Neco 2017 Computer Studies Question 42

Practice objective / multiple choice question 42 from the 2017 Neco Computer Studies examination.

Neco 2017 Computer Studies Objective / Multiple Choice Medium Difficulty
Question 42 NECO • 2017 • COMPUTER_STUDIES • objective

An organization requires passwords that are exactly \(8\) characters long. Each character can be an uppercase letter (A\u2013Z), a lowercase letter (a\u2013z), or a digit (0\u20139). The password must contain at least one digit and at least one uppercase letter. How many different passwords satisfy this policy? Express your answer as a formula.

Answer Options

Correct Answer A. \(62^{8} - 52^{8} - 36^{8} + 26^{8}\)
B. \(62^{8} - 52^{8} - 36^{8} - 26^{8}\)
C. \(62^{8} - 52^{8} - 36^{8}\)
D. \(62^{8} - 52^{8} + 36^{8} - 26^{8}\)
Correct Answer
A
Correct Option:
\(62^{8} - 52^{8} - 36^{8} + 26^{8}\)

About This Question

This is Neco 2017 Computer Studies Question 42. It is one of the objective questions from the 2017 Neco Computer Studies examination.

Difficulty level: Medium .

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