C# OO - Multiple Interfaces

Program.cs

using System;

namespace LearnCS
{
    interface IBackupA
    {
        void BackupA();
    }
    interface IBackupB
    {
        void BackupB();
    }

    class Sec : IBackupA, IBackupB
    {
        public void BackupA()
        {
            Console.WriteLine("I Will backup Server A");
        }
        public void BackupB()
        {
            Console.WriteLine("I Will backup Server B");
        }
    }

    class Program
    {
        static void Main(string[] args)
        {
            Sec p1 = new Sec();
            p1.BackupA();
            p1.BackupB();

            Console.ReadLine();
        }
    }
}