C Programming Final

2 Bytes is equal to _______ Bits A. 16 B. 8 C. 2 D. 14

Answer: 16

Which of the following is not a valid relational operator? A. =< B. >= C. > D. <

Answer: =<

Which of the following is the standard way to scan a float variable x? floatx; A. scanf("%d", &x); B. scanf("%.2f", &x); C. scanf("%f", &x); D. scanf("%f",x);

Answer: scanf("%f", &x)

Which of the following is the correct syntax to define a constant variable in C? A. #define <NAME> value B. #define <NAME> data_type = value C. #define data_type <NAME> = value D. None of the above

Answer: #define <NAME> value

Which of the following formats is used to display a float to two decimal places? Assume: float radius = 1.4535; Expected output: 1.45 A. %.3f B. %.f C. %.2d D. %.2f

Answer: %.2f

Which of the following is the correct syntax to change the data type (type casting) of a variable? A. (data_type) variable B. variable = data_type C. variable (data_type) D. none of the above

Answer: (data_type) variable

The extension of the source file for a C Program is: A. .exe B. .java C. .h D. .c

Answer: .c

What is the extension of the source file for a C program: A. .zip B. .c C. .java D. .txt

Answer: .c

The standard libraries in C have a header file with which of the following extensions? A. .exe B. .h C. .c D. .obj

Answer: .h

Which of the following is a correct comment in a C program? A. /* this is a comment */ B. ** this is a comment ** C. # this is a comment D. */ this is a comment */

Answer: /* this is a comment */

What will be the value of sum after running the following segment of code? int sum = 0; int n =1; while(n>=3) { sum = sum + n; n = n + 1; } printf("The sum value is: %d , sum); A. 0 B. 6 C. 4 D. 3

Answer: 0

What will be the value of the variable "a" when running the following statements? int y = 3; int x = 4; int a = y < x || y % 2 == 0; A. 1 B. 0 C. true D. false

Answer: 1

What will be the value of the variable c on execution of the following code segment? int a = 10; int b = 10; int c = 0; if (a >= b) { c = a * b; } else { c = a + b; } A. 100 B. 0 C. 20 D. 10

Answer: 100

1 Gigabyte is equal to _______ Megabyte A. 8 B. 1024 C. 999 D. 1000

Answer: 1024

What will be the output of the following code: #include<stdio.h> int main() { int num = 13; ++num; printf("%d", num++); return 0; } A. 12 B. 14 C. 15 D. 13

Answer: 14

What is the value of x in the following code segment: int x = 9+6/ 2*4; A. 1.8 B. 8 C. 21 D. 1

Answer: 21

What will be stored in the variable "a" after int a = 12; int b = 7; a = 3* ++b; A. 21 B. 10 C. 24 D. 8

Answer: 24

What should be the output: int main() { int a = 10/3; printf("%d", a); return 0; } A. 3.33 B. 3.0 C. 3 D. 0

Answer: 3

What will be the value of the variable B after running the following code segment? int B = 1; int loop = 1; while (loop < 8) { B = B + 1 loop = loop + 2; } printf("%d", B); A. 7 B. 5 C. 6 D. 1

Answer: 5

What will be the output of the following code: #include<stdio.h> int main() { float val = 3.5 + 4.5; printf("%.2f", val); return 0; } A. 8.0 B. 8.00 C. Compiler error D. 8

Answer: 8.00

Which of the following is not a logical operator A. || B. ! C. & & D. ==

Answer: ==

Which of the following is the correct precedence of the operators? A. Relational operators, Logical operators, Arithmetic operators B. Logical operators, Arithmetic operators, Relational operators C. Arithmetic operators, Logical operators, Relational operators D. Arithmetic operators, Relational operators, Logical operators

Answer: Arithmetic operators, Relational operators, Logical operators

In the given code segment, what is the scope of the variable c? int a = 10; if(a <= 10) { int c; c = a * 10; } A. It doesn't have a scope B. Block scope C. Local scope D. Global scope

Answer: Block scope

Which of the following is not an example of Operating System A. CPU B. Windows C. Android D. Linux

Answer: CPU

Which of the following is not a pre-test loop? A. While loop B. Do-While loop C. For loop D. All of the above

Answer: Do-While loop

Which of the following is not a pre-test loop? A. While loop B. Do-While loop C. for loop D. All the given loops are pre-test loops

Answer: Do-While loop

Which of the following operator checks whether the two operand values are same or different? A. None of the above B. Equality operator (==) C. Assignment operator (=) D. Relational operator (<, >, <=, >=)

Answer: Equality operator (==)

What is the output of the following code fragment? int finalGrade = 59; if (finalGrade < 60) { printf("Fail!"); } else { printf("Pass!"); } A. Syntax error B. Compilation error C. Pass! D. Fail!

