Deck 1: Introduction to Programming and the Java Language

Question 1

An Arithmetic Logic Unit (ALU) is also called:

A) an Integer Unit (IU).
B) a Local Area Network (LAN).
C) an Ethernet port.
D) a Floating Point Unit (FPU).

Answer 1

A

Question 2

Which of the following specifications provides details regarding the CPU?

A) 1 TB (terabyte) hard disk
B) 3 MB of cache memory
C) 3.4-GHz Intel Core i3-3240 processor
D) 8 GB of RAM (random access memory)

Answer 2

C

Question 3

A CPU rated at 2 GHz is capable of executing:

A) 2 billion instructions per second.
B) 0.5 billion instructions per second.
C) 2 MB of instructions.
D) 2 GB of data from the cache.

Answer 3

A

Question 4

Machine language uses binary codes, or strings of As through Zs, to execute the instruction set of the CPU and to refer to memory addresses.

Question 5

Two forward slashes in a Java application indicate comments for information, not instructions to be executed.

Question 6

Memory chips contain __________, each containing a bit, which can store either a 0 or a 1.

Question 7

Every Java application must define a class and a main method. Execution of a Java application always begins with the code inside __________.

Question 8

Calculate the equivalent of the binary number 11011 in our decimal system.

Question 9

Rewrite 1010 1100 0111 0010 as a hexadecimal number.

Question 10

Which of the following is not a benefit of readable code?

A) It allows someone else to take over the maintenance of your program.
B) Well-designed code allows you and others to incorporate prewritten and pretested modules into your program.
C) Specifications for any program are continually changing.
D) It protects your job because others cannot copy your code.

Question 11

Each instruction in a computer program is executed using a Fetch-Decode-Execute cycle.

Question 12

The binary equivalent for the decimal number 12 is:

A) 1000
B) 1101
C) 1100
D) 1200

Question 13

The hexadecimal system has only two possible digits.

Question 14

Which of the following criteria is used to choose a programming language?

A) Do you need the language to be portable?
B) What type of application is the project?
C) How is it compiled?
D) All of these are correct.

Question 15

Which of the following is not a characteristic of Java?

A) The language is highly symbolic.
B) The language is somewhat portable among CPUs.
C) A Java program is compiled into JVM, and then JVM is interpreted by processor-independent byte codes.
D) The language can be specialized for applications.

Question 16

The indentation in pseudocode is used to:

A) make it easier to see the flow of control of the program.
B) identify the importance of the data.
C) signal that an algorithm is being used.
D) All of these are correct.

Question 17

A programmer is required to specify the flow of control because the order in which instructions are executed by the computer is critical in programming.

Question 18

The hexadecimal number C1 is equivalent to which decimal number?

A) 13
B) 193
C) 161
D) 1
E) 121

Question 19

The hexadecimal number 8C is equivalent to which binary number?

A) 1100
B) 100012
C) 10001100
D) 110011
E) 11001000

Question 20

The decimal value of the Unicode character A is:

A) 0.
B) 1.
C) 27.
D) 65.
E) 56.

Question 21

Boundary conditions are the values that sit on the boundaries of producing different output for a program.

Question 22

Linux is an example of application software.

Question 23

An operating system can schedule multiple programs to run during the same time interval.

Question 24

GHz stands for gigahertz.

Question 25

Java's syntax is similar to the syntax of the ______ programming language.

Question 26

The Java compiler converts Java source code into ________, which is a machine language for a virtual machine.

Question 27

_________ is a method for expressing a program's order of instructions in the English language.

Question 28

Which of the following is not a hexadecimal digit?

A) 0
B) 9
C) A
D) F
E) G

Question 29

The binary number 1010 is equivalent to which hexadecimal number?

A) A
B) B
C) C
D) D
E) 9

Question 30

What does JVM stand for?

A) Java Virtual Memory
B) Job Virtual Machine
C) Java Virtual Mode
D) Java Veritable Machine
E) Java Virtual Machine

Question 31

What is the name of the Java compiler?

A) java
B) javac
C) compiler
D) cc
E) jc

Question 32

When you successfully compile the file Hi.java, the file __________ is created.

A) Hi
B) Hi.javac
C) Hi.class
D) class
E) Hi.java

Question 33

You have successfully compiled the file Hi.java. How do you run the corresponding program from the command line?

A) java Hi.java
B) java Hi.class
C) java Hi
D) Hi
E) Hi.class

Question 34

Which company introduced Java?

A) Microsoft
B) IBM
C) Sun Microsystems (now Oracle)
D) AT&T
E) MIT

Question 35

Main memory is made of DRAM.

Question 36

A CPU rated at 1 GHz is capable of executing 1 million instructions per second.

Question 37

Cache memory is hardware.

Question 38

A byte contains _____ bits.

Question 39

DRAM stands for __________.

Question 40

Unicode is a world standard to represent __________.

Question 41

Compare the causes of compiler, run-time, and logic errors.

Question 42

How would you convert a binary number to a decimal number?

Question 43

Give two examples of operating systems.

Question 44

List the digits and characters used in hexadecimal representation.

Question 45

What does it mean for a program to be readable?

Question 46

Why would writing readable code help advance your career?

Question 47

Convert 162 into a binary number. Show your work.