Which of the following is a block of data stored on a client computer by a web browser?

A.
cookie

B.
Plug-in

C.
Add-in

D.
Keyword

Explanation:

A cookie is a block of data stored on a client computer by a Web server. If no expiration date is set
for a cookie, the cookie expires when the browser is closed. If the expiration date is set for a future
date, the cookie is stored on the client’s disk after the session ends, and if set for a past date, the
cookie is deleted.
Answer option D is incorrect. Keyword is an important term used to search Web pages on a
particular topic. For example, if a user enters a keyword Networking in a search engine form, all Web
pages containing the term Networking will be displayed.
Answer options B and C are incorrect. Plug-in is also known as add-in.
A plug-in is a computer program that is used with host applications such as Web browsers, e-mail
clients, etc. It is created to provide certain specific functions. Plug-ins is separate from a host
application. However, they are dependent on the services provided by the host application and do
not usually work by themselves.
Reference: “http://en.wikipedia.org/wiki/HTTP_cookie”