Answer:
The correct answer is true.
Explanation:
By definition, a use case is a list of events that defines the interactions between an actor and a system to achieve a goal. Generally, Use cases are used by functional analysts at a higher level to represent requirements, missions or stakeholder goals.
Answer:
// CPP program to Convert characters
// of a string to opposite case
#include<iostream>
using namespace std;
// Function to convert characters
// of a string to opposite case
void convertOpposite(string &str)
{
int ln = str.length();
// Conversion according to ASCII values
for (int i=0; i<ln; i++)
{
if (str[i]>='a' && str[i]<='z')
//Convert lowercase to uppercase
str[i] = str[i] - 32;
else if(str[i]>='A' && str[i]<='Z')
//Convert uppercase to lowercase
str[i] = str[i] + 32;
}
}
// Driver function
int main()
{
string str = "GeEkSfOrGeEkS";
// Calling the Function
convertOpposite(str);
cout << str;
return 0;
}
Explanation:
The answer is port 21. <span>An administrator needs to examine ftp ( file transfer protocol) commands that are being passed to a server. It is the port 21 that the administrator should be monitoring. Port 21 is</span> FTP Control (For starting FTP connection). It connects <span>FTP servers to the internet.</span>
Answer:
The answer is True.
Explanation:
In a Network data transfer, it is essential for the security purpose that data should be in encrypted form which an unreadable form and it will be decrypted when it reaches the destination system.
It is important for the organization to encrypt data to make it safe from hackers and cryptographic technology is used in data Sequence encryption.
There is a key that is used to decrypt data in the network system and encryption and decryption is a sequential process for the data starting from the initial system and ending in the destination system.