Answers VA-Information Technology Fundamentals BUnit Test

Unit Test Answers

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Which of the following is an object-oriented programming language?

Ada

COBOL

Pascal

Python

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What is one purpose of an algorithm?

to reduce error

to show how to use a computer

to eliminate step-by-step instructions

to eliminate smaller tasks

Which programming language was released first?

FORTRAN

BASIC

Perl

Pascal

Which of the following is a unique feature of Object-oriented programming?

They have syntax.

They are web-based.

They use objects that contain data and functions.

They are interpreted by compilers into binary machine language.

Which statement best describes the problem statement below?Vision: We want to decrease errors in our billings to clients.Issue: Clients complain that they receive multiple bills for the same month. We have one software that keeps track of services made to clients, another software that keeps track of the charges of those services, and another software that bills the clients.Method: Print out services and charges, and enter these values into a billing software.

This problem statement is a clear, well-defined problem statement.

This problem statement does not clearly define the issues.

This problem statement will help stakeholders participate in addressing the problem.

This problem statement does not provide a useful statement of method.

Which statement is true?

A problem statement ensures that the final design benefits the business.

A problem statement ensures that the final design will be acceptable to competitors.

A problem statement gives a plan that does not directly address the problem.

A problem statement offers many ways to solve a given problem.

Which programming language uses objects?

C++

ALGOL

Pascal

BASIC

What are the three types of programming design?

top-down, structured, objectified

top-down, structured, object-oriented

simple, structured, objectified

simple, structured, bottom-up

Which of the following explains why computers can be used in accounts payable?

Computers can use random steps to identify the due dates of payments.

Computers can be automated to process invoices without direction.

Computers can find the due dates of payments differently each month.

Computers can identify criteria related to payments and take specified action.

Which pseudocode represents the flowchart?

Input lengthInput widthCalculate volume =length ´ width ´ heightPrint volume

Input lengthInput widthInput heightCalculate volume =length ´ width ´ height

Input lengthInput widthInput heightPrint volume

Input lengthInput widthInput heightCalculate volume =length ´ width ´ heightPrint volume

What happens in the process represented by the pseudocode below?get(answer)if(answer is yes)then(multiply 4 and 9)if(answer is no)then(do nothing)

The computer multiplies 4 and 9 if the answer is yes.

The computer multiplies 4 and 9 if the answer is no.

The computer always multiplies 4 and 9.

The computer always does nothing.

Which uses flowcharts to communicate?

incremental project design

solution modeling

programming code

writing the problem statement

Which shape denotes a process to be carried out in a flowchart?

an oval

a parallelogram

a rectangle

a diamond

Which is true regarding pseudocode?

It uses simple words and symbols to communicate the design of a program.

It compiles and executes code.

It expresses only complex processes.

It gives a graphical representation of a set of instructions to solve a problem.

A programmer is responsible for solving a problem and making a presentation that includes his solution. He does not have much room to show the steps, so he uses mostly words and a few symbols. For this presentation he decides to use

a flowchart because pseudocode is harder to write and understand.

pseudocode because it gives a summary of the process with concise words and symbols.

a flowchart because it requires special training to understand.

pseudocode because it uses pre-defined shapes to show the steps.

Why is it important to begin development of a software solution with a programming design in place?

A programming design summarizes the results of a software development process.

A programming design summarizes the marketability of a software solution and the strategy for product placement.

A programming design communicates decisions about the programming approach and saves time, money, and effort.

A programming design communicates decisions about the approach for hiring contractors and saves time, money, and effort.

Which statement about symbols of a flowchart is true?

An oval represents an input or output operation.

A diamond represents the start and end of a program.

A rectangle represents a process to be carried out.

A parallelogram represents a decision or branching point.

Which statement is true?

Bill Gates and Guido van Rossum cofounded Microsoft.

Bjarne Stroustrup published the first reference guide for C++.

Paul Allen developed object-oriented programming.

John McCarthy led a team that developed FORTRAN.

How does the use of modules provide flexibility in a structured programming design?

Modules enable multiple programmers to work on a program at the same time

Modules enable a linear approach to software development

Modules ensure the reuse of code variables.

Modules ensure that a program will be completed on time.

Which task is most suitable for creating an algorithm?

saving time writing a report

explaining how to set up a mobile phone for use

choosing photos to put on a website

finding the best of three suggested routes to drive to a concert

A software development team must choose a type of programming design that will provide them with the ability to make changes to the code at any time during the development cycle. Also, the design must enable the developers to easily reuse code in other programs. What programming design should the team choose?

structural

object-oriented

objective

top-down

Why does a business need to use effective strategies to find a solution for a problem?

to thoroughly understand the problem

to find several solutions to a problem

to properly diagram the flow of information to solve the problem

to find a solution that cannot be replicated

One evening, a teacher uses a computer program to record each student’s test grade. She then uses the program to calculate each student’s test average for the year. The teacher then plans her lessons for the following week. Which of the following best explains how the computer algorithm helps the teacher?

It gives the teacher step-by-step directions on how to grade tests.

It makes a simple task more complex for the teacher.

It reduces the errors the teacher makes in writing tests.

It saves time for the teacher so that she can do other tasks.

Which statement best describes the problem statement below?Vision: We want to sell more products.Issue: It may be that we have too many salespersons.Method: Design new software to track how much each salesperson sells.

This problem statement is a clear, well-defined problem statement.

This problem statement does not clearly define the issues.

This problem statement will help solve the problem.

This problem statement will help sales staff to focus.

Mrs. Patel uses a computer program to balance her checkbook. Which of the following best explains how the computer algorithm helps Mrs. Patel?

It gives judgments about how Mrs. Patel spends her money.

It makes Mrs. Patel modern.

It reduces errors.

It shows how to write checks.

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