Nokia 4A0-105 Online Practice Questions and Exam Preparation

Nokia 4A0-105 Online Questions & Answers

• Question 121:

  A router has just learned the 10th MAC address while the FDB size is also set to 10. What is the likely outcome?

  A. The frame is dropped.
  B. The frame is always flooded
  C. The frame is forwarded and MAC learning is automatically disabled.
  D. The frame is discarded if the destination is unknown.
  E. More information is required to determine the fate of this new frame.
  C. The frame is forwarded and MAC learning is automatically disabled.

• Question 122:

  Click on the exhibit below.

  

  The following IP filter has been configured and applied to a SAP in a non-VPLS service. Which of the following statements is true?

  A. An error will be generated and the configuration will not be allowed.
  B. The filter entry will be ignored and traffic matching the criteria will be forwarded
  C. All traffic matching entry 20 will be dropped.
  D. Traffic matching entry 20 will be forwarded to sdp 100:1.
  C. All traffic matching entry 20 will be dropped.

• Question 123:

  Click on the exhibit below.

  

  CE-A is on VLAN 200 and CE-B is on VLAN 300. Which of the following SAP ids can be configured on PE-A and PE-B to allow direct communication between CE-A and CE-B?

  A. PE-A will require a SAP id of "sap 1/1/1:200" and PE-B will require a SAP id of "sap 1/1/1:300.
  B. PE-A will require a SAP id of "sap 1/1/1" and PE-B will require a SAP id of "sap 1/1/1".
  C. PE-A will require a SAP id of "sap 1/1/1:0" and PE-B will require a SAP id of "sap 1/1/1:0".
  D. PE-A will require a SAP id of "sap 1/1/1:*" and PE-B will require a SAP id of "sap 1/1/1:*".
  A. PE-A will require a SAP id of "sap 1/1/1:200" and PE-B will require a SAP id of "sap 1/1/1:300.

• Question 124:

  What function in IEEE 802.1 ah helps to limit the amount of MAC addresses learned in the core?

  A. I-VPLS is configured in the core of the network with an l-MAC address. This l-MAC address is the only MAC learned in the core
  B. The B-VPLS and l-VPLS are configured in the edge. The B-VPLS is configured with a Backbone MAC and is the only MAC learned in the core
  C. Each SDP is configured with a Backbone MAC to hide customer MAC addresses in the core
  D. Each SAP is associated with a common l-MAC to hide customer MAC addresses in the core
  B. The B-VPLS and l-VPLS are configured in the edge. The B-VPLS is configured with a Backbone MAC and is the only MAC learned in the core

• Question 125:

  An MC-LAG is configured with default parameters. When a failed interface recovers, the active link reverts to the restored interface.

  A. TRUE
  B. FALSE
  B. FALSE

• Question 126:

  Which of the following is a function of the data plane that must be considered when provisioning a VPLS service?

  A. Number of LSPs.
  B. Number of TLDP sessions.
  C. Number of SDPs.
  D. MAC address consumption in the FDB.
  E. Bandwidth and replication requirements.
  E. Bandwidth and replication requirements.

• Question 127:

  Which of the following are required for an operational mesh-sdp binding for bidirectional traffic when signaling is enabled within the SDP? (Choose 3)

  A. LDP must be enabled.
  B. RSVP must be enabled.
  C. An SDP must be configured on the far-end.
  D. Service MTU must match.
  E. SDP ID must match.
  A. LDP must be enabled.
  C. An SDP must be configured on the far-end.
  D. Service MTU must match.

• Question 128:

  Click on the exhibit below.

  

  Management VPLS 100 has been created for redundant spoke-SDP connections. User VPLSs 10 and 20 are using the same spoke-SDPs that are being managed by VPLS 100. Unexpected behavior has been reported. Based on the following output, what is the most likely reason for the unexpected behavior?

  A. VPLS 100 was not actually configured as a management VPLS.
  B. VPLS 10 and VPLS 20 are not actually configured as a user VPLS.
  C. VPLS 10 and VPLS 20 are not using the same spoke-sdps that the management VPLS is using.
  D. Based on the output there is now way of telling if there is a problem with the configuration.
  A. VPLS 100 was not actually configured as a management VPLS.

• Question 129:

  Which of the following describes the scope of the IEEE 802.3ah EFM standard? (Choose 3)

  A. Monitor and troubleshoot a point-to-point full-duplex link.
  B. Monitor and troubleshoot end-to-end services.
  C. Can be used at the core to trigger MPLS protection mechanisms when a physical failure detection is not possible.
  D. Should not be used at the core to trigger MPLS protection. BFD is the only method that can be used when physical failure detection is not possible.
  E. Valuable in the last-mile connection to the Service Provider demarcation device.
  A. Monitor and troubleshoot a point-to-point full-duplex link.
  C. Can be used at the core to trigger MPLS protection mechanisms when a physical failure detection is not possible.
  E. Valuable in the last-mile connection to the Service Provider demarcation device.

• Question 130:

  Which of the following statements about Spanning Tree Protocol is true?

  A. For the switches that are non-root or designated switches, the port with the highest combined cost to the root is the root port.
  B. In the case where two switches have the same priority, the switch with the lowest MAC address becomes the root.
  C. The switch port that is the greatest distance from the LAN to the root is the designated port.
  D. All of the above.
  B. In the case where two switches have the same priority, the switch with the lowest MAC address becomes the root.