Multiple choice technology programming languages

How can I tell which version of Unix I am using?

  1. version

  2. version -a

  3. uname

  4. no command

Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

The 'uname' command displays system information including the Unix/Linux version and kernel details. 'version' is not a valid Unix command, and 'uname -a' shows all information but the basic 'uname' command is sufficient to identify the Unix version.