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Questions # 1:

Which of the following describes 6PE?

Options:

P routers run IPv4 only. PE routers run IPv4 only and exchange IPv6 routes using MP-BGP.

P routers run IPv4 only. PE routers run both IPv4 and IPv6 and exchange IPv6 routes using MP-BGP.

P routers run IPv6 only. PE routers run both IPv4 and IPv6 and exchange IPv4 routes using MP-BGP.

P routers run IPv6 only. PE routers run IPv6 only and exchange IPv4 routes using MP-BGP.

Questions # 2:

Which of the following statements are TRUE about configuring a SDP between an IES and a VPLS? (Choose 2)

Options:

The SDP must be a mesh

The SDP must be a spoke.

Once the SDP is configured on both PE routers, both the services will be operationally up without further configuration changes.

The Layer 2 MTUs must match between the IES and the VPLS

The Layer 2 MTU must be 14 bytes smaller on the VPLS than it is on the IES.

Questions # 3:

Which of the following best describes a VPLS?

Options:

Layer 3 direct Internet access service

Layer 2 point-to-point service

Layer 2 multipoint-to-multipoint service

Layer 3 IP multipoint-to-multipoint VPN service

Questions # 4:

Which of the following about CAC is FALSE?

Options:

CAC is used when the LSP path has not been computed by CSPF.

CAC is used when the LSP path has been computed by CSPF.

CAC is used to perform a bandwidth check on each egress interface of the downstream router.

CAC is used to perform a bandwidth check based on the router's LSDB.

Questions # 5:

Which of the following about Fast Reroute node protection tunnels is FALSE?

Options:

Node protection tunnels detour around a failed next downstream router.

Node protection tunnels can only be requested for a primary LSP path.

Node protection tunnels are only used by one-to-one Fast Reroute.

Link protection tunnels are established if a router is unable to establish node protection tunnels.

Questions # 6:

Which of the following about Link TLVs found inside Type 10 Opaque LSAs is FALSE?

Options:

Link TLVs are used to advertise administrative group information.

Link TLVs are exchanged once RSVP is enabled on the interfaces.

Link TLVs are used to advertise router-IDs.

Link TLVs are used to advertise bandwidth information.

Questions # 7:

Which of the following regarding MPLS encapsulation for VPRN services is TRUE?

Options:

The customer's Layer 3 header is removed at the iLER.

The customer's Layer 2 header is removed at the iLER.

The customer's Layer 3 header is removed at the eLER.

The customer's Layer 2 header is removed at the eLER.

Questions # 8:

Which of the following encapsulation types on an Ethernet port support the provisioning of multiple SAPs? (Choose 2)

Questions # 9:

What action does a router perform when it looks up the label of an incoming packet in its LFIB and sees that the LFIB maps to an egress label of 3?

Options:

It requests a new label from the peer that provided this label.

It pops the label.

It pushes an additional label onto the label stack.

It signals a new label to the peer that sent the packet.

Questions # 10:

Which of the following commands is used to enable an Epipe service?

Options:

config>service# epipe service-id enable

config>service# vpws service-id enable

config>service# service-id no shutdown

config>port# port-id no shutdown

config>service# epipe service-id no shutdown

Questions # 11:

Click on the exhibit.

Question # 11

All links have 1 Gbps unreserved bandwidth initially and all LSPs have the least-fill feature enabled. After the two LSPs have been signaled as shown, two additional LSPs are configured.

LSP-3 is signaled first with 50Mbps reserved. LSP-4 is signaled after with 400Mbps reserved.

Which paths will CSPF choose for LSP-3 and LSP-4?

Options:

Both LSP-3 and LSP-4 take R1-R2-R4-R6.

Both LSP-3 and LSP-4 take R1-R3-R5-R6.

LSP-3 takes R1-R3-R5-R6 and LSP-4 takes R1-R2-R4-R6.

LSP-3 takes R1-R2-R4-R6 and LSP-4 takes R1-R3-R5-R6.

CSPF randomly chooses one of the equal cost paths for the two LSPs.

Questions # 12:

Which of the following devices inspects the MPLS header in the received packet, and exchanges it for a new MPLS header?

Questions # 13:

Which mode does the following statement describe? An LSR will advertise a label mapping immediately, without waiting for a label mapping from the FEC's next-hop.

Options:

Liberal label retention mode

Conservative label retention mode

Ordered control mode

Independent control mode

Questions # 14:

Which VPWS service would be used to create a point-to-point Frame Relay service?

Questions # 15:

Which of the following statements best describes the flooding of traffic on a PE when traffic is received on a SAP?

Options:

Traffic is flooded to all SAPs in the service.

Traffic is flooded to all SAPs and spoke SDPs in the service.

Traffic is flooded to all SAPs and mesh SDPs in the service.

Traffic is flooded to all SAPs, spoke SDPs, and mesh SDPs in the service.

The traffic is not flooded.

Questions # 16:

Which routing protocol cannot be run over an Ipipe?

Options:

OSPF

RIP

BGP

IS-IS

Questions # 17:

Click on the exhibit.

Question # 17

An LSP traverses R1-R2-R4-R6 and facility fast reroute with link protection is enabled. All links have the same cost. Which of the following about PLRs and MPs is TRUE?

Options:

R1, R2, and R4 can be PLRs; R6 is the MP.

R1, R2, and R4 can be PLRs; R2, R4, and R6 are MPs.

R1, R2, R3, R4, and R5 can be PLRs; R6 is the MP.

R1, R2, R3. R4, and R5 can be PLRs; R2, R4, and R6 is the MP.

Questions # 18:

Which of the following statements best describes an FDB used in a VPLS service?

Options:

A VPLS service does not use an FDB.

An FDB is maintained on the PE router to track MAC addresses learned from all traffic through the router.

An FDB is maintained on the PE router to track MAC addresses learned from all VPLS services on the router.

A separate FDB is maintained for each VPLS service to track MAC addresses learned from each service.

For each VPLS service, two FDBs are maintained to track MAC addresses; one for unicast traffic and one for multicast and broadcast traffic.

Questions # 19:

Click on the exhibit.

Question # 19

A fully loose LSP "toR6" is configured. All links have the same cost and all routers are Alcatel-Lucent 7750 SRs. The LSP currently traverses the path R1-R2-R7-R8-R4-R6 and the resignal timer is enabled. Which of the following about this LSP is FALSE?

Options:

The LSP will switchover to another path if a failure occurs.

The LSP will switchover to a better path as soon as it is available.

CSPF must be enabled for this LSP to attempt to find a better path.

The LSP will switchover to a better path in a MBB fashion.

Questions # 20:

Click on the exhibit.

Question # 20

An LDP tunnel is established on R1-R2-R4-R6 because the link between routers R3 and R6 is down. With the LDP-IGP Sync feature enabled, what happens immediately after the link is restored?