Neco 2018 Data Processing Question 38

Practice objective / multiple choice question 38 from the 2018 Neco Data Processing examination.

Neco 2018 Data Processing Objective / Multiple Choice Hard Difficulty
Question 38 NECO • 2018 • DATA_PROCESSING • objective

A company employs 200 staff members. Each employee uses a password that is changed every 90 days. The probability that a given password is guessed in a brute‑force attack within the 90‑day period is 0.001. If a password is compromised, the average loss per incident is $1 500. The company is considering two‑factor authentication (2FA). 2FA reduces the probability of a successful compromise by 90 % but costs $5 per user per month. Calculate: 1. The expected annual loss due to password compromises without 2FA. 2. The expected annual loss with 2FA, including the annual cost of the 2FA service. 3. Based on these figures, should the company adopt 2FA? Justify your answer.

Answer Options

Correct Answer A. Annual loss without 2FA = $1,200; with 2FA = $12,120 (including service cost). The company should NOT adopt 2FA because it raises total cost by $10,920.
B. Annual loss without 2FA = $1,800; with 2FA = $13,500 (including service cost). The company should adopt 2FA because it reduces total cost by $1,700.
C. Annual loss without 2FA = $2,400; with 2FA = $12,120 (including service cost). The company should NOT adopt 2FA because it raises total cost by $9,720.
D. Annual loss without 2FA = $1,200; with 2FA = $9,120 (including service cost). The company should adopt 2FA because it lowers total cost by $3,120.
Correct Answer
A
Correct Option:
Annual loss without 2FA = $1,200; with 2FA = $12,120 (including service cost). The company should NOT adopt 2FA because it raises total cost by $10,920.

About This Question

This is Neco 2018 Data Processing Question 38. It is one of the objective questions from the 2018 Neco Data Processing examination.

Difficulty level: Hard .

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