Explore topic-wise MCQs in Technical Programming.

This section includes 565 Mcqs, each offering curated multiple-choice questions to sharpen your Technical Programming knowledge and support exam preparation. Choose a topic below to get started.

101.

Consider the following program fragmenti = 6720; j = 4;while ((i % j) == 0){i = i / j;j = j + 1;}on termination j will have the value

A. 4
B. 8
C. 9
D. 6720
Answer» D. 6720
Discussion
102.

Consider the functionint fun(x: integer){ If x > 100 then fun = x – 10; else fun = fun(fun(x + 11));}For the input x = 95, the function will return

A. 89
B. 90
C. 91
D. 92
Answer» D. 92
Discussion
103.

Match the following list : List – I List – II(a)DIMENSION(i)Operator(b)enum(ii)Macro(c)new(iii)Data type(d)# define(iv)Non - executableCorrect code are:

A. (a) – (iii), (b) – (i), (c) – (ii), (d) – (iv)
B. (a) – (i), (b) – (ii), (c) – (iv), (d) – (iii)
C. (a) – (iv), (b) – (iii), (c) – (i), (d) – (ii)
D. (a) – (ii), (b) – (iv), (c) – (iii), (d) – (i)
Answer» D. (a) – (ii), (b) – (iv), (c) – (iii), (d) – (i)
Discussion
104.

Consider the following ANSI C program.#includeint main(){int arr[4][5];int i, j;for(i =0; i<4; i++){for (j =0; j<5; j++){arr [i][j] = 10*i + j;}}print("%d", *(arr[1] + 9));return 0;}What is the output of the above program?

A. 14
B. 20
C. 30
D. 24
Answer» E.
Discussion
105.

In C programming body of a switch statement must consist of:

A. A case labeled statement
B. default labeled statement
C. A statement
D. A loop
Answer» B. default labeled statement
Discussion
106.

Consider the following function:int unknown(int n) {int i, j, k=0;for (i = n/2; i <= n; i++) for (j = 2; j <= n; j = j*2)k = k + n/2;return (k);}The return value of the function is

A. Θ(n2)
B. Θ(n2log n)
C. Θ(n3)
D. Θ(n3logn)
Answer» C. Θ(n3)
Discussion
107.

Assuming a 2-byte integer which of the following is the correct output for the program givenbelow?# include int main (){printf ( ”% x\n”, -1 << 3);return 0;}

A. 0 0 0 0
B. f f f f
C. f f f 8
D. 0 0 0 8
Answer» D. 0 0 0 8
Discussion
108.

Match the following Lists if you execute a command-line program “test” in ‘C’ as below:test string 1 string 2.List-I List-II(a) argc(i) base address of ‘test’(b) argv[0](ii) number of arguments + 1(c) argv[1](iii) base address of string 2(d) argv[2](iv) base address of string 1 Correct code are:

A. a-ii, b-i, c-iv, d-iii
B. a-i, b-ii, c-iv, d-iii
C. a-ii, b-i, c-iii, d-iv
D. a-iv, b-iii, c-ii, d-i
Answer» B. a-i, b-ii, c-iv, d-iii
Discussion
109.

If only one memory location is to be reserved for a class variable, no matter how many objects are instantiated, then the variable should be declared as _____.

A. extern
B. static
C. volatile
D. const
Answer» C. volatile
Discussion
110.

Consider the following function implemented in C:void printxy(int x, int y) {int *ptr;x = 0;ptr = &x;y = *ptr;*ptr = 1;printf ("%d, %d", x, y) ;}The output of invoking printxy(1, 1) is

A. 0, 0
B. 0, 1
C. 1, 0
D. 1, 1
Answer» D. 1, 1
Discussion
111.

A program structure that permits repeated operation of a particular sequence of instructions is known as

A. subroutine
B. loop
C. module
D. microprogramming
Answer» C. module
Discussion
112.

______ data type specifies an empty set of values.

A. Double
B. Void
C. Float
D. Char
Answer» C. Float
Discussion
113.

Match the columns. 1. \a a. backslash 2. \b b. alarm 3. \n c. backspace 4. \\ d. New line

A. 1 - c, 2 - b, 3 - d, 4 - a
B. 1 - b, 2 - c, 3 - a, 4 - d
C. 1 - b, 2 - d, 3 - c, 4 - a
D. 1 - b, 2 - c, 3 - d, 4 - a
Answer» E.
Discussion
114.

