Long passwords that use several types of keyboard characters are called ________ passwords.

• A. complex
• B. dictionary
• C. one-time
• D. reusable

Answer: (A)

Password strength increases when a password is long and uses a mix of character types (uppercase, lowercase, numbers, and special symbols). Long passwords that use several types of keyboard characters are called complex passwords because the variety of characters greatly expands the possible combinations, making guesses much harder. This added complexity raises entropy, so attackers must try far more possibilities, reducing the likelihood of a successful attack.

Dictionary passwords rely on common words or phrases and are vulnerable to targeted dictionary attacks. One-time passwords are valid only for a single login or session, then expire. Reusable passwords can be used across multiple sessions or services, which is riskier if any one site is compromised.