Answer:
Module Program
Sub Main()
Dim num As Integer
num = 4
Console.WriteLine("The square of " & num & " is " & num * num)
Console.ReadKey()
End Sub
End Module
Explanation:
Very similar to the other program you posted.
Answer:
software framework for supporting distributed data processing and storage.
Explanation:
Some protocols have multiple algorithms to choose from for e.g., cryptographic purposes. During connection set up, client and server negotiate which one they'll use.
One example is the set up of a TLS connection. During the handshake, the client shares a list of its supported ciphers (the 'ciphersuites'). The server responds by indicating the best one that both sides support.