HTTP: The web application uses Hyper Text Transfer Protocol (HTTP) as application layer protocol. HTTP is an application protocol for distributive, collaborative, and hypermedia information systems. Client: In computer network , a client is a computer hardware or software that accesses a service made available by server. A client usually asks for the service of a server. The client accesses the service by a way of network. Server: In computer network, a server is a computer program that provides services to other computer programs. A server usually accepts requests made by the client and provides its services to the client.

Question

Obtain the HTTP/1.1 specification (RFC 2616). Answer the following questions: a. Explain the mechanism used for signaling between the client and server to indicate that a persistent connection is being closed. Can the client, the server, or both signal the close of a connection? b. What encryption services are provided by HTTP? c. Can a client open three or more simultaneous connections with a given server? d. Either a server or a client may close a transport connection between them if either one detects the connection has been idle for some time. Is it pos- sible that one side starts closing a connection while the other side is transmitting data via this connection? Explain.

Answer 1

Question

Chapter 2, Problem P6P

a)

Program Plan Intro

HTTP:

The web application uses Hyper Text Transfer Protocol (HTTP) as application layer protocol.

HTTP is an application protocol for distributive, collaborative, and hypermedia information systems.

Client:

In computer network, a client is a computer hardware or software that accesses a service made available by server. A client usually asks for the service of a server. The client accesses the service by a way of network.

Server:

In computer network, a server is a computer program that provides services to other computer programs. A server usually accepts requests made by the client and provides its services to the client.

b)

Program Plan Intro

HTTP:

The web application uses Hyper Text Transfer Protocol (HTTP) as application layer protocol.

HTTP is an application protocol for distributive, collaborative, and hypermedia information systems.

c)

Program Plan Intro

HTTP:

The web application uses Hyper Text Transfer Protocol (HTTP) as application layer protocol.

HTTP is an application protocol for distributive, collaborative, and hypermedia information systems.

Client:

In computer network, a client is a computer hardware or software that accesses a service made available by server. A client usually asks for the service of a server. The client accesses the service by a way of network.

Server:

In computer network, a server is a computer program that provides services to other computer programs. A server usually accepts requests made by the client and provides its services to the client.

d)

HTTP:

The web application uses Hyper Text Transfer Protocol (HTTP) as application layer protocol.

HTTP is an application protocol for distributive, collaborative, and hypermedia information systems.

Client:

In computer network, a client is a computer hardware or software that accesses a service made available by server. A client usually asks for the service of a server. The client accesses the service by a way of network.

Server:

In computer network, a server is a computer program that provides services to other computer programs. A server usually accepts requests made by the client and provides its services to the client.

Explanation of Solution

Closing of transport connection:

“Yes”, it is possible for either of server or client that one side starts closing a connection while the other side is transmitting data through this connection...

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Obtain the HTTP/1.1 specification (RFC 2616). Answer the following questions: a. Explain the mechanism used for signaling between the client and server to indicate that a persistent connection is being closed. Can the client, the server, or both signal the close of a connection? b. What encryption services are provided by HTTP? c. Can a client open three or more simultaneous connections with a given server? d. Either a server or a client may close a transport connection between them if either one detects the connection has been idle for some time. Is it pos- sible that one side starts closing a connection while the other side is transmitting data via this connection? Explain.

TCP / IP uses the client-server communication model, in which a user or computer (a client) receives a service (such as sending a web page) from another computer (a server) on the network. In short, the TCP / IP protocol suite is classified as stateless, which means that each client request is considered new because it has nothing to do with previous requests. Being stateless, network routes are released so that they can be used continuously. Answer the following questions briefly. How does resource reservation work in the TCP / IP model? Which TCP / IP layer is responsible to reserve resources across a network using the TCP / IP model? What protocol assigns an IP address to the client connected to the Internet? Checksum is used by various protocols on the Internet, but not at the one of TCP / IP Explain.

Q.7. Design and implement a client/ Multi-threaded Server Chat application where a set of clients are able to send their request to the Multithreaded Server. In this application, messages that are exchanged between client and server, must be encrypted using AES encryption algorithm. After receiving the message, each party (client or server) perform decryption operation and show the content of message on the terminal.

Answer 2

Question

Chapter 2, Problem P6P

a)

Program Plan Intro

HTTP:

The web application uses Hyper Text Transfer Protocol (HTTP) as application layer protocol.

HTTP is an application protocol for distributive, collaborative, and hypermedia information systems.

Client:

In computer network, a client is a computer hardware or software that accesses a service made available by server. A client usually asks for the service of a server. The client accesses the service by a way of network.

Server:

In computer network, a server is a computer program that provides services to other computer programs. A server usually accepts requests made by the client and provides its services to the client.

b)

Program Plan Intro

HTTP:

The web application uses Hyper Text Transfer Protocol (HTTP) as application layer protocol.

HTTP is an application protocol for distributive, collaborative, and hypermedia information systems.

c)

Program Plan Intro

HTTP:

The web application uses Hyper Text Transfer Protocol (HTTP) as application layer protocol.

