDB. If the destination address is unknown it discards the frame.

  Correct Answer: CD

• Question 310:

  What happens immediately after an Ethernet switch receives an Ethernet frame?

  A. It records the destination MAC address and the interface on which it arrived.

  B. It records the source MAC address and the interface on which it arrived.

  C. It floods the frame out of all its interfaces except the interface on which the frame arrived.

  D. It transmits the frame out of the appropriate interface.

  Correct Answer: B