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What is PBB also known as?

A.

H-VPLS

B.

IEEE 802.lag

C.

MAC aggregation

D.

MAC-in-MAC

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

A.

TRUE

B.

FALSE

What is the default fdb size for a VPLS service?

A.

100

B.

1

C.

25

D.

250

Which of the following statements about Spanning Tree Protocol is true?

A.

The switch with the lowest priority becomes the root.

B.

The switch with the highest priority becomes the root.

C.

The switch with the lowest MAC address always becomes the root.

D.

The switch with the highest MAC address always becomes the root.

Click on the exhibit below.

Assume there are two VPLS services configured on the MDU. How could load-balancing be achieved when using Active/Standby pseudowires?

A.

This cannot be done.

B.

Each VPLS will use the same pair of SDP's with the same endpoint configured with the option "load-balancing 2".

C.

Each VPLS will need their own pair of spoke-SDP's configured. The spoke-sdp's that are to be active should be configured with the option "precedence primary".

D.

Under the end-point configuration, enable load-balancing 2 and the MDU will load balance automatically.

Which of the following are required for an operational mesh-sdp binding for bidirectional traffic when signaling is enabled within the SDP? (Choose 3)

A.

LDP must be enabled.

B.

RSVP must be enabled.

C.

An SDP must be configured on the far-end.

D.

Service MTU must match.

E.

SDP ID must match.

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.

Which of the following SAP encapsulations supports only one service on a port?

A.

Dot1Q

B.

Null

C.

Q-in-Q

D.

Ipcp

E.

BCP

IEEE 802.3ah frames must be untagged.

A.

TRUE

B.

FALSE

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.

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

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

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.

The FDB has learned 2 MAC addresses. The first is from a device accessible via a locality defined SAP, the second is from a device accessible via an SDP. Both MAC addresses were learned at the exact same time. If all traffic from these hosts stops at the same time, which address will age out first from the FDB based on default settings?

A.

MAC learned via SAP

B.

MAC learned via SDP

C.

There is not enough information to determine

D.

Both will timeout at the same time

Click on the exhibit below.

The service MTU on PE-A is 1514 bytes and the service MTU on PE-C is 1518 bytes. What is the status of the mesh-sdp between PE-A and PE-C?

A.

The mesh-sdp will be up.

B.

The mesh-sdp will be down.

C.

The mesh-sdp will only be up on PE-A.

D.

The mesh-sdp will only be up on PE-C.

Redundant spoke-SDPs are used between 2 Metro networks for redundancy. How can load balancing be achieved across the redundant spoke-SDPs?

A.

A single management VPLS using RSTP can be used to block different SDPs for different VPLS services.

B.

A single management VPLS using 802.1D-2004 can be used to block different SDPs for different VPLS services

C.

There is no way to have load balancing across redundant spoke-SDPs.

D.

Two management VPLS using RSTP can be used to block different SDPs for different VPLS services.