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单选题
What is the correct command to display the current working directory?（）
A
echo $PWD
B
echo $pwd
C
echo $CWD
D
echo $cwd
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What does the command show | compare rollback 1 display?（）A、the difference between the current candidate configuration and the candidate configuration from one commit agoB、the difference etween the current active configuration and the active configuration from the one commit agoC、the difference between the current active configuration and the active configuration from one commit agoD、the difference between the current candidate configuration and the archived configuration from one commit ago
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What accurately describes the usage of a Cisco AutoQoS command？（）A、on Catalyst switches， the show auto discovery qos command is used to display the data collected during the Auto-Discovery phaseB、on Catalyst switches， the show auto qos command is used to display packet statistics of all classes that are configured for all service policiesC、on Cisco routers， the show mls qos maps command is used to verify the CoS-to-DSCP maps for egress packet queuingD、on Cisco routers， the show auto qos command is used to display the AutoQoS interface templates， policy maps， class maps， and ACLs
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Which command will display the current control key settings？（）A、’tty-l’B、’stty-a’C、’lstty-a’D、’terminfo-l’
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Which command will display the current control key settings？（）A、‘tty -l’B、‘stty -a’C、‘lstty -a’D、‘terminfo -l’
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What does the command show | compare rollback 1 display?（）A、the difference between the current candidate configuration and the candidate configuration from one commit agoB、the difference between the current active configuration and the current candidate configurationC、the difference between the current active configuration and the active configuration from one commit agoD、the difference between the current candidate configuration and the archived configuration from one commit ago
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单选题You wish to upgrade the IOS of a router without removing the image currently installed.What command will display the amount of memory that is being used by the current IOS image and whether there is enough room available to hold both the current and new images?（）A
Router# show versionB
Router# show flashC
Router# show memoryD
Router# show buffersE
Router# show running-configF
All of the above
考题
单选题What information does the help reference command provide?（）A
A brief description of commands and their default valuesB
The serial number and version number of the device used to open a support case with JTACC
A list of all the active hardware alarms on the deviceD
A display of the current configuration while in operational mode
考题
单选题What does the command show | compare rollback 1 display?（）A
the difference between the current candidate configuration and the candidate configuration from one commit agoB
the difference between the current active configuration and the current candidate configurationC
the difference between the current active configuration and the active configuration from one commit agoD
the difference between the current candidate configuration and the archived configuration from one commit ago
考题
单选题What is the purpose using the traceroute command?（）A
to map all the devices on a network.B
to display the current TCP/IP configuration values.C
to see how a device MAC address is mapped to its IP address.D
to see the path a packet will take when traveling to a specified destination.E
to display the MTU values for each router in a specified network path from source to a destination.
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The /etc/filesystems file is missing.B
The /dev/hd8 logical volume is corrupt.C
The hosting volume group is not varied on.D
The /var and /tmp filesystems may be full.
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单选题You issue the following command on the RMAN prompt. REPORT NEED BACKUP DAYS 5； Which statement is true about executing this command？（）A
It will display a list of files that need incremental backupB
It will display a list of files that need backup after five daysC
It will display a list of files that were backed up in the last five daysD
It will display a list of files that have not been backed up in the last five daysE
It will apply the current retention policy to determine the files that need to be backed up
考题
单选题What does the command show | compare rollback 1 display?（）A
the difference between the current candidate configuration and the candidate configuration from one commit agoB
the difference etween the current active configuration and the active configuration from the one commit agoC
the difference between the current active configuration and the active configuration from one commit agoD
the difference between the current candidate configuration and the archived configuration from one commit ago
考题
单选题Which command will display the current control key settings？（）A
‘tty -l’B
‘stty -a’C
‘lstty -a’D
‘terminfo -l’
考题
单选题You issue the following command on the RMAN prompt. REPORT NEED BACKUP DAYS 5; Which statement is true about executing this command?（）A
It will display a list of files that need incremental backupB
It will display a list of files that need backup after five daysC
It will display a list of files that were backed up in the last five daysD
It will display a list of files that have not been backed up in the last five daysE
It will apply the current retention policy to determine the files that need to be backed up
考题
单选题Which command will display the current control key settings？（）A
’tty-l’B
’stty-a’C
’lstty-a’D
’terminfo-l’
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