______ provides an alternative name for standard types.

A. Typestd
B. Typealt
C. All options are wrong
D. Typedef
Answer» E.
Discussion
115.

In ______ insertion takes place at the rear end.

A. Queue
B. Stack
C. Sort
D. Link list
Answer» B. Stack
Discussion
116.

Consider the following ‘C’ Program:# include int main (){int max, i;scanf (“%d”, & max);int a[max];for (i=1; i{scanf (“%d”, a[i]);printf(“%d \n”, a[i]);}return 0;} Which of the following statements are correct about the ‘C’ program given above ?(a) The code is correct and runs successfully(b) The code is erroneous since the statement declaring array is invalid(c) The code is erroneous since the subscript for array used in ‘for’ loop is in the range 1 to max - 1(d) The code is erroneous since the type declaration statement int a [max]; is done after scanf()

A. (a) and (c)
B. (b) and (c)
C. (b) and (d)
D. (c) and (d)
Answer» D. (c) and (d)
Discussion
117.

Consider the following recursive C function. Void get (int n) { if (n<1) return; get (n-1) ; get (n-3) ; printf (‘’%d’’, n); }If get (6) function is being called in main() then how many times will the get ( ) function be invoked before returning to the main() ?

A. 15
B. 25
C. 35
D. 45
Answer» C. 35
Discussion
118.

Consider the following program fragmentif (a > b)if (b > c)s1;else s2;s2 will be executed if

A. a < = b
B. b > c
C. b > = c and a < = b
D. a > b and b < = c
Answer» E.
Discussion
119.

______ in values processing of all elements in an array one by one.

A. Merging
B. Insertion
C. Searching
D. Traversal
Answer» E.
Discussion
120.

Consider the following C function.void convert (int n) {if (n < 0)printf (“ % d”, n);else {convert(n / 2);printf (“ % d”, n % 2);}}Which one of the following will happen when the function convert is called with any positive integer n as argument?

A. It will print the binary representation of n and terminate
B. It will print the binary representation of n in the reverse order and terminate
C. It will print the binary representation of n but will not terminate
D. It will not print anything and will not terminate
Answer» E.
Discussion
121.

Consider the following C code segmentint f (int x){if (x<1) return 1;else return ( f{x-1) + g(x) );}int g (int x){ if (x< 2) return 2;else return ( f(x-1) + g(x/2)); }Of the following, which best describes the growth of f(x) as a function of x ?

A. Linear
B. Exponential
C. Quadratic
D. Cubic
Answer» C. Quadratic
Discussion
122.

Identify the output of the following C code snippet.#include#include#includeint main(){fork();printf ("Test 91!\n");return 0;}

A. Test 91! Test 91!
B. Test 91!
C. Hello 91!
D. Test 91!Test 91!
Answer» E.
Discussion
123.

Consider the following recursive Java function f that takes two long arguments and returns a float value:public static float f (long m, long n) {float result = (float)m / (float)n;if(m < 0 | n < 0) return 0.of;else result - = f(m * 2,n * 3);return result ;}Which of the following real values best approximates the value of f (1, 3) ?

A. 0.2
B. 0.4
C. 0.6
D. 0.8
Answer» B. 0.4
Discussion
124.

Consider the following C code:#include int *assignval(int *x, int val) {*x = val;return x;}void main () {int *x = malloc(sizeof(int));if (NULL == x) return;x = assignval (x, 0);if (x) {x = (int *) malloc (sizeof(int));if(NULL == x) return;x = assignval (x, 10);}printf(“%d\n”, *x);free(x);}The code suffers from which one of the following problems:

A. Compiler error as the return of malloc is not typecast appropriately
B. Compiler error because the comparison should be made as x == NULL and not as shown
C. Compiles successfully but execution may result in dangling pointer
D. Compiles successfully but execution may result in memory leak
Answer» E.
Discussion
125.

Consider the following code segment:int x=22, y=15;x = (x>y) ? (x + y) : (x-y);What will be the value of x after the code is executed?

A. 22
B. 37
C. 7
D. 37 and 7
Answer» C. 7
Discussion
126.

Determine the output of the given program.#include int main(){int i, a[4] = {3, 1, 2, 4}, result;result = a[0];for(i = 1; i < 4; i++){if(result > a[i])continue;result = a[i];}printf("%d", result);return 0;}

A. 1
B. 4
C. 3
D. Error
Answer» C. 3
Discussion
127.

In which of the following looping constructs of the ‘C’ language, the body of the loop is executed at least once?

