Switch SW1 has been configured with Private VLANs. With that type of PVLAN port should thedefault gateway be configured？（）

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• 如果网络管理员在交换机上输入以下命令，会有什么结果？Switch1（config-line）# line console 0 Switch1（config-line）# password cisco Switch1（config-line）# login         （）

  A . 采用口令"cisco"来保护控制台端口 B . 通过将可用的线路数指定为0来拒绝用户访问控制台端口 C . 通过提供所需的口令来访问线路配置模式 D . 配置用于远程访问的特权执行口令

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• Which two commands correctly verify whether port security has been configured on portFastEthernet 0/12on a switch？（）

  A . SW1#show swithport port-security interface FastEthernet 0/12 B . SW1# show swithport port-secure interface FastEthernet 0/12 C . SW1# show port-secure interface FastEthernet 0/12 D . SW1#show running-config

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• Which two commands correctly verify whether port security has been configured on port FastEthernet 0/12 on a switch?（）

  A . SW1#show swithport port-security interface FastEthernet 0/12 B . SW1# show swithport port-secure interface FastEthernet 0/12 C . SW1# show port-secure interface FastEthernet 0/12 D . SW1#show running-config

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• Refer to the exhibit. LACP has been configured on Switch1 as shown. Which is the correct command set to configure LACP on Switch2？（） https://assets.asklib.com/images/image2/2018073109354514482.jpg

  A . Switch2# configure terminal Switch2（config）# interface range gigabitethernet3/1 -2 Switch2（config-if）# channel-group 5 mode auto B . Switch2# configure terminal Switch2（config）# interface range gigabitethernet3/1 -2 Switch2（config-if）# channel-group 5 mode passive C . Switch2# configure terminal Switch2（config）# interface range gigabitethernet3/1 -2 Switch2（config-if）# channel-group 5 mode desirable D . Switch2# configure terminal Switch2（config）# interface range gigabitethernet3/1 -2 Switch2（config-if）# channel-group 5 mode o

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• Switch R1 has been configured with DTP using the desirable option.  Which statement describes  Dynamic Trunking Protocol （DTP） desirable mode？（）

  A .  The interface actively attempts to convert the link to a trunk link. B .  The interface is put into permanent trunking mode but prevented from generating DTP frames.   C .  The interface is put into permanent trunking mode and negotiates to convert the link into a trunk  link. D .  The interface is put into a passive mode， waiting to convert the link to a trunk link.   E .  None of the other alternatives apply

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• 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.

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• Refer to the exhibit. Why has this switch not been elected the root bridge for VLAN1?（）https://assets.asklib.com/images/image2/2018072317201039316.png

  A . It has more than one interface that is connected to the root network segment. B . It is running RSTP while the elected root bridge is running 802.1d spanning tree. C . It has a higher MAC address than the elected root bridge. D . It has a higher bridge ID than the elected root bridge.

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• Switch R1 has been configured with Private VLANs.  With that type of PVLAN port should the default gateway be configured？（）

  A .  Trunk B .  Isolated C .  Primary D .  Community E .  Promiscuous F .  None of the other alternatives apply

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• Refer to the exhibit. Which of these statements correctly describes the state of the switch once the boot process has been completed?（）https://assets.asklib.com/images/image2/201807241047007285.jpg

  A . As FastEthernet0/12 will be the last to come up, it will not be blocked by STP. B . Remote access management of this switch will not be possible without configuration change. C . More VLANs will need to be created for this switch. D . The switch will need a different IOS code in order to support VLANs and STP.

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• A network administrator needs to verify that switch interface 0/5 has been assigned to the Sales VLA.N. Which command will accomplish this task?（）

  A . Show vlan B . Show mac-address-table C . Show vtp status D . show spanning-tree root E . show ip interface brief

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• The voice VLAN feature has been enabled on a new Company Catalyst switch port.  What is the  effect of this？ （）

  A . The CoS is trusted for 802.1P or 802.1Q tagged traffic. B . PortFast is disabled on the port. C . Port Security is automatically enabled on a voice VLAN port. D . Untagged traffic is sent according to the default CoS priority of the port. E . None of the other alternatives apply

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• Which two commands correctly verify whether port security has been configured on port FastEthernet 0/12 on a switch？（）

  A . SW1#show swithport port-security interface FastEthernet 0/12 B . SW1# show swithport port-secure interface FastEthernet 0/12 C . SW1# show port-secure interface FastEthernet 0/12 D . SW1#show running-config E . SW1#show port-security interface FastEthernet 0/12

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• A lightweight access point has been connected to a Catalyst 3550 24-PWR switch， and on power-up the access point fails. What is the problem with the switch？（）

  A . The power supply has inadequate wattage. B . Power is incorrectly configured on the port. C . It does not support 802.3af Poe. D . Power is not enabled on the port.

