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单选题
On switch R1 you issue the "udld enable" global command. What does this command accomplish？ （）
A
Enables all fiber-optic LAN ports for Unidirectional LINK Detection （UDLD）
B
Enables all copper media LAN ports Unidirectional Link Detection （UDLD）
C
Overrides the default UDLS setting for all ports
D
Globally enables all ports on the device for Unidirectional Link Detection （UDLS）
E
None of the other alternatives apply
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更多 “单选题On switch R1 you issue the "udld enable" global command. What does this command accomplish？ （）A Enables all fiber-optic LAN ports for Unidirectional LINK Detection （UDLD）B Enables all copper media LAN ports Unidirectional Link Detection （UDLD）C Overrides the default UDLS setting for all portsD Globally enables all ports on the device for Unidirectional Link Detection （UDLS）E None of the other alternatives apply” 相关考题
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You need to troubleshoot an issue on the switched LAN. When you issue a command "show port3/1" on a switch， you observe the Giants column has a non-zero entry. What could cause this？（）A、IEEE 802.10B、Misconfigured NICC、User configurationD、IEEE 802.1QE、None of the other alternatives apply
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What action should you execute if you wanted to enable VTP pruning on your entire management domain？（）A、 Enable VTP pruning on any client switch in the management domain.B、 Enable VTP pruning on any switch in the management domain.C、 Enable VTP pruning on every switch in the management domain.D、 Enable VTP pruning on a VTP server in the management domain.E、 Disable VTP pruning on a VTP server in the management domain.
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When troubleshooting the issue， you notice the election of a new root bridge with an unknown MAC address. Knowing that all access ports have the PortFast feature enabled， what would be the easiest way to resolve the issue without losing redundant links？（）A、Enable bpduguard globally.B、Enable rootguard.C、Enable loopguard.D、Enable spanning tree.E、Enable UDLD
考题
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
On switch R1 you issue the "udld enable" global command. What does this command accomplish？ （）A、 Enables all fiber-optic LAN ports for Unidirectional LINK Detection （UDLD）B、 Enables all copper media LAN ports Unidirectional Link Detection （UDLD）C、 Overrides the default UDLS setting for all portsD、 Globally enables all ports on the device for Unidirectional Link Detection （UDLS）E、 None of the other alternatives apply
考题
What is the recommended practice regarding UDLD when implementing it in all fiber-optic LAN ports?（）A、Adjust the default hello timers to three seconds for aggressive mode.B、Enable it in global mode and on every interface you need to support.C、Enable it in global mode to support every individual fiber-optic interface.D、Enable it to create channels containing up to eight parallel links between switches.E、Enable it in global mode to support every individual fiber optic and Ethernet interface.
考题
Which of the following should you enable to prevent a switch from forwarding packets with source addresses that are outside an administratively defined group？ （）A、 DAIB、 STPC、 PVLAND、 port security
考题
What is the recommended practice regarding UDLD when implementing it in all fiber-optic LANports？（）A、 Adjust the default hello timers to three seconds for aggressive modeB、 Enable it in global mode and on every interface you need to supportC、 Enable it in global mode to support every individual fiber-optic interfaceD、 Enable it to create channels containing up to eight parallel links between switches
考题
On a Company switch named R1 you configure the following： iparp inspection vlan 10-12， 15 What is the purpose of this global configuration command made on R1？（）A、 Discards ARP packets with invalid IP-to-MAC address bindings on trusted portsB、 Validates outgoing ARP requests for interfaces configured on VLAN 10， 11， 12， or 15C、 Intercepts， logs， and discards ARP packets with invalid IP-to-MAC address bindingsD、 Intercepts all ARP requests and responses on trusted portsE、 None of the other alternatives apply
考题
As a candidate for CCNA examination， when you are familiar with the basic commands， if you input thecommand "enable secret level 5 password" in the global mode ， what does it indicate？（）A、Set the enable secret command to privilege level 5B、The enable secret password is hashed using MD5C、The enable secret password is for accessing exec privilege level 5D、The enable secret password is hashed using SHAE、The enable secret password is encrypted using Cisco proprietary level 5 encryption
考题
If you were to set up a VLAN trunk over a Fast Ethernet link on switch R1， which trunk mode would you set the local port to on R1 if you wanted it to respond to requests from its link partner （R2） and become a trunk？ （）A、 AutoB、 NegotiateC、 DesignateD、 No negotiate
考题
You are maintaining the PROD database for NetFx Corporation. You have configured controlfile autobackup in your database. At 6：00 P.M. on Monday， you issue the following command： RMANBACKUP DATABASE； At 8：00 A.M. on Tuesday， you are unable to start the database because all the control files are missing. You decide to restore the control files from the backup by using the RMAN RESTORE CONTROLFILE FROM AUTOBACKUP； command. Which operation should you perform before using the RMAN RESTORE CONTROLFILE FROM AUTOBACKUP； command？（）A、 Start the database in the MOUNT stage.B、 Back up the control file to trace.C、 Set the DBIDD、 Issue the RECOVER DATABASE command.
