Which among the following is true for Password?1). It is a word or string of characters used for user authentication2). It should be kept secret from those not allowed access3). Upper case or lower case or Digits are necessary in password4). Requiring periodic password changes, Requiring minimum password lengths

Which among the following is true for Password?1). It is a word or str

1.	Which among the following is true for Password?1). It is a word or string of characters used for user authentication2). It should be kept secret from those not allowed access3). Upper case or lower case or Digits are necessary in password4). Requiring periodic password changes, Requiring minimum password lengths
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