Neco 2017 Data Processing Question 49

Practice objective / multiple choice question 49 from the 2017 Neco Data Processing examination.

Neco 2017 Data Processing Objective / Multiple Choice Medium Difficulty
Question 49 NECO • 2017 • DATA_PROCESSING • objective

A company backs up its data weekly using two independent media. The magnetic‑tape backup fails with probability \(0.02\) per year, and the cloud backup fails with probability \(0.01\) per year. Failures are independent. Assuming a failure of both media within the same week results in total data loss, compute:\n\n1. The probability that total data loss occurs in a given year.\n2. The expected number of years before total data loss occurs.

Answer Options

A. Probability \approx 7.4\times10^{-8}; Expected years \approx 1.4\times10^{7}
B. Probability \approx 2.0\times10^{-4}; Expected years \approx 5.0\times10^{3}
C. Probability \approx 3.0\times10^{-2}; Expected years \approx 3.3\times10^{1}
Correct Answer D. Probability \approx 3.85\times10^{-6}; Expected years \approx 2.6\times10^{5}
Correct Answer
D
Correct Option:
Probability \approx 3.85\times10^{-6}; Expected years \approx 2.6\times10^{5}

About This Question

This is Neco 2017 Data Processing Question 49. It is one of the objective questions from the 2017 Neco Data Processing examination.

Difficulty level: Medium .

View More Neco 2017 Data Processing 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