单选题A new Catalyst switch is connected to an existing switch using a crossover cable. As a result of this, what would the switch port link lights display?（）A The switch port link lights will be off on both switches indicating the ports are not connected.B

题目
单选题
A new Catalyst switch is connected to an existing switch using a crossover cable. As a result of this, what would the switch port link lights display?（）
A

The switch port link lights will be off on both switches indicating the ports are not connected.

B

The switch port link light will be off on one switch indicating that STP has disabled the port.

C

The switch port link lights will flash amber indicating an error.

D

The switch port link lights will be green indicating normal operation.

相似考题

1.A new Catalyst switch is connected to an existing switch using a crossover cable. As a result of this, what would the switch port link lights display?()A. The switch port link lights will be off on both switches indicating the ports are not connected.B. The switch port link light will be off on one switch indicating that STP has disabled the port.C. The switch port link lights will flash amber indicating an error.D. The switch port link lights will be green indicating normal operation.

2.A network administrator must configure 200 switch ports to accept traffic from only the currently attached host devices. What would be the most efficient way to configure MAC-level security on all these ports?（）A. Visually verify the MAC addresses and then telnet to the switches to enter the switchport-port security mac-address command.B. Have end users e-mail their MAC addresses. Telnet to the switch to enter the switchport-port security mac-address command.C. Use the switchport port-security MAC address sticky command on all the switch ports that have end devices connected to them.D. Use show mac-address-table to determine the addresses that are associated with each port and then enter the commands on each switch for MAC address port-security.

3.Refer to the exhibit.All switch ports are assigned to the correct VLANs, but none of the hosts connected to SwitchA can communicate with hosts in the same VLAN connected to SwitchB. Based on the output shown, what is the most likely problem?（）A.The access link needs to be configured in multiple VLANs.B.The link between the switches is configured in the wrong VLAN.C.The link between the switches needs to be configured as a trunk.D.VTP is not configured to carry VLAN information between the switches.E.Switch IP addresses must be configured in order for traffic to be forwarded between the switches

4.Why would a network administrator configure port security on a switch?()A. To prevent unauthorized Telnet access to a switch port.B. To limit the number of Layer 2 broadcasts on a particular switch port.C. To prevent unauthorized hosts from accessing the LAN.D. To protect the IP and MAC address of the switch and associated ports.E. To block unauthorized access to the switch management interfaces over common TCP ports.

参考答案和解析
正确答案： C
解析： 暂无解析
更多“单选题A new Catalyst switch is connected to an existing switch using a crossover cable. As a result of this, what would the switch port link lights display?（）A The switch port link lights will be off on both switches indicating the ports are not connected.B ”相关问题

  • 第1题：

    Refer to the diagram. Which three statements describe the router port configuration and the switch port configuration as shown in the topology? ()

    A.The Router1 WAN port is configured as a trunking port.

    B.The Router1 port connected to Switch1 is configured using subinterfaces.

    C.The Router1 port connected to Switch1 is configured as 10 Mbps.

    D.The Switch1 port connected to Router1 is configured as a trunking port.

    E.The Switch1 port connected to Host B is configured as an access port.

    F.The Switch1 port connected to Hub1 is configured as full duplex.


    参考答案：B, D, E

  • 第2题：

    When you enter the interface command auto qos voip cisco-phone on a port at the edge of a network,how does the Cisco Catalyst switch detect if a Cisco IP Phone is connected to the port?（）

    • A、by snooping the CoS marking on the incoming frames
    • B、by using RTP hello messages between the switch port and the Cisco IP Phone
    • C、by using CDP
    • D、by using DHCP snooping
    • E、by snooping the incoming 802.1Q VLAN tag

    正确答案:C

  • 第3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4题：

    What will an Ethernet switch do if it receives a unicast frame with a destination MAC that is listed in the switch table?（）

    • A、The switch will not forward unicast frames.
    • B、The switch will forward the frame to a specific port.
    • C、The switch will return a copy of the frame out the source port.
    • D、The switch will remove the destination MAC from the switch table.
    • E、The switch will forward the frame to all ports except the port on which it was received.

    正确答案:B

  • 第5题：

    Which statement is correct about RSTP port roles？（）

    • A、The designated port is the switch port on every nonroot bridge that is the chosen path to theroot bridge. There can be only one designated port on every switch. The designated portassumes the forwarding state in a stable active topology. All switches connected to a given segment listen to all BPDUs and determine the switch that will be the root switch for a particular segment.
    • B、The disabled port is an additional switch port on the designated switch with a redundant link to the segment for which the switch is designated. A disabled port has a higher port ID than the disabled port on the designated switch. The disabled port assumes the discarding state in astable active topology.
    • C、The backup port is a switch port that offers an alternate path toward the root bridge. The backup port assumes a discarding state in a stable， active topology. The backup port will be present on nondesignated switches and will make a transition to a designated port if the current designated path fails.
    • D、The root port is the switch port on every nonroot bridge that is the chosen path to the root bridge. There can be only one root port on every switch. The root port assumes the forwarding state in a stable active topology.

