Gce Model Questions Vol1 2020 Computer Studies Question 22

Practice objective / multiple choice question 22 from the 2020 Gce Model Questions Vol1 Computer Studies examination.

Gce Model Questions Vol1 2020 Computer Studies Objective / Multiple Choice Medium Difficulty
Question 22 GCE_MODEL_QUESTIONS_VOL1 • 2020 • COMPUTER_STUDIES • objective

A company requires passwords of length 8 that may use uppercase letters (26), lowercase letters (26) and digits (10). Each password must contain at least one digit. How many possible passwords satisfy the policy, and what is the probability that a random password guess meets the policy and is correct on the first try?

Answer Options

A. Number of passwords = 62^8 - 52^8; probability = 1\/(62^8)
Correct Answer B. Number of passwords = 62^8 - 52^8; probability = 1/(62^8 - 52^8)
C. Number of passwords = 62^8 - 52^7; probability = 1\/(62^8 - 52^7)
D. Number of passwords = 62^8 - 36^8; probability = 1\/(62^8 - 36^8)
Correct Answer
B
Correct Option:
Number of passwords = 62^8 - 52^8; probability = 1/(62^8 - 52^8)

About This Question

This is Gce Model Questions Vol1 2020 Computer Studies Question 22. It is one of the objective questions from the 2020 Gce Model Questions Vol1 Computer Studies examination.

Difficulty level: Medium .

View More Gce Model Questions Vol1 2020 Computer Studies Questions More Gce Model Questions Vol1 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