Explain how the getAllByName() method could be used to print all hostnames of an ip adress 204.23.25.67 as a string in Java. Kindly give specific line of codes. Thanks
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A: Complete explanation is in given below.
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- Let your key be the IP address 234.10.90.0 and you want to hash it and then put it in a slot in the hash table with size 257. Do this using Modulo Primes Method and Polynomial Hash. Write all the details.Write C# code for sending an email using SMTPMail class to server with IP address 192.0.0.1 with following details: To : networkprogramming@np.com From: student@np.com Subject : Final Exam Body: Mail body textWrite a code in Java to find the InetAddress of a machine , InetAddress of host of any URL of your choice. Give any two methods.
- Write a program in C that requires one command-line argument that is an IPv4 dotted-decimal address. Create an IPv4 TCP socket and bind this address to the socket along with some port, say 9999. Call listen and then pause. Write a similar program that takes an IPv6 hex string as the command-line argument and creates a listening IPv6 TCP socket. Start the IPv4 program, specifying the wildcard address as the argument. Then, go to another window and start the IPv6 program, specifying the IPv6 wildcard address as the argument. Can you start the IPv6 program since the IPv4 program has already bound that port? Doesthe SO_REUSEADDR socket option make a difference? What if you start the IPv6 program first, and then try to start the IPv4 program?Write TCP Send/Receive methods for text-based communication which uses the “$>!!$>” as the boundary pattern for messages. You can use Helper classes to ease your pseudo code.Servers can be designed to limit the number of open connections. For example, a server may wish to have only N socket connections at any point in time. As soon as N connections are made, the server will not accept another incoming connection until an existing connection is released. Please write pseudo code to implement the synchronization using semaphore.
- In the HTTP protocol, what is the primary different between a GET request and a PUT request? GET requests send out TCP packets whereas PUT requests send out UDP packets. O GET requests are for HTML (and CSS/JavaScript) source files only while PUT requests are for other objects such as images, audio, and video. O GET requests place parameters into the URL while PUT requests place parameters in the HTTP request body. O GET requests are for downloading data and PUT requests are for uploading data.A UDP service FlagServ is running at flagserv.cse543.rev.fish:13337. This UDP service receives a target IP address from the user, and if the user is authenticated, it will happily send a flag (a special string) via UDP to port 13337 of the target IP. Your job is to write a program that retrieves the flag. Can u help solve this problem?Description: You are required to implement a server program that responds to both TCP and UDP requests from the corresponding clients. The service provided by the server is simply a substitute cipher/cryptosystem. The cipher replaces one character to another based on some key. The input message (plaintext) can be of any size but composed only of small-letter (abcdefghijklmnopqrstuvwxyz). The output (ciphertext) has the same size and composed also of small-letter characters. The key is limited to 7 characters (also small-letter). You need to treat each digit as a number according to its position in the alphabet. For example, a=0, b=1, …,z=26. To encrypt a message, you add a plaintext character with the corresponding key character (mod 26). The key might be repeated to match the length of the plaintext message. In the decryption, you subtract the corresponding key character from the ciphertext character (mod 26). Again the key might be repeated as necessary. For example, if the…
- Create an object of MessageDigest class using the java.security.MessageDigest library. Initialize the object with your selection for an appropriate algorithm cipher. Use the digest() method of the class to generate a hash value of byte type from the unique data string (your first and last name). Convert the hash value to hex using the bytesToHex function. Create a RESTFul route using the @RequestMapping method to generate and return the required information, which includes the hash value, to the web browser. Here, is the code to edit package com.snhu.sslserver; import org.springframework.boot.SpringApplication;import org.springframework.boot.autoconfigure.SpringBootApplication;import org.springframework.web.bind.annotation.RequestMapping;import org.springframework.web.bind.annotation.RestController; @SpringBootApplicationpublic class ServerApplication { public static void main(String[] args) { SpringApplication.run(ServerApplication.class, args); } }…HTTP is the protocol that governs communications between web servers and web clients (i.e. browsers). Part of the protocol includes a status code returned by the server to tell the browser the status of its most recent page request. Some of the codes and their meanings are listed below: • 200, OK (fulfilled) • 403, forbidden • 404, not found • 500, server error Given an int variable status, write a switch statement that prints out, on a line by itself, the appropriate label from the above list based on status.Write the output for the following Java code Segment. try { URL u = new URL("https://bb.cas.edu.om/webapps/assessment/do/authoring/modifyShortQuestion?course_id=_143_1"); System.out.println("1. The Protocol is " + u.getProtocol()); System.out.println("2. The user info is " + u.getUserInfo()); System.out.println("3. The host is " + u.getHost()); System.out.println("4. The Port Address is " + u.getPort()); System.out.println("5. The File is " + u.getFile()); System.out.println("6. The Query string is " + u.getQuery()); System.out.println("7. The Path is " + u.getPath()); System.out.println("8. The Authority is " + u. getAuthority()); } catch (MalformedURLException ex) { System.err.println(" I do not understand the URL"); }