Which of the following commands should be used to watch system errors as they are logged？（） errpt -c。 tail -f /var/adm/ras/errlog。 syslogd -d。 /usr/lib/errdemon -s 8192。
A backup is taken using the following command:tar -cvf abcdef.tar /usr/local/include/tcpd.h The operator is in the directory /usr/local/restores and runs the following command: tar -xvf abcdef.tar. Where will the file be restored?（） /usr/local/include/tcpd.h。 /usr/local/restores/tcpd.h。 /usr/local/restores/include/tcpd.h。 /usr/local/restores/usr/local/include/tcpd.h。
烈性噬菌体
课程评价包括（）、（）、（）三方面的评价。
Which of the following commands should be used to obtain a detailed output of the system error log?（） errpt -d 。 errpt -a 。 errpt -D 。 errpt -i /var/adm/ras/diag_log。
常用的离合器分为（）式和摩擦式两大类。
