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After connecting a PC to an available port on a switch, you find that the PC can not access any of the resources on the LAN. No other PC's connected to the switch appear to be having any issues. What is the most likely cause for this problem?A．The router

题目

After connecting a PC to an available port on a switch, you find that the PC can not access any of the resources on the LAN. No other PC's connected to the switch appear to be having any issues. What is the most likely cause for this problem?

A．The router lacks a routing table entry for the new host

B．The host switch port is assigned to the incorrect VLAN

C．The host MAC address is incorrectly configured

D．A STP instance for the new host has not been initialized

E．The switch does not have the MAC address hard coded in the CAM table.

相似考题

1.You are given a PC, a router, and a cable. Select the correct combination that will allow you to log into the router locally using a terminal emulation program such as HyperTerminal.()A. Connect the PC‘s COM port to the router‘s console port using a straight-through cable.B. Connect the PC‘s COM port to the router‘s console port using a rollover cable.C. Connect the PC‘s COM port to the router‘s ethernet port using a straight-through cable.D. Connect the PC‘s ethernet port to the router‘s ethernet port using a rollover cable.E. Connect the PC‘s ethernet port to the router‘s ethernet port using a straight- through cable.

2.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.

3.On corporate network, hosts on the same VLAN can communicate with each other, but they are unable to communicate with hosts on different VLANs. What is needed to allow communication between the VLANs?（）A.a router with subinterfaces configured on the physical interface that is connected to the switchB.a router with an IP address on the physical interface connected to the switchC.a switch with an access link that is configured between the switchesD.a switch with a trunk link that is configured between the switches

4.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

更多“After connecting a PC to an available port on a switch, you find that the PC can not access any of the resources on the LAN. No other PC's connected to the switch appear to be having any issues. What is the most likely cause for this problem?A．The router ”相关问题

  • 第1题：

    Hosts on the same VLAN can communicate with each other but are unable to communicate with hosts on different VLANs. What is needed to allow communication between VLANs()。

    A.a switch with a trunk link that is configured between the switches

    B.a router with an IP address on the physical interface that is connected to the switch

    C.a switch with an access link that is configured between the switches

    D.a router with subinterfaces configured on the physical interface that is connected to the switch


    参考答案：D

  • 第2题：

    For which type of connection should a straight-through cable be used?（）

    • A、switch to switch
    • B、switch to hub
    • C、switch to router
    • D、hub to hub
    • E、router to PC

    正确答案:C

  • 第3题：

    Which three of these pre-requisite for resetting a Catalyst Express 500 switch when Cisco Network Assistant is unavailable？（）

    • A、At Least one enabled switch port that is unconnected to any device
    • B、A PC pre-configured with a specific IP Address and Mask
    • C、A PC or laptop with Windows 2000 or Windows XP installed and a web browser that has Java Script enabled
    • D、Physical Access to Switch
    • E、A Switch with no connected devices

    正确答案:A,C,D

  • 第4题：

    A network interface port has collision detection and carrier sensing enabled on a shared twisted pair network. From this statement, what is known about the network interface port?（）

    • A、This is a 10 Mb/s switch port.
    • B、This is a 100 Mb/s switch port.
    • C、This is an Ethernet port operating at half duplex.
    • D、This is an Ethernet port operating at full duplex.
    • E、This is a port on a network interface card in a PC

    正确答案:C

  • 第5题：

    A users Junos Pulse client uses 802.1X to access a wired network and is failing to authenticate. You run a packet capture from the users PC and notice that immediately after the client machine sends an EAPoL-start packet, an EAP-failure packet is returned. You review the RADIUS troubleshooting logs on the MAG Series device and do not see any authentication attempts from the user. Other users on the same Ethernet switch are successfully authenticating. Which device is sending the EAP-failure packet to the workstation?（）

    • A、The RADIUS server
    • B、The EAPoL server
    • C、The workstation's network adapter
    • D、The Ethernet switch

    正确答案:D

  • 第6题：

    You replaced your Layer 3 switch， which is the default gateway of the end users. Many users cannot access anything now， including email， Internet， and other applications， although other users do not have any issues. All of the applications are hosted in an outsourced data center. In order to fix the problem， which one of these actions should you take？（）

    • A、Clear the MAC address table in the switch.
    • B、Clear the ARP cache in the switch.
    • C、Clear the ARP cache in the end devices.
    • D、Clear the ARP cache in the application servers.

