Nokia 4A0-105 Online Practice Questions and Exam Preparation

Nokia 4A0-105 Online Questions & Answers

• Question 21:

  How is the Primary Bridge chosen in a VPLS?

  A. The PE devices participating in the VPLS mesh run a separate Spanning Tree instance in the Core. The Primary Bridge is the Root Bridge for the VPLS mesh.
  B. The PE devices participating in the VPLS mesh determine which bridge is closest to Root Bridge. This bridge becomes the Primary Bridge.
  C. The PE devices participating in the VPLS mesh determine which bridge has the lowest bridge-id. This bridge becomes the Primary Bridge.
  D. The PE devices participating in the VPLS mesh determine which bridge is the Root Bridge. This becomes the Primary Bridge.
  B. The PE devices participating in the VPLS mesh determine which bridge is closest to Root Bridge. This bridge becomes the Primary Bridge.

• Question 22:

  What is the default fdb size for a VPLS service?

  A. 100
  B. 1
  C. 25
  D. 250
  D. 250

• Question 23:

  Two management VPLSs have been created. mVPLS 1 and mVPLS 2. Two user VPLS services exist. uVPLS 10 and uVPLS 20. What command can be used to determine which management VPLS is managing uVPLS 10?

  A. show stp 10
  B. show service vpls 1 stp
  C. show service id 10 stp
  D. show service id 1 stp or show service id 2 stp
  C. show service id 10 stp

• Question 24:

  Why are provisioning requirements a factor that influence VPLS design? (Choose 2)

  A. Adding or removing a node may require several network touches.
  B. Adding or removing a SAP may require several network touches.
  C. Adding or removing a service may require several network touches.
  D. Adding or removing an Epipe may require several network touches.
  E. Provisioning is a factor for all Ethernet services.
  A. Adding or removing a node may require several network touches.
  C. Adding or removing a service may require several network touches.

• Question 25:

  If a management VPLS is administratively disabled what will be the status of the associated user VPLS SAPs?

  A. Regular semantics will apply. It will be as if the SAP doesn't belong to a management VPLS.
  B. All user VPLS SAPs will be disabled/pruned.
  C. It is not possible to administratively disable a management VPLS.
  D. Spanning tree will be automatically enabled on the user VPLS SAPs.
  B. All user VPLS SAPs will be disabled/pruned.

• Question 26:

  The following question relates to this command syntax: "config>service# vpls 9000 customer 6 create". Which of the following statements are correct? (Choose 2)

  A. The customer-id in this command is 9000.
  B. The service-id in this command is 9000.
  C. This value 9000 should be unique across the network as a best practice.
  D. The vc-id will be 6 for the service by default.
  E. The egress vc-label will be 9000.
  B. The service-id in this command is 9000.
  C. This value 9000 should be unique across the network as a best practice.

• Question 27:

  RSTP blocks a spoke-sdp using a management VPLS. Is traffic affected on an ES using the same transport SDP?

  A. Yes
  B. No
  A. Yes

• Question 28:

  Which of the following technologies allows for two explicit VLAN tags to be received from a customer device?

  A. RSVP-TE
  B. SP-VLAN
  C. QinQ
  D. Dot1Q
  C. QinQ

• Question 29:

  Which of the following is a true statement?

  A. In a dynamic environment where MAC addresses are changing rapidly, the lower the age- time, the larger the fdb-table-size should be.
  B. In a dynamic environment where MAC addresses are changing rapidly, the higher the age- time, the larger the fdb-table-size should be.
  C. In a dynamic environment where MAC addresses are changing rapidly, the higher the age- time, the smaller the fdb-table-size should be.
  D. There is no relationship between the age-time and the fdb-table-size.
  B. In a dynamic environment where MAC addresses are changing rapidly, the higher the age- time, the larger the fdb-table-size should be.

• Question 30:

  Which of the following functions must a PE router support when participating in a VPLS service? (Choose 3)

  A. MAC learning
  B. Frame replication
  C. Frame fragmentation D. Frame forwarding
  E. Must discard frames with an unknown destination MAC
  F. MSTP
  A. MAC learning
  B. Frame replication