Java Serialization and Networking
practice.

Which of these class extend InputStream class?

Serializaed object can be transferred via network.

Which of these is a process of extracting/removing the state of an object from a stream?

What will be the output of the following Java program?

import java.net.*;
class networking 
{
    public static void main(String[] args) throws Exception 
    {
        URL obj = new URL("https://www.example.com/javamcq");
        URLConnection obj1 = obj.openConnection();
        System.out.print(obj1.getContentType());
    }
}

Note: Host URL is written in html and simple text.

Which of these class is used to encapsulate IP address and DNS?

What does URL stands for?

Which of these data member of HttpResponse class is used to store the response from an http server?

Which of these method of httpd class is used to get report on each hit to HTTP server?

What will be the output of the following Java program?

import java.net.*;
class networking
{
    public static void main(String[] args) throws MalformedURLException
    {
        URL obj = new URL("https://www.example.com/javamcq");
        System.out.print(obj.toExternalForm());
    }
}

Which of these is a protocol for breaking and sending packets to an address across a network?

Which of these class is used to create servers that listen for either local or remote client programs?

How many methods Serializable has?

Which API gets the SocketAddress (usually IP address + port number) of the remote host that this packet is being sent to or is coming from.

Which of the following methods is not used while Serialization and DeSerialization?

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());
    }
}

Which of these process occur automatically by java run time system?

What will be the output of the following Java program?

import java.io.*;
class streams
{
    public static void main(String[] args) 
    {
        try
        {
      FileOutputStream fos = new FileOutputStream("serial");
      ObjectOutputStream oos = new ObjectOutputStream(fos);
            oos.writeFloat(3.5);
            oos.flush();
            oos.close();
  }
  catch(Exception e)
        {
      System.out.println("Serialization" + e);
            System.exit(0);
        }
  try 
        {
      float x;
      FileInputStream fis = new FileInputStream("serial");
      ObjectInputStream ois = new ObjectInputStream(fis);
            x = ois.readInt();
            ois.close();
      System.out.println(x);		    	
  }
  catch (Exception e)
        {
            System.out.print("deserialization");
      System.exit(0);
  }
    }
}

Which of these is a method of ObjectInput interface used to deserialize an object from a stream?

Which of these method of DatagramPacket is used to obtain the byte array of data contained in a datagram?

What will be the output of the following Java program?

import java.net.*;
class networking 
{
    public static void main(String[] args) throws MalformedURLException 
    {
        URL obj = new URL("https://www.example.com/javamcq");
        System.out.print(obj.getPort());
    }
}