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Which of the following controls should be used together…

A recent audit has discovered that at the time of password expiration clients are able to recycle the previous
credentials for authentication. Which of the following controls should be used together to prevent this from
occurring? (Choose two.)

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A.
Password age

B.
Password hashing

C.
Password complexity

D.
Password history

E.
Password length

Explanation:
D: Password history determines the number of previous passwords that cannot be used when a user changes
his password. For example, a password history value of 5 would disallow a user from changing his password to
any of his previous 5 passwords.
A: When a user is forced to change his password due to a maximum password age period expiring, he could
change his password to a previously used password. Or if a password history value of 5 is configured, the user
could change his password six times to cycle back round to his original password. This is where the minimum
password age comes in. This is the period that a password must be used for. For example, a minimum
password age of 30 would determine that when a user changes his password, he must continue to use the
same password for at least 30 days.

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