HTTP is an application protocol for distributive, collaborative, and hypermedia information systems.

Client:

In computer network, a client is a computer hardware or software that accesses a service made available by server. A client usually asks for the service of a server. The client accesses the service by a way of network.

Server:

In computer network, a server is a computer program that provides services to other computer programs. A server usually accepts requests made by the client and provides its services to the client.

d)

HTTP:

The web application uses Hyper Text Transfer Protocol (HTTP) as application layer protocol.

HTTP is an application protocol for distributive, collaborative, and hypermedia information systems.

Client:

In computer network, a client is a computer hardware or software that accesses a service made available by server. A client usually asks for the service of a server. The client accesses the service by a way of network.

Server:

In computer network, a server is a computer program that provides services to other computer programs. A server usually accepts requests made by the client and provides its services to the client.

Explanation of Solution

Closing of transport connection:

“Yes”, it is possible for either of server or client that one side starts closing a connection while the other side is transmitting data through this connection...

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Answer 3

Question

Chapter 2, Problem P6P

a)

Program Plan Intro

HTTP:

The web application uses Hyper Text Transfer Protocol (HTTP) as application layer protocol.

HTTP is an application protocol for distributive, collaborative, and hypermedia information systems.

Client:

In computer network, a client is a computer hardware or software that accesses a service made available by server. A client usually asks for the service of a server. The client accesses the service by a way of network.

Server:

In computer network, a server is a computer program that provides services to other computer programs. A server usually accepts requests made by the client and provides its services to the client.

b)

Program Plan Intro

HTTP:

The web application uses Hyper Text Transfer Protocol (HTTP) as application layer protocol.

HTTP is an application protocol for distributive, collaborative, and hypermedia information systems.

c)

Program Plan Intro

HTTP:

The web application uses Hyper Text Transfer Protocol (HTTP) as application layer protocol.

HTTP is an application protocol for distributive, collaborative, and hypermedia information systems.

Client:

In computer network, a client is a computer hardware or software that accesses a service made available by server. A client usually asks for the service of a server. The client accesses the service by a way of network.

Server:

In computer network, a server is a computer program that provides services to other computer programs. A server usually accepts requests made by the client and provides its services to the client.

d)

HTTP:

The web application uses Hyper Text Transfer Protocol (HTTP) as application layer protocol.

HTTP is an application protocol for distributive, collaborative, and hypermedia information systems.

Client:

In computer network, a client is a computer hardware or software that accesses a service made available by server. A client usually asks for the service of a server. The client accesses the service by a way of network.

Server:

In computer network, a server is a computer program that provides services to other computer programs. A server usually accepts requests made by the client and provides its services to the client.

Explanation of Solution

Closing of transport connection:

“Yes”, it is possible for either of server or client that one side starts closing a connection while the other side is transmitting data through this connection...

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Answer 4

Question

Chapter 2, Problem P6P

a)

Program Plan Intro

HTTP:

The web application uses Hyper Text Transfer Protocol (HTTP) as application layer protocol.

HTTP is an application protocol for distributive, collaborative, and hypermedia information systems.

Client:

In computer network, a client is a computer hardware or software that accesses a service made available by server. A client usually asks for the service of a server. The client accesses the service by a way of network.

Server:

In computer network, a server is a computer program that provides services to other computer programs. A server usually accepts requests made by the client and provides its services to the client.

b)

Program Plan Intro

HTTP:

The web application uses Hyper Text Transfer Protocol (HTTP) as application layer protocol.

HTTP is an application protocol for distributive, collaborative, and hypermedia information systems.

c)

Program Plan Intro

HTTP:

The web application uses Hyper Text Transfer Protocol (HTTP) as application layer protocol.

HTTP is an application protocol for distributive, collaborative, and hypermedia information systems.

Client:

In computer network, a client is a computer hardware or software that accesses a service made available by server. A client usually asks for the service of a server. The client accesses the service by a way of network.

Server:

In computer network, a server is a computer program that provides services to other computer programs. A server usually accepts requests made by the client and provides its services to the client.

d)

HTTP:

The web application uses Hyper Text Transfer Protocol (HTTP) as application layer protocol.

HTTP is an application protocol for distributive, collaborative, and hypermedia information systems.

Client:

In computer network, a client is a computer hardware or software that accesses a service made available by server. A client usually asks for the service of a server. The client accesses the service by a way of network.

Server:

In computer network, a server is a computer program that provides services to other computer programs. A server usually accepts requests made by the client and provides its services to the client.

Explanation of Solution

Closing of transport connection:

“Yes”, it is possible for either of server or client that one side starts closing a connection while the other side is transmitting data through this connection...

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Answer 5

Chapter 2, Problem P6P

a)

Program Plan Intro

HTTP:

The web application uses Hyper Text Transfer Protocol (HTTP) as application layer protocol.

HTTP is an application protocol for distributive, collaborative, and hypermedia information systems.

Client:

In computer network, a client is a computer hardware or software that accesses a service made available by server. A client usually asks for the service of a server. The client accesses the service by a way of network.

