https://examsdigest.com/courses/comptia-a-core-2-220-1002/
17 linux commands
cmd commands
ports
pop 110 imap 143
25 smpt
7 step malaware
bgn - 2.4 ghz
b- 11mb g- 54mb
n- 108-600mb sometime 5ghz
a ac some n 5ghz