How is a Martini Layer 2 MPLS VPN established?（）A、established using LDPB、established using BGPC、established using RSVPD、established using IP
How is a Martini Layer 2 MPLS VPN established?（）
- A、established using LDP
- B、established using BGP
- C、established using RSVP
- D、established using IP
相关考题：
How is a Martini Layer 2 MPLS VPN established?() A. established using LDPB. established using BGPC. established using RSVPD. established using IP
Which three mechanisims support the forwarding plane of a Layer 3 VPN in JUNOS software? () A. MPLS LSPB. ATM tunnelC. GRE tunnelD. IPSEC tunnelE. L2TPv3 session
Compared to the traditional Layer 2 and Layer 3 system, how does the Cisco Catalyst 6500 VSS 1440simplify the network? () A. provides loop-free technologyB. manages additional routing peersC. provides HSRP/VRRPD. manages two nodes and configuration
Which two of these are characteristics of MPLS VPNs?() A. Layer 3 MPLS VPNs can forward only IP packetsB. Layer 2 MPLS VPNs can forward any network protocolC. MPLS label paths are automatically formed based on Layer 2 framesD. Layer 3 MPLS VPNs can forward any network protocol based on Layer 2 framesE. In Layer 2 MPLS VPNS, the service provider controls the customer Layer 3 policies
When you design QoS on CE for an MPLS Layer 2 VPN， which three things should be considered？（）A、Layer 2 access link QoS designB、enterprise-to-service-provider mapping modelsC、Layer 3 link access QoS designD、service provider service level agreementsE、Layer 2 link access load balancing
Which technology is an example of the need for a designer to clearly define features and designedperformance when designing advanced WAN services with a service provider？（）A、 FHRP to remote branches.B、 Layer 3 MPLS VPNs routing.C、 Control protocols （for example Spanning Tree Protocol） for a Layer 3 MPLS service.D、 Intrusion prevention， QoS， and stateful firewall support network wide.
When an MPLS Layer 2 VPN runs in the hub-and-spoke model， where is QoS implemented？（）A、hub and spokeB、PEC、CED、hubE、spoke
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
Compared to the traditional Layer 2 and Layer 3 system, how does the Cisco Catalyst 6500 VSS1440 simplify the network? （）A、provides loop-free technologyB、manages additional routing peersC、provides HSRP/VRRPD、manages two nodes and configuration
Which three MPLS statements are true？（）A、Cisco Express Forwarding （CEF） must be enabled as a prerequisite to running MPLS on a Cisco router.B、Frame-mode MPLS inserts a 32-bit label between the Layer 3 and Layer 4 headers.C、MPLS is designed for use with frame-based Layer 2 encapsulation protocols such as Frame Relay， but is not supported by ATM because of ATM fixed-length cells.D、OSPF， EIGRP， IS-IS， RIP， and BGP can be used in the control plane.E、The control plane is responsible for forwarding packets.F、The two major components of MPLS include the control plane and the data plane.
Which two of these are characteristics of MPLS VPNs？ （）A、 Layer 3 MPLS VPNs can forward only IP packetsB、 Layer 2 MPLS VPNs can forward any network protocolC、 MPL S label paths are automatically formed based on Layer 2 framesD、 Layer 3 MPLS VPNs can forward any network protocol based on Layer 2 framesE、 In Layer 2 MPLS VPNS， the service provider controls the customer Layer 3 policies
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
Which command is used to enable EtherChannel hashing for Layer 3 IP and Layer 4 port-based CEF？（）A、mpls ip cefB、port-channel ip cefC、mpls ip port-channel cefD、port-channel load balanceE、mpls ip load-balanceF、ip cef EtherChannel channel-id XOR L4G、ip cef connection exchange
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
Which traffic descriptor is used for marking？ （）A、weighted RED （WRED） orange or green labelsB、modular QoS CLI （MQC） application layer tagsC、Deficit Round Robin （DRR） precedence bitsD、header compression tagsE、MPLS experimental bitsF、FIFO Layer 2 descriptor labels （L2DL）
Which two of these are characteristics of MPLS VPNs?（）A、Layer 3 MPLS VPNs can forward only IP packetsB、Layer 2 MPLS VPNs can forward any network protocolC、MPLS label paths are automatically formed based on Layer 2 framesD、Layer 3 MPLS VPNs can forward any network protocol based on Layer 2 framesE、In Layer 2 MPLS VPNS, the service provider controls the customer Layer 3 policies
Which three mechanisims support the forwarding plane of a Layer 3 VPN in JUNOS software? （）A、MPLS LSPB、ATM tunnelC、GRE tunnelD、IPSEC tunnelE、L2TPv3 session
Given the following MPLS L2 configuration command: mpls-relay 10.1.1.1 4 Which two statements true? （）(Choose two.)A、This command is applied to the core router facing interface.B、This command is applied to the customer facing interface.C、The 4 is locally significant and identifies the layer 2 circuit.D、The 4 must match exactly on the peer router configuration on the remote end.
多选题Which three MPLS statements are true？（）ACisco Express Forwarding （CEF） must be enabled as a prerequisite to running MPLS on a Cisco router.BFrame-mode MPLS inserts a 32-bit label between the Layer 3 and Layer 4 headers.CMPLS is designed for use with frame-based Layer 2 encapsulation protocols such as Frame Relay， but is not supported by ATM because of ATM fixed-length cells.DOSPF， EIGRP， IS-IS， RIP， and BGP can be used in the control plane.EThe control plane is responsible for forwarding packets.FThe two major components of MPLS include the control plane and the data plane.
单选题How is a Martini Layer 2 MPLS VPN established?（）Aestablished using LDPBestablished using BGPCestablished using RSVPDestablished using IP
单选题What is the role of Forwarding Equivalence Class （FEC） in MPLS？（）AFEC determines how IP packets are forwarded in MPLS LSP.BFEC determines how to establish an LSP path.CFEC determines how a group of IP packets are mapped to an LSP.DFEC determines how MPLS labels are stacked in LSP.ENone of above.
多选题Which two of these are characteristics of MPLS VPNs?（）ALayer 3 MPLS VPNs can forward only IP packetsBLayer 2 MPLS VPNs can forward any network protocolCMPLS label paths are automatically formed based on Layer 2 framesDLayer 3 MPLS VPNs can forward any network protocol based on Layer 2 framesEIn Layer 2 MPLS VPNS, the service provider controls the customer Layer 3 policies
单选题When an MPLS Layer 2 VPN runs in the hub-and-spoke model， where is QoS implemented？（）Ahub and spokeBPECCEDhubEspoke
单选题In a frame ，the MPLS label is imposed（）.AAfter the Layer3 header and before Layer2 headerBAfter the Layer2 header and before Layer3 headerCWithin the Layer 3 headerDBefore the layer 2 header
单选题Where is the MPLS label imposed？（）Aafter the Layer 3 header and before the Layer 2 payloadBafter the Layer 3 header and before the Layer 4 payloadCafter the Layer 2 header and before the Layer 1 payloadDafter the Layer 1 header and before the Layer 2 payloadEafter the Layer 2 header and before the Layer 3 payload
单选题Which technology is an example of the need for a designer to clearly define features and designedperformance when designing advanced WAN services with a service provider？（）A FHRP to remote branches.B Layer 3 MPLS VPNs routing.C Control protocols （for example Spanning Tree Protocol） for a Layer 3 MPLS service.D Intrusion prevention， QoS， and stateful firewall support network wide.
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