A.By default， native VLAN packets going out this port will be tagged.
B.Without an encapsulation command， 802.1Q will be the default encapsulation if DTP fails to negotiate a trunking protocol.
C.The interface will support the reception of tagged and untagged traffic.
D.If the device connected to this port is not 802.1Q-enabled， it will not be able to handle 802.1Q packets.
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A.PortFast， UplinkFast， and BackboneFast specific configurations are ignored in Rapid PVST mode.
B.RSTP is enabled globally and uses existing STP configuration.
C.Root and alternative ports transition immediately to the forwarding state.
D.Convergence is improved by using sub-second timers for the blocking， listening， learning， and forwarding port states.
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.
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.
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.
A.root
B.designated
C.alternate
D.backup
E.forwarding
F.learning
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）
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.
A.Layer 2 switching and Layer 3 routing are mutually supported.
B.The port will not be associated with any VLAN.
C.The routed switch port supports VLAN subinterfaces.
D.The routed switch port is used when a switch has only one port per VLAN or subnet.
E.The routed switch port ensures that STP remains in the forwarding state.
Which two of the following steps are necessary to configure inter-VLAN routing between multilayer switches？（）
A.Configure a dynamic routing protocol.
B.Configure SVI interfaces with IP addresses and subnet masks.
C.Configure switch ports with network addresses.
D.Configure switch ports with the autostate exclude command.
E.Document the MAC addresses of the switch ports.
A switch that is to be added to the production network has been preconfigured （trunks， VLANs， VTP， and STP） and was tested in your lab. After installing the switch into the network， the entire network went down.
What might explain what happened？ （）
A.The new switch happened to be running Cisco Catalyst operating system， while the other network switches were running Cisco IOS Software.
B.The configuration revision of the new switch was higher than the configuration revision of the production VTP domain.
C.The link costs on the new switch are set to a high value， causing all ports on the new switch to go into a forwarding mode and none into blocking mode， thereby causing a spanning-tree loop.
D.The ports connecting to the two switches have been configured incorrectly. One side has the command switchport mode access and the other switchport mode trunk.
最新試題
Examine the diagram. A network administrator has recently installed the above switched network using 3550s and would like to control the selection of the root bridge.Which switch should theadministrator configure as the root bridge and which configuration command must theadministrator enter to accomplish this？（）
Refer to the exhibit. Which Virtual Router Redundancy Protocol （VRRP） statement is true about the roles of the master virtual router and the backup virtual router？（）
Which two statements are true about BPDU port-guard and BPDU filtering？（）
Refer to the exhibit. Switch 15 is configured as the root switch for VLAN 10 but not for VLAN 20. If the STP configuration is correct， what will be true about Switch 15？（）
Which statement is correct about RSTP port roles？（）
What is the configured priority value of the Vlan105’s group on DS2 ？（）
Based on the show spanning-tree vlan 200 output shown in the exhibit， which two statements about the STP process for VLAN 200 are true？ （）
Refer to the exhibit. What will happen when one more user is connected to interface FastEthernet 5/1？ （）
Refer to the exhibit. What does the command channel-group 1 mode desirable do？ （）
What will occur when a nonedge switch port that is configured for Rapid Spanning Tree does not receive a BPDU from its neighbor for three consecutive hello time intervals？（）