    正确答案:D

  • 第6题：

    While troubleshooting a network connectivity problem, a technician observes steady link lights on both the workstation NIC and the switch port to which the workstation is connected. However, when the ping command is issued from the workstation, the output message "Request timed out." is displayed. At which layer of the OSI model does the problem most likely exist（）。

    • A、the session layer
    • B、the protocol layer
    • C、the data link layer
    • D、the access layer
    • E、the network layer
    • F、the application layer

    正确答案:E

  • 第7题：

    单选题
    A network administrator must configure 200 switch ports to accept traffic from only the currently attached host devices. What would be the most efficient way to configure MAC-level security on all these ports?（）
    A

    Visually verify the MAC addresses and then telnet to the switches to enter the switchport-port security mac-address command

    B

    Have end users e-mail their MAC addresses. Telnet to the switch to enter the switchport-port security mac-address command

    C

    Use the switchport port-security MAC address sticky command on all the switch ports that have end devices connected to them

    D

    Use show mac-address-table to determine the addresses that are associated with each port and then enter the commands on each switch for MAC address port-security


    正确答案： A
    解析： 暂无解析

  • 第8题：

    单选题
    While troubleshooting a network connectivity problem, a technician observes steady link lights on both the workstation NIC and the switch port to which the workstation is connected. However, when the ping command is issued from the workstation, the output message "Request timed out." is displayed. At which layer of the OSI model does the problem most likely exist?（）
    A

    the session layer

    B

    the protocol layer

    C

    the data link layer

    D

    the access layer

    E

    the network layer

    F

    the application layer


    正确答案： F
    解析： 暂无解析

  • 第9题：

    单选题
    What will an Ethernet switch do if it receives a unicast frame with a destination MAC that is listed in the switch table?（）
    A

    The switch will not forward unicast frames.

    B

    The switch will forward the frame to a specific port.

    C

    The switch will return a copy of the frame out the source port.

    D

    The switch will remove the destination MAC from the switch table.

    E

    The switch will forward the frame to all ports except the port on which it was received.


    正确答案： D
    解析： 暂无解析

  • 第10题：

    多选题
    By default, each port in a Cisco Catalyst switch is assigned to VLAN1. Which two recommendations are key to avoid unauthorized management access? （）
    A

    Create an additional ACL to block the access to VLAN 1.

    B

    Move the management VLAN to something other than default.

    C

    Move all ports to another VLAN and deactivate the default VLAN.

    D

    Limit the access in the switch using port security configuration.

    E

    Use static VLAN in trunks and access ports to restrict connections.

    F

    Shutdown all unused ports in the Catalyst switch.


    正确答案： A,F
    解析： 暂无解析

  • 第11题：

    单选题
    Which statement is correct about RSTP port roles？（）
    A

    The designated port is the switch port on every nonroot bridge that is the chosen path to theroot bridge. There can be only one designated port on every switch. The designated portassumes the forwarding state in a stable active topology. All switches connected to a given segment listen to all BPDUs and determine the switch that will be the root switch for a particular segment.

    B

    The disabled port is an additional switch port on the designated switch with a redundant link to the segment for which the switch is designated. A disabled port has a higher port ID than the disabled port on the designated switch. The disabled port assumes the discarding state in astable active topology.

    C

    The backup port is a switch port that offers an alternate path toward the root bridge. The backup port assumes a discarding state in a stable， active topology. The backup port will be present on nondesignated switches and will make a transition to a designated port if the current designated path fails.

    D

    The root port is the switch port on every nonroot bridge that is the chosen path to the root bridge. There can be only one root port on every switch. The root port assumes the forwarding state in a stable active topology.


    正确答案： B
    解析： 暂无解析

  • 第12题：

    单选题
    Why would a network administrator configure port security on a switch?（）
    A

    To prevent unauthorized Telnet access to a switch port.

    B

    To limit the number of Layer 2 broadcasts on a particular switch port.

    C

    To prevent unauthorized hosts from accessing the LAN.

    D

    To protect the IP and MAC address of the switch and associated ports.

    E

    To block unauthorized access to the switch management interfaces over common TCP ports.


    正确答案： D
    解析： 暂无解析

  • 第13题：

    What will an Ethernet switch do if it receives a unicast frame with a destination MAC that is listed in the switch table()。

    A.The switch will not forward unicast frames.

    B.The switch will forward the frame to a specific port.

    C.The switch will return a copy of the frame out the source port.

    D.The switch will remove the destination MAC from the switch table.

    E.The switch will forward the frame to all ports except the port on which it was received.


    参考答案：B

  • 第14题：

    A new Catalyst switch is connected to an existing switch using a crossover cable. As a result of this, what would the switch port link lights display?（）

    • A、The switch port link lights will be off on both switches indicating the ports are not connected.
    • B、The switch port link light will be off on one switch indicating that STP has disabled the port.
    • C、The switch port link lights will flash amber indicating an error.
    • D、The switch port link lights will be green indicating normal operation.

