COP 3223C Test 1 (Quizzes)

Which of the following is true regarding variable definition in C? - has its meaning at the time of compilation only - cannot declare a variable multiple times in a C program - is useful when you are using multiple files - provides assurance to the compiler that there exists a variable with the given type and name

- has its meaning at the time of compilation only - is useful when you are using multiple files - provides assurance to the compiler that there exists a variable with the given type and name

When was C first implemented?

1972

Definition of basic types

Arithmetic types and are further classified into integer and floating- point types

Who developed the C programming language?

Dennis M. Ritchie

Character literals are enclosed in double quotes. T/F

False

Regarding keywords in the C programming language and creating identifiers. Keywords are reserved in all lowercase and all uppercase. T/F

False

Definition of derived types

Pointer, Array, Structure, Union, Function Types

In a C program, an individual statement must be ended with a semicolon? T/F

True

Literals are equivalent to fixed values in regard to computer programming in the C language. T/F

True

String literals are enclosed in double quotes. T/F

True

Regarding basic data types in C, match the data type to its definition: float = - the most natural size of integer for the machine - a single precision floating point value - a double precision floating point value - typically one byte and in an integer type - represents the absence of a type

a single precision floating point value

printf("Hello, World!\n"); represents what in c programming

function available in c

Definition of void

no value is available

#include <stdio.h> represents what in c programming

preprocessor command

A variable definition must include as a minimum which of the following? - Semi-colon - Assignment operator - Valid name - Initial value - Data type

semi colon valid name data type

What C operator is used to yield the storage size of the object or type in bytes

sizeof()

What type of file contains the source code?

source files

return 0; represents what in c programming

terminates the main()

Regarding basic data types in C, match the data type to its definition: int = - the most natural size of integer for the machine - a single precision floating point value - a double precision floating point value - typically one byte and in an integer type - represents the absence of a type

the most natural size of integer for the machine

Definition of enumerated types

used to define variables that can only define certain discrete integer values

When defining a constant as a preprocessor command, which of the following is the correct implementation?

#define LENGTH 10

These are the multiple formats of an acceptable comment in C

- // comment - /* comment */

What tools are required to set up an environment in order to write, compile, and run a program written in the C language?

- C compiler - Text editor

Why is C widely used?

- Easy to learn - Structured language - It can be compiled on a variety of computer platforms - It can handle low-level activities

Which data types are valid regarding integer literals for constants?

- Hexadecimal - Decimal - Octal

Which of the following are the parts of a floating point constant?

- exponent part - fractional part - decimal point - integer part

Which of the following is true regarding a variable in C? - has a specific type - the data type determines how it can be named - the data type determines the set of operations that can be applied to the variable - the data type determines the size of the variable - all variables use four bytes of membor - the data type determines the range of values that can be stored - the data type determines the layout of the variable's memory

- has a specific type - the data type determines the set of operations that can be applied to the variable - the data type determines the size of the variable - the data type determines the range of values that can be stored - the data type determines the layout of the variables memory

What is the file extension of a C language source code file?

.c

Given the source code below, how many tokens make up the statement? printf("Hello COP 3223!");

5

Regarding identifiers for variables, functions, or any other user defined item, which of the following are acceptable? _variable VARIABLE variable $variable var23iable 2variable3

_variable VARIABLE variable var23iable

Regarding basic data types in C, match the data type to its definition: double = - the most natural size of integer for the machine - a single precision floating point value - a double precision floating point value - typically one byte and in an integer type - represents the absence of a type

a double precision floating point value

Regarding basic data types in C, match the data type to its definition: void = - the most natural size of integer for the machine - a single precision floating point value - a double precision floating point value - typically one byte and in an integer type - represents the absence of a type

represents the absence of a type

Regarding white space in the C programming language, spaces are required between the operators in the following source code in order to compile, run and provide the correct output. int sum = 2+3/2-12*15; T/F

False

C runs nearly as fast as which other language?

Assemble language

Which language is C the successor of?

B

Constants cannot be altered during program execution. T/F

True

Definition of aggregate types

array and structure types

Professional best practices state that when using constants in source code the syntax should be in which format?

camelCase

/* my first program in C*/ represents what in c programming

comments

When defining a constant inside the main() function, which is the correct implementation?

const int LENGTH = 10;

Match the associated code with the situation : Function argument as void = -void exit (int status); -int rand(void); -void*malloc( size_t size );

int rand(void);

What is source code compiled into?

machine language

int main() represents what in c programming

the main function where the program execution begins

Regarding basic data types in C, match the data type to its definition: char = - the most natural size of integer for the machine - a single precision floating point value - a double precision floating point value - typically one byte and in an integer type - represents the absence of a type

typically one byte and in an integer type

Match the associated code with the situation : Function returns as void = -void exit (int status); -int rand(void); -void*malloc( size_t size );

void exit (int status);

Match the associated code with the situation : Pointers to void = -void exit (int status); -int rand(void); -void*malloc( size_t size );

void*malloc( size_t size );