Nokia 4A0-105 Online Practice Questions and Exam Preparation

Nokia 4A0-105 Online Questions & Answers

• Question 31:

  Which of the following SAP encapsulations supports only one service on a port?

  A. Dot1Q
  B. Null
  C. Q-in-Q
  D. Ipcp
  E. BCP
  B. Null

• Question 32:

  What is the default Spanning Tree protocol used in a VPLS on the Alcatel-Lucent 7750 SR?

  A. 802.1D2004
  B. 802.1D 1998
  C. comp-dot1w
  D. PVST
  A. 802.1D2004

• Question 33:

  MC-LAG is only supported on network ports.

  A. TRUE
  B. FALSE
  B. FALSE

• Question 34:

  Click on the exhibit below.

  

  In the following diagram, traffic ingressing on SAP 1/2/3:1 will be passed to the layer-2 DPI device for inspection based on a filter policy applied to the ingress of the SAP. What feature should be enabled on SAP 1/2/1:100 and SAP 1/2/2:100 to ensure that incorrect information is not populated in the FDB of VPLS 1?

  A. Learning should be disabled on both SAPs connected to the DPI device to prevent FDB instability
  B. A MAC filter should be applied to both SAPs connected to the DPI to limit MAC learning on the port
  C. An IP filter should be applied to both SAPs connected to the DPI to prevent FDB instability
  D. The SAPs connected to the DPI should be configured with the "discard-unknown" feature to limit MAC learning on the port
  A. Learning should be disabled on both SAPs connected to the DPI device to prevent FDB instability

• Question 35:

  What is the MTU impact on the SDP path-mtu if fast reroute, one-to-one mode is implemented on the LSP?

  A. There will be no impact on the path-mtu.
  B. The path-mtu will decrease by4 bytes.
  C. The path-mtu will increase by 4 bytes.
  D. The path-mtu will decrease by 8 bytes.
  E. The path-mtu will increase by 8 bytes.
  A. There will be no impact on the path-mtu.

• Question 36:

  To reduce the amount of flooding between PE devices which of the following steps should be taken?

  A. Configure the local age timer to be larger.
  B. Configure the local age timer to be lower.
  C. Configure the remote age timer to be larger.
  D. Configure the remote age to be lower.
  C. Configure the remote age timer to be larger.

• Question 37:

  Click on the exhibit below.

  

  Assume the port on CE-A is sending two tags, a top tag of 100 and a bottom tag of 500. PE-A is configured with a SAP id of 1/1/1:100.*. How should PE-B be configured if CE-B is expecting a top tag of 200 and a bottom tag of 500?

  A. PE-B will require a SAP id of "sap 1/1/1:500*".
  B. PE-B will require a SAP id of "sap 1/1/1:100*".
  C. PE-B will require a SAP id of "sap 1/1/1:500.200".
  D. PE-B will require a SAP id of "sap 1/1/1:200*".
  D. PE-B will require a SAP id of "sap 1/1/1:200*".

• Question 38:

  What scaling factors should a network engineer be aware of when designing VPLS networks? (Choose 3)

  A. Control plane scaling.
  B. Data plane scaling.
  C. Network touches.
  D. Route table reduction.
  E. OAM tools.
  A. Control plane scaling.
  B. Data plane scaling.
  C. Network touches.

• Question 39:

  Which of the following statements relating to VPLS is false?

  A. A VPLS is a multipoint Layer 2 service.
  B. A VPLS allows multiple customer sites to be connected in a single bridged domain.
  C. A VPLS on a single node requires a SDP.
  D. With an IP/MPLS infrastructure, service providers can provide multiple VPLS services over a common IP/MPLS infrastructure.
  E. The VPLS switches traffic based on MAC address associated to the appropriate SAP.
  C. A VPLS on a single node requires a SDP.

• Question 40:

  Five VPLS services have been configured between two PE routers. What is the minimum amount of SDPs that must be configured?

  A. 5-one for each service.
  B. 2-one in each direction.
  C. 10-five in each direction.
  D. None of the above.
  B. 2-one in each direction.