考题
What command would you issue to enable automated backups of control files? （）A、alter database controlfile autobacku onB、alter system controlfile autobackup on C、configure controlfile autobackup on D、enable controlfile autobackup
考题
You discover an out-of-space condition in the database. You decide to suspend a session for five minutes. You issue the following command to suspend the session： ALTER SESSION ENABLE RESUMABLE； Which command could you issue to enable the resumable space allocation feature at the session level？（） A、 ALTER SESSION ENABLE RESUMABLE_TIMEOUT = 5；B、 ALTER SYSTEM ENABLE RESUMABLE_TIMEOUT = 5；C、 ALTER SESSION ENABLE RESUMABLE_TIMEOUT = 300；D、 ALTER SYSTEM ENABLE RESUMABLE TIMEOUT = 300；
考题
You have implemented the Hisecws.inf security template on all the Windows 2000 Professional client computers in your network. A user has received a driver and utility software for an internal SCSI controller in his computer. He uses the manufacturer-provided CD to install the driver and the utility. He restarts the computers and reports that the internal SCSI controller is not working correctly. You discover that the driver is not installed correctly. What should you do?（）A、Disable the security template. Reconfigure the driver signing option. Install the driver. Enable the security templateB、Reconfigure the driver signing option. Disable the security template. Install the driver. Enable the security templateC、Run the Sigverif command. Reconfigure the driver signing option. Install the driverD、Run the Sigverif command. Disable the security template. Install the driver. Enable the security templateE、Run the Sfc/cancel command. Install the driver. Run the Sfc/enable command
考题
You have a laptop that doesn’t shut down at all. It stays on the shutdown screen and even if you try to switch it off， it won’t switch off？ （）A、 Enable APM in control panel， power optionsB、 Disable APM in the BIOSC、 Enable hibernate in control panel， power optionsD、 Enable standby in control panel， power option
考题
单选题You have a laptop that doesn’t shut down at all. It stays on the shutdown screen and even if you try to switch it off， it won’t switch off？ （）A
Enable APM in control panel， power optionsB
Disable APM in the BIOSC
Enable hibernate in control panel， power optionsD
Enable standby in control panel， power option
考题
单选题What action should you execute if you wanted to enable VTP pruning on your entire management domain？（）A
Enable VTP pruning on any client switch in the management domain.B
Enable VTP pruning on any switch in the management domain.C
Enable VTP pruning on every switch in the management domain.D
Enable VTP pruning on a VTP server in the management domain.E
Disable VTP pruning on a VTP server in the management domain.