Server:

In computer network, a server is a computer program that provides services to other computer programs. A server usually accepts requests made by the client and provides its services to the client.

b)

Program Plan Intro

HTTP:

The web application uses Hyper Text Transfer Protocol (HTTP) as application layer protocol.

HTTP is an application protocol for distributive, collaborative, and hypermedia information systems.

c)

Program Plan Intro

HTTP:

The web application uses Hyper Text Transfer Protocol (HTTP) as application layer protocol.

HTTP is an application protocol for distributive, collaborative, and hypermedia information systems.

Client:

In computer network, a client is a computer hardware or software that accesses a service made available by server. A client usually asks for the service of a server. The client accesses the service by a way of network.

Server:

In computer network, a server is a computer program that provides services to other computer programs. A server usually accepts requests made by the client and provides its services to the client.

d)

HTTP:

The web application uses Hyper Text Transfer Protocol (HTTP) as application layer protocol.

HTTP is an application protocol for distributive, collaborative, and hypermedia information systems.

Client:

In computer network, a client is a computer hardware or software that accesses a service made available by server. A client usually asks for the service of a server. The client accesses the service by a way of network.

Server:

In computer network, a server is a computer program that provides services to other computer programs. A server usually accepts requests made by the client and provides its services to the client.

Explanation of Solution

Closing of transport connection:

“Yes”, it is possible for either of server or client that one side starts closing a connection while the other side is transmitting data through this connection...

Answer 6

Chapter 2, Problem P6P

a)

Program Plan Intro

HTTP:

The web application uses Hyper Text Transfer Protocol (HTTP) as application layer protocol.

HTTP is an application protocol for distributive, collaborative, and hypermedia information systems.

Client:

In computer network, a client is a computer hardware or software that accesses a service made available by server. A client usually asks for the service of a server. The client accesses the service by a way of network.

Server:

In computer network, a server is a computer program that provides services to other computer programs. A server usually accepts requests made by the client and provides its services to the client.

Answer 7

Chapter 2, Problem P6P

a)

Program Plan Intro

HTTP:

The web application uses Hyper Text Transfer Protocol (HTTP) as application layer protocol.

HTTP is an application protocol for distributive, collaborative, and hypermedia information systems.

Client:

In computer network, a client is a computer hardware or software that accesses a service made available by server. A client usually asks for the service of a server. The client accesses the service by a way of network.

Server:

In computer network, a server is a computer program that provides services to other computer programs. A server usually accepts requests made by the client and provides its services to the client.

Answer 8

b)

Program Plan Intro

HTTP:

The web application uses Hyper Text Transfer Protocol (HTTP) as application layer protocol.

HTTP is an application protocol for distributive, collaborative, and hypermedia information systems.

Answer 9

b)

Program Plan Intro

HTTP:

The web application uses Hyper Text Transfer Protocol (HTTP) as application layer protocol.

HTTP is an application protocol for distributive, collaborative, and hypermedia information systems.

Answer 10

c)

Program Plan Intro

HTTP:

The web application uses Hyper Text Transfer Protocol (HTTP) as application layer protocol.

HTTP is an application protocol for distributive, collaborative, and hypermedia information systems.

Client:

In computer network, a client is a computer hardware or software that accesses a service made available by server. A client usually asks for the service of a server. The client accesses the service by a way of network.

Server:

In computer network, a server is a computer program that provides services to other computer programs. A server usually accepts requests made by the client and provides its services to the client.

Answer 11

c)

Program Plan Intro

HTTP:

The web application uses Hyper Text Transfer Protocol (HTTP) as application layer protocol.

HTTP is an application protocol for distributive, collaborative, and hypermedia information systems.

Client:

In computer network, a client is a computer hardware or software that accesses a service made available by server. A client usually asks for the service of a server. The client accesses the service by a way of network.

Server:

In computer network, a server is a computer program that provides services to other computer programs. A server usually accepts requests made by the client and provides its services to the client.

Answer 12

d)

HTTP:

The web application uses Hyper Text Transfer Protocol (HTTP) as application layer protocol.

HTTP is an application protocol for distributive, collaborative, and hypermedia information systems.

Client:

In computer network, a client is a computer hardware or software that accesses a service made available by server. A client usually asks for the service of a server. The client accesses the service by a way of network.

Server:

In computer network, a server is a computer program that provides services to other computer programs. A server usually accepts requests made by the client and provides its services to the client.

Explanation of Solution

Closing of transport connection:

“Yes”, it is possible for either of server or client that one side starts closing a connection while the other side is transmitting data through this connection...

Answer 13

d)

HTTP:

The web application uses Hyper Text Transfer Protocol (HTTP) as application layer protocol.

HTTP is an application protocol for distributive, collaborative, and hypermedia information systems.

Client:

In computer network, a client is a computer hardware or software that accesses a service made available by server. A client usually asks for the service of a server. The client accesses the service by a way of network.

Server:

In computer network, a server is a computer program that provides services to other computer programs. A server usually accepts requests made by the client and provides its services to the client.