Deck 1: Introduction to Computers and Java

Question 1

Software refers to

A) programs
B) the physical components a computer is made of
C) firmware
D) data stored in RAM

Answer 1

A

Question 2

A solid-state drive has no moving parts and operates faster than a traditional disk drive.

Answer 2

True

Question 3

While __________ is centered on creating procedures, __________ is centered on creating objects.

A) procedural programming, object-oriented programming
B) object-oriented programming, procedural programming
C) routine programming, method programming
D) procedural programming, class programming

Answer 3

A

Question 4

Java source files end with the .class extension.

Question 5

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

Question 6

Java source files end with the .class extension.

Question 7

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

Question 8

The two primary methods of programming in use today are

A) procedural and object-oriented
B) hardware and software
C) practical and theoretical
D) desktop and mobile

Question 9

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

Question 10

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

Question 11

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

Question 12

Compiled byte code is also called source code.

Question 13

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

Question 14

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

Question 15

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

Question 16

Validating the results of a program is important to

A) correct runtime errors
B) make sure the program solves the original problem
C) create a model of the program
D) correct syntax error

Question 17

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

Question 18

RAM is usually

A) an input/output device
B) a volatile type of memory, used for temporary storage
C) secondary storage
D) a static type of memory, used for permanent storage

Question 19

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

Question 20

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

Question 21

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

A) The device
B) Hardware
C) Software
D) The system

Question 22

A(n) __________ is a software entity that contains data and procedures.

A) object
B) program
C) class
D) method

Question 23

Variables are

A) symbolic names made up by the programmer and once created, their values cannot be changed
B) operators that perform operations on one or more operands
C) symbolic names made up by the programmer that represent memory locations
D) reserved words

Question 24

What is syntax?

A) the rules that must be followed when writing a program
B) the words that have a special meaning in the programming language
C) the symbols or words that perform operations in a program
D) the words or characters that are defined by the programmer

Question 25

Key words are

A) symbols or words that perform operations on one or more operands
B) words or characters representing values that are defined by the programmer
C) the data names in your program
D) words that have a special meaning in the programming language

Question 26

Application software refers to

A) the programs that make the computer useful to the user
B) the operating system
C) key words
D) pseudocode

Question 27

There are __________ bits in a byte.

A) 4
B) 8
C) 16
D) 32

Question 28

A characteristic of __________ is that only an object's methods are able to directly access and make changes to an object's data.

A) classes
B) procedures
C) data hiding
D) component reusability

Question 29

A runtime error is usually the result of

A) a logical error
B) a syntax error
C) a compiler error
D) bad data

Question 30

A(n) __________ is used to write computer programs.

A) pseudocode document
B) operating system
C) application
D) programming language

Question 31

One type of design tool used by programmers when creating a model of a program is

A) the ALU
B) byte code
C) syntax
D) pseudocode

Question 32

A set of programming language statements that perform a specific task is a(n)

A) pseudocode chart
B) source code
C) object
D) procedure

Question 33

The end of a Java statement is indicated by a ________.

A) bracket (})
B) asterisk (*)
C) semicolon (;)
D) colon (:)

Question 34

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

A) are nonexistent
B) must be re-compiled for each different machine before they can be run
C) are highly portable
D) cannot run on computers with different operating systems

Question 35

An object typically hides its data but allows outside code access to

A) the pseudocode
B) the methods that operate on the data
C) private data members
D) the data files

Question 36

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

A) Input
B) Main memory
C) Control unit
D) Hardware

Question 37

A cross between human language and a programming language is called

A) a compiler
B) pseudocode
C) the Java Virtual Machine
D) the Java language

Question 38

The central processing unit (CPU) consists of two parts which are

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

Question 39

Computers can do many different jobs because they are

A) programmable
B) reliable
C) automated
D) electronic

Question 40

Byte code instructions are

A) machine code instructions
B) syntax errors
C) read and interpreted by the JVM
D) another name for source code

Question 41

Which of the following will run the compiled program called ReadIt?

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

Question 42

The original name for Java was

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

Question 43

A computer program is

A) the same as main memory
B) only used for desktop computers
C) a set of instructions that allow the computer to solve a problem or perform a task
D) another name for an operating system

Question 44

Each different type of CPU has its own

A) syntax
B) firmware
C) machine language
D) software

Question 45

Which of the following is a software entity that contains data and procedures?

A) a method
B) an object
C) a class
D) a program

Question 46

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 47

Java was developed by

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

Question 48

Byte code instructions are

A) another name for source code
B) syntax errors
C) machine code instructions
D) read and interpreted by the JVM

Question 49

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

A) defining and modeling the problem
B) entering code and compiling it
C) testing and debugging
D) All of these are parts of the programming process

Question 50

Computer programming is

A) an art
B) a science
C) both of the above
D) neither of the above

Question 51

Internally, the central processing unit (CPU) consists of two parts which are __________

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

Question 52

Which of the following is not one of the major components of a typical computer system?

A) the CPU
B) input/output devices
C) main memory
D) secondary storage devices
E) All of the above are major components

Question 53

A program is a sequence of instructions stored in

A) the CPU
B) the computer's memory
C) software
D) firmware