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单选题
While troubleshooting a connectivity problem, a network administrator notices that a port status LED on a Cisco Catalyst series switch is alternating green and amber. Which condition could this indicate?（）
A
The port is experiencing errors.
B
The port is administratively disabled.
C
The port is blocked by spanning tree.
D
The port has an active link with normal traffic activity.
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更多 “单选题While troubleshooting a connectivity problem, a network administrator notices that a port status LED on a Cisco Catalyst series switch is alternating green and amber. Which condition could this indicate?（）A The port is experiencing errors.B The port is administratively disabled.C The port is blocked by spanning tree.D The port has an active link with normal traffic activity.” 相关考题
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As a network administrator, you issue the interface auto qos voip cisco-phone command on a port in an edge network. It is possible for a Cisco Catalyst switch to check if a Cisco IP Phone is directly attached to that port by:（）A. using DHCP snoopingB. snooping the incoming 802.1Q VLAN tagC. using CDPD. snooping the CoS marking on the incoming frames
考题
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 framesB. by using RTP hello messages between the switch port and the Cisco IP PhoneC. by using CDPD. by using DHCP snoopingE. by snooping the incoming 802.1Q VLAN tag
考题
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.
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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 layerB.the protocol layerC.the data link layerD.the access layerE.the network layerF.the application layer
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While troubleshooting a connectivity problem, a network administrator notices that a port status LED on a Cisco Catalyst series switch is alternating green and amber. Which condition could this indicate（）。A.The port is experiencing errorsB.The port is administratively disabledC.The port is blocked by spanning treeD.The port has an active link with normal traffic activity
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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 framesB、by using RTP hello messages between the switch port and the Cisco IP PhoneC、by using CDPD、by using DHCP snoopingE、by snooping the incoming 802.1Q VLAN tag
考题
While troubleshooting a connectivity problem, a network administrator notices that a port status LED on a Cisco Catalyst series switch is alternating green and amber. Which condition could this indicate?（）A、The port is experiencing errors.B、The port is administratively disabled.C、The port is blocked by spanning tree.D、The port has an active link with normal traffic activity.
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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.
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You examine the port statistics on a Cisco Catalyst switch and notice an excessive number offrames are being dropped. Which of the following are possible reasons for the drops？（）A、Unknown destination MAC addressB、Bad cablingC、MAC forwarding table is fullD、Port configured for half duplexE、Port configured for full duplexF、Network congestion
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While troubleshooting a connectivity problem, a network administrator notices that a port status LED on a Cisco Catalyst series switch is alternating green and amber. Which condition could this indicate（）。A、The port is experiencing errorsB、The port is administratively disabledC、The port is blocked by spanning treeD、The port has an active link with normal traffic activity
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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 configurationB、You must use CLI for initial configurationC、You may use either CLI or CAN for configurationD、You may make a direct connection to the PC from any point on the switchE、You may only make a direct connection from the port with the flashing green LED to the PC
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When using Cisco Network Assistant to configure a WS-CE500-24LC switch， which three are available choices in the port settings window？（）A、Duplex mode selectionsB、Auto MDIX selectionsC、Status SelectionsD、Group mode selectionsE、Port security selections
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A network administrator needs to configure port security on a switch.which two statements are true？（）A、The network administrator can apply port security to dynamic access portsB、The network administrator can configure static secure or sticky secure mac addresses in the voice vlan.C、The sticky learning feature allows the addition of dynamically learned addresses to the runningconfiguration.D、The network administrator can apply port security to EtherChannels.E、When dynamic mac address learning is enabled on an interface，the switch can learn new addresses，up to the maximum defined.
考题
Which of these commands can you use to show if an operational Catalyst switch port is set for autonegotiation of speed and duplex when running Cisco IOS software?（）A、show port networkB、 show running-configC、show controllers Ethernet-controllerD、 show interfaces
考题
As a network administrator, you issue the interface auto qos voip cisco-phone command on a port in an edge network. It is possible for a Cisco Catalyst switch to check if a Cisco IP Phone is directly attached to that port by:（）A、using DHCP snoopingB、snooping the incoming 802.1Q VLAN tagC、using CDPD、snooping the CoS marking on the incoming frames
考题
When configuring port security on a Cisco Catalyst switch port， what is the default action taken by the switch if a violation occurs？ （）A、protect （drop packets with unknown source addresses）B、restrict （increment SecurityViolation counter）C、shut down （access or trunk port）D、transition （the access port to a trunking port）
考题
You need to configure port security on switch R1. Which two statements are true about this technology？ （）A、 Port security can be configured for ports supporting VoIP.B、 With port security configured， four MAC addresses are allowed by default.C、 The network administrator must manually enter the MAC address for each device in order for the switch to allow connectivity.D、Withsecurity configured， only one MAC addresses is allowed by default. E、 Port security cannot be configured for ports supporting VoIP.
考题
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 layerB、the protocol layerC、the data link layerD、the access layerE、the network layerF、the application layer
考题
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 layerB
the protocol layerC
the data link layerD
the access layerE
the network layerF
the application layer
考题
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.
考题
单选题As a network administrator, you issue the interface auto qos voip cisco-phone command on a port in an edge network. It is possible for a Cisco Catalyst switch to check if a Cisco IP Phone is directly attached to that port by:（）A
using DHCP snoopingB
snooping the incoming 802.1Q VLAN tagC
using CDPD
snooping the CoS marking on the incoming frames
考题
单选题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 framesB
by using RTP hello messages between the switch port and the Cisco IP PhoneC
by using CDPD
by using DHCP snoopingE
by snooping the incoming 802.1Q VLAN tag
考题
单选题While troubleshooting a connectivity problem, a network administrator notices that a port status LED on a Cisco Catalyst series switch is alternating green and amber. Which condition could this indicate（）。A
The port is experiencing errorsB
The port is administratively disabledC
The port is blocked by spanning treeD
The port has an active link with normal traffic activity
考题
单选题Which of these commands can you use to show if an operational Catalyst switch port is set for autonegotiation of speed and duplex when running Cisco IOS software?（）A
show port networkB
show running-configC
show controllers Ethernet-controllerD
show interfaces
考题
单选题When configuring port security on a Cisco Catalyst switch port， what is the default action taken by the switch if a violation occurs？ （）A
protect （drop packets with unknown source addresses）B
restrict （increment SecurityViolation counter）C
shut down （access or trunk port）D
transition （the access port to a trunking port）
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