Answer: Fail!

A byte is the smallest unit of data in a computer? A. True B. False

Answer: False

A function that returns a value should have a void return datatype. A. True B. False

Answer: False

A function that returns no output has a return type of int. A. True B. False

Answer: False

A syntax error is not a type of compile- time error A. True B. False

Answer: False

A variable name in C can start with a digit or special character A. True B. False

Answer: False

C is not a case sensitive language: A. True B. False

Answer: False

Default case is required in the switch statement A. True B. False

Answer: False

If the variable a = 4 and variable b = 3 what will be the output of a <= b A. True B. False

Answer: False

In a c program, "%" symbol is an arithmetic operator which is used to calculate percentage of 2 numbers A. True B. False

Answer: False

Preprocessor, is a software that goes through the C program after compilation? A. True B. False

Answer: False

Printf function is used to read user input A. True B. False

Answer: False

The code in the function is enclosed between [ ... ] A. True B. False

Answer: False

The following code will generate a random number between 0 and 5 (5 is included): int num; num = rand() % 5; A. True B. False

Answer: False

The value of constant variable can be changed in any where in the code A. True B. False

Answer: False

Value of the named constant can be changed in the code A. True B. False

Answer: False

While loop is a post-test loop. A. True B. False

Answer: False

How many times will the following code print "Welcome to C Programming"? int count = 0; while(count < 10) { printf("Welcome to C Programming"); } A. 8 B. 10 C. 9 D. Infinite number of times

Answer: Infinite number of times

What will be the output of the following code fragment? int age = -1; if (age < 18 && age >= 0) { printf("User is under 18"); } else if (age >= 18 && age < 21) { printf("User is under 21"); } else if (age >= 21) { printf("User is over 21"); } else { printf("Invalid age entered"); } A. User is under 18 B. Compilation error C. Invalid age entered D. Syntax error

Answer: Invalid age entered

Variable declared in a function has what type of scope A. General Scope B. Local Scope C. Block Scope D. Global Scope

Answer: Local Scope

The C expression "if (a==10 || b==20) {...}" can be re-written as? A. if (a == 10) || if (b == 20) {...} B. if (a == 10) {...} if (b == 20) {...} C. if (a == 10) {...} else if (b == 20) {...} D. None of the above

Answer: None of the above

What is the output of the following code fragment? int finalGrade = 80; if (finalGrade < 60) { printf("Fail!"); } else { printf("Pass!"); } A. Fail! B. Pass! C. Syntax error D. Compilation error

Answer: Pass!

What will be the outcome of the following code segment int option = 1; switch(option) { case 1: printf("Red"); case 2: printf("Blue"); case 3: printf("Green"); break; default: printf("Invalid Option!"); } A. Red Blue Green B. Red C. Invalid Option! D. Red Blue

Answer: Red Blue Green

What will be displayed by the following code segment int sum = 0; for (int i = 0; i <= 10; i++) { sum = sum + sum; } printf("Sum = %d" , sum); A. Sum = 10 B. Sum = 15 C. Sum = 0 D. Sum = 4

Answer: Sum = 0

Which of the following is not a type of loop? A. Do-While B. For C. Switch-Case D. While

Answer: Switch-Case

What will be the output of the following code: #include<stdio.h> int main() { printf("Hello\nWorld!") return 0 } A. Hello World! B. Hello World! C. Hello World! D. There will be no output, there is a syntax error in the code

Answer: There will be no output, there is a syntax error in the code

A Boolean data type has only two values: A. True B. False

Answer: True

A const keyword is used to define a constant in c. Example: const int SIZE = 100; A. True B. False

