CS 159 - Midterm Exam 1 - Purdue University

False

Main memory is a place where the programs and data are stored permanently during processing. (True or False)

True

High-level languages are portable to many different computers. (True or False)

False

The software used to write and edit programs is known as a compiler. (True or False)

True

One purpose of preprocessor directives is to instruct the preprocessor to make substitutions in the code. (True or False)

False

Pseudo-code uses exact programming language syntax to represent a module in the larger program. (True or False)

True

Software engineering is the use of sound engineering methods and principles to obtain software that is reliable. (True or False)

False

The C programming language is not considered a high-level programming language because of its age. (True or False)

False

Double space all lines of code in your program. (True or False)

True

Rarely are single character identifiers (names) for variables considered meaningful. (True or False)

Circumference

Which of the following is NOT to be output in lab #1?

--All code found between the { and } is referred to as the body of the main function.

--The #include statement is a preprocessor directive.

--The two sections of the main function are the local declarations and executable statements.

--The return(0); statement terminates the main function.

These statements regarding C program is true

True

A C program begins with a section for preprocessor directives. (True or False)

True

The main function is the starting point for execution of the program. (True or False)

True

All code found between { and } of the main function is considered to be the body of the function. (True or False)

True

Variable declarations will be permitted only in the local declaration section of a function this semester. (True or False)

False

Variables in the C language are initialized automatically when they are defined. (True or False)

False

A character constant is enclosed in double quotes. (True or False)

False

While variables have data types, the values represented by constants (both literal and defined) do not. (True or False)

False

The size modifier is used to specify the minimum number of positions to reserve for the output of a value. (True or False)

False

A precision modifier may be used for the output of any numeric value. (True or False)

True

The floating-point values in lab #2 are to be of the double data type. (True or False)

True

All of the compound assignment operators share the same level of operator precedence. (True or False)

False

Converting a higher ranked data type to that of a lower ranked data type will always result in the loss of data. (True or False)

False

One programming technique to simplify code is to always avoid the unnecessary use of parentheses. (True or False)

False

The value of the prefix increment expression is determined before the variable is increased. (True or False)

False

When a compound assignment is used with an expression, the expression on the right side is only evaluated first when parentheses are used to raise its level of precedence. (True or False)

True

Problems associated with defined constants are difficult to resolve as the programmer views the original statement and not the statement with the error after the substitution takes place. (True or False)

False

The abs function is found in math.h. (True or False)

False

In an assignment statement, promotion occurs if the right expression has a higher rank than the variable on the left and demotion occurs if the right expression has a lower rank. (True or False)

The number of sides of the regular polygon will always be an integer greater than 3 and less than 10.

Which of the following statements regarding lab #3 is FALSE?

False

The function definition is an executable statement. (True or False)

True

The control of the program always returns from the called function to the calling function. (True or False)

False

The return statement cannot contain an expression. (True or False)

True

The first line of the function definition requires the data types and identifiers for each parameter. (True or False)

True

Data sent from the calling function to the function being called will be received in the same order in which it was passed. (True or False)

False

A function assignment header for every user-defined function must be inserted immediately above the declaration of the function it is documenting. (True or False)

False

The void in the following declaration statement would be optional: void printData(int, int, int);

(True or False)

True

In downward communication it is only a copy of the data that is sent to the function. (True or False)

True

Given the address of a variable the called function can access and manipulate the value of a variable in the calling function. (True or False)

True

The asterisk has two different uses, declaring an address variable (pointer) and indirectly accessing the data (in the memory location to which the variable points). (True or False)

True

Objects with a global scope are visible (defined) everywhere in the program. (True or False)

True

No code is contained in a structure chart. (True or False)

False

It is a good design practice to replicate the logic of one function in other functions of the program. (True or False)

True

It is possible to determine if any parameters are passed to a function by address based on the first line of the definition of the function (also known as the function header). (True or False)

False

A function that passes at least one parameter by address must pass them all by address. (True or False)

True

One benefit of pass by address is that it allows multiple changes to be made in a function and to have those changes available in the calling function. (True or False)

False

All function declarations found in your program will appear inside of the main function. (True or False)

It is possible to format data with left-alignment when using a printf statement

What is TRUE regarding printf and scanf?

--The data type of a variable will determine those operators with which it may be used

--The data type actually stored by a variable cannot be altered during the execution of a program

--The data type of a variable will determine the amount of memory to reserve for a variable

What is TRUE regarding the selection of a data type for a variable?

If the width modifier provided is too small for the whole number portion to be displayed then those digits will be truncated

What regarding placeholders in the printf function is FALSE?