List of top Questions asked in CPET

What is the number of page faults for the following memory reference sequence using LRU considering 3 frames per process?

1, 7, 2, 3, 2, 4, 5, 6, 1

What is the maximum number of nodes in a binary tree of height h (where height is measured as the number of edges from the root to the deepest node)?

Which is the best data structure to represent a sparse matrix?

Which of the following is the correct way to declare a friend function in a class?

What will the following C++ program do?

#include <iostream>
#include <fstream>
using namespace std;
int main() {
 ofstream file("example.txt", ios::app);
  file << "Hello ";
  file.close();
  return 0;
}

What is the output of the following C++ code?

# include <iostream.h>
class Base {
public:
 void show() {cout << "Base"; }
};
class Derived : public Base {
public:
  void show() {cout << "Derived"; }
};
int main() {
  Base* b = new Derived();
  b->show();
}

Which of the following is the correct way to open a binary file for both reading and writing in C++?

Given the following C++ code, what will be the order of constructor execution?

class A { public: A() { std::cout << "A" ; } };
class B : public A { public: B() { std::cout << "B" ; } };
class C : public B { public: C() { std::cout << "C" ; } };
int main() { C obj; return 0; }

What is the main purpose of declaring a base class as virtual in multiple inheritance?

What happens if a derived class defines a function with the same name as a base class function, but with a different parameter list?

What happens if a class contains at least one pure virtual function?

Which of the following is a key reason for choosing DRAM over SRAM for main memory?

Which of the following components in an FPGA is responsible for implementing combinational and sequential logic?

What is the result of multiplying the two signed 8-bit binary numbers (using 2's complement representation) 01101010 and 11001100?

What is the 8-bit 2's complement representation of the decimal number -77?

What will happen if you do not call fclose(fp), after opening a file in C?

An AND Gate has 7 inputs. How many input words are in its truth table?

According to De Morgan's first theorem a NOR Gate is equivalent to a __________ Gate.

In a 4-bit synchronous binary counter using JK flip-flops, what will be the state of the counter after 15 clock pulses, if it starts at 0000?

In a synchronous sequential circuit, which of the following conditions may cause a race condition?

What will be the output of the following program?

#include <stdio.h>
int main() {
 int i, j;
  for (i = 0, j = 5; i < j; i++, j--) {
    printf("%d %d |", i, j);
  }
  return 0;
}

What will be the output of the following C code?

# include <stdio.h>
int main()
{ int arr[5] = {1, 2, 3, 4, 5};
 int *ptr = arr;
  *(ptr + 2) = *(ptr + 4) + *(ptr + 1);
  printf("%d\n", arr[2]);
  return 0; }

What is the output of the following C code?

#include <stdio.h>
void func(int arr[]) {
 sizeof(arr) == sizeof(int) * 5 ? printf("True\n") : printf("False\n");
}
int main() {
  int arr[5] = {0};
  func(arr);
  return 0;
}

What will be the output of the following program?

#include <stdio.h>
void test() {
 static int x;
  printf("%d", x);
  x++;
}
int main() {
  test();
  test();
  test();
  return 0;
}

The pointer that points to a memory location that has been already deallocated is known as: