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单选题
APDP（All Path Detection Protocol）最长在多长时间内检测到接口故障（）。
A
50ms
B
1-2s
C
100ms
D
50s
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Part of the job as a network administrator is being able to make a distinction between routed protocols and routing protocols. Which of the following statements is true regarding them?（）A、A routing protocol is assigned to an interface and determines the method of packet delivery.B、A routed protocol is assigned to an interface and determines the method of packet delivery.C、A routing protocol determines the path of a packet through a network.D、A routed protocol determines the path of a packet through a network.E、A routing protocol operates at the transport layer of the OSI model.F、A routed protocol updates the routing table of a router.
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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
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单选题What protocol is used for Path Setup in MPLS traffic engineering？（）A
OSPFB
ISISC
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多选题Part of the job as a network administrator is being able to make a distinction between routed protocols and routing protocols. Which of the following statements is true regarding them?（）AA routing protocol is assigned to an interface and determines the method of packet delivery.BA routed protocol is assigned to an interface and determines the method of packet delivery.CA routing protocol determines the path of a packet through a network.DA routed protocol determines the path of a packet through a network.EA routing protocol operates at the transport layer of the OSI model.FA routed protocol updates the routing table of a router.
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多选题Which of the following statements regarding routed and routing protocols are true?（）AA routed protocol is assigned to an interface and determines the method of packet deliver.BA routing protocol determines the path of a packet through a network.CA routed protocol determines the path of a packet through a network.DA routing protocol operates at the transport layer of the OSI model.EA routed protocol updates the routing table of a router.
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多选题关于APDP（All Path Detection Protocol），以下说法正确的是（）。AAPDP本地模式是指接口状态直接由数据平面感知，快速检测到故障，而且远端设备不需要支持APDP，但是不能应用于路由器之间有传输设备的情况BAPDP远端模式下，远端设备不需要支持APDP，可以检测所有本地故障和远端故障CAPDP本地模式和远程模式可以单独使用，也可以同时使用D不能在一台路由器上同时运行APDP本地模式和远程模式，如果同时配置了这两种模式，则只有远程模式起作用
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多选题What two things will a router do when running a distance vector routing protocol? （）ASend periodic updates regardless of topology changes.BSend entire routing table to all routers in the routing domain.CUse the shortest-path algorithm to the determine best path.DUpdate the routing table based on updates from their neighbors.EMaintain the topology of the entire network in its database.
考题
判断题APDP检测到链路故障恢复时，系统将立即将业务流量恢复到主链路上。A
对B
错
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