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What can a network administrator utilize by using PPP Layer 2 encapsulation (Choose three.) ()。

A.VLAN supportB.compressionC.authenticationD.sliding windowsE.multilink supportF.quality of service

Which three Layer 2 encapsulation types would be used on a WAN rather than a LAN (Choose three.)()。

A.HDLCB.EthernetC.Token RingD.PPPE.FDDIF.Frame Relay

As a frame leaves a Layer 3 device, the Layer 2 encapsulation information is changed from what it was when it entered the devicE.For what two reasons can this happen? ()

A.The data is moving from 10BASE-TX to 100BASE-TX.B.The WAN encapsulation type has changed.C.The data format has changed from analog to digital.D.The

Which three Layer 2 encapsulation types would be used on a WAN rather than a LAN? ()

A.HDLCB.EthernetC.Token RingD.PPPE.FDDIF.Frame Relay

which command allows you to verify the encapsulation type (CISCO OR IETF) for a frame relay link?()

A.show frame-relay mapB.show frame-relay lmiC.show inter serialD.show frame-relay pvc

●路由器命,"Router(config－subif)# encapsulation dotlq 1”作用是(59) 。 (59)A.设置封装类型和子

●路由器命，"Router(config-subif)# encapsulation dotlq 1”作用是（59） 。（59）A.设置封装类型和子接口连接的VLAN 号B.进入 VLAN配置模式C.配置 VTP 口号D.指定路由器的工作模式
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