Exam Code: 4A0-104
Exam Name: Alcatel-Lucent Services Architecture
Identify the correct labels for the Martini encapsulation diagram above.
A. XX Transport Label, YY VC Label, ZZ Control Word
B. XX VC Label, YY Transport Label, ZZ Control Word
C. XX VC Label, YY Control Word, ZZ Transport Label
D. XX Control Word, YY VC Label, ZZ Transport Label
E. XX Control Word, YY Transport Label, ZZ VC Label
The diagram above shows the MPLS packet format for transporting L2 services over an MPLS transport tunnel. What encapsulation method is represented by ZZZZZ above?
Point to multipoint MPLS Layer 2 VPN connectivity and encapsulation is described most accurately by which of the following?
A. RFC 4448: Encapsulation methods for transport of Ethernet over MPLS.
B. RFC3201: Definitions of Managed Objects for Circuit to Interface Translation.
C. RFC 4762: VPLS over LDP Signaling
D. RFC 4364 BGP/MPLS Layer-3 VPN
The diagram above shows the MPLS packet format for transporting L2 services over an MPLS transport tunnel. In the diagram what does "YYYYY" represent?
A. Service VC label
B. Control word
C. Inner label
D. TCP/IP header
Martini encapsulation typically makes use of the control word in which of the following situations? (Choose two)
B. ATM AAL5
E. Frame Relay
The diagram above shows the MPLS packet format for transporting L2 services over an MPLS transport tunnel. What does "XXXXX" represent in the diagram?
A. Control word
B. Outer label
C. Inner Transport label
D. Service VC label
Nodes that are not directly connected by a physical link cannot participate in a VPN.
Which of the following SAP encapsulations supports only a single service on a port?
Which of the following are considered to be services on the Alcatel-Lucent 7750 Service Router? (Choose all that apply)
Which CLI command on the Alcatel-Lucent 7750 SR is needed to obtain the following output?
A. show service description
B. show service id
C. show service customer
D. show service information
Which of the following statements is true?
A. An SDP is used to transport customer traffic between two nodes over a transport tunnel
B. A distributed Epipe service needs one SAP and one SDP on each node
C. For a service to be bi-directional, a SDP must be provisioned on each node participating in the service
D. All of the above
There can only be one SAP per access port?
Which of the following services does not make use of an SDP? (Choose all that apply)
A. Local Epipe
B. Distributed Epipe
C. Local mirroring
D. Distributed mirroring
Fill in the blank for this next sentence. Flooded traffic received on a ______________is replicated on all other "ports" (other spoke SDP, mesh SDPs or SAPs) and not transmitted on the port it was received.
A. Spoke SDP
B. Mesh SDP
C. Either (a) or (b) will make this sentence true
D. Neither (a) nor (b) will make this sentence true
Which of the following statements is false?
A. A SAP is the subscriber-side entry and exit point for a service.
B. A SAP is local to the router.
C. Depending on the encapsulation used, an Ethernet port or POS channel can have more than one SAP associated with it.
D. Access interfaces can only be created on ports or channels that are configured as access ports in the physical port configurations.
E. A SAP is unidirectional and can be configured as either ingress or egress.
Which of the following statements about the VC label are correct? (Choose two)
A. VC labels are used to encapsulate and identify customer traffic belonging to a particular service
B. The VC label is the inner label in a layer-2 VPN service.
C. The VC label is used to set up label switched paths (LSP) that can carry customer data across the network
D. Service tunnels are cross connected with transport tunnels using the VC label
For a mesh SDP which ID is used as the VC-ID by default?
A. Customer ID
B. Service ID
C. SDP ID
D. SAP ID
E. LSP ID
Which of the following is a default behavior on an Alcatel-Lucent 7750 SR? (Choose all that apply)
A. A customer id of 1 always exists
B. The VC label for an Epipe service equals the service ID
C. RSVP is enabled by default when enabling MPLS
D. The service-id equals the SDP ID
Select the correct statements about an SDP. (Choose two).
A. An SDP is a logical way of directing traffic from one Alcatel-Lucent 7750 SR router to another through a uni-directional service tunnel and transported by a LSP
B. An SDP terminates on a demultiplexer where a forwarding decision is made
C. An SDP is the customer-side entry and exit point for a service
D. An SDP cannot transport traffic between two Alcatel-Lucent 7750 SRs from both Epipe and Apipe services.
The following question relates to the set of commands below.
A:PE3# configure service sdp 5 mpls create
A:PE3>config>service>sdp$ far-end 10.10.10.2
A:PE3>config>service>sdp$ lsp lsp-to-PE2
A:PE3>config>service>sdp$ signaling tldp
A:PE3>config>service>sdp$ no shut
Each of these commands was entered in the CLI in the order shown above but one of these commands could have been omitted with no negative effects. That is, which of the commands shown above is optional for this configuration?
A. A:PE3# configure service sdp 5 mpls create
B. A:PE3>config>service>sdp$ far-end 10.10.10.2
C. A:PE3>config>service>sdp$ lsp lsp-to-PE2
D. A:PE3>config>service>sdp$ signaling tldp
E. A:PE3>config>service>sdp$ no shut
F. None of the above are optional. All are required.
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