In order to prevent unauthorized access, how can the shadow file be configured to enforce a password policy? what happens to accounts with expired passwords?

Answer : The securtiy of the password can be maitained by the shadow files such as:-

For a certain period of time , the user can access the log in when the password has expired . If that period is timed out then there will be no log in option and the account gets disabled.

a) click on any cells in the range of data

b) click the data

c) click sort& filter group, click sort

d) select the column to sort by and then select a sort order

e) select the next column to sort by and select the sort order

f) click ok