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Viewing questions 61-75 out of questions
Questions # 61:

Port 1/1/1 has been configured as an access port with QinQ encapsulation. Which of the following three statements are true for ingress traffic assuming default configuration? (Choose 3)

Options:
A.

sap 1/1/1:*.0 is a valid sap id.

B.

sap 1/1/1:100* will accept frames with a single tag of 100.

C.

sap 1/1/1:200* will strip the top tag of 200 and the bottom tag will be transparently passed.

D.

sap 1/1/1:0* will accept all untagged frames.

E.

sap 1/1/1:0* will accept any tagged frames.

Questions # 62:

Click on the exhibit below.

Question # 62

Assume PE-1 has a mesh-sdp configured to every PE node in both Metro networks. What could be done to prevent the bandwidth replication between Metro 1 and Metro 2?

Options:
A.

PE-1 must be configured with mesh-SDPs to every node receiving the multicast traffic. There is no way to reduce the replication or bandwidth.

B.

PE nodes in Metro 1 could be configured with mesh-SDPs. PE nodes in Metro 2 would be configured with mesh-SDPs. However, the connection between Metro networks (PE-2 to PE-6) can be configured with a spoke-sdp. This would reduce the replication and bandwidth used on the link between Metro networks. This also reduces the replication required by PE-1.

C.

PE-1 can be configured with spoke-SDPs to every PE node in both Metro networks. This will reduce the bandwidth and replication within the network.

D.

PE nodes in Metro 1 could be configured with spoke-SDPs. PE nodes in Metro 2 would be configured with spoke-SDPs. However, the connection between Metro networks (PE-2 to PE-6) can be configured with a mesh-sdp. This would reduce the replication and bandwidth used on the link between Metro networks. This also reduces the replication required by PE-1.

Questions # 63:

Click on the exhibit below.

Question # 63

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

Options:
A.

VLANs 1-4094

B.

VLAN 0

C.

There is not enough information provided

D.

None, this is an invalid configuration

Questions # 64:

What are the limitations of a traditional layer 2 switch? (Choose 3}

Options:
A.

Isolates collision domains.

B.

Requires layer 2 loop prevention.

C.

Slow response to topology changes.

D.

Limited to 4094 vlans per switch.

E.

Increased flooding.

Questions # 65:

Click on the exhibit below.

Question # 65

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 # 66:

Assuming TLDP and RSVP are both being used in an MPLS network core which of the following statements is true?

Options:
A.

TLDP is used to create the inner label, RSVP is used to create the outer label.

B.

TLDP is used to create the outer label, RSVP is used to create the inner label.

C.

TLDP and RSVP cannot be used in the same network since they both provide the same label.

D.

When RSVP is used, TLDP must be disabled and static vc labels should be used.

E.

TLDP and RSVP can be used to create either labels based on how they are configured.

Questions # 67:

The operation of a VPLS can be best described by which of the following statements?

Options:
A.

A frame should be sent to the PE that connects to the target site whenever possible.

B.

A frame should be flooded as little as possible.

C.

Customer frames should be switched based on the destination MAC address.

D.

All of the above.

E.

Only (a) and (b) are true.

Questions # 68:

Which of the following describes the setting of the l-SID on the Alcatel-Lucent 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.

Questions # 69:

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

Options:
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.

Questions # 70:

What of the following is a key benefit of Active/Standby pseudowires?

Options:
A.

The MDU does not need to support MPLS.

B.

Can be used in ring networks of 4 or more nodes

C.

Does not require the use of a layer 2 loop prevention protocol such as RSTP

D.

The MDU does not have to be aware of the active/standby configuration

Questions # 71:

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

Options:
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.

Questions # 72:

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 # 73:

What is the maximum number of VLANs supported on a traditional Layer 2 switch?

Options:
A.

4094

B.

8190

C.

32768

D.

131071

Questions # 74:

Click on the exhibit below.

Question # 74

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

Options:
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.

Questions # 75:

Which of the following statements relating to VPLS is false?

Options:
A.

A VPLS is a multipoint Layer 2 service.

B.

A VPLS allows multiple customer sites to be connected in a single bridged domain.

C.

A VPLS on a single node requires a SDP.

D.

With an IP/MPLS infrastructure, service providers can provide multiple VPLS services over a common IP/MPLS infrastructure.

E.

The VPLS switches traffic based on MAC address associated to the appropriate SAP.

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Viewing questions 61-75 out of questions