Which of the following is NOT a basic operation of socket connections between two hosts ? Open a socket. Read from and write to the stream according to the server's protocol. Do NOT accept connections from remote machines on the bound port. Open an input stream and output stream to the socket.
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Which of the following is NOT a basic operation of socket connections between two hosts ?
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Open a socket. |
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Read from and write to the stream according to the server's protocol. |
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Do NOT accept connections from remote machines on the bound port. |
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Open an input stream and output stream to the socket. |
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- Can you run two client programs on a same host? Try it out, and explain how the server differentiate the two different processes (both running the same client code)? from socket import * serverName = 'localhost' serverPort = 12000 clientSocket = socket(AF_INET, SOCK_STREAM) clientSocket.connect((serverName,serverPort)) sentence = input('Input lowercase sentence:') byteToSend = str.encode (sentence) clientSocket.send(byteToSend) modifiedSentence = clientSocket.recv(1024) print('From Server:', modifiedSentence) clientSocket.close() from socket import * serverPort = 12000 serverSocket = socket(AF_INET,SOCK_STREAM) serverSocket.bind(('',serverPort)) serverSocket.listen(1) print ('The server is ready to receive') while 1: connectionSocket, addr = serverSocket.accept() sentence = connectionSocket.recv(1024) capitalizedSentence = sentence.upper() connectionSocket.send(capitalizedSentence) connectionSocket.close() from socket import * serverName =…Modify the server code so that it prints the client’s IP and port number when it receive a new connection. from socket import * serverName = 'localhost' serverPort = 12000 clientSocket = socket(AF_INET, SOCK_STREAM) clientSocket.connect((serverName,serverPort)) sentence = input('Input lowercase sentence:') byteToSend = str.encode (sentence) clientSocket.send(byteToSend) modifiedSentence = clientSocket.recv(1024) print('From Server:', modifiedSentence) clientSocket.close() from socket import * serverPort = 12000 serverSocket = socket(AF_INET,SOCK_STREAM) serverSocket.bind(('',serverPort)) serverSocket.listen(1) print ('The server is ready to receive') while 1: connectionSocket, addr = serverSocket.accept() sentence = connectionSocket.recv(1024) capitalizedSentence = sentence.upper() connectionSocket.send(capitalizedSentence) connectionSocket.close() from socket import * serverName = 'localhost' serverPort = 12000 clientSocket = socket(AF_INET,…MCQ: Which of the following statement is TRUE? InetAddress is used by other network classes like Socket and ServerSocket to identify hosts. There are public InetAddress() constructors. Using InetAddress, arbitrary addresses may be created. InetAddress class represents as Port address.
- For this lab, you will write a shell script called nethelper.sh that: 1. Reads in a list of hosts from a host file that is passed in as a parameter 2. Repeatedly, until the user selects quit (q), ask the user if the user wants to ping a host or look up a hosts DNS name 3. Once the user has selected an action, prompts the user for which host and then applies the action. Note that for the ssh action, the script must also ask the user for the user name that will be used to log into the host. Step 1 To accomplish step 1 above (reading in a list of hosts from a file), you will write a function called read_hosts. Functions in bash scripts have the following syntax: function name { # function body goes here } You can put any bash syntax inside the function as the function body. Also, note that the parameters to a function act like the parameters passed in at the command line. In other words, the parameters to the function are place in variable named $1, $2, and so on. So, how do you read the…============Code Begin================= import socket from datetime import datetime #initializing host, port, filename, total time and number of times to send the file host = '____________' port = 9000 fileName = "______" totalTime = 0 numTimesSend = 100 print('I am connecting to server side: ', host,'\n') #using a for loop to send the file 100 times for x in range(__________): #recording the start time startTime = datetime.now() #connecting to the server s = socket.socket() s.________((host, port)) x+=1 print('I am sending file', fileName,' for the ',x,'th time') #opening file to read file_to_send = open(_________, 'rb') #reading the first 1024 bits data = file_to_send.read(1024) while ______: s.send(______) #reading the next 1024 bits data = file_to_send.read(______) print('I am finishing sending file', fileName,' for the ',x,'th time') file_to_send._______ #recording the end time…Using your Client that accepts a stream from the Server in question 3. The client receives the Dictionary Based Object from the Server. client code : import socketimport json # Initialize socketHOST = 'localhost'PORT = 5000client_socket = socket.socket(socket.AF_INET, socket.SOCK_STREAM)client_socket.connect((HOST, PORT)) # Receive and print the CO2 data fieldswhile True: data = client_socket.recv(1024).decode() if not data: break field_data = json.loads(data) print(field_data) # Close the socketclient_socket.close()
- Which of the following characteristics below are associated with a UDP socket? Check one or more that apply.Check server.py and client.py code and answer the questions below. # Clientfrom socket import * s = socket(AF_INET, SOCK_DGRAM) host = '127.0.0.1'port = 1234buf =1024 addr = (host,port) req = input("Enter the filename and the line number needed separated by comma: \n") #Example: req = 'book2.txt, 5' s.sendto(req.encode('ascii'), addr) print("Data requested.") data, addr = s.recvfrom(buf) print(data.decode()) s.close() ------------------------------------------------ # Server from socket import * host = '127.0.0.1'port = 1234s = socket(AF_INET,SOCK_DGRAM) s.bind((host,port)) addr = (host,port) buf=1024data,addr = s.recvfrom(buf) data = data.decode() data = data.split(',') f = open(data[0],'r')lines = f.readlines()index = int(data[1]) - 1 s.sendto(lines[index].encode('ascii'), addr) s.close() -------------------------- 1 - What modification(s) can you do to code #1 and code #2 to make the server and client use the TCP Protocol? 2 - Modify the server code to send an error to the…1- Which of the following constructor create a server socket with the specified port, listen backlog, and local IP address to bind? ServerSocket(int port, int backlog, InetAddress bindAddr) ServerSocket(int port) ServerSocket() ServerSocket(int port, int backlog) ------------------------------------ 2- Which of the following is NOT true? Encryption engines are not used in the generation and verification of digital signatures Digital signature engine to be exportable. Encryption engines is part of the Java Cryptography Extension (JCE) Digital signatures are not using their own algorithms to encrypt and decrypt the message digest.
- Create a server side script using inbuilt modules from Node.js(OS, Path, File system and HTTP).You need to display the total number of JPG files in the current directory or you can choose a particular directory. Please make sure all sub-directories are included in the search for the jpg file. Please send me the Solution in Javascript using Node js Server (Consider the subdirectory condition as well) Thanks in advanceWhich of the following constructor create a server socket with the specified port, listen backlog, and local IP address to bind? ServerSocket(int port) ServerSocket(int port, int backlog) ServerSocket(int port, int backlog, InetAddress bindAddr) ServerSocket()the below given python socket statement is used to create the UDP socket server: TRUE if yes, FALSE otherwise server = socket.socket(socket.AF_INET, socket.SOCK_STREAM) Question 18 options: True False
