C Programming Multiple choice

In a program that uses an endfile-controlled loop to compute product of a list of numeric input data, the product variable must be initialized to

1

The constant 0.15e+6 represents the same value as

1500000

The value of the expression 5 + 6.6 / 2.2 * 0.5 is

6.5

Which one of the following expressions does not evaluate to 3?

7-15/4

Write a complete C program that prompts the user to enter the radius of a circle and displays the circumference. Be sure to name the constant PI.

Answer: #include <stdio.h> #define PI 3.14159 int main(void) { double radius, circum; printf("Please enter radius of circle> "); scanf("%lf", &radius); circum = 2 * PI * radius; printf("The circumference is %.2f.\n", circum); return (0); }

The proper sequence of steps needed to correct invalid statements and re-execute a program is

Enter the editor, correct invalid statements, save the program, compile, link, load, and execute the program.

An application that provides the user with pictures and menus from which to select commands and data is said to have a(n)

GUI

Which of the following is not an advantage of a high-level language?

It is easy for the machine to understand

The program's effect can best be described as __________.

Of the four input characters, it displays the one that comes first in the alphabet.

Temporary storage for programs and data is called ___.

RAM

_____ stores instructions burned at the factory and is non-volatile.

ROM

words have special meaning in C and cannot be used to name variables

Reserved

What happens to the fractional part of a type double expression when the expression is assigned to a type int variable?

The fractional part is lost.]

In C, true evaluates to and false evaluates to

True = 1 False = 0

The Internet is an example of a

WAN

Order the following operators from lowest to highest precedence.

[ = && != > + % ! ]

##403#####201.45####-11.200

[One answer: printf("%5d%11.2f%11.3f\n", a, b, c);]

When the value of a variable is changed as the result of carrying out some operation on it, it is called .

a side effect

What type of function does not contain a return statement?

a void function

A complete list of the steps necessary to solve a problem is a(n)

algorithm

The component of a digital computer that can compare data stored in its registers is the

arithmetic logic unit

Which of the following are valid identifiers? i. R3D3 ii. per-capita iii. phone# iv. ice_cream v. 92_aardvarks

b. i,iv (R3D3, ice_cream)

A(n) ____ is the amount of memory required to store a single binary digit.

bit

In a debugger, use a(n) ______ at the end of each major algorithmic step so that you can examine variables to see if your program is executing correctly.

breakpoint

A __ is the amount of memory required to store a single character.

byte

Information stored in secondary storage is organized into aggregates called

bytes

The part of the computer responsible for retrieving data and instructions from memory for processing is the

central processing unit

A function that performs a single operation is said to be

cohesive

The object file is created by the

compiler

A _________ is a set of values and a set of operations on those values.

data types

Performing each step of an algorithm by hand the same as a computer would to verify the algorithm is correct is called a(n)

desk check

A _____ is a diagram that shows how a control structure will execute step by step.

flowchart

A loop that never terminates is a(n) ______ loop.

infinite

The (what) of a function take(s) information into the function from the calling program.

input arguement

Text enclosed in /* */ in a C program _________.

is ignored by the C compiler

Variables defined inside a function body are considered _____.

local

An expression that uses the &&, ||, and ! operators is call a(n)

logical expression

Which of the following is not a floating-point data type in C?

long

The compiler translates your program into _____ language.

machine

An expression that has operands both of type int and of type double is called a

mixed type

In an interactive program, the statement printf("\n"); has the effect of

moving the cursor to the beginning of the next line

What is the program output if the user types runt followed by a carriage return when the program is run?

n

. When a sentinel-controlled loop performs an extra iteration it is called a(n)

off-by-one error

Which of the following statements calls function abc?

p = abc(q);

Which of the following variables names is considered Camelback notation?

payRate

An individual picture element on the screen is a(n)

pixel

The following statement is call a(n) _______. i++;

postfix increment

The facts that a function assumes to be true of the arguments that it receives are called

preconditions

An integrated circuit containing the full circuitry of a CPU is called a

processor chip

Variables that represent neither problem inputs nor problem outputs but are needed for internal computations are called _____.

program variables

A function _____ tells the compiler the data type of the function, name of the function, and information about the arguments the function expects.

prototype

Code ____ promotes the development of error-free programs because the programmer does not need to repeatedly solve the same problems.

reuse

A ______ error may be detected during execution of a program.

runtime

Loops that terminate upon scanning a special input value are called ________-controlled loops.

sentinel

A special value that marks the end of a list of input data is called a

sentinel value

When C stops evaluating a logical expression because the value can be determined without the rest of the expression, it called a(n) __________ evaluation.

short-circuit

A C compiler detects ______.

syntax errors

A C programmer should not use an expression like the one that follows because ______. n = i + x * ++i;

the expression may produce different results on different ANSI C compilers

What is displayed by the C statements that follow if the value input is 9?

true

Code that is attached to another program that spreads through the computer's memory creating harm is called a(n) _____.

virus

Which one of these is not the name of a C library function?

void

A(n) ____ disrupts a computer network by replicating itself on other network computers

worm

The relational operator for "not equal to" is

!=

What symbol is used for a preprocessor directive

#

The preprocessor directive is used to define constant macros.

#define

Which one of the following lines names a constant needed in a program that computes the price per square inch of a round pizza?

#define PI 3.14159

Which directive gives your program access to a library?

#include

Write a preprocessor directive to tell the preprocessor where to look for common standard input and output functions.

#include <stdio.h>

If num is a variable of type int and temp is a variable of type double, how could you correctly complete this function call? scanf("%lf%d", _________);

&temp, &num