单选题If a switch is working in the fail-open mode， what will happen when the switch’s CAM table fills to capacityand a new frame arrives？（）A A copy of the frame is forwarded out all switch ports other than the port the frame was received on.B The frame is t

题目
单选题
If a switch is working in the fail-open mode， what will happen when the switch’s CAM table fills to capacityand a new frame arrives？（）
A

A copy of the frame is forwarded out all switch ports other than the port the frame was received on.

B

The frame is transmitted on the native VLAN.

C

The switch sends a NACK segment to the frame’s source MAC address.

D

The frame is dropped.

相似考题

1.You need to configure an 802.1Q link on a Ezonexam switch. Which commands, when used together, would do this? (Select two answer choices)A. Switch(vlan) mode trunkB. Switch(config) switchport access mode trunkC. Switch(config-if) switchport mode trunkD. Switch(config-if) switchport trunk encapsulation dot1qE. Switch(config) switchport access mode 1F. Switch(vlan) trunk encapsulation dot1q

2.Refer to the network of Layer 3 switches in the exhibit. The RPI Multi cast Server only multicasts to hosts connected to multilayer switches 5 and 6. The CMU Multicast Server multicasts to hosts on multilayer switches 1 - 6. Given the number of configuration steps involved, what is the most efficient way to configure the net work while meeting the requirements for multicast data flow? （）A. Configure each switch with PIM sparse mode and a separate instance of PIM dense mode.Specify switch 1 as the root for the RPI Multicast Server. Specify switch 2 as the root for the CMU Multicast Server.B. Configure each switch with PIM sparse mode and a separate instance of PIM dense mode. Leave each multicast server as the root of its own multicast tree.C. Configure each switch with PIM sparse - dense mode. Configure switch 3 as a ren dezvous point for the RPI multicast stream.D. Configure each switch with PIM sparse mode and a separate instance of PIM dense mode.Allow the switches to elect their own root for each multicast tree.E. Configure each switch with PIM sparse mode.F. Configure each switch with PIM dense mode.

3.Which commands, when used together, would create an 802.1Q link?()A. Switch(vlan)# mode trunkB. Switch(config)# switchport access mode trunkC. Switch(config-if)# switchport mode trunkD. Switch(config-if)# switchport trunk encapsulation dot1qE. Switch(config)# switchport access mode 1F. Switch(vlan)# trunk encapsulation dot1q

4.要在交换机上运行802.1w,可使用哪个命令来启用该协议?()A.Switch(config)#spanning-tree mode rapid-pvstB.Switch#spanning-tree mode rapid-pvstC.Switch(config)#spanning-tree mode 802.1wD.Switch#spanning-tree mode 802.1w

参考答案和解析
正确答案： D
解析： 暂无解析
更多“If a switch is working in the fail-open mode， what will happ”相关问题

  • 第1题：

    Assuming the default switch configuration,which approach should you use to configure the extended vlan range(1006 through 4094) on a cisco catalyst 3750 series switch?()

    A. Configure the switch to be in VTP client mode.

    B. Configure the switch to be in VTP domaint mode.

    C. Configure the switch to be in VTP transparent mode.

    D. Configure the switch to be in VTPv2.


    参考答案：C

  • 第2题：

    What are two characteristics of a switch that is configured as a VTP client?()

    A.if a switch that is configured to operate in client mode cannot access a VTP server,then the switch reverts to transparent mode.

    B.The local vlan configuration is updated only when an update that has a higher configuration revision number is received.

    C.Vtp advertisements are not forwarded to neighboring switches that are configured in vtp transparent mode.

    D.When switches in vtp client mode are rebooted,they send a vtp advertisement request to the vtp servers.

