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What does UDLD stand for？（）
- A、UniDirectional Loop Detection
- B、Unspecified Distribution Label Detection
- C、Unified Distribution Label Direction
- D、UniDirectional Link Detection
参考答案
更多 “What does UDLD stand for？（）A、UniDirectional Loop DetectionB、Unspecified Distribution Label DetectionC、Unified Distribution Label DirectionD、UniDirectional Link Detection” 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
What is a Label－Switched Path?()
A. a traffic engineered pathB. another name for a Frame Relay PVCC. a bidirectional path through a networkD. a unidirectional path through a network
考题
Which two of these are correct regarding the recommended practice for distribution layer design based on the following configuration?()
A. use a Layer 2 link between distribution switchesB. use a Layer 3 link between distribution switchesC. use a redundant link to the coreD. use a Layer 3 link between distribution switches with route summarization
考题
Loop guard and UniDirectional Link Detection both protect against Layer 2 STP loops. In which two ways does loop guard differ from UDLD in loop detection and prevention？ （）A、 Loop guard can be used with root guard simultaneously on the same port on the same VLAN while UDLD cannotB、 UDLD protects against STP failures caused by cabling problems that create one-way links.C、 Loop guard detects and protects against duplicate packets being received and transmitted on different portsD、 UDLD protects against unidirectional cabling problems on copper and fiber media.E、 Loop guard protects against STP failures caused by problems that result in the loss of BPDUs from a designated switch port.
考题
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
Loop guard and UniDirectional Link Detection both protect against Layer 2 STP loops. In which two ways does loop guard differ from UDLD in loop detection and prevention？（）A、Loop guard can be used with root guard simultaneously on the same port on the same VLAN while UDLD cannot.B、UDLD protects against STP failures caused by cabling problems that create one-way links.C、Loop guard detects and protects against duplicate packets being received and transmitted on different ports.D、UDLD protects against unidirectional cabling problems on copper and fiber media.E、Loop guard protects against STP failures caused by problems that result in the loss of BPDUs from a designated switch port.
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
Which of the following is true regarding Label Distribution Protocol （LDP）？（）A、It is a label distribution protocol for MPLSB、It is a set of procedures and messages by which LSRs establish Label Switch Paths （LSPs） through a networkC、Tag distribution Protocol （TDP） was the basis for LDPD、All of the above are true
考题
On switch R1 you issue the "udld enable" global command. What does this command accomplish？ （）A、 Enables all fiber-optic LAN ports for Unidirectional LINK Detection （UDLD）B、 Enables all copper media LAN ports Unidirectional Link Detection （UDLD）C、 Overrides the default UDLS setting for all portsD、 Globally enables all ports on the device for Unidirectional Link Detection （UDLS）E、 None of the other alternatives apply
考题
Which two statements correctly describe UDLD？ （）A、Unidirectional link detection is achieved through monitoring STP BPDUs.B、It is recommended that it be enabled globally rather than on an individual port.C、When an error is detected， normal mode will disable a port.D、It is recommended that it be enabled in normal mode.E、It is recommended that it be used with the loop guard feature.
考题
Which three statements about Label-Switched Paths （LSPs） are true？ （）A、 LSPs are bidirectional.B、 LSPs are unidirectional.C、 LSPs can be signaled by CAC.D、 LSPs can be configured explicitly.E、 LSPs can be configured dynamically.
考题
Which two statements about MPLS label-switched paths (LSPs) are true? （）A、LSPs are bidirectional.B、LSPs are unidirectional.C、LSPs must follow the IGP's shortest path.D、LSPs can follow paths other than the IGP's shortest path.
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
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 two features in Cisco switches help prevent Layer 2 loops？（）A、UniDirectional Link DetectionB、Hot Standby Router ProtocolC、Virtual Router Redundancy ProtocolD、PortFastE、root guardF、loop guard
考题
In the context of GMPLS，LMP stands for（）.A、Loop Management ProtocolB、Label Management ProtocolC、Load Management ProtocolD、Link Management ProtocolE、None of above
考题
What is a Label-Switched Path?（）A、a traffic engineered pathB、another name for a Frame Relay PVCC、a bidirectional path through a networkD、a unidirectional path through a network
考题
多选题Loop guard and UniDirectional Link Detection both protect against Layer 2 STP loops. In which two ways does loop guard differ from UDLD in loop detection and prevention？（）ALoop guard can be used with root guard simultaneously on the same port on the same VLAN while UDLD cannot.BUDLD protects against STP failures caused by cabling problems that create one-way links.CLoop guard detects and protects against duplicate packets being received and transmitted on different ports.DUDLD protects against unidirectional cabling problems on copper and fiber media.ELoop guard protects against STP failures caused by problems that result in the loss of BPDUs from a designated switch port.
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.
考题
多选题Loop guard and UniDirectional Link Detection both protect against Layer 2 STP loops. In which two ways does loop guard differ from UDLD in loop detection and prevention？ （）ALoop guard can be used with root guard simultaneously on the same port on the same VLAN while UDLD cannotBUDLD protects against STP failures caused by cabling problems that create one-way links.CLoop guard detects and protects against duplicate packets being received and transmitted on different portsDUDLD protects against unidirectional cabling problems on copper and fiber media.ELoop guard protects against STP failures caused by problems that result in the loss of BPDUs from a designated switch port.
考题
单选题On switch R1 you issue the "udld enable" global command. What does this command accomplish？ （）A
Enables all fiber-optic LAN ports for Unidirectional LINK Detection （UDLD）B
Enables all copper media LAN ports Unidirectional Link Detection （UDLD）C
Overrides the default UDLS setting for all portsD
Globally enables all ports on the device for Unidirectional Link Detection （UDLS）E
None of the other alternatives apply
考题
单选题What does UDLD stand for？（）A
UniDirectional Loop DetectionB
Unspecified Distribution Label DetectionC
Unified Distribution Label DirectionD
UniDirectional Link Detection
考题
单选题What is a Label-Switched Path?（）A
a traffic engineered pathB
another name for a Frame Relay PVCC
a bidirectional path through a networkD
a unidirectional path through a network
考题
单选题Which of the following is true regarding Label Distribution Protocol （LDP）？（）A
It is a label distribution protocol for MPLSB
It is a set of procedures and messages by which LSRs establish Label Switch Paths （LSPs） through a networkC
Tag distribution Protocol （TDP） was the basis for LDPD
All of the above are true
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
多选题Which three statements about Label-Switched Paths （LSPs） are true？ （）ALSPs are bidirectional.BLSPs are unidirectional.CLSPs can be signaled by CAC.DLSPs can be configured explicitly.ELSPs can be configured dynamically.
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.
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