What is used as label in cell-based MPLS ？（）A、VPIB、VCIC、VPI and VCID、Specific 4 bytes labelE、None of above
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
相关考题：
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
What term is used to describe the process where one frame is placed into a different type of frame?() A. FramingB. De-encapsulationC. EncapsulationD. De-framingE. None of the above
What is used to test a tank for oxygen content ________．A.Combustible gas indicatorB.Vapor indicatorC.Atmosphere analyzer kitD.None of the above
What best describes the usage of Route-Target rewrite？（）A、Route-Target Rewrite is mainly used in Inter-AS MPLS-VPN deployments and is configured at the PErouter in originating AS ASBR to avoid misconfiguration in Route-Target assignment for VPN configurations.B、Route-Target Rewrite is mainly used in Inter-AS MPLS-VPN deployments and is configured at the route-Reflector in originating AS ASBR to avoid misconfiguration in Route-Target assignment for VPN configurations.C、Route-Target Rewrite is mainly used in Inter-AS MPLS-VPN deployments and is configured at the ASBR to avoid misconfiguration in Route-Target assignment for VPN configurations.D、None of the above.
What term is used to describe the process where one frame is placed into a different type of frame?（）A、FramingB、De-encapsulationC、EncapsulationD、De-framingE、None of the above
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
What is the role of Forwarding Equivalence Class （FEC） in MPLS？（）A、FEC determines how IP packets are forwarded in MPLS LSP.B、FEC determines how to establish an LSP path.C、FEC determines how a group of IP packets are mapped to an LSP.D、FEC determines how MPLS labels are stacked in LSP.E、None of above.
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.
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
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
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.
In optical transmission systems， chirped lasers are used for the purpose of：（）.A、Turning the laser to a specific ITU channelB、Keeping the signal wavelength "locked" to a specific technologyC、Suppressing FWM and SBS non-linear effectsD、None ofthe above
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
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
What RMAN command is used to execute a tablespace point-in-time recovery？（）A、 recoverB、 duplicateC、 restoreD、 copyE、 None of the above
单选题What is the action of "pop" in the context of MPLS switching？（）AIt removes the top label in the MPLS label stack.BIt adds a top label in MPLS label stack.CIt replaces the top label in the MPLS label stack with another value.DIt replaces the top label in the MPLS label stack with a set of labels.ENone of above.
单选题What is used as label in cell-based MPLS ？（）AVPIBVCICVPI and VCIDSpecific 4 bytes labelENone of above
单选题In the context of MPLS，what is the correct action to be performed when an aggregate label is received ？（）AIt adds the VPN label into the top label in the MPLS label stackBIt replaces the top label in the MPLS label stack with a VPN label and propagatesCIt replaces the bottom label in the MPLS label stack with a VPN label and propagatesDIt removes the top label in the MPLS label stack and does a Layer 3 lookup on underlying IP packetsENone of above
单选题What RMAN command is used to execute a tablespace point-in-time recovery？（）A recoverB duplicateC restoreD copyE None of the above
单选题Which option describes the incorrect usage of the Label Distribution method？（）ALDP is primarily used in internal networks of MPLS-VPN providers.BMP-BGP is used for label distribution for VPN customer routes.CDirected LDP is used for label distribution in L2-VPN Attachement Circuits.DMP-BGP is used for label distribution in MPLS Traffic Engineered networks.
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?（）AEXP bitsBVPI / VCICshim headerDSNAP header