Deck 1: Introduction to Computers and Java

Question 1

A program is a sequence of instructions stored in:

A) The CPU
B) The computer's memory
C) Software
D) Firmware

Answer 1

B

Question 2

The original name for Java was:

A) Java
B) HotJava
C) Elm
D) Oak

Answer 2

D

Question 3

Byte code instructions are:

A) Another name for source code
B) Syntax errors
C) Machine code instructions
D) Read and interpreted by the JVM

Answer 3

D

Question 4

A runtime error is usually the result of:

A) A logical error
B) A syntax error
C) A compilation error
D) Bad data

Question 5

Syntax is:

A) Words that have a special meaning in the programming language
B) Rules that must be followed when writing a program
C) Punctuation
D) Symbols or words that perform operations

Question 6

A byte is a collection of:

A) Four bits
B) Six bits
C) Eight bits
D) A dollar

Question 7

________ refers to the physical components that a computer is made of.

A) Device
B) System
C) Hardware
D) Software

Question 8

The computer can do such a wide variety of tasks because:

A) It can be programmed
B) It is a machine
C) It contains a central processing unit (CPU)
D) It has the ability to connect to the Internet

Question 9

Another term for programs is:

A) Hardware
B) Software
C) Firmware
D) Shareware

Question 10

Which of the following professions use the computer as a tool?

A) Accountants
B) Engineers
C) Mechanics
D) Nurses
E) All of the above

Question 11

One of the design tools used by programmers when creating a model of the program is:

A) Disk drive
B) Compiler
C) ALU
D) Pseudocode

Question 12

An operating system can be categorized according to:

A) The number of users they can accommodate
B) The number of tasks they can perform at one time
C) Both of the above
D) neither of the above

Question 13

Suppose you are at an operating system command line, and you are going to use the following command to compile a program: javac MyClass.java
Before entering the command, you must:

A) Save the program with the .comp extension
B) Execute the java.sun.com program
C) Make sure you are in the same directory or folder where MyClass.java is located
D) Close all other Windows on your computer system

Question 14

Which of the following is a secondary storage device?

A) Disk drives
B) Solid state drives
C) USB drives
D) None of the above
E) All of the above

Question 15

In the programming process which of the following is NOT involved in defining what the program is to do:

A) Process
B) Compile code
C) Input
D) Output
E) Purpose

Question 16

Computer programming is:

A) An art
B) A science
C) Both of the above
D) neither of the above

Question 17

Variables are:

A) Symbolic names made up by the programmer that represents locations in the computer's RAM
B) Reserved words
C) Symbolic names made up by the programmer whose values cannot be changed
D) Operators that perform operations on one or more operands

Question 18

The major components of a typical computer system consist of:

A) The CPU
B) Input/output devices
C) Main memory
D) Secondary storage devices
E) All of the above

Question 19

This is a special language used to write computer programs.

A) Programming language
B) Operating system
C) Application
D) Pseudocode

Question 20

When a computer is running a program, the CPU is engaged in a process formally known as:

A) The decrypt/validate/commit cycle
B) Low-level machine mode
C) The fetch/decode/execute cycle
D) Parallax data execution

Question 21

________ results in only the object's methods being able to directly access and make the changes to the object's data.

A) Component reusability
B) Classes
C) Data hiding
D) Procedures

Question 22

Because Java byte code is the same on all computers, compiled Java programs:

A) Must be re-compiled for each different machine it is run on
B) Cannot run on Linux systems
C) Are non-existent
D) Are highly portable

Question 23

The purpose of validating the results of the program is:

A) To create a model of the program
B) To correct syntax errors
C) To correct runtime errors
D) To determine whether the program solves the original problem

Question 24

The data contained in an object is known as:

A) Methods
B) Attributes
C) Classes
D) Atriums

Question 25

This is a set of programming language statements that, together, perform a specific task.

A) Object
B) Compiler
C) Procedure
D) Pseudocode

Question 26

RAM is usually:

A) A static type of memory, used for permanent storage
B) A volatile type of memory, used only for temporary storage
C) Secondary storage
D) An input/output device

Question 27

Java was developed by:

A) Microsoft.
B) IBM
C) Sun Microsystems
D) Hewlett-Packard

Question 28

Internally, the central processing unit (CPU) consists of two parts:

A) The control unit and the arithmetic and logic unit (ALU)
B) The control unit and main memory
C) The arithmetic and login unit (ALU) and main memory
D) The input and output devices

Question 29

Which of the following is NOT part of the programming process?

A) Design
B) Testing
C) Debugging
D) All the above are parts of the programming process.

Question 30

Application software refers to:

A) The operating system
B) Pseudocode
C) Key words
D) The programs that make the computer useful to the user

Question 31

This is a software entity that contains data and procedures.

A) Method
B) Object
C) Class
D) Program

Question 32

Which of the following will run the compiled program ReadIt?

A) java ReadIt.java
B) java ReadIt
C) run ReadIt
D) go ReadIt

Question 33

The computer is a tool used by so many professions that it cannot be easily categorized.

Question 34

Which of the following will compile a program called ReadIt?

A) java ReadIt.java
B) java ReadIt.javac
C) javac ReadIt.java
D) javac ReadIt.javac

Question 35

This is a cross between human language and a programming language.

A) Pseudocode
B) Java
C) The Java Virtual Machine
D) The compiler

Question 36

These are used to indicate the end of a Java statement.

A) Semicolons
B) Colons
C) Periods
D) Asterisks

Question 37

Key words are:

A) The data names in your program
B) Words that have a special meaning in the programming language
C) Symbols or words that perform operations on one or more operands
D) Words or names defined by the programmer

Question 38

A computer program is:

A) A set of instructions that enable the computer to solve a problem or perform a task
B) Main memory
C) Pseudocode
D) A flow chart

Question 39

Each different type of CPU has its own:

A) Syntax
B) Firmware
C) Machine language
D) Software

Question 40

Software refers to:

A) Secondary storage.
B) Firmware
C) Programs
D) Applets

Question 41

The contents of a variable cannot be changed while the program is running.

Question 42

Colons are used to indicate the end of a Java statement.

Question 43

When an object's internal data is hidden from outside code and access to that data is restricted to the object's methods, the data is protected from accidental corruption.

Question 44

Each byte is assigned a unique number known as an address.

Question 45

Logical errors are mistakes that cause the program to produce erroneous results.

Question 46

Java source files end with the .class extension.

Question 47

Application software refers to programs that make the computer useful to the user.

Question 48

The Java Virtual Machine is a program that reads Java byte code instructions and executes them as they are read.

Question 49

Without programmers, the users of computers would have no software, and without software, computers would not be able to do anything.

Question 50

Compiled byte code is also called source code.

Question 51

Encapsulation refers to the combining of data and code into a single object.