    正确答案:D

  • 第15题：

    You work as a network Technician. A new workstation has consistently been unable to obtain anIP address from the DHCP server when the workstation boots. Older workstations function normally， and the new workstation obtains an address when manually forced to renew its address.  What should be configured on the switch to allow the workstation to obtain an IP address at boot？（）

    • A、UplinkFast on the switch port connected to the server
    • B、BackboneFast on the switch port connected to the server
    • C、PortFast on the switch port connected to the workstation
    • D、trunking on the switch

    正确答案:C

  • 第16题：

    An administrator would like to configure a switch over a virtual terminal connection from locations outside of the local LAN. Which of the following are required in order for the switch to be configured from a remote location？ （）

    • A、The switch must be configured with an IP address,subnet mask,and default gateway.
    • B、The switch must be connected to a router over a VLAN trunk.
    • C、The switch must be reachable through a port connected to its management VLAN.
    • D、The switch console port must be connected to the Ethernet LAN.
    • E、The switch management VLAN must be created and have a membership of at least one switch port.
    • F、The switch must be fully configured as an SNMP agent.

    正确答案:A,C

  • 第17题：

    A network administrator must configure 200 switch ports to accept traffic from only the currently attached host devices. What would be the most efficient way to configure MAC-level security on all these ports?（）

    • A、Visually verify the MAC addresses and then telnet to the switches to enter the switchport-port security mac-address command
    • B、Have end users e-mail their MAC addresses. Telnet to the switch to enter the switchport-port security mac-address command
    • C、Use the switchport port-security MAC address sticky command on all the switch ports that have end devices connected to them
    • D、Use show mac-address-table to determine the addresses that are associated with each port and then enter the commands on each switch for MAC address port-security

    正确答案:C

  • 第18题：

    A technician needs to add network capacity. However, when plugging a second switch into the first switch, there is no link light. Which of the following is the cause of this situation?（）

    • A、The switches are not stackable
    • B、The cable was not wired using 568A
    • C、The cable needs to be a crossover cable
    • D、The switches have IGMP snooping enabled

    正确答案:C

  • 第19题：

    单选题
    A network administrator must configure 200 switch ports to accept traffic from only the currently attached host devices.What would be the most efficient way to configure MAC-level security on all these ports？ （）
    A

    Visually verify the MAC addresses and then telnet to the switches to enter the switchport-port security mac-address command.

    B

    Have end users e-mail their MAC addresses. Telnet to the switch to enter the switchport-port security mac-address command.

    C

    Use the switchport port-security MAC address sticky command on all the switch ports that have end devices connected to them.

    D

    Use show mac-address-table to determine the addresses that are associated with each port and then enter the commands on each switch for MAC address port-security.


    正确答案： A
    解析： 暂无解析

  • 第20题：

    单选题
    Refer to the exhibit.All switch ports are assigned to the correct VLANs, but none of the hosts connected to SwitchA can communicate with hosts in the same VLAN connected to SwitchB. Based on the output shown, what is the most likely problem?（）
    A

    The access link needs to be configured in multiple VLANs.

    B

    The link between the switches is configured in the wrong VLAN.

    C

    The link between the switches needs to be configured as a trunk.

    D

    VTP is not configured to carry VLAN information between the switches.

    E

    Switch IP addresses must be configured in order for traffic to be forwarded between the switches


    正确答案： D
    解析： 暂无解析

  • 第21题：

    单选题
    A technician needs to add network capacity. However, when plugging a second switch into the first switch, there is no link light. Which of the following is the cause of this situation?（）
    A

    The switches are not stackable

    B

    The cable was not wired using 568A

    C

    The cable needs to be a crossover cable

    D

    The switches have IGMP snooping enabled


    正确答案： D
    解析： 暂无解析

  • 第22题：

    单选题
    A new Catalyst switch is connected to an existing switch using a crossover cable. As a result of this, what would the switch port link lights display?（）
    A

    The switch port link lights will be off on both switches indicating the ports are not connected.

    B

    The switch port link light will be off on one switch indicating that STP has disabled the port.

    C

    The switch port link lights will flash amber indicating an error.

    D

    The switch port link lights will be green indicating normal operation.


    正确答案： D
    解析： 暂无解析

  • 第23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： C
    解析： 暂无解析

  • 第24题：

    单选题
    You work as a network Technician. A new workstation has consistently been unable to obtain anIP address from the DHCP server when the workstation boots. Older workstations function normally， and the new workstation obtains an address when manually forced to renew its address.  What should be configured on the switch to allow the workstation to obtain an IP address at boot？（）
    A

    UplinkFast on the switch port connected to the server

    B

    BackboneFast on the switch port connected to the server

    C

    PortFast on the switch port connected to the workstation

    D

    trunking on the switch


    正确答案： D
    解析： 暂无解析

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