Sonali Bank PLC
Post: Officer (IT),
Exam Date: 11-12-2021 Exam Taker: CTI
1.What is web caching, why we use caching?
2.What is VPN? Write some advantages of using VPN.
3. Difference between distance vector with link State algorithm
4.Write down firewalls role and browser cookies role.
5.Write a Program to find summation for a number until it's become single digit.
#include <iostream>
using namespace std;
int singleDigit(int n) {
int sum = n;
// Repeatedly calculate sum of digits until it becomes a single digit
while (sum >= 10) {
int tempSum = 0;
// Calculate sum of digits of the number
while (sum > 0) {
tempSum += sum % 10;
sum /= 10;
}
sum = tempSum; // Update sum to the sum of digits
}
return sum;
}
int main() {
int n;
// Taking user input
cout << "Enter a number: ";
cin >> n;
// Calling the function and printing the result
cout << "The single digit sum is: " << singleDigit(n) << endl;
return 0;
}
Input: n = 1234
Output: 1
Explanation:
Step 1: 1 + 2 + 3 + 4 = 10
Step 2: 1 + 0 = 1Input: n = 5674
Output: 4
Explanation:
Step 1: 5 + 6 + 7 + 4 = 22
Step 2: 2 + 2 = 46. Comparison and Contrast between Relational and NoSQL Database.
7. Explain Three-Way Handshaking in TCP Protocol.
