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A strong password should contain:

  • A.Both uppercase and lowercase letters.
  • B.A word that is easy to remember, such as the name of a pet.
  • C.At least 8 characters, and a combination of letters, numbers, and characters. 
  • D.None

Answer: C

Correct answer: At least 8 characters, and a combination of letters, numbers and symbols

Strength comes from length and from the size of the character set, which together determine how many possibilities an attacker must try. Mixed case alone gives too small a gain, and a pet's name is in every dictionary an attacker uses, however easy it is to remember.

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