Answer: True

A variable is identified by its name, data type and scope. A. True B. False

Answer: True

Assume: int a = 10; int b = 10; Evaluate the following expression: a <= b || b <= a A. True B. False

Answer: True

C Is not an object oriented programming language? A. True B. False

Answer: True

C is a case sensitive programming language: A. True B. False

Answer: True

Evaluate the following logical expression: !(age > 25) Assume: int age = 22; A. True B. False

Answer: True

Every program statement must end with a semicolon ";" A. True B. False

Answer: True

Hardware is the tangible part of the computer system A. True B. False

Answer: True

If the variable a = 15 and variable b = 8 what will be the output of a >= b A. True B. False

Answer: True

If the variable a = 4 and variable b = 7 what will be the output of b == 7 A. True B. False

Answer: True

In C language, true is stored as 1 while false is stored as 0 A. True B. False

Answer: True

In C, the program execution begins with the main() function A. True B. False

Answer: True

In C, the rand() function generates a random number between 0 and MAX integer A. True B. False

Answer: True

Omitting the break statement for a case in switch will cause the statements within the next case to be executed A. True B. False

Answer: True

Preprocessor directives start with # (Ex. #include<stdio.h>) A. True B. False

Answer: True

Program execution in C begins with the main() function? A. True B. False

Answer: True

Source Code is the computer program written by a programmer? A. True B. False

Answer: True

The logical NOT operator (!) reverses the truth of a Boolean expression A. True B. False

Answer: True

Will the following code generate a syntax error: #include <stdio.h> int main() { printf ("CNIT 10500 is awesome!") return 0; } A. True B. False

Answer: True

You can change the data type of a variable is an expression by casting as in the following: (data_type) variable; A. True B. False

Answer: True

Which of the following statements takes the execution out of the loop A. Break; B. printf (); C. scanf (); D. All of the given statements take execution out of loop

Answer: break;

Which of the following statements takes the execution out of the loop? A. printf (); B. break; C. scanf (); D. All of the above

Answer: break;

Which of the following is the correct syntax to define a constant variable in C? A. const data_type NAME = value; B. data_type NAME = const value; C. const NAME = data_type; D. none of the above

Answer: const data_type NAME = value;

Which of the following choices will correctly call the function display() in the following main function. void display(int grade, float gpa) { printf("Students grade is %d \n" , grade); printf("Students gpa is %.2f \n", gpa); } int main() { int grade; float gpa; printf("Enter students grade and gpa"); scanf("%d %f", &grade, &gpa); ------------------------------ // invoke the function here return 0; } A. display(5,7,8); B. display(4.5); C. display(75, 3.5); D. display();

Answer: display (75, 3.5);

Which of the following is the correct syntax of if statement? A. (expression) if { Statements... } B. if (expression) { Statements... } C. if { expression } D. if expression { Statements... }

Answer: if (expression) { Statements... }

Which of the following is a correct if expression to check if the variable temp is between 55 and 70? A. if (temp >= 55 && temp <= 70) B. if (temp >= 55 || temp <= 70) C. if (temp == 55 && temp == 70) D. if (temp <= 55 && temp >= 70)

Answer: if (temp >= 55 && temp <= 70)

Which of the following statements is a correct function prototype of the function compute? function: int compute (int num1, int num2) { return (num1/num2); } A. int compute (num1, num2); B. compute (int num1, int num2); C. compute (); D. int compute (int num1, int num2);

Answer: int compute(int num1, int num2);

Which of the following functions is used in all the C programs? A. program() B. system() C. start() D. main()

Answer: main()

Which of the following functions must exist in all C program: A. start() B. system() C. main() D. program()

Answer: main()

Which of the following is a valid invocation for the function myFunction(): void myFunction(){ printf("Midterm Exam for CNIT-105"); } A. myFunction(); B. myFunction; C. myFunction("CNIT105 is awesome");

Answer: myFunction();

In the following code segment choose the condition that will replace the ------- in the following code. The goal of this code is to keep prompting the user until the user enters a number greater than or equal to 0 int num; do{ printf(); scanf("%d", &num); } while (-------); A. num >= 0 B. num > 0 C. num < 0 D. num <= 0

