Exam 2: Application Layer

The World Wide Web was conceived at University of Utah as part of the development of the Internet.

In the three-tier architecture,the software on the client computer is responsible for the presentation logic,an application server is responsible for the application logic and a separate database server is responsible for the data access logic and data storage.

The idea for a special hypertext network,called the World Wide Web,was conceived of by:

Another term for a user agent is:

Discuss the functions of a web browser.Describe two web browsers.What was the first graphical Web browser? What are three search engines that you might use to find information on the Internet?

The fundamental problem in client-based networks is that all data on the server must travel to the client for processing

A response status code of 404 means:

What is X.400 and CMC?

The most commonly used e-mail standard is:

What is IM?How does it work?Draw a schematic of it.

With the "thin client" architecture,when an application changes,only the _________ with the application logic needs to be updated.

What are the major parts of an email message?

Which of the following is not the type of computer commonly used as a server:

In a two-tier client-server architecture,a client computer needs to use an application layer software package called a ________________ to send e-mail:

____________ is not an important middleware standard.

Describe how mail user agents and message transfer agents work together to transfer mail messages,including a diagram.

Web-based e-mail like Hotmail is an example of three-tier client-server architecture that provides access to e-mail messages.

To get a page from the Web,a user must type in a URL,which stands for:

The standards H.320,H.323,and MPEG-2 are commonly used with

A ________ is a very large general-purpose computer that is capable of performing very many functions as if these are done simultaneously,and storing extremely large amounts of data.