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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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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
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After enabling port security on a Cisco Catalyst switch， what is the default action when the configuredmaximum of allowed MAC addresses value is exceeded？（）A、The port’s violation mode is set to restrictB、The port is shut downC、The MAC address table is cleared and the new MAC address is entered into the tableD、The port remains enabled， but bandwidth is throttled until old MAC addresses are aged out
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
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 deviceB、A PC pre-configured with a specific IP Address and MaskC、A PC or laptop with Windows 2000 or Windows XP installed and a web browser that has Java Script enabledD、Physical Access to SwitchE、A Switch with no connected devices
考题
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
考题
You are at a client site. It is a medium-sized business and needs a Cisco Catalyst switch that offers high availability and security. What type of Catalyst switches would you recommend？（）A、 Catalyst 2960 SeriesB、 Catalyst 3750 SeriesC、 Catalyst 4900 SeriesD、 Catalyst 6500 Series
考题
Which statement correctly describes network security settings in Cisco Network Assistant for the Catalyst Express 500 Switch？（）A、The LOW setting enables broadcast storm control， but has no effect on the number of devices that can connect to a switch portB、The LOW setting enables broadcast storm control and limits the number of devices that can connect to a switch port.C、The LOW setting disables broadcast storm control but limits the number of devices that can connect to a switch portD、The default network setting is "HIGH"
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 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
The network security policy requires that only one host be permitted to attach dynamically to each switch interfacE.If that policy is violated, the interface should shut down. Which two commands must the network administrator configure on the 2950 Catalyst switch to meet this policy? （）A、Switch1(config-if)# switchport port-security maximum 1B、Switch1(config)# mac-address-table secureC、Switch1(config)# access-list 10 permit ip hostD、Switch1(config-if)# switchport port-security violation shutdownE、Switch1(config-if)# ip access-group 10
考题
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
考题
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 802.11hB、incorrect switch power supplyC、switch port is not enabledD、switch does not support 802.3afE、access point has not been initialized with the primary controller
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
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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
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 802.11hB、incorrect switch power supplyC、switch port is not enabledD、switch does not support 802.3afE、access point has not been initialized with the primary controller
考题
A Cisco Aironet 1020 controller-based access point has been connected to a Catalyst 3550-24 PWRSwitch. However， when it is powered up， the access point fails. What has caused this problem？（）A、access point does not support 802.11hB、incorrect switch power supplyC、switch port is not enabledD、switch does not support 802.3afE、access point has not been initialized with the primary controller
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
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
考题
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.
考题
多选题When using Cisco Network Assistant to configure a WS-CE500-24LC switch， which three are available choices in the port settings window？（）ADuplex mode selectionsBAuto MDIX selectionsCStatus SelectionsDGroup mode selectionsEPort security selections
考题
单选题When configuring a routed port on a Cisco multilayer switch， which of these is a required configuration task that you must perform to enable that port to function as a routed port？ （）A
Enable the switch to participate in routing updates from external devices with the router command in global configuration mode.B
Enter the no switchport command to disable Layer 2 functionality at the interface level.C
Each port participating in routing of Layer 3 packets must have an IP routing protocol assigned on aperinterface level.D
Routing is enabled by default on a multilayer switch， so the port can become a Layer 3 routing interface by assigning the appropriate IP address and subnet information.
考题
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?（）ACreate an additional ACL to block the access to VLAN 1.BMove the management VLAN to something other than default.CMove all ports to another VLAN and deactivate the default VLAN.DLimit the access in the switch using port security configuration.EUse static VLAN in trunks and access ports to restrict connections.FShutdown all unused ports in the Catalyst switch.
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 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After enabling port security on a Cisco Catalyst switch， what is the default action when the configuredmaximum of allowed MAC addresses value is exceeded？（）A
The port’s violation mode is set to restrictB
The port is shut downC
The MAC address table is cleared and the new MAC address is entered into the tableD
The port remains enabled， but bandwidth is throttled until old MAC addresses are aged out
考题
单选题You are at a client site. It is a medium-sized business and needs a Cisco Catalyst switch that offers high availability and security. What type of Catalyst switches would you recommend？（）A
Catalyst 2960 SeriesB
Catalyst 3750 SeriesC
Catalyst 4900 SeriesD
Catalyst 6500 Series
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 statement correctly describes network security settings in Cisco Network Assistant for the Catalyst Express 500 Switch？（）A
The LOW setting enables broadcast storm control， but has no effect on the number of devices that can connect to a switch portB
The LOW setting enables broadcast storm control and limits the number of devices that can connect to a switch port.C
The LOW setting disables broadcast storm control but limits the number of devices that can connect to a switch portD
The default network setting is HIGH
考题
多选题Which three of these pre-requisite for resetting a Catalyst Express 500 switch when Cisco Network Assistant is unavailable？（）AAt Least one enabled switch port that is unconnected to any deviceBA PC pre-configured with a specific IP Address and MaskCA PC or laptop with Windows 2000 or Windows XP installed and a web browser that has Java Script enabledDPhysical Access to SwitchEA Switch with no connected devices
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