The most common systems security method is
D. all of the above
E. None of the above
Answer: Option A
Solution(By Examveda Team)The most common systems security method is passwords.
Password : A password is a string of characters used for authenticating a user on a computer system. Most passwords are comprised of several characters, which can typically include letters, numbers, and most symbols, but not spaces.
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C. Write file
D. Control panel