Ministry of Food
Post: Database Manager
Exam Date: 29/11/2022, Subject: ICT, Exam Taker: BPSC
1(a) Name and define the component of data communication systems with necessary diagram.
1(b) Explain five different electronic payment systems used in E-commerce.
2(a) What are the basic difference between a linear array and linked list? 3
2(b) Write a bubble sort algorithm to sort a given list in ascending order. 5
Bubble Sort Algorithm to Sort a List in Ascending Order:
Algorithm:
1. Begin BubbleSort(arr)
2. Repeat for all array elements:
- For i from 0 to n-2:
a. If arr[i] > arr[i+1]:
i. Swap(arr[i], arr[i+1])
3. End For
4. Return arr
5. End BubbleSort
Pseudocode:
Begin BubbleSort(arr)
For i = 0 to n-2:
If arr[i] > arr[i+1]:
Swap(arr[i], arr[i+1])
End If
End For
Return arr
End BubbleSort
2(c) What is flip-fllop? What are the various kinds of register? 2
3. Suppose you have purchased a book from a book fair. The value of the book(i.e the amount you have to pay) will be calculated on the basis of the following criteria:
(i) 20% discount if the price of the book is above 1500.
(ii) 20% discount if the price of the book is in between 1000-1500.
(iii) 10% discount if the price of the book is in between 500-999.
(iv) No discount if the price of the book is less than 500.
Write a C/Java program to calculate the price of a given book. 10
3. Suppose you have purchased a book from a book fair. The value of the book(i.e the amount you have to pay) will be calculated on the basis of the following criteria:
(i) 20% discount if the price of the book is above 1500.
(ii) 20% discount if the price of the book is in between 1000-1500.
(iii) 10% discount if the price of the book is in between 500-999.
(iv) No discount if the price of the book is less than 500.
Write a C/Java program to calculate the price of a given book. 10
(i) 20% discount if the price of the book is above 1500.
(ii) 20% discount if the price of the book is in between 1000-1500.
(iii) 10% discount if the price of the book is in between 500-999.
(iv) No discount if the price of the book is less than 500.
Write a C/Java program to calculate the price of a given book. 10
// Program to calculate the price of a book after discount
#include <stdio.h>
int main() {
float book_price, discounted_price;
// Input the price of the book
printf("Enter the price of the book: ");
scanf("%f", &book_price);
// Calculate the price after applying the discount based on the criteria
if (book_price > 1500) {
discounted_price = book_price - (book_price * 0.20);
} else if (book_price >= 1000 && book_price <= 1500) {
discounted_price = book_price - (book_price * 0.20);
} else if (book_price >= 500 && book_price <= 999) {
discounted_price = book_price - (book_price * 0.10);
} else {
discounted_price = book_price; // No discount
}
// Display the discounted price
printf("The final price of the book after discount is: %.2f\n", discounted_price);
return 0;
}
