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Computer Internet And Web Technology Difficulty: Medium

The . . . . . . . . service allows a group of Internet users to exchange their views on some common topic.

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Which statement is incorrect about virtual function. What does the acronym ISDN stand for? What will be the output of the following C# code? class student { int []scores = new int[5] {23, 42, 54, 11, 65}; public int this[int index] { get { if (index < 5) return scores[index]; else { Console.WriteLine("invalid index"); return 0; } } set { if (index < 5) scores[index] = value; else Console.WriteLine("invalid index"); } } } class Program { public static void Main(string[] args) { student s = new student(); Console.WriteLine(s[4] + 8); Console.ReadLine(); } } typedef int (*PFI)(char *, char *)creates . . . . . . . . What will be the output of the following Java program? import java.net.*; class networking { public static void main(String[] args) throws UnknownHostException { InetAddress obj1 = InetAddress.getByName("cisco.com"); System.out.print(obj1.getHostName()); } }