    正确答案:C

  • 第7题：

    A Company switch was configured as shown below：  switchport mode access  switchport port-security   switchport port-security maximum 2 switchport port-security mac-address 0002.0002.0002   switchport port-security violation shutdown   Given the configuration output shown above，  what happens when a host with the MAC address of  0003.0003.0003 is directly connected to the switch port？ （）

    • A、 The host will be allowed to connect.
    • B、 The port will shut down.
    • C、 The host can only connect through a hub/switch where 0002.0002.0002 is already connected.  
    • D、 The host will be refused access.
    • E、 None of the other alternatives apply

    正确答案:A

  • 第8题：

    A user on a network cannot access any network resources. The link light on the computer showsthat a connection is present. Which of the following is the MOST likely cause of the problem?（）

    • A、The wrong cable type has been used.
    • B、. IDS has shut down the computer's switch port.
    • C、The port on the switch is configured incorrectly
    • D、Spanning tree protocol was implemented.

    正确答案:C

  • 第9题：

    单选题
    A users Junos Pulse client uses 802.1X to access a wired network and is failing to authenticate. You run a packet capture from the users PC and notice that immediately after the client machine sends an EAPoL-start packet, an EAP-failure packet is returned. You review the RADIUS troubleshooting logs on the MAG Series device and do not see any authentication attempts from the user. Other users on the same Ethernet switch are successfully authenticating. Which device is sending the EAP-failure packet to the workstation?（）
    A

    The RADIUS server

    B

    The EAPoL server

    C

    The workstation's network adapter

    D

    The Ethernet switch


    正确答案： D
    解析： 暂无解析

  • 第10题：

    多选题
    Which three of these pre-requisite for resetting a Catalyst Express 500 switch when Cisco Network Assistant is unavailable？（）
    A

    At Least one enabled switch port that is unconnected to any device

    B

    A PC pre-configured with a specific IP Address and Mask

    C

    A PC or laptop with Windows 2000 or Windows XP installed and a web browser that has Java Script enabled

    D

    Physical Access to Switch

    E

    A Switch with no connected devices


    正确答案： A,C
    解析： 暂无解析

  • 第11题：

    单选题
    You replaced your Layer 3 switch， which is the default gateway of the end users. Many users cannot access anything now， including email， Internet， and other applications， although other users do not have any issues. All of the applications are hosted in an outsourced data center. In order to fix the problem， which one of these actions should you take？ （）
    A

     Clear the MAC address table in the switch.

    B

     Clear the ARP cache in the switch.

    C

     Clear the ARP cache in the end devices.

    D

     Clear the ARP cache in the application servers.


    正确答案： A
    解析： 暂无解析

  • 第12题：

    单选题
    A network interface port has collision detection and carrier sensing enabled on a shared twisted pair network. From this statement, what is known about the network interface port（）。
    A

    This is a 10 Mb/s switch port

    B

    This is a 100 Mb/s switch port

    C

    This is an Ethernet port operating at half duplex

    D

    This is an Ethernet port operating at full duplex

    E

    This is a port on a network interface card in a PC


    正确答案： B
    解析： 暂无解析

  • 第13题：

    A network interface port has collision detection and carrier sensing enabled on a shared twisted pair network. From this statement, what is known about the network interface port（）。

    • A、This is a 10 Mb/s switch port
    • B、This is a 100 Mb/s switch port
    • C、This is an Ethernet port operating at half duplex
    • D、This is an Ethernet port operating at full duplex
    • E、This is a port on a network interface card in a PC

    正确答案:C

  • 第14题：

    You are given a PC, a router, and a cable. Select the correct combination that will allow you to log into the router locally using a terminal emulation program such as HyperTerminal.（）

    • A、Connect the PC's COM port to the router's console port using a straight-through cable.
    • B、Connect the PC's COM port to the router's console port using a rollover cable.
    • C、Connect the PC's COM port to the router's ethernet port using a straight-through cable.
    • D、Connect the PC's ethernet port to the router's ethernet port using a rollover cable.
    • E、Connect the PC's ethernet port to the router's ethernet port using a straight- through cable.

