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Free Nokia 4A0-105 Practice Exam with Questions & Answers | Set: 4

Questions 31

Which of the following must be true in order to add a port to a LAG? (Choose 2)

Options:
A.

ports must be on the same MDA

B.

ports must have the same speed and duplex settings

C.

auto negotiation must be on

D.

auto negotiation must be off or limited

E.

port must be in access mode only

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Questions 32

What is PBB also known as?

Options:
A.

H-VPLS

B.

IEEE 802.lag

C.

MAC aggregation

D.

MAC-in-MAC

Questions 33

Click on the exhibit below.

4A0-105 Question 33

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

Options:
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.

Questions 34

If the max remote-age timer of a B-VPLS is reached, what happens to the remotely learned MAC addresses in the l-VPLS service?

Options:
A.

There is no effect. The MAC addresses for the l-VPLS age out independently of the aging of B-VPLS addresses.

B.

The MAC addresses for the l-VPLS will age out immediately following the remote-age out of the backbone-macs of the B-VPLS.

C.

By default, the remote-age timer of the B-VPLS is configured to 0 and addresses do not age out. The l-VPLS uses its own timer.

D.

The same timer is used for B-VPLS and l-VPLS addresses on the node.

Questions 35

What is the default service-mtu for a VPLS service?

Options:
A.

1500

B.

1514

C.

1518

D.

It depends on the access port MTU.

E.

It depends on the network port MTU.

Questions 36

Which of the following statements about the VC-ID is false?

Options:
A.

The vc-id is signaled in the control plane.

B.

The vc-id is part of the data plane encapsulation.

C.

There is a vc-id to vc-label mapping.

D.

The vc-id has point to point significance.

Questions 37

Click on the exhibit below.

4A0-105 Question 37

Based on the output below which of the following statements is true? (Choose 2)

Options:
A.

VPLS1500 is a user VPLS.

B.

VPLS 1500 is management VPLS.

C.

Spanning tree BPDUs for the management VPLS are tagged.

D.

Spanning tree BPDUs for the management VPLS are untagged.

Questions 38

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

Options:
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.

Questions 39

During the process of troubleshooting a VPLS problem the "oam mac-purge" command with "register" option was used to purge a MAC address from the FDB. Which of the following statements is true?

Options:
A.

Relearning of the MAC address that was purged can only be done once customer traffic resumes.

B.

Relearning of the MAC address that was purged can only be done with the "oam mac-populate" command.

C.

Customer traffic destined to the MAC address that was purged will be dropped until the MAC address is relearned with the "oam mac-populate" command.

D.

Relearning of the MAC address that was purged can only be done with the "oam mac-register" command.

Questions 40

Click on the exhibit below.

4A0-105 Question 40

The VPLS service MTU on R2 is 1514 bytes. What must the service MTU be on all other routers participating in the VPLS?

Options:
A.

The service MTU must be equal to or smaller than 1514 bytes.

B.

The service MTU must be 1514 bytes.

C.

The service MTU must be equal to or greater than 1514 bytes.

D.

The service MTU can be any value.

Exam Code: 4A0-105
Certification Provider: Nokia
Exam Name: Nokia Virtual Private LAN Services
Last Update: Mar 28, 2025
Questions: 156

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