Answer:
a. backdoor
backdoor (also called a trapdoor) is a programming routine built into a system by its designer or programmer. It enables the designer or programmer to bypass system security and sneak back into the system later to access programs or files.
<span>d. select information is sent to the search engines database to be indexed. </span>
Answer:
The answer is "True".
Explanation:
The web beacons are one of the different techniques, that are used on web pages and emails, to check whether a user has access to some unobtrusively. It is a line, that is often invisible, and typically does not exceed 1 pixel.
- It is usually used with cookies.
- It is also known as a small graph, which generates a request to the server for tracking service.
Answer:
computer is a device for storing and processing data and also to communicate with people