    正确答案:B

  • 第15题：

    Hosts on the same VLAN can communicate with each other but are unable to communicate with hosts on different VLANs. What is needed to allow communication between VLANs（）。

    • A、a switch with a trunk link that is configured between the switches
    • B、a router with an IP address on the physical interface that is connected to the switch
    • C、a switch with an access link that is configured between the switches
    • D、a router with subinterfaces configured on the physical interface that is connected to the switch

    正确答案:D

  • 第16题：

    Which two statements about configuration an unconnected Catalyst Express 500 switch from setup mode using a PC are true？（）

    • A、You may use Cisco Network Assistant to set up the initial configuration
    • B、You must use CLI for initial configuration
    • C、You may use either CLI or CAN for configuration
    • D、You may make a direct connection to the PC from any point on the switch
    • E、You may only make a direct connection from the port with the flashing green LED to the PC

    正确答案:A,E

  • 第17题：

    While you are troubleshooting network performance issues， you notice that a switch is periodically flooding all unicast traffic. Further investigation reveals that periodically the switch is also having spikes in CPU utilization， causing the MAC address table to be flushed and relearned. What is the most likely cause of this issue？（）

    • A、a routing protocol that is flooding updates
    • B、a flapping port that is generating BPDUs with the TCN bit set
    • C、STP is not running on the switch
    • D、a user that is downloading the output of the show-tech command
    • E、a corrupted switch CAM table

    正确答案:B

  • 第18题：

    A standalone wireless AP solution is being installed into the campus infrastructure. The access points appear to boot correctly， however， wireless clients are not obtaining correct access. You verify that the local switch configuration connected to the access point appears as the following：  interface ethernet 0/1  switchport access vlan 10  switchport mode access  spanning-tree portfast  mls qos trust dscp  What is the most likely issue causing the problem？（）

    • A、QoS trust should not be configured on a port attached to a standalone AP.
    • B、QoS trust for switchport mode access should be defined as "cos".
    • C、switchport mode should be defined as "trunk" with respective QoS.
    • D、switchport access vlan should be defined as "1".

    正确答案:C

  • 第19题：

    On corporate network, hosts on the same VLAN can communicate with each other, but they are unable to communicate with hosts on different VLANs. What is needed to allow communication between the VLANs?（）

    • A、a router with subinterfaces configured on the physical interface that is connected to the switch
    • B、a router with an IP address on the physical interface connected to the switch
    • C、a switch with an access link that is configured between the switches
    • D、a switch with a trunk link that is configured between the switches

    正确答案:A

  • 第20题：

    单选题
    A user on a network cannot access any network resources. The link light on the computer showsthat a connection is present. Which of the following is the MOST likely cause of the problem?（）
    A

    The wrong cable type has been used.

    B

    . IDS has shut down the computer's switch port.

    C

    The port on the switch is configured incorrectly

    D

    Spanning tree protocol was implemented.


    正确答案： C
    解析： 暂无解析

  • 第21题：

    单选题
    While you are troubleshooting network performance issues， you notice that a switch is periodically flooding all unicast traffic. Further investigation reveals that periodically the switch is also having spikes in CPU utilization， causing the MAC address table to be flushed and relearned. What is the most likely cause of this issue？（）
    A

    a routing protocol that is flooding updates

    B

    a flapping port that is generating BPDUs with the TCN bit set

    C

    STP is not running on the switch

    D

    a user that is downloading the output of the show-tech command

    E

    a corrupted switch CAM table


    正确答案： A
    解析： 暂无解析

  • 第22题：

    多选题
    Which two statements about configuration an unconnected Catalyst Express 500 switch from setup mode using a PC are true？（）
    A

    You may use Cisco Network Assistant to set up the initial configuration

    B

    You must use CLI for initial configuration

    C

    You may use either CLI or CAN for configuration

    D

    You may make a direct connection to the PC from any point on the switch

    E

    You may only make a direct connection from the port with the flashing green LED to the PC


    正确答案： B,C
    解析： 暂无解析

  • 第23题：

    单选题
    After a technician came out and installed a new wireless router, one of the wired workstations began having problems connecting to the file server. This is only an intermittent problem. Which of the following actions will the technician MOST likely perform to resolve this problem?（）
    A

    Change the router's SSID 

    B

    Move the router's location

    C

    Check user permissions

    D

    Check the cable ends


    正确答案： D
    解析： 暂无解析

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