Question 1

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.

Answer: C

Question 2

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

Options :

A : TRUE

B : FALSE

Answer: B

Question 3

What is the MTU impact on the SDP path-mtu if fast reroute facilities-mode is implemented on the LSP?

Options :

A : There will be no impact on the path-mtu

B : The path-mtu will decrease by4 bytes.

C : The path-mtu will increase by 4 bytes.

D : The path-mtu will decrease by 8 bytes

E : The path-mtu will increase by 8 bytes.

Answer: B

Question 4

Consider a large metro-to-metro VPLS network interconnected with a mesh of mesh-SDPs. Which of the following statements does NOT apply to this situation?

Options :

A : Bandwidth and replication inefficiency can occur on inter-metro links if there is a lot of multicast traffic

B : The number of control sessions grows exponentially in a fully meshed network

C : Spanning-tree is required to prevent loops when using mesh SDPs on the inter-metro links.

D : Network touches increase with each node added to the mesh.

Answer: C

Question 5

Which of the following needs to be considered when designing Ethernet networks with redundancy?

Options :

A : Processing the TTL takes extra time

B : MAC learning rate is doubled.

C : FDB size is doubled

D : Requires a protocol to remove loops

Answer: D

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