Linux include the os various utilities software applications and an office suite

Q13 what function does a security certificate perform? a. creates user accounts b. scrambles data c. identifies users d. creates password policies e. provides file access

Explain how email technologies enable the exchange of messages between users. find out the typical parts of an email address and explain each part.

Does anybody know how to hack into a google account? i had important information on it and it is gone now and i need getting it back.