Code an Express route that   Accepts all paths Accepts all HTTP request methods With a callback that does not generate a response message but passes control to subsequent routes

A browser sends an HTTP request to a web server on port 80. One line of the request is "GET / HTTP/1.1". Explain the purpose of the request,and describe the process that will be used to prepare the response. It is not necessary to show actual content of the HTTP response.

QUESTION 18 Code an Express route that   Accepts all paths Accepts all HTTP request methods With a callback that does not generate a response message but passes control to subsequent routes

It is possible to send many packets from one host to another using the same connection. Please break down the time it takes for a single package to go from beginning to conclusion. Is there going to be one delay that takes a certain length of time and another that varies?

Can you recommend the best HTTP version for my use case? Explain the function of each status code used in HTTP 2.0 response messages.

import socket def authenticate_user(tcp_socket):    while True:        response = tcp_socket.recv(1024).decode()        print(response)        username = input()        tcp_socket.sendall(username.encode())        response = tcp_socket.recv(1024).decode()        print(response)        password = input()        tcp_socket.sendall(password.encode())        auth_response = tcp_socket.recv(1024).decode()        if "successful" in auth_response:            print(auth_response)            return True        else:            print(auth_response) def receive_items(tcp_socket):    while True:        response = tcp_socket.recv(1024).decode()        if "Item List:" in response:            print(response)            while True:                item = tcp_socket.recv(1024).decode()                if not item.strip():                    break                print(item)            break def select_items(tcp_socket):    selected_items = []    while True:        item_id = input("Select item by entering…

Suppose an HTTP client makes a first GET request to the gaia.cs.umass.edu web server for a base page that it has never before requested, which contains an embedded object, which causes the client to make a second GET request. A very short time later, the client then makes a third GET request - for the same base page, with that third GET request having an  If-Modified-Since field (as does the 4th GET request that the client makes for the embedded object).  Neither the base object nor the jpeg object has changed. How many round trip times (RTTs) are needed from when the client first makes the third GET request (i.e., when it requests the base object for the second time) to when the base page and the jpeg file are displayed a second time, assuming that: any time needed by the server to transmit the base file, or the jpeg file into the server's link is (each) equal to 1/2 RTT the time needed to transmit an HTTP GET into the client's link is zero? the time needed by the server to transmit…