Free Bachelor of Computer Science Degree MCQ Questions and Answers

Question 1

The bank will request your phone number when you visit to open a new account so they can link it to your account in the event of an incident. Which of the following best sums up the justification?

Accepted Answer

It is done to set up multi-factor authentication

Answer

It is done to protect the account from phishing attempts

Answer

It is done to set up asymmetric authentication mechanisms

Answer

It is to alleviate privacy concerns

Question 2

In order to quickly complete all tasks by dividing the vast amount of data into smaller pieces and distributing them to different computer equipment for sequential processing, an organization has built up a parallel computing system.
The company, however, requests that its staff refrain from connecting any new devices to the system. If the company decides against further segmenting the tasks, what could be a potential justification for the restriction?

Accepted Answer

Additional devices do not increase the speed of the sequential processing

Answer

Additional devices do not increase parallel data processing speed.

Answer

Additional devices require more connection power and space

Answer

There are limited connection configurations for additional devices

Question 3

Which of the following codes, when run, will result in a TRUE statement?

Accepted Answer

((true OR false) AND NOT (false OR NOT (true))

Answer

((NOT(true AND false)) AND (false OR true))

Answer

((NOT (true)) OR (false AND true))

Answer

((true AND false) AND (false OR true))

Question 4

You create a program that enables you to do several mathematical operations (such as addition, subtraction, multiplication, and division) on a collection of integers taken from a database.
The real test results, however, return a random value, which makes you believe that your code contains a randomizing variable.

Accepted Answer

Rerunning the code

Answer

Using DISPLAY statements at different points of code

Answer

Code Tracing

Answer

Using a code visualizer

Question 5

On a computer, musicians record their songs. They are disappointed by the lower-than-expected sound quality they hear when they play back a digital copy of their song. Which of the following might explain why this discrepancy might exist?

Accepted Answer

The song file was saved with lower bits per second

Answer

The recording was done through the lossless compression technique

Answer

The file was moved from the original location, causing some information to be lost

Answer

The song file was saved with higher bits per second

Question 6

90% of the students who took the most recent AP exam at one school passed it. The school intends to leverage this success to promote its offerings to potential students' families.
Which approach from the list below would be best for summarizing this information and giving it to the families?

Accepted Answer

Post an interactive pie chart about the topics and scores of the passing students on the schools' website.

Answer

Create a report based on the student body's overall performance for a marketing pamphlet.

Answer

Post the results of the passing students on social media sites.

Answer

Email the prospective families that have middle-school-age children.

Question 7

A code is created by a programmer to analyze the population's middle age. Only those who meet the 42-year-old threshold are classified as middle-aged people.
The two conditional statements that can be used to create the algorithm are illustrated below. Will the operations in the two statements be the same?
I. IF (older than 42)
II. IF NOT (younger than 42)

Accepted Answer

No

Answer

Only if all ages are even numbers above 42

Answer

Only if all ages are 42

Answer

Yes