Answer:
The answer is Frequency Spectrum.
Explanation:
The frequency spectrum is range of all component frequencies.It contains all the waves which are as following:-
Gamma Rays
X-Rays
Ultraviolet
Visible light.
Infrared
Micro wave
Radio wave
These all waves have their range of frequencies.The waves that are visible to us is only the visible light.
Answer:
A.
Explanation:
The malware that replicates itself and can infect the entire system is a worm.
A worm is a type of malware that gets self-activated and replicated. This worm spreads rapidly over the computer system and can corrupt all the files and the entire system.
A worm is a standalone application and does not require action from humans.
Therefore, option A is correct.
Click Run in the Results group under the Design tab. Only show records in the search results that have a Credits field value greater than 120. To see the results, run the query. Click the criterion row for the Credits field and enter >120.
<h3>The meaning of the criterion =200</h3>
Equal to or less than 200. To compute statistics like Sum, Average, or Count, add a Total row to the query datasheet.
<h3>How may criteria be set in an Access query?</h3>
Open the query in Design view and choose the fields (columns) you want to set criteria for in order to add criteria to an Access query. Double-click the field to add it to the design grid if it isn't already there.
To know more about criterion row visit:-
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Answer:
Utility software is software designed to help to analyze, configure, optimize or maintain a computer. It is used to support the computer infrastