A.Year

B.Minute

C.Username

D.Effective group ID

E.Command

A.fsync

B.fast

C.quickstart

D.flood

E.iburst

A.Timer units can only be defined within a service unit's file.

B.The command executed by the timer is specified in the timer unit's [Cmd]section.

C.A dedicated system service, systemd-cron, handles the execution of timer units.

D.Timer units only exist in the system scope and are not available for users.

E.Each systemd timer unit controls a specific systemd service unit.

A.ssh -o Port=2222 example.com

B.ssh -o GatewayPort=2222 example.com

C.ssh --port 2222 example.com

D.ssh -p 2222 example.com

E.ssh example.com:2222