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单选题
What is used as label in cell-based MPLS ？（）
A
VPI
B
VCI
C
VPI and VCI
D
Specific 4 bytes label
E
None of above
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更多 “单选题What is used as label in cell-based MPLS ？（）A VPIB VCIC VPI and VCID Specific 4 bytes labelE None of above” 相关考题
考题
An ERX Edge Router is operating in an MPLS network using interface label space.What is used to make a forwarding decision?()
A. EXP bitsB. VPI / VCIC. shim headerD. SNAP header
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
What is the label for MPLS over ATM？（）A、VPI 16B、DLCIC、VPI and VCID、circuit numberE、PVC and SVC
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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
What are the four fields in an MPLS label？（）A、versionB、experimentalC、labelD、protocolE、TTLF、bottom-of-stack indicato
考题
What are the "bound IP addresses" used for in LDP？（）A、For each such address and mask /32, one label binding is created.B、As the TCP endpoint, IP addresses are used by the LDP session.C、These addresses are used to find the label binding to put in the LFIB, by looking up these IP addresses in the routing table.D、These addresses are used for penultimate hop popping (PHP) when forwarding packets to the next router directly.
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
What is used as label in cell-based MPLS ？（）A、VPIB、VCIC、VPI and VCID、Specific 4 bytes labelE、None of above
考题
What protocol is used for Path Setup in MPLS traffic engineering？（）A、OSPFB、ISISC、BGPD、RSVPE、PIM
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
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
What are two purposes of the RSVP signaling protocol when configuring MPLS Label-Switched Paths (LSPs)? （）(Choose two.)A、to perform a label push operationB、to track the status of signaled LSPsC、to perform longest-match route lookupsD、to reserve resources, such as labels and path information
考题
单选题What protocol is used for Path Setup in MPLS traffic engineering？（）A
OSPFB
ISISC
BGPD
RSVPE
PIM
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What is the label for MPLS over ATM？（）A
VPI 16B
DLCIC
VPI and VCID
circuit numberE
PVC and SVC
考题
多选题What are the four fields in an MPLS label？（）AversionBexperimentalClabelDprotocolETTLFbottom-of-stack indicato
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An ERX Edge Router is operating in an MPLS network using interface label space.What is used to make a forwarding decision?（）A
EXP bitsB
VPI / VCIC
shim headerD
SNAP header
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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