Nokia 4A0-105 Online Practice Questions and Exam Preparation

Nokia 4A0-105 Online Questions & Answers

• Question 141:

  What is the DA address used for in the Ethernet Header?

  A. MAC learning
  B. SA filtering
  C. Routing table population
  D. Frame forwarding
  D. Frame forwarding

• Question 142:

  Click on the exhibit below.

  

  Based on the following configuration which VLANs will be managed by the management VPLS?

  A. VLANs 1-4094
  B. VLAN 0
  C. There is not enough information provided
  D. None, this is an invalid configuration
  A. VLANs 1-4094

• Question 143:

  H-VPLS solves the data-plane and control-plane problems with the exception of one issue. What is the concern that H-VPLS does not solve?

  A. Increased LSP count.
  B. Number of TLDP sessions.
  C. The amount of network touches.
  D. FDB consumption.
  E. Increased bandwidth and replication.
  D. FDB consumption.

• Question 144:

  What must be enabled in order to prevent a loop within a LAG?

  A. RSTP
  B. Dynamic-cost
  C. LACP active
  D. Nothing, There are no loops in LAGs
  C. LACP active

• Question 145:

  MAC explosion is best described as a large amount of MAC addresses being withdrawn and relearned?

  A. TRUE
  B. FALSE
  A. TRUE

• Question 146:

  IEEE 802.3ah is similar to SONET/SDH in that it can count and report bit errors and frame errors.

  A. TRUE
  B. FALSE
  A. TRUE

• Question 147:

  Consider a large metro-to-metro VPLS network interconnected with a mesh of mesh-SDPs. Which of the following statements does NOT apply to this situation?

  A. Bandwidth and replication inefficiency can occur on inter-metro links if there is a lot of multicast traffic
  B. The number of control sessions grows exponentially in a fully meshed network.
  C. Spanning-tree is required to prevent loops when using mesh SDPs on the inter-metro links.
  D. Network touches increase with each node added to the mesh.
  C. Spanning-tree is required to prevent loops when using mesh SDPs on the inter-metro links.

• Question 148:

  Click on the exhibit below.

  

  Assume a CE router is connected to the SAP of each PE. The arp cache of all CE routers is empty and the FDB for VPLS 300 is empty. The CE router connected to PE-A initiates a ping towards the CE router connected to PE-C. The ping is successful. Which of the following statements are true? (Choose 2)

  A. The FDB on PE-A will contain entries for all CE routers.
  B. The FDB on PE-B will contain an entry for the CE router connected to PE-A.
  C. The FDB on PE-B will contain an entry for all CE routers.
  D. The FDB on PE-C will contain entries for the CE router connected to PE-A and the CE router connected to PE-C.
  B. The FDB on PE-B will contain an entry for the CE router connected to PE-A.
  D. The FDB on PE-C will contain entries for the CE router connected to PE-A and the CE router connected to PE-C.

• Question 149:

  Which OAM tool can be used to dynamically learn the MAC address of a CE device connected to a SAP within a VPLS service?

  A. oam mac-populate
  B. oam mac-ping
  C. oam mac-trace
  D. oam svc-ping E. oam cpe-ping
  E

• Question 150:

  Click on the exhibit below.

  

  Based on the following output what will the vc-id be of any mesh-sdp bound to this service?

  A. 9000
  B. 1514
  C. 1000
  D. 100
  C. 1000