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Click on the exhibit.

A fully loose LSP "toR6" is enabled with FRR protection. All links have the same cost. After the link between R2 and R4 goes down, FRR protection repairs the LSP and traffic traverses on R1-R2-R7-R8-R4-R6. Which of the following about this CSPF-enabled LSP on an Alcatel-Lucent 7750 SR is TRUE?

A.

The LSP will stay on the current path indefinitely unless another failure occurs.

B.

The LSP will stay on the current path until the resignal timer expires.

C.

The LSP will switchover to R1-R2-R3-R5-R6 after the resignal timer expires.

D.

The LSP will switchover to R1-R3-R5-R6 after the retry timer expires.

Which of the following describes a service on the Alcatel-Lucent 7750 SR?

A.

A logical entity that provides a uniform, end-to-end configuration, management and billing model for provisioning either Internet or VPN connectivity.

B.

Provides connectivity between customer access points.

C.

A service that can either be local or distributed.

D.

All of the above

Click on the exhibit.

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

A.

R3 and R5 become DMPs; R6 becomes MP.

B.

R3 and R5 become DMPs; R4 becomes MP.

C.

R3, R5, and R6 become DMPs; R4 becomes MP.

D.

R1, R3, and R5 becomes DMPs; R4 and R6 become MPs.

Click on the exhibit.

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?

A.

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

B.

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

C.

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

D.

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

E.

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

Click on the exhibit.

Router R2 advertises an OSPF summary route 10.10.10.0/24 into Area 1. Router R3 receives labels for individual FECs 10.10.10.2/32 and 10.10.10.4/32. These two FECs are installed in router R3's LIB but not in the LFIB. What needs to be done on router R3 to install these labels into its LFIB?

A.

Disable route summarization on router R3.

B.

Enable LDP aggregate prefix match.

C.

Create an import policy to accept 10.10.10.2/32 and 10.10.10.4/32.

D.

Disable LDP exact match on 10.10.10.2/32 and 10.10.10.4/32.

Port 1/1/1 has been configured as an access port with encapsulation dot1q on an Alcatel-Lucent 7750 SR. Which of the following statements are TRUE? (Choose 2)

A.

The SAP 1/1/1 will forward all traffic transparently.

B.

The SAP 1/1/1:0.* will forward all untagged traffic and traffic tagged with VLAN 0.

C.

The SAP 1/1/1:* will forward untagged traffic but not tagged traffic.

D.

TheSAP1/1/1:400 will forward customer traffic tagged with VLAN 400

E.

The SAP 1/1/1:0 will forward untagged traffic and traffic tagged with VLAN 0

Which of the following fields does NOT appear in the MPLS label header?

A.

Label

B.

Frame check sequence

C.

Traffic Class (previously called Experimental)

D.

Time To live

E.

Bottom of stack bit

What distinguishes a VPLS service from a VPWS service?

A.

VPLS supports point-to-point connections.

B.

VPLS supports multipoint-to-multipoint connections

C.

VPLS supports a distributed service

D.

VPLS supports a local service on a single node.

Click on the exhibit.

Which of the following about the bypass tunnel is FALSE?

A.

The router 10.10.10.1 is a PLR providing node protection for the router 10.10.10.3.

B.

One-to-one fast reroute protection is requested by an LSP.

C.

The bypass-link tunnel is used to avoid the link with the egress interface address 10.3.4.4.

D.

The bypass-node tunnel is used to avoid the next-hop downstream router 10.10.10.3.

Which of the following is NOT a characteristic of MPLS?

A.

It provides the ability to establish connection oriented paths over a connectionless IP network.

B.

It provides a mechanism to engineer network traffic patterns independently of IP routing tables.

C.

It will work over most physical layer protocols.

D.

It can use GRE tunnels to transport data from many different protocols over an IP network.

Which of the following regarding the location of an MPLS label is FALSE?

A.

The MPLS label value may be carried in an ATM header.

