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单选题
Where is the MPLS label imposed？（）
A
after the Layer 3 header and before the Layer 2 payload
B
after the Layer 3 header and before the Layer 4 payload
C
after the Layer 2 header and before the Layer 1 payload
D
after the Layer 1 header and before the Layer 2 payload
E
after the Layer 2 header and before the Layer 3 payload
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更多 “单选题Where is the MPLS label imposed？（）A after the Layer 3 header and before the Layer 2 payloadB after the Layer 3 header and before the Layer 4 payloadC after the Layer 2 header and before the Layer 1 payloadD after the Layer 1 header and before the Layer 2 payloadE after the Layer 2 header and before the Layer 3 payload” 相关考题
考题
在MPLS中,LDP的具体解释()。
A.Label Data PairB.Label Distribution PairC.Label Distribution ProtocolD.Label Data Protocol
考题
Why is it appropriate to use conditional label advertising when deploying MPLS? ()
A. to make CEF tables smallerB. to enable label switching on the frame mode interfaceC. to restrict MPLS availability to predefined time periodsD. to restrict label switching to a limited number of networksE. to restrict end users from seeing the routers in the MPLS network
考题
Why is it appropriate to use conditional label advertising when deploying MPLS? （）A、to make CEF tables smallerB、to enable label switching on the frame mode interfaceC、to restrict MPLS availability to predefined time periodsD、to restrict label switching to a limited number of networksE、to restrict end users from seeing the routers in the MPLS network
考题
There is MPLS VPN traffic traversing through a TE intermediate router. What is the MPLS packet labelstack sequence （from outer to inner） for the VPN traffic on this router？（）A、TE label， IGP label， VPN labelB、IGP label， TE label， VPN labelC、TE label， VPN label， IGP labelD、VPN label， IGP label， TE labelE、IGP label， VPN label， TE label
考题
In the context of MPLS，what is the correct action to be performed when an aggregate label is received ？（）A、It adds the VPN label into the top label in the MPLS label stackB、It replaces the top label in the MPLS label stack with a VPN label and propagatesC、It replaces the bottom label in the MPLS label stack with a VPN label and propagatesD、It removes the top label in the MPLS label stack and does a Layer 3 lookup on underlying IP packetsE、None of above
考题
As a network administrator, you are required to deploy MPLS technology. During the deployment, it is recommended to apply conditional label advertising. What is most probably the reason for that?（）A、to enable label switching on the frame mode interfaceB、to restrict MPLS availability to predefined time periodsC、to restrict end users from seeing the routers in the MPLS networkD、to restrict label switching to a limited number of networks
考题
Using more than one label on a single packet is required in what context？（）A、MPLS TEB、MPLS VPNC、When CEF switching and Label switching is doneD、In all the above circumstances
考题
What is the action of "pop" in the context of MPLS switching？（）A、It removes the top label in the MPLS label stack.B、It adds a top label in MPLS label stack.C、It replaces the top label in the MPLS label stack with another value.D、It replaces the top label in the MPLS label stack with a set of labels.E、None of above.
考题
在MPLS中，LDP的具体解释（）。A、Label Data PairB、Label Distribution PairC、Label Distribution ProtocolD、Label Data Protocol
考题
What IOS commands display MPLS label mapping on an LSR？（）A、Show mpls forwading-tableB、Show mpls ldp bindingsC、Show mpls ldp neighbor detailD、Show mpls ldp parametersE、Show mpls ldp discovery
考题
Which four services use the inner labels of an MPLS label stack？ （）A、MPLS VPNB、switching path in MPLS coreC、Cisco MPLS Traffic Engineering and Fast RerouteD、MPLS over ATME、VPN over Traffic Engineering coreF、any transport over MPLS
考题
Where is the MPLS label imposed？（）A、after the Layer 3 header and before the Layer 2 payloadB、after the Layer 3 header and before the Layer 4 payloadC、after the Layer 2 header and before the Layer 1 payloadD、after the Layer 1 header and before the Layer 2 payloadE、after the Layer 2 header and before the Layer 3 payload
考题
In Any Transport over MPLS （AtoM） Control word is an optional 4-byte field used in the pseudowire packet.The control word carries generic and Layer 2 payload-specific information to emulate L2 packets correctly.In pseudowire packet， where is this Control Word inserted？（）A、Inserted between the MPLS label stack and the Layer 3 payloadB、Inserted between the MPLS label stack and the Layer 3 HeaderC、Inserted between the MPLS label stack and the Layer 2 payloadD、Inserted between the MPLS label stack and the Layer 2 header
考题
Multi Protocol Label Switching （MPLS） is a data-carrying mechanism that belongs to the family of packet-switched networks. For an MPLS label， if the stack bit is set to1， which option is true？（）A、The stack bit will only be used when LDP is the label distribution protocolB、The label is the last entry in the label stack.C、The stack bit is for Cisco implementations exclusively and will only be used when TDP is the label distribution protocol.D、The stack bit is reserved for future use.
