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Nokia 4A0-C02 - Nokia SRA Composite Exam

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Page: 6 / 13
Total 639 questions

Click on the exhibit below.

Given the following output what is the most likely reason the SDP binding is operationally down? (Choose 2)

A.

The sdp id is different on the far-end.

B.

LDP is disabled on the far-end.

C.

The vc-id is different on the far-end.

D.

The mesh-sdp is missing on the far-end.

E.

The mesh-sdp is administratively shutdown on PEL

F.

There is an MTU mismatch.

When deploying Active/Standby pseudowires, the CE does not require any special configuration

A.

TRUE

B.

FALSE

The service mtu of a VPLS is set to 9100. What is the recommended MTU value that can be set for the access port assuming dot1q encapsulation?

A.

9100

B.

9104

C.

9108

D.

9122

E.

9126

Why is MAC explosion a factor to be considered when designing a large VPLS network? (Choose 2)

A.

The time to relearn thousands of MAC addresses may result in excessive flooding or loss of packets.

B.

If the FDB reaches the limit, the router will discard frames.

C.

Discarding frames when the FDB limit is reached could deny SLA guarantees.

D.

It could take several seconds to relearn thousands of MAC addresses denying QoS/SLA guarantees.

What action will be taken when an MPLS router receives a frame with a label that does not exist in the LFIB?

A.

The frame will be flooded.

B.

The frame will be discarded.

C.

The frame will be fragmented.

Click on the exhibit below.

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

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.

What needs to be configured in a VPLS in order to forward customer STP BPDUs transparently?

A.

Spanning tree must be enabled within the VPLS.

B.

Spanning tree BPDUs must be untagged.

C.

Spanning tree BPDUs must be tagged.

D.

Spanning tree must be disabled within the VPLS.

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

A.

TRUE

B.

FALSE

The service-mtu of a VPLS using MPLS encapsulation is set to 9100. What is the minimum MTU value that can be set for the network port if fast re-route facility mode is used on the SDP LSP?

A.

9100

B.

9104

C.

9108

D.

9122

E.

9126

Which of the following statements about a management VPLS are true? (Choose 2)

A.

A management VPLS carries customer traffic over the non-blocking spoke-SDP

B.

A VPLS service must be defined as a management VPLS upon creation to take on the role of a management VPLS

C.

The state of a spoke-SDP within a user VPLS will take on the state of the spoke-sdp within the management VPLS.

D.

The management VPLS must be created before the user VPLS.

After the "disable-learning" command has been executed at the VPLS level, a new client device originates a frame. What is the result?

A.

If the MAC address of this new client device does not reach the upper limit of the configured total number of MAC addresses allowed in the VPLS forwarding database, then the new MAC address will be stored.

B.

The new source MAC addresses will not be entered in the VPLS service forwarding database.

C.

New local source MAC addresses will not be entered in the VPLS service forwarding database, but new remote MAC addresses would continue to be entered.

D.

New remote source MAC addresses will not be entered in the VPLS services forwarding database, but new local MAC addresses would continue to be entered.

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.

A LAG is configured with LACP passive mode enabled. When will LACP packets be sent?

A.

On initialization and then every hello-interval.

B.

Only after receiving LACP packets.

C.

Every 1 second.

D.

Never.

Which service component in the data plane uniquely identifies a VPLS to the far end PE node?

A.

SDP id

B.

Service ID

C.

VC Label

D.

Tunnel Label

E.

Customer id

What is the result of initiating an oam mac-ping to an unknown unicast MAC address in a VPLS instance?

A.

The oam mac-ping will fail. The MAC address must be known in the local FDB to be successful.

B.

The request will be flooded and the only response will come from the PE node that has learned the specified MAC address on a local SAP.

C.

The request will be flooded and the CE device with the corresponding MAC will reply.

D.

All nodes will reply because the oam mac-ping is flooded.