Answer: num < 0

Which of the following statement will raise 2 to the power of 8 and store the result in the variable value? Assume: float value; A. value = 2^8; B. value = pow (2,8); C. value = 2*8; D. value = pow (8,2);

Answer: value = pow (2,8);

Which of the following operators is used to compare two variables in C? Assume: int var1, var2; A. var1 = var2 B. var1 == var2 C. var1 ?: var2 D. var1 := var2

Answer: var1 == var2

Which of the following is the symbol for logical AND? A. ! B. || C. && D. &

Answer: &&

Assume that the goal is to partially fill an array with test scores (between 0 and 100 both inclusive) by prompting the user in a loop. Which of the following can be used as a sentinel value to stop the data entry? A. 100 B. -1 C. 1 D. 0

Answer: -1

What will be the output of the following code int n; for(n = 1; n <= 10; n++) { printf("%d" , n); } A. 0123456789 B. 12345678910 C. 123456789 D. 1234567891011

Answer: 1 2 3 4 5 6 7 8 9 10

What is the outcome of the following loop? int num = 1; while (num <= 100) { num = num + 1; } printf("%d", num); A. This loop will not execute at all B. This is an infinite loop C. 100 D. 101

Answer: 101

What will be the value of variable len after the execution of following code? int main () { char name[ ] = "I Love CNIT105!"; int len; len = strlen(len); } A. 14 B. 13 C. 12 D. 15

Answer: 15

When was 'C' developed? A. 1970's B. 1980's C. 1960's D. 2000's

Answer: 1970's

What will be stored in variable result by the following statements? float result; result = 13 / 5; A. 2.0 B. 2.6 C. 3.0 D. unknown

Answer: 2.0

What will be displayed by execution of the following code? char name[ ] = "Andy Wang" ; printf ("%s" , name); A. Wang B. Andy C. Runtime error D. Andy Wang

Answer: Andy Wang

What will be the output of the following code? int option = 1; switch(option) { case 1: printf("Computer"); case 2: printf("And "); case 3: printf("Information Technology!"); break; default: printf("Invalid Option!"); A. Computer And Information Technology! B. Computer C. Information Technology! D. And

Answer: Computer And Information Technology!

Which of the following is required to read or write to a file on the disk? A. int * ptr; B. FILE * ptr; C. File * ptr; D. FILE ptr;

Answer: FILE * ptr;

"C" is an object - oriented language A. True B. False

Answer: False

&d identifies is used to print or scan a variable of double-floating data type A. True B. False

Answer: False

A switch statement requires a default case A. True B. False

Answer: False

The "%d" identifier is used to print or scan a variable of double - floating data type A. True B. False

Answer: False

Variables declared inside a function have a global scope and can be used anywhere in the program A. True B. False

Answer: False

Identify the problem in the following code float compute(int a, int b) { float answer; answer = a / b; } A. Variable answer should be of type int B. Output type of the function should be int C. Function doesn't return anything D. There is nothing wrong with this function

Answer: Function doesn't return anything

What is the scope of a variable? A. It is the same as name of the variable B. It is the segment of the code where the variable can be used C. It is a location of the variable in RAM D. It is a data type of the variable

Answer: It is the segment of the code where the variable can be used

What is the outcome of the following segment of code? int option = 1; switch (option) { case 1: printf("Red \n"); case2: printf("Blue \n"); case3: printf("Green \n"); break; default: printf("Invalid option. \n"); } A. Red and Blue B. Red C. Red, Blue and Green D. Invalid option

Answer: Red, Blue and Green

How many time will the loop in the following code run int main() { int n = 1; int sum = 0; while(n <= 10) { sum = sum + n; } printf("Sum of numbers from 1 to 10 is: %d", sum); } A. The loop will not execute B. The loop will run infinite times C. The loop will run 10 times D. The loop will run 11 times

Answer: The loop will run infinite times

In "C" the program execution begins with which function? A. The first function in the program. B. The function with most lines of code C. The programmer can choose the function D. The main() function

Answer: The main() function

A function may not return a value back A. True B. False

Answer: True

A preprocessor is a software that goes through the C program before compilation A. True B. False

