Question

What is the disadvantage of using parallel connections for the server, rather than sending
the whole file in a single TCP connection?

Answer 1

Explanation:

A persistent connection (HTTP persistent connection) is a network communication channel that remains open for further HTTP requests and responses rather than closing after a single exchange. ... To maintain a persistent connection, TCP keep-alive packets are sent to prevent the connection from timing out.

For question point of view you need to know that Non-persistent connection is known as HTTP 1.0 and Persistent connection is known as HTTP 1.1. Non-Persistent Connection: It requires connection setup again and again for each object to send. Persistent connection: It does not require connection setup again and again.