B.

The MPLS label value may be carried in a shim header.

C.

The MPLS label value may be carried in an OSPF header.

D.

The MPLS label value may be carried in a Frame Relay header.

A mesh SDP is used to create an Fpipe service.

A.

TRUE

B.

FALSE

Click on the exhibit.

This policy is applied as an LDP export policy. In addition to the FECs learned from its neighbors, which FECs will appear in this router's LIB?

A.

All FECs with a prefix of 192.168.1.0/30.

B.

Local FECs with a prefix of 192.168.1.0/30.

C.

All FECs excluding 192.168.1.0/30.

D.

Local FECs excluding 192.168.1.0/30.

Click on the exhibit.

Initially, all links along the path R1-R2-R4-R6 have 400Mbps unreserved bandwidth and all links along the path R1-R3-R5-R6 have 800Mbps unreserved bandwidth. Shared Explicit reservation style is used and Make-Before-Break is enabled. Both fully loose LSPs have been signaled as shown. Later, the configured bandwidth for LSP-1 is changed to 400Mbps. Which of the following is TRUE?

A.

After a new path for LSP-1 is established on R1-R3-R5-R6, the old path is torn down.

B.

After the old path for LSP-1 is torn down, the new path is established on R1-R3-R5-R6.

C.

LSP-1 will stay on R1-R2-R4-R6 because there is enough bandwidth on the existing path.

D.

LSP-1 will be torn down because CSPF fails to find a new path.

Click on the exhibit.

An LDP tunnel is established on router R1 towards router R6. The link between routers R2 and R4 goes down. What will happen to the MPLS data traffic to router R6 IMMEDIATELY after the link goes down?

A.

MPLS data traffic will be discarded until the IGP finds a new next-hop to router R3.

B.

MPLS data traffic will be discarded unless the LDP tunnel has a standby secondary path.

C.

MPLS data traffic will not be discarded because router R1 received labels from both next-hops, routers R2 and R3.

D.

MPLS data traffic will not be discarded because of fast reroute capability on router R2.

Click on the exhibit.

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?

A.

A new LDP session is established on R1-R3-R6 as soon as the FIB is updated.

B.

The LDP session remains unchanged until the existing path R1-R2-R4-R6 goes down.

C.

A new LDP session is established on R1-R3-R6 as soon as router R1 receives a new label for router R6.

D.

The LDP session remains unchanged until router R3 stops advertising the maximum metric for the link to router R6.

Click on the exhibit button below.

If CE1 and PE1 use BGP to exchange routing information and CE2 and PE2 use static routing to forward traffic to and from the VPRN, which of the following statements is considered TRUE?

A.

An export policy is required on PE1 to advertise routes to CE1.

B.

An export policy is not required on PE2 to advertise routes to CE2.

C.

An export policy is not required to advertise routes between PE routers

D.

All of the above statements are true

E.

All of the above statements are false

How many SAPs can be configured on a port configured with NULL encapsulation?

A.

1

B.

4096

C.

None. This encapsulation is not supported.

D.

The number is limited only by the capacity of the router

The terms "customer" and "service" are used synonymously when describing a service implementation on the Alcatel-Lucent 7750 SR.

A.

TRUE

B.

FALSE

Which of the following statements best describes the purpose of an MP-BGP in a VPRN?

A.

Routes from different customers with the same IPv4 address prefix are treated as equivalents by MP-BGP.

B.

Alcatel-Lucent 7750 SR routers support MP-BGP for VPN label signaling in a VPRN service only if LDP is used for LSP signaling.

C.

The multi-protocol nature of MP-BGP allows VPRN routes to be distributed within the provider core network as IPv4 routes.

D.

MP-BGP is an enhanced version of BGP that can carry a service label, a tranpot label, and customer route prefixes.

E.

None of the above statements describe the use of an MP-BGP in a VPRN.

F.

All of the above statements describe the use of an MP-BGP in a VPRN.