Answer: True

Assignment operator(=) has the lowest precedence than all the arithmetic operators A. True B. False

Answer: True

Evaluate the following logical expression: 7>=6 || 1 < 8 && 7 > 9 A. True B. False

Answer: True

For loop is also known as a continuing loop A. True B. False

Answer: True

If variable a = 4 and b = 5 what will be the output of a < b A. True B. False

Answer: True

If variable a = 4 and b= 5 what will be the output of a < b A. True B. False

Answer: True

In 'C' switch statements are used for making decisions A. True B. False

Answer: True

In C language true is stores as 1 while false is stored as 0 A. True B. False

Answer: True

In a C program, a pointer to the address of a variable A. True B. False

Answer: True

In a C program, true is stored as 1 while false is stored as 0 A. True B. False

Answer: True

Modulus operator (%) can only operate on two whole numbers: A. True B. False

Answer: True

The value of the expression 8 + 12 % 7 is 13 A. True B. False

Answer: True

Variables declared inside a function have a local scope and can only be used inside the function A. True B. False

Answer: True

break; statement is used to end the loop before its normal termination A. True B. False

Answer: True

feof() function is used to detect the end of file A. True B. False

Answer: True

printf is a function in stdio library: A. True B. False

Answer: True

What will be displayed after the following code is executed? int ctr = 1; while (ctr <= 99) { ctr++; } printf("Value of variable ctr is: %d", ctr); A. Value of variable ctr is: 1 B. Value of variable ctr is: 100 C. Value of variable ctr is: 99 D. Value of variable ctr is: 98

Answer: Value of variable ctr is: 100

What will be displayed by the execution of the following code? int a = 20; if(a*2 > 40) { printf("You win!"); }else{ printf("You lose!"); } A. You win! You lose! B. You lose! C. No output D. You win!

Answer: You lose!

Which of the following enters a new line in the output: A. \t B. \\ C. \n D. \*

Answer: \n

Which of the following inserts a new line in the output? A. \t B. \\ C. \* D. \n

Answer: \n

Assume that the goal is to declare a variable to store price of a book. What is the proper data type for this variable? A. struct B. int C. char D. float

Answer: float

Which of the following will determine if num is divisble by 19? Assume that num is initialized to some value. int num = ... A. if (num % 19 == 1) B. if (num / 19 == 0) C. if (num % 19 == 0) D. if (num % 19 = 0)

Answer: if (num % 19 == 0)

Which of the following option is a prototype of the given function? int divide(int a, int b) { return a / b; } A. int divide(int a, int b); B. int divide(int, int); C. void divide(int a, int b); D. int divide();

Answer: int divide(int, int);

Assume we have a struct defined named Record that has int variable count, we declare array of record as follows: Record inventory[20]; Fill in the blank to store count = 10 for every array element in the array inventory int k; for (k=0; k < 20; k++) { -------------------------- } A. count[k]=10; B. inventory.count[k]=10; C. inventory[k].count = 10; D. inventory. count = 10;

Answer: inventory[k].count = 10;

In a C program, the execution begins with which functions? A. Doesn't matter B. There is no function in c program C. main() function D. First function in the program

Answer: main() function

Which statement will store the character K in the variable middle? Assume: char middle; A. middle = 'K'; B. middle = K; C. middle = "K"; D. All of the above

Answer: middle = 'K';

Which statement will assign variable m to n? int m = 12; int n = 7; A. n = m; B. m = n; C. All of the above D. n == m;

Answer: n = m;

Given the following: typedef struct { float radius; float height; } Cylinder; Cylinder object; Which of the following is the right way to assign 12.50 to the height of the variable object A. Cylinder.height = 12.50; B. object.height = 12.50; C. object(height) = 12.50; D. Cylinder.object.height = 12.50;

Answer: object.height = 12.50;

Which of the following is the standard way to print a character variable c; char c = 'c' ; A. printf("%c", c); B. printf("%c", &c); C. printf("%s", c); D. printf("%d", c);

Answer: printf("%c", c);

When you don't want the function to return anything which of the following return type will you use? A. Nothing B. void C. float D. int

Answer: void

Which of the following is the symbol for logical OR? A. || B. ! C. && D. |

Answer: ||