Neco 2018 Computer Studies Question 9

Practice objective / multiple choice question 9 from the 2018 Neco Computer Studies examination.

Neco 2018 Computer Studies Objective / Multiple Choice Medium Difficulty
Question 9 NECO • 2018 • COMPUTER_STUDIES • objective

A password policy requires passwords to be exactly 8 characters long, each character chosen from the 94 printable ASCII characters. Thus the total password space contains \(94^{8}\) possible passwords. An attacker can compute hashes at a rate of \(2^{30}\) hashes per second using a GPU. Estimate the expected time, in years, to exhaust the entire password space. Based on your result, comment on whether such a brute‑force attack is feasible within one year.

Answer Options

A. Approximately 0.018 years (about 6.6 days); therefore the attack is feasible within a year.
B. Approximately 1.8 years (about 660 days); therefore the attack is not feasible within a year.
C. Approximately 18 years (about 6570 days); therefore the attack is not feasible within a year.
Correct Answer D. Approximately 0.18 years (about 66 days); therefore the attack is feasible within a year.
Correct Answer
D
Correct Option:
Approximately 0.18 years (about 66 days); therefore the attack is feasible within a year.

About This Question

This is Neco 2018 Computer Studies Question 9. It is one of the objective questions from the 2018 Neco Computer Studies examination.

Difficulty level: Medium .

View More Neco 2018 Computer Studies Questions More Neco Practice Questions Back to Questions

Master the Exam!

You've seen a preview, but there are thousands more questions plus AI tutor to break down complex solutions.

Unlock Full Access Available for Android & Windows
Chat with Support