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• A switch has been configured with two vlans and is connected to a router with a trunk for inter-vlan routing.OSPF has been configured on the router，as the routing protocol for the network.Which statement about thisnetwork is true？（）

  A . For the two vlans to communicate，a network statement for the trunk interface needs to be added to the OSPF configuration. B . For the two vlans to communicate， a network statement for each subinterface needs to be  added  to the OSPF configuration. C . Direct inter-vlan communication does not require OSPF D . OSPF cannot be used if router-on-a-stick is configured on the router

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• On a Cisco Nexus 7000 Series Switch， what is the purpose of this command？（）  switch# config terminal  switch（config）# mac address-table learning-mode conversational vlan 1-10  switch（config）#   

  A .  Enable conversational learning on FabricPath vlans 1-10 for F-Series module B .  Enable FabricPath protocol on VLANs 1–10 C .  No need for this command as conversational learning is enabled by default for all VLANs. D .  Enable conversational learning on Classical Ethernet VLAN for F-Series module

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• A Cisco Aironet 1020 controller-based access point has been connected to a Catalyst 3550-24PWR Switch. However， when it is powered up， the access point fails. What has caused this problem？（）

  A . access point does not support 802.11h B . incorrect switch power supply C . switch port is not enabled D . switch does not support 802.3af E . access point has not been initialized with the primary controller

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• A cisco aironet 1020 controller-based access point has been connected to a catalyst 3550-24 pwr switch. however， when it is powered up， the access point fails. What has caused this problem？（）

  A . access point does not support 802.11h B . incorrect switch power supply C . switch port is not enabled D . switch does not support 802.3af E . access point has not been initialized with the primary controller

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• Switch R1 has been configured with the root guard feature.  What statement is true if the spanning  tree enhancement Root Guard is enabled？ （）

  A .  If BPDUs are not received on a non-designated port， the port is moved into the STP loop- inconsistent blocked state B .  IF BPDUs are received on a PortFast enabled port， the port is disabled. C .  If superior BPDUs are received on a designated port， the interface is placed into the root- inconsistent blocked state. D .  If inferior BPDUs are received on a root port， all blocked ports become alternate paths to the  root bride.

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• lightweight access point has been connected to a catalyst 3550 24-pwr switch， and on power-up the access point fails. What is the problem with the switch？（）

  A . the power supply has inadequate wattage. B . power is incorrectly configured on the port. C . it does not support 802.3af poe. D . power is not enabled on the port.

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• A Cisco router has been configured, and the copy running-config startup-config command has been issued. When the router is power cycled, the router prompts with: "Would you like to enter the initial configuration dialog? [yes/no]" Why has this occurred?（）

  A . There is an error in the router DRAM. B . Te IOS image is corrupt. C . The configuration register is set to 0x2142. D . The TFTP server that contains the router configuration file is unreachable. E . A boot system configuration command has placed the router into setup mode.

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• Refer to the exhibit. Why has this switch not been elected the root bridge for VLAN1？（）

  <img src='https://img2.soutiyun.com/shangxueba/ask/64347001-64350000/64349888/0398b672a5fe93231b8d66737518db9a.png' /> A.It has more than one interface that is connected to the root network segment. B.It is running RSTP while the elected root bridge is running 802.1d spanning tree. C.It has a higher MAC address than the elected root bridge. D.It has a higher bridge ID than the elected root bridge.

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• 阅读以下配置信息，解释（5)、（6)空缺处的命令的功能。 SW1 configt SW1（config) interface f0/1（进

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• 网络管理员通过使用命令 SW1（config-if-range) channel-group 1 mode passive 来配置交换机

  网络管理员通过使用命令 SW1(config-if-range) channel-group 1 mode passive 来配置交换机 SW1 和 SW2 之间的 EtherChannel 链路。必须在 SW2 上使用哪个命令来启用此 EtherChannel？() A、SW2(config-if-range) channel-group 1 mode auto B、SW2(config-if-range) channel-group 1 mode active C、SW2(config-if-range) channel-group 1 mode passive D、SW2(config-if-range) channel-group 1 mode desirable

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