cron后台常驻程序用于:()A、负责文件在网络中的共享B、管理系统日常任务的调度C、跟踪管理系统信息和错误D、管理打印子系统Manages the printing subsystem
cron后台常驻程序用于:()
- A、负责文件在网络中的共享
- B、管理系统日常任务的调度
- C、跟踪管理系统信息和错误
- D、管理打印子系统Manages the printing subsystem
相关考题:
On后台常驻程序(daemon)用于()。A.负责文件在网络中的共享B.管理打印子系统Manages the printing subsystemC.跟踪管理系统信息和错误D.理系统日常任务的调度(scheduling)
Howwouldasystemadministratorreviewroot’scurrentcronjobsofthefollowing?() A.crontab-lB.cron-lrootC.lscron-lrootD.cat/var/cron/crontabs/root
ASystempadministratorsuspectstheyarereceivinganerrorfromoneoftheirnightlycronjobs.Thejobis:01***/usr/local/bin/nightlycheck.plWhereshouldtheadministratorfirstlookforerrorsreportedbythiscronjob() A./var/log/syslog.outB.var/log/cron.logC./var/spool/cron/logsD.mail
cron后台常驻程序(daemon)用于()。A、负责文件在网络中的共享B、管理打印子系统Manages the printing subsystemC、跟踪管理系统信息和错误D、管理系统日常任务的调度(scheduling)
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
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
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
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
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
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
cron有哪两种配置文件()。A、/etc/crontab,全局配置文件B、crontab命令生成的配置文件,属于用户级C、/etc/cron:全局配置文件D、/etc/crontab,用户级配置文件
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.outBvar/log/cron.logC/var/spool/cron/logsDmail
单选题How would a system administrator review root’s current cron jobs of the following?()Acrontab -lBcron -l rootClscron -l rootDcat /var/cron/crontabs/root
多选题对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cronDcron.allow和cron.deny同时存在时,只有cron.deny中的用户被拒绝
多选题cron有哪两种配置文件()。A/etc/crontab,全局配置文件Bcrontab命令生成的配置文件,属于用户级C/etc/cron:全局配置文件D/etc/crontab,用户级配置文件
单选题cron后台常驻程序(daemon)用于()。A负责文件在网络中的共享B管理打印子系统Manages the printing subsystemC跟踪管理系统信息和错误D管理系统日常任务的调度(scheduling)
问答题说明cron程序的工作原理。