A.[Timer]

B.[Trigger]

C.[Events]

D.[Schedule]

E.[cron]

A.source

B.server

C.clock

D.pool

E.remote

A.ln -s /usr/share/zoneinfo/UTC /etc/localtime

B.date --timezone=UTC

C.mv /usr/timezone/UTC /etc

D.cat UTC > /etc/timezone

A./etc/profile

B./etc/shellenv

C./etc/.bashrc

D./etc/bashrc

E.~/.bash_profil

A.The physical location and the timezone configuration.

B.Adjustment needed to support Daylight Saving Time.

C.The skew in time between the system clock and the computer's hardware clock.

D.Changes in the time zone of the current computer's location.

E.The skew in time between the system clock and the reference clock.