A. while construct
B. for construct
C. Both ‘for’ and ‘while’ constructs
D. do-while construct
Answer» E.
Discussion
128.

In the context of while loop do while loop in C++, which of the following is not true?

A. Both the loops are repetitive in nature
B. Both are conditional loops
C. Both will be executed at least once
D. Both are terminated when the condition become false
Answer» D. Both are terminated when the condition become false
Discussion
129.

Consider the code segment written below in C++ :if (count<10) // if#1if((count%4)==2) // if#2count<<”condition:white\n”;else //(Indentation is wrong)count<<”condition is:tan\n”;There are 2 if statements and one else.To which if, the else statement belong?

A. It belongs to if#1
B. It belongs to if#2
C. It belongs to both the if statements
D. It is independent
Answer» C. It belongs to both the if statements
Discussion
130.

‘ptrdata’ is a pointer to a data type. The expression *ptrdata++ is evaluated as (in C++):

A. *(ptrdata++)
B. (*ptrdata)++
C. *(ptrdata)++
D. Depends on compiler
Answer» B. (*ptrdata)++
Discussion
131.

Consider the following program in C language:#include main(){ int i; int *pi = &i; scanf(“%d”,pi); printf(“%d\n”, i+5);}Which one of the following statements is TRUE?

A. Compilation fails
B. Execution results in a run-time error.
C. On execution, the value printed is 5 more than the address of variable i.
D. On execution, the value printed is 5 more than the integer value entered.
Answer» E.
Discussion
132.

Consider the following C code. Assume that unsigned long int type length is 64 bits.unsigned long int fun (unsigned long int n) {unsigned long int i, j = 0, sum = 0 ;for (i = n; i > 1 ; i = i/2)j++ ;for ( ; j > 1 ; j = j/2)sum++ ;return (sum) ;}The value returned when we call fun with the input 240 is

A. 4
B. 5
C. 6
D. 40
Answer» C. 6
Discussion
133.

Determine the output of the following.#includeint main(){int a[6]={1,2,3,4,5,6};switch(sizeof(a)){case1:case2:case3:case4:case5:printf(“hello”);break;}printf(“HI”);return 0;}

A. Hello
B. HI
C. helloHI
D. helloHI
Answer» C. helloHI
Discussion
134.

Assume X and Y are non-zero positive integers. consider the following pseudo code fragment:while X <> Y doif X > y thenX <- X - YelseY <- Y - Xendifendwhileprint (X)What is the code doing?

A. It computes the LCM of two numbers.
B. It divides the largest numbers by the smaller.
C. It finds the smallest of two numbers.
D. It computes the GCD of two numbers.
Answer» E.
Discussion
135.

Consider the following C program.# includestruct Ournode { char x, y, z ;} ;int main ( ) { struct Ournode p = {‘1’, ‘0’, ‘a’ + 2} ; struct Ournode *q = &p; printf (“%c, %c”, *( (char*) q + 1) , *( (char*) q + 2) ) ; return 0 ;} The output of this program is:

A. 0, c
B. 0, a + 2
C. ‘0’, ‘a + 2’
D. ‘0’, ‘c’
Answer» B. 0, a + 2
Discussion
136.

In ‘C programming’, when fopen () is not able to open a given file due to any reason, it retries

A.
B. EOF
C. Compiler dependent value
D. Runtime Error
Answer» B. EOF
Discussion
137.

Consider the following statements# define hypotenuse (a, b) sqrt (a * a + b * b);The macro call hypotenuse (a + 2, b + 3);

A. Finds the hypotenuse of a triangle with sides a + 2 and b + 3
B. Finds the square root of (a + 2)2 + (b + 3)2
C. Is invalid
D. Find the square root of 3 * a + 4 * b + 5
Answer» E.
Discussion
138.

