多項(xiàng)選擇題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.


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1.單項(xiàng)選擇題Which statement correctly describes enabling BPDU guard on an access port that is also enabled for PortFast?()

A.Upon startup, the port transmits 10 BPDUs. If the port receives a BPDU, PortFast and BPDU guard are disabled on that port and it assumes normal STP operation.
B.The access port ignores any received BPDU.
C.If the port receives a BPDU, it is placed into the error-disable state.
D.BPDU guard is only configured globally and the BPDU filter is required for port-level configuration.

2.多項(xiàng)選擇題Which two statements correctly describe characteristics of the PortFast feature? ()

A.STP will be disabled on the port.
B.PortFast can also be configured on trunk ports.
C.PortFast is required to enable port-based BPDU guard.
D.PortFast is used for both STP and RSTP host ports.
E.PortFast is used for STP-only host ports.

3.多項(xiàng)選擇題Which two RSTP port roles include the port as part of the active topology?()

A.root
B.designated
C.alternate
D.backup
E.forwarding
F.learning

4.多項(xiàng)選擇題Which two DTP modes will permit trunking between directly connected switches?()

A.dynamic desirable (VTP domain A) to dynamic desirable (VTP domain A)
B.dynamic desirable (VTP domain A) to dynamic desirable (VTP domain B)
C.dynamic auto (VTP domain A) to dynamic auto (VTP domain A)
D.dynamic auto (VTP domain A) to dynamic auto (VTP domain B)
E.dynamic auto (VTP domain A) to nonegotiate (VTP domain A)
F.nonegotiate (VTP domain A) to nonegotiate (VTP domain B)

5.多項(xiàng)選擇題Which two statements correctly describe VTP?()

A.Transparent mode always has a configuration revision number of 0.
B.Transparent mode cannot modify a VLAN database.
C.Client mode cannot forward received VTP advertisements.
D.Client mode synchronizes its VLAN database from VTP advertisements.
E.Server mode can synchronize across VTP domains.

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