Which command can you use to see the overall memory usage, including available swap space?

exams 101-500 101-500 exam 0 Comments

Users are reporting that various programs are crashing on the server. When examining logs, you see that certain processes are reporting out-of-memory conditions.

Which command can you use to see the overall memory usage, including available swap space?
A . free
B . tree
C . uptime
D . pgrep

Answer: A