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

题目

单选题

How would a system administrator review root’s current cron jobs of the following？（）

crontab -l

cron -l root

lscron -l root

cat /var/cron/crontabs/root

参考答案和解析

正确答案： C

解析：暂无解析

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第1题

查看root用户的cron计时器设置的命令是（）。A、crontab-u root -lB、crontab -lC、crontab -u root -eD、crontab -u root -r

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第2题

对cron的访问控制说法正确的是（）。A、默认情况下，所有用户都能访问cronB、若需要对cron进行访问控制，可以生成/etc/cron.allow与/etc/cron.deny文件C、存在/etc/cron.allow文件时，只有cron.allow文件中允许的用户才能访问cronD、cron.allow和cron.deny同时存在时，只有cron.deny中的用户被拒绝

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第3题

哪两个文件控制访问crontab命令（）A、/etc/cron/cronusersB、/var/crom/cronnousersC、/etc/cron.d/cron.allowD、/etc/cron.d/cron.deny

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第4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？（）A、 cd /var/spool/cron/crontabs，uncomment the lines in the adm file， in order to start gathering statistics.B、 cd /var/spool/cron/crontabs； uncomment the lines in the sys file， in order to start gathering statistics.C、 cd /usr/lib/cron/； vi the adm file； startsrc -s sadcD、 cd /usr/lib/cron/； vi the sys file； startsrc -s sadc

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第5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6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7题

An operator wants to view all the scheduled jobs on a system. Which of the following locations would house scheduled jobs?（）A、/etc/var/spoolB、/var/spool/cronC、/var/sched/jobsD、/usr/sched/crontabs

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IBM(000-232)

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

题目

参考答案和解析

更多“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”相关问题

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