    E.Vtp client is the default vtp mode

    F.On switches that are configured to operate in client mode ,vlans can be created,deleted,or renamed locally


    参考答案：B, D

  • 第3题：

    Which commands, when used together, would create an 802.1Q link?（）

    • A、Switch(vlan)# mode trunk
    • B、Switch(config)# switchport access mode trunk
    • C、Switch(config-if)# switchport mode trunk
    • D、Switch(config-if)# switchport trunk encapsulation dot1q
    • E、Switch(config)# switchport access mode 1
    • F、Switch(vlan)# trunk encapsulation dot1q

    正确答案:C,D

  • 第4题：

    What are two uRPF working modes？（）

    • A、express mode
    • B、safe mode
    • C、loose mode
    • D、strict mode
    • E、tight mode

    正确答案:C,D

  • 第5题：

    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.

    正确答案:B

  • 第6题：

    What are two results of entering the Switch(config)# vtp mode client command on a Catalyst switch?（）

    • A、The switch will ignore VTP summary advertisements.
    • B、The switch will forward VTP summary advertisements.
    • C、The switch will process VTP summary advertisements.
    • D、The switch will originate VTP summary advertisements.
    • E、The switch will create, modify and delete VLANs for the entire VTP domain.

    正确答案:B,C

  • 第7题：

    What is the name of the VTP mode of operation that enables a switch to forward only VTP advertisements while still permitting the editing of local VLAN information?（）

    • A、server
    • B、client
    • C、tunnel
    • D、transparent

    正确答案:D

  • 第8题：

    A network administrator is explaining VTP configuration to a new technician. What should the network administrator tell the new technician about VTP configuration?（）

    • A、A switch in the VTP client mode cannot update its local VLAN database.
    • B、A trunk link must be configured between the switches to forward VTP updates.
    • C、A switch in the VTP server mode can update a switch in the VTP transparent mode.
    • D、A switch in the VTP transparent mode will forward updates that it receives to other switches.
    • E、A switch in the VTP server mode only updates switches in the VTP client mode that have a higher VTP revision number.
    • F、A switch in the VTP server mode will update switches in the VTP client mode regardless of the configured VTP domain membership.

    正确答案:A,B,D

  • 第9题：

    多选题
    What are two uRPF working modes？（）
    A

    express mode

    B

    safe mode

    C

    loose mode

    D

    strict mode

    E

    tight mode


    正确答案： B,C
    解析： 暂无解析

  • 第10题：

    单选题
    What is the name of the VTP mode of operation that enables a switch to forward only VTPadvertisements while still permitting the editing of local VLAN information?（）
    A

    server

    B

    client

    C

    tunnel

    D

    transparent


    正确答案： C
    解析： 暂无解析

  • 第11题：

    多选题
    What are two results of entering the Switch(config)# vtp mode client command on a Catalyst switch?（）
    A

    The switch will ignore VTP summary advertisements.

    B

    The switch will forward VTP summary advertisements.

    C

    The switch will process VTP summary advertisements.

    D

    The switch will originate VTP summary advertisements.

    E

    The switch will create, modify and delete VLANs for the entire VTP domain.


    正确答案： E,A
    解析： 暂无解析

  • 第12题：

    多选题
    The network administrator is trying to add Switch1 to the network， but the 802.1Q trunk is not coming up. Switch1 was previously tested in the laboratory and its trunk configuration worked fine. What are three possible causes of this problem？（）
    A

    The trunking configuration mode on Switch1 is set to Off.

    B

    The trunking configuration mode on the other end is set to On.

    C

    The trunking configuration mode on the other end is set to Desirable.

    D

    Cisco Discovery Protocol is not running on the other end.

    E

    There is a VTP domain name mismatch.

    F

    Switch1 does not support 802.1Q.


    正确答案： E,F
    解析： 暂无解析

  • 第13题：

    What is the name of the VTP mode of operation that enables a switch to forward only VTP advertisements while still permitting the editing of local VLAN information?()

    A. server

    B. client

    C. tunnel

    D. transparent


    参考答案：D

  • 第14题：

    Which set of commands is recommended to prevent the use of a hub in the access layer?()

    A.switch(config-if)#switchport mode trunk switch(config-if)#switchport port-security maximum 1

    B.switch(config-if)#switchport mode trunk switch(config-if)#switchport port-security mac-address 1

    C.switch(config-if)#switchport mode access switch(config-if)#switchport port-security maximum 1

    D.switch(config-if)#switchport mode access switch(config-if)#switchport port-security mac-address 1