Consider the following C declarationstruct {short s[5];union {float y;long z;}u;}t;Assume that objects of type short, float and long occupy 2 bytes, 4 bytes and 8 bytes, respectively. The memory requirement for variable t, ignoring alignment considerations, is

A. 22 bytes
B. 18 bytes
C. 14 bytes
D. 10 bytes
Answer» C. 14 bytes
Discussion
139.

Predict the output of the following C code:#include int main(){enum ball {tennis, base, basket ,foot};enum sports {cricket, tennis};int a = 0;for(a = tennis; a <= foot; a++){printf("%d ", a);}return 0;}

A. cricket, tennis
B. compiler error
C. foot, basket, base, tennis
D. tennis, base, basket; foot
Answer» C. foot, basket, base, tennis
Discussion
140.

______ of an element shows its position in an array.

A. Data type
B. Index
C. Value
D. Name
Answer» C. Value
Discussion
141.

Consider the following programmain(){int x = 1;printf (“%d”, (*char(char *)&x)) ;}Assuming required header files are included and if the machine in which this program is executed is little-endian, then the output will be

A. 0
B. 99999999
C. 1
D. unpredictable
Answer» E.
Discussion
142.

Find the output of the following#includeint main(){int x=5, y=9;x=(x= x+y)-(y= x-y);printf("%d %d ", x, y);return 0;}

A. 14 5
B. 9 5
C. 5 9
D. 5 14
Answer» C. 5 9
Discussion
143.

Given the list of tasks in Col-A and list of data structure in Col-2) Identify the best match A B (a) Recursion (i) Binary tree (b) Scheduling (ii) stack (c) sorting (iii) Queue

A. a - (i), b - (iii), c - (ii)
B. a - (ii), b - (i), c - (iii)
C. a - (iii), b - (ii), c - (i)
D. a - (ii), b - (iii), c - (i)
Answer» E.
Discussion
144.

Consider the following A NSI C program.#include int main( ){int i, j, count;count = 0;i = 0;for (j = -3; j <= 3; j++){if ((j >= 0) && (i++))count = count + j;}count = count + i;printf("%d", count);return 0;}Which one of the following options is correct?

A. The program will compile successfully and output 10 when executed.
B. The program will compile successfully and output 8 when executed.
C. The program will compile successfully and output 13 when executed.
D. The program will not compile successfully.
Answer» B. The program will compile successfully and output 8 when executed.
Discussion
145.

Choose most appropriate option considering that gp and ip are declared as void * and int * respectively in C++:

A. gp - ip is a valid C++ statement
B. *ip - *gp is a valid C++ statement
C. Both A) and B) are valid statements
D. Neither A) nor B) are valid statements
Answer» E.
Discussion
146.

Consider the ‘C’ statement printf (“%f”,(float) 7/5); It prints :

A. 1.0
B. 1.4
C. 2.0
D. None of the above
Answer» C. 2.0
Discussion
147.

Assume the C++ definition : class circle : public point Which of the following is false.?

A. The colon (:) in the header of class definition indicates inheritance.
B. All the public and protected members of class 'circle' are inherited as public and protected members , respectively, into class 'point'.
C. the keyword 'public' indicates type of inheritance.
D. 'Point' is the base class and 'circle' is the derived class.
Answer» C. the keyword 'public' indicates type of inheritance.
Discussion
148.

Consider the C program fragment below which is meant to divide x by y using repeated subtraction. The variables x, y, q and r are all unsigned int.While (r >= y) {r = r – y;q = q + 1;}Which of the following conditions on the variables x, y, q and r before the execution of the fragment will ensure that the loop terminates in a state satisfying the condition x == (y*q + r)?

A. (q == r) && (r == 0)
B. (x > 0) && (r == x) && (y > 0)
C. (q == 0) && (r == x) && (y > 0)
D. (q == 0) && (y > 0)
Answer» D. (q == 0) && (y > 0)
Discussion
149.

Consider the following C program. void f(int, short);void main(){int i = 100;short s = 12;short *p = &s;__________ ; // call to f()}Which one of the following expressions, when placed in the blank above, will NOT result in a type checking error?

A. f(s,*s)
B. i = f(i, s)
C. f(i,*s)
D. f(i,*p)
Answer» E.
Discussion
150.

Consider the following code segment:if (Y<0){X=-X;Y=-Y;}Z = 0; While (Y>0){Z=Z+X;Y=-1;}Assume that X,Y and Z are integer variables, and that X and Y have been initialized. which of the following best describes what this code segment does ?

A. Sets Z to be the sum X + Y
B. Sets Z to be the value of Y
C. Sets Z to be the absolute value of Y
D. Sets Z to be the product X*Y
Answer» E.
Discussion