Question

Which statement about deferred job scheduling is most correct?

a)at is a GUI application that is used to schedule jobs.
b)To schedule a job for 3PM, use the keyword teatime.
c)The at command is used at the command line to schedule deferred tasks.
d)The watch at command is used to replay at job execution.
e)at commands must be input at the command line, and does not allow input redirection from a file.

Answer 1

The most correct statement about deferred job scheduling is that the at command is used at the command line to schedule deferred tasks. The correct option is c) The at command is used at the command line to schedule deferred tasks.

Step-by-step explanation:

The most correct statement about deferred job scheduling is: c) The at command is used at the command line to schedule deferred tasks. The at command is a command-line utility that allows you to schedule commands to be executed once at a specific time in the future.

It is not a graphical user interface (GUI) application, which addresses option a. Option b is incorrect because there is no keyword teatime associated with the at command for scheduling jobs. Regarding option d, watch is not used in conjunction with at to replay executed jobs. Lastly, option e is incorrect because the at command can indeed accept input redirection from a file, allowing for scheduled commands to be input from a script or another file. The correct option is c) The at command is used at the command line to schedule deferred tasks.