考题
单选题Upon starting your database， you receive the following error： SQL startup ORACLE instance started. Total System Global Area 171581440 bytes Fixed Size 1298640 bytes Variable Size 146804528 bytes Database Buffers 20971520 bytes Redo Buffers 2506752 bytes Database mounted. ORA-00313： open failed for members of log group 1 of thread 1 ORA-00312： online log 1 thread 1： ’/oracle01/oradata/orcl/redo01.log’ ORA-00312： online log 1 thread 1： ’/oracle01/oradata/orcl/redo01a.log’ You can choose from the following steps： a. Restore the database datafiles. b. Issue the alter database clear unarchived logfile group 1 command. c. Issue the alter database open command. d. Issue the alter database open resetlogs command. e. Recover the database using point-in-time recovery. f. Issue the Startup Mount command to mount the database. g. Back up the database. Which is the correct order of these steps in this case？（）A
a， f， e， d， gB
f， e， dC
f， b， c， gD
a， f， cE
The database cannot be recovered.
考题
单选题You need to troubleshoot an issue on the switched LAN. When you issue a command "show port3/1" on a switch， you observe the Giants column has a non-zero entry. What could cause this？（）A
IEEE 802.10B
Misconfigured NICC
User configurationD
IEEE 802.1QE
None of the other alternatives apply
考题
单选题If you were to set up a VLAN trunk over a Fast Ethernet link on switch R1， which trunk mode would you set the local port to on R1 if you wanted it to respond to requests from its link partner （R2） and become a trunk？ （）A
AutoB
NegotiateC
DesignateD
No negotiate
考题
单选题The list below displays four steps that you need to execute in order to switch from the primary database role to the standby database role. Choose the correct order of execution for the steps.（） 1. Shot down and start up the former primary instance without mounting the instance. 2. Issue the ALTER DATABASE COMMIT TO SWITCHOVER TO PHYSICAL STANDBY command. 3. Issue the ALTER DATABASE MOUNTS STANDBY DATABASE command. 4. End read or update activity on the former primary and standby database.A
1，2，3，4B
3，2，4，1C
4，2，1，3D
4，3，2，1
考题
单选题On a Company switch named R1 you configure the following： iparp inspection vlan 10-12， 15 What is the purpose of this global configuration command made on R1？（）A
Discards ARP packets with invalid IP-to-MAC address bindings on trusted portsB
Validates outgoing ARP requests for interfaces configured on VLAN 10， 11， 12， or 15C
Intercepts， logs， and discards ARP packets with invalid IP-to-MAC address bindingsD
Intercepts all ARP requests and responses on trusted portsE
None of the other alternatives apply
考题
单选题What is the recommended practice regarding UDLD when implementing it in all fiber-optic LANports？（）A
Adjust the default hello timers to three seconds for aggressive modeB
Enable it in global mode and on every interface you need to supportC
Enable it in global mode to support every individual fiber-optic interfaceD
Enable it to create channels containing up to eight parallel links between switches
考题
单选题What command would you issue to enable automated backups of control files？（）A
alter database controlfile autobackup onB
alter system controlfile autobackup onC
configure controlfile autobackup onD
enable controlfile autobackup
考题
单选题When troubleshooting the issue， you notice the election of a new root bridge with an unknown MAC address. Knowing that all access ports have the PortFast feature enabled， what would be the easiest way to resolve the issue without losing redundant links？（）A
Enable bpduguard globally.B
Enable rootguard.C
Enable loopguard.D
Enable spanning tree.E
Enable UDLD
考题
单选题You discover an out-of-space condition in the database. You decide to suspend a session for five minutes. You issue the following command to suspend the session： ALTER SESSION ENABLE RESUMABLE； Which command could you issue to enable the resumable space allocation feature at the session level？（）A
ALTER SESSION ENABLE RESUMABLE_TIMEOUT = 5；B
ALTER SYSTEM ENABLE RESUMABLE_TIMEOUT = 5；C
ALTER SESSION ENABLE RESUMABLE_TIMEOUT = 300；D
ALTER SYSTEM ENABLE RESUMABLE TIMEOUT = 300；
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