考题
MPLS label mapping on an LSR is displayed by which IOS command？（）A、Show mpls Idp neighbor detailB、Show mpls Idp bindingsC、Show mpls Idp parametersD、Show mpls Idp discovery
考题
在MPLS中，LSP指的是：（）。A、Label Selection PairB、Label Switched PathC、Lighweight Signaling ProtocolD、Large Sampling Path
考题
单选题Which option describes the incorrect usage of the Label Distribution method？（）A
LDP is primarily used in internal networks of MPLS-VPN providers.B
MP-BGP is used for label distribution for VPN customer routes.C
Directed LDP is used for label distribution in L2-VPN Attachement Circuits.D
MP-BGP is used for label distribution in MPLS Traffic Engineered networks.
考题
单选题There is MPLS VPN traffic traversing through a TE intermediate router. What is the MPLS packet labelstack sequence （from outer to inner） for the VPN traffic on this router？（）A
TE label， IGP label， VPN labelB
IGP label， TE label， VPN labelC
TE label， VPN label， IGP labelD
VPN label， IGP label， TE labelE
IGP label， VPN label， TE label
考题
单选题What IOS commands display MPLS label mapping on an LSR？（）A
Show mpls forwading-tableB
Show mpls ldp bindingsC
Show mpls ldp neighbor detailD
Show mpls ldp parametersE
Show mpls ldp discovery
考题
单选题Why is it appropriate to use conditional label advertising when deploying MPLS?（）A
to make CEF tables smallerB
to enable label switching on the frame mode interfaceC
to restrict MPLS availability to predefined time periodsD
to restrict label switching to a limited number of networksE
to restrict end users from seeing the routers in the MPLS network
考题
单选题As a network administrator, you are required to deploy MPLS technology. During the deployment, it is recommended to apply conditional label advertising. What is most probably the reason for that?（）A
to enable label switching on the frame mode interfaceB
to restrict MPLS availability to predefined time periodsC
to restrict end users from seeing the routers in the MPLS networkD
to restrict label switching to a limited number of networks
考题
单选题In a frame ，the MPLS label is imposed（）.A
After the Layer3 header and before Layer2 headerB
After the Layer2 header and before Layer3 headerC
Within the Layer 3 headerD
Before the layer 2 header
考题
单选题What is the action of "pop" in the context of MPLS switching？（）A
It removes the top label in the MPLS label stack.B
It adds a top label in MPLS label stack.C
It replaces the top label in the MPLS label stack with another value.D
It replaces the top label in the MPLS label stack with a set of labels.E
None of above.
考题
单选题In the context of MPLS，what is the correct action to be performed when an aggregate label is received ？（）A
It adds the VPN label into the top label in the MPLS label stackB
It replaces the top label in the MPLS label stack with a VPN label and propagatesC
It replaces the bottom label in the MPLS label stack with a VPN label and propagatesD
It removes the top label in the MPLS label stack and does a Layer 3 lookup on underlying IP packetsE
None of above
考题
单选题Multi Protocol Label Switching （MPLS） is a data-carrying mechanism that belongs to the family of packet-switched networks. For an MPLS label， if the stack bit is set to1， which option is true？（）A
The stack bit will only be used when LDP is the label distribution protocolB
The label is the last entry in the label stack.C
The stack bit is for Cisco implementations exclusively and will only be used when TDP is the label distribution protocol.D
The stack bit is reserved for future use.
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