Pass the Nokia SRC Certification 4A0-105 Questions and answers with CertsForce

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Viewing questions 31-40 out of questions
Questions # 31:

Which of the following statements is false?

Options:

A.

VPLS is a bridged LAN service.


B.

VPLS provides L2 VPN services to CEs.


C.

VPLS is a point-to-point service where CEs are presented with point-to-point virtual circuits.


D.

CEs that are members of the same VPLS service instance communicate with each other as if they are connected via a bridged LAN.


Questions # 32:

What is the default remote-age timer of a B-VPLS?

Options:

A.

The same timer is used in all VPLS types.


B.

Higher than the default timer of an I-VPLS.


C.

Lower than the default timer of an l-VPLS.


D.

The same timer as an l-VPLS.


Questions # 33:

When ports configured with IEEE 802.3ah EFM are operationally down, what must the device do before declaring the ports are up?

Options:

A.

The device will try to force the other side up using the evaluating flag in the PDU.


B.

The device will wait for the trasmit-interval of 5 before trying to rediscover the neighbor.


C.

The device will detect the port change and will wait for normal operation mode.


D.

The device will detect the port change and revert to discovery mode.


Questions # 34:

Which of the following OAM tools can be used as a VPLS topology discovery mechanism (Choose 2)?

Options:

A.

oam mac-ping


B.

oam mac-populate


C.

oamsvc-ping


D.

oam mac-trace


Questions # 35:

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

Options:

A.

TRUE


B.

FALSE


Questions # 36:

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

Options:

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.


Questions # 37:

Which function of the IEEE 802.1 ag is used for responding to CFM messages but not originating them?

Options:

A.

MEP


B.

MAP


C.

MIP


D.

MUP


Questions # 38:

The command "send flush-on-failure" has been enabled within a VPLS instance. What does the PE do upon detection of a SAP failure within the VPLS?

Options:

A.

The PE sends an LDP control message that flushes all FDB entries in the VPLS instance.


B.

The PE sends an LDP control message that flushes all FDB entries in the VPLS instance that are associated with the PE that detected the failure.


C.

The PE flushes it's local FDB only.


D.

The PE sends an oam service message that flushes all FDB entries in the VPLS instance.


Questions # 39:

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

Options:

A.

RSTP


B.

Dynamic-cost


C.

LACP active


D.

Nothing, There are no loops in LAGs


Questions # 40:

Which of the following describes the setting of the l-SID on the Nokia 7750 SR?

Options:

A.

The I-SID is set to 0 by default and is only used for interop purposes. The receiving PE uses the service label to determine the I-VPLS.


B.

There is no default value. The I-SID must always be explicitly configured


C.

The I-SID is set to the service-id, unless the service-id is larger than a 24 bit value. In this case the I-SID must be explicitly configured.


D.

The I-SID is always set to the service-id by default.


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