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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 subsystem
- C、跟踪管理系统信息和错误
- D、管理系统日常任务的调度（scheduling）
参考答案
更多 “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）” 相关考题
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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)
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What are two Junos processes?()
A. OSPF SPF daemon (ospfd)B. SNMP daemon (snmpd)C. BGP daemon (bgpd)D. Routing protocols daemon (rpd)
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Where is the run date for an ‘at’ job located?()
A.Within the job environment set upB.Within the user data of the at jobC.In the file name preceeded with a useridD.In a special file used by the cron daemon
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Howwouldasystemadministratorreviewroot’scurrentcronjobsofthefollowing?()
A.crontab-lB.cron-lrootC.lscron-lrootD.cat/var/cron/crontabs/root
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ASystempadministratorsuspectstheyarereceivinganerrorfromoneoftheirnightlycronjobs.Thejobis:01***／usr／local／bin／nightlycheck.plWhereshouldtheadministratorfirstlookforerrorsreportedbythiscronjob()
A./var/log/syslog.outB.var/log/cron.logC./var/spool/cron/logsD.mail
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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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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
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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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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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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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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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Where is the run date for an ’at’ job located？（）A、Within the job environment set upB、Within the user data of the at jobC、In the file name preceeded with a useridD、In a special file used by the cron daemon
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Which of the following is TRUE about error processing?（）A、The error daemon runs in the foreground and reads the /etc/errpt file. B、The error daemon is invoked by the user when required and it reads the /usr/lib/errpt. C、The error daemon is invoked whenever the error occurs and it reads the /usr/lib/errpt. D、The error daemon /usr/lib/errdemon runs in the background on most machines and reads the /dev/error special file.
考题
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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多选题What are two Junos processes?（）AOSPF SPF daemon (ospfd)BSNMP daemon (snmpd)CBGP daemon (bgpd)DRouting protocols daemon (rdp)
考题
单选题Which of the following is TRUE about error processing?（）A
The error daemon runs in the foreground and reads the /etc/errpt file. B
The error daemon is invoked by the user when required and it reads the /usr/lib/errpt. C
The error daemon is invoked whenever the error occurs and it reads the /usr/lib/errpt. D
The error daemon /usr/lib/errdemon runs in the background on most machines and reads the /dev/error special file.
考题
单选题Where is the run date for an ‘at’ job located?（）A
Within the job environment set upB
Within the user data of the at jobC
In the file name preceeded with a useridD
In a special file used by the cron daemon
考题
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
考题
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
考题
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）
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