Reasons why the height of a VHF radio antenna is important is because VHF radios work by the line of sight principle.
Line of sight its a line from observers eye to a distant point.its a line between two points specifically the straight path between a transmitting antenna (as for radio or television signals) and receiving antenna when unobstructed by the horizon.
Answer:
Spyware
Explanation:
Internet is a type of computer network that allow device communicate with each other world wide. So, it is not the correct option.
Worm: this is a standalone malware computer program that replicates itself in order to spread to other computers. It spreads copies of itself from computer to computer. A worm can replicate itself without any human interaction, and it does not need to attach itself to a software program in order to cause damage. The major feature of a worm is ability to replicate on it own. So, it is not the correct option.
Bot: this is a software application that runs automated tasks. So, it is not the correct option.
Middleware: this is software that lies between an operating system and the applications running on it, enabling communication and data management. It provides services to software applications beyond those available from the operating system. So, it is not the correct option.
Spyware: this is the correct answer. Spyware is similar to trojan horse because it hides itself in a system and a user may not know that it exist on the system. Spyware is a form of malware that hides on your device, monitors your activity, and steals sensitive information without knowledge of the user.
Microsoft Access is a database management system (DBMS) from Microsoft that combines the relational Microsoft Jet Database Engine with a graphical user interface and software-development tools. ... It can also import or link directly to data stored in other applications and databases.
In some database programs, a data file referred to as a table option (a) is correct.
<h3>What is a database?</h3>
A database in computer is a structured data collection that is technologically accessible and stored.
The question is incomplete.
The complete question is:
In some database programs, a data file is referred to as a(n) ______.
a. table
b. unit
c. record
d. sheet
A data file is known as a table in some database applications.
A database system contains vital info about a business; when the data is processed, it becomes valuable knowledge about the business and aids in choice.
Thus, in some database programs, a data file referred to as a table option (a) is correct.
Learn more about the database here:
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