    参考答案：C

  • 第15题：

    Which set of commands is recommended to prevent the use of a hub in the access layer?（）

    • A、switch(config-if)#switchport mode trunk switch(config-if)#switchport port-security maximum 1
    • B、switch(config-if)#switchport mode trunk switch(config-if)#switchport port-security mac-address 1
    • C、switch(config-if)#switchport mode access switch(config-if)#switchport port-security maximum 1
    • D、switch(config-if)#switchport mode access switch(config-if)#switchport port-security mac-address 1

    正确答案:C

  • 第16题：

    f a Cisco switch is configured with VTPv1 in transparent mode， what is done with received VTP advertisements？（）

    • A、They are discarded
    • B、The contents are altered to reflect the switch’s own VTP database and then they are forward out  all trunking ports
    • C、The changes within the advertisements are made to the switch’s VTP database.
    • D、The contents are ignored and they are forwarded out all trunking ports.

    正确答案:A

  • 第17题：

    If a switch is working in the fail-open mode， what will happen when the switch’s CAM table fills to capacityand a new frame arrives？（）

    • A、A copy of the frame is forwarded out all switch ports other than the port the frame was received on.
    • B、The frame is transmitted on the native VLAN.
    • C、The switch sends a NACK segment to the frame’s source MAC address.
    • D、The frame is dropped.

    正确答案:A

  • 第18题：

    The network administrator is trying to add Switch1 to the network， but the 802.1Q trunk is not coming up. Switch1 was previously tested in the laboratory and its trunk configuration worked fine. What are three possible causes of this problem？ （）

    • A、The trunking configuration mode on Switch1 is set to Off.
    • B、The trunking configuration mode on the other end is set to On.
    • C、The trunking configuration mode on the other end is set to Desirable.
    • D、Cisco Discovery Protocol is not running on the other end.
    • E、There is a VTP domain name mismatch.
    • F、Switch1 does not support 802.1Q.

    正确答案:B,C,E

  • 第19题：

    What are two results of entering the Switch(config)# vtp mode client command on a Catalyst switch?（）

    • A、The switch will ignore VTP summary advertisements
    • B、The switch will forward VTP summary advertisements
    • C、The switch will process VTP summary advertisements
    • D、The switch will originate VTP summary advertisements
    • E、The switch will create, modify and delete VLANs for the entire VTP domain

    正确答案:B,C

  • 第20题：

    单选题
    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.


    正确答案： A
    解析： 暂无解析

  • 第21题：

    多选题
    What are two results of entering the Switch(config)# vtp mode client command on a Catalyst switch?（）
    A

    The switch will ignore VTP summary advertisements

    B

    The switch will forward VTP summary advertisements

    C

    The switch will process VTP summary advertisements

    D

    The switch will originate VTP summary advertisements

    E

    The switch will create, modify and delete VLANs for the entire VTP domain


    正确答案： B,E
    解析： 暂无解析

  • 第22题：

    多选题
    What are two characteristics of a switch that is configured as a VTP client？（）
    A

    if a switch that is configured to operate in client mode cannot access a VTP server，then the switch reverts to transparent mode.

    B

    The local vlan configuration is updated only when an update that has a higher configuration revision number is received.

    C

    Vtp advertisements are not forwarded to neighboring switches that are configured in vtp transparent mode.

    D

    When switches in vtp client mode are rebooted，they send a vtp advertisement request to the vtp servers.

    E

    Vtp client is the default vtp mode

    F

    On switches that are configured to operate in client mode ，vlans can be created，deleted，or renamed locally


    正确答案： B,C
    解析： 暂无解析

  • 第23题：

    单选题
    Assuming the default switch configuration，which approach should you use to configure the extended vlan range（1006 through 4094） on a cisco catalyst 3750 series switch？（）
    A

    Configure the switch to be in VTP client mode.

    B

    Configure the switch to be in VTP domaint mode.

    C

    Configure the switch to be in VTP transparent mode.

    D

    Configure the switch to be in VTPv2.


    正确答案： A
    解析： 暂无解析

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