Summer Special Limited Time 65% Discount Offer - Ends in 0d 00h 00m 00s - Coupon code: dcdisc65

Page: 1 / 5
Total 46 questions
Exam Code: 4A0-105                Update: Oct 15, 2025
Exam Name: Nokia Virtual Private LAN Services

Nokia Nokia Virtual Private LAN Services 4A0-105 Exam Dumps: Updated Questions & Answers (October 2025)

Question # 1

Click on the exhibit below.

A new site is added to PE-D of Metro B. Which of the following statement below is true?

A.

If a spoke-SDP is configured between the new site and PE-D no further SDPs will be required.

B.

If a mesh- SDP is configured between the new site and PE-D no further SDPs will be required.

C.

A mesh- SDP must be configured between the new site and all other PEs within Metro B.

D.

A spoke- SDP must be configured between the new site and all other PEs within Metro B.

Question # 2

Click on the exhibit below.

If the SDP between R2 and R1 goes down, what devices will be reachable from R2 through the VPLS?

A.

Only R4 will be reachable through the VPLS.

B All devices will be reachable through the VPLS.

B.

R4 and R3 will remain reachable.

C.

No devices will be reachable.

Question # 3

When a PE node receives a PBB encapsulated frame on a B-VPLS, how does the PE determine which l-VPLS it belongs to?

A.

The l-TAG in the l-SID is inspected to determine where the frame should be delivered.

B.

When the B-MAC header is stripped the customer MAC address is then looked up in the FDB

C.

The l-SID in the l-TAG is inspected to determine where the frame should be delivered.

D.

The PE inspects the service label in the MPLS header before stripping the B-MAC header.

Question # 4

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.

Question # 5

Click on the exhibit below.

The following VPLS services and SAPs have been configured. Which of the following statements is true?

A.

All untagged frames will be dropped.

B.

The source MAC address of a frame with a top tag of 200 and bottom tag of 300 will be populated in VPLS 3.

C.

All frames with more than one tag will be dropped.

D.

The source MAC address of a frame with a single tag of 500 will be populated in VPLS 1.

E.

The source MAC address of a frame with a top tag of 100 will be populated in VPLS 2.

Question # 6

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

Question # 7

Click on the exhibit below.

Study the diagram shown. What consideration should be given to the transport tunnel of SDP 300?

A.

The SDP must be configured to use GRE encapsulation.

B.

The SDP must follow the same path as the user's SDP.

C.

The SDP should be configured to use an RSVP signaled transport with fast reroute.

D.

The SDP must be the same as the user's SDP.

Question # 8

In RSTP, an alternate port is on the same switch as a designated Port.

A.

TRUE

B.

FALSE

Question # 9

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

A.

TRUE

B.

FALSE

Question # 10

How does the IEEE 802.1ag loopback function differently from the loopback feature in 802.3ah? (Choose 2)

A.

Theloopbackfuntionin802.1ag is an intrusive test that will stop customer data.

B.

The loopback function of 802.lag is a non-intrusive "ping" sent from a MEP to a remote MEP or MIP.

C.

The loopback function in 802.3ah is an intrusive test that will loop customer data.

D.

The loopback function of 802.lag is an intrusive test that will "loop" all customer data back to the original sender.

Page: 1 / 5
Total 46 questions

Most Popular Certification Exams

Payment

       

Contact us

dumpscollection live chat

Site Secure

mcafee secure

TESTED 16 Oct 2025