Which of the following would constitute the best example of a password to use for access to a system by a network administrator?
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A. B. C. D.D.
GyN19Za! would be the the best answer because it contains a mixture of upper and lower case characters, alphabetic and numeric characters, and a special character making it less vulnerable to password attacks.
All of the other answers are incorrect because they are vulnerable to brute force or dictionary attacks.
Passwords should not be common words or names.
The addition of a number to the end of a common word only marginally strengthens it because a common password attack would also check combinations of words: Christmas23 - Christmas123 - etc...
The best example of a password for a network administrator to use for accessing a system would be D. GyN19Za!.
The reasons for this are:
Complexity: The password includes a combination of uppercase and lowercase letters, numbers, and symbols. This makes it much harder to guess or crack using brute force methods.
Length: The password is relatively long, which also adds to its complexity and makes it harder to crack.
Unpredictability: The password does not include any easily guessable information such as common words, names, or dates. This makes it harder to guess based on personal knowledge or social engineering.
In contrast, the other options are not as strong:
A. "holiday" is a common word and would be easily guessable or crackable. B. "Christmas12" includes a common word and a simple numerical sequence, making it vulnerable to dictionary attacks. C. "Jenny" is a common name and would be easily guessable or crackable.
Overall, a strong password should be complex, lengthy, and unpredictable. GyN19Za! meets all these criteria, making it the best choice for a network administrator's password.