单选题A System p administrator suspects they are receiving an error from one of their nightly cron jobs. Thejob is： 0 1 * * * /usr/local/bin/nightlycheck.pl Where should the administrator first look for errors reported by this cron job（）A /var/log/syslog.out

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单选题

A System p administrator suspects they are receiving an error from one of their nightly cron jobs. Thejob is： 0 1 * * * /usr/local/bin/nightlycheck.pl Where should the administrator first look for errors reported by this cron job（）

/var/log/syslog.out

/var/log/cron.log

/var/spool/cron/logs

mail

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单选题A System p administrator is reviewing root’s command history on a development server and finds that a junior adminstrator had been attempting to correct a full file system. One of the following commands caused damage that must be corrected. Which command was it（）A rm /var/preserve/*B cat /dev/null > /var/adm/cron/logC > /var/adm/wtmpD rm /var/adm/ras/errlog

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第2题

单选题Which procedure should be used to configure the system to prevent all users from using the ’at’ command（）？A Create a /var/adm/cron/at.allow file with no entriesB Create a /var/adm/cron/at.deny file with ’*’ as the only entryC Create a /var/adm/at/at.deny file with ’ALL’ as the only entryD Create a /var/adm/at/at.allow file with ’NONE’ as the only entry

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第3题

单选题Which cron entry will run /usr/local/bin/myscript at 0500 every Saturday（）A 5 0 * * 6 /usr/local/bin/myscriptB 6 * * 5 0 /usr/local/bin/myscriptC 0 5 * * 6 /usr/local/bin/myscriptD 0 5 6 * * /usr/local/bin/myscript

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第4题

单选题A system administrator wants to run a script called myscript， but does not want to see the errors that might be generated by the script. How would this be accomplished？（）A /usr/local/bin/myscript > /dev/nullB /usr/local/bin/myscript /dev/nullD /usr/local/bin/myscript 1> /dev/null

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第5题

单选题How would a system administrator review root’s current cron jobs of the following？（）A crontab -lB cron -l rootC lscron -l rootD cat /var/cron/crontabs/root

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第6题

单选题A System p administrator suspects they are receiving an error from one of their nightly cron jobs. The job is： 0 1 * * * /usr/local/bin/nightlycheck.pl Where should the administrator first look for errors reported by this cron job（）A /var/log/syslog.outB var/log/cron.logC /var/spool/cron/logsD mail

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第7题

单选题A small company would like help in identifying an apparent system performance problem on its internal mail server， especially to determine peak hour usage. What would be the first step in identifying the problem？（）Acd /var/spool/cron/crontabs，uncomment the lines in the adm file， in order to start gathering statistics.Bcd /var/spool/cron/crontabs； uncomment the lines in the sys file， in order to start gathering statistics.Ccd /usr/lib/cron/； vi the adm file； startsrc -s sadcDcd /usr/lib/cron/； vi the sys file； startsrc -s sadc

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单选题A System p administrator suspects they are receiving an error from one of their nightly cron jobs. Thejob is： 0 1 * * * /usr/local/bin/nightlycheck.pl Where should the administrator first look for errors reported by this cron job（）A /var/log/syslog.out

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