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單項選擇題

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.out
B.var/log/cron.log
C./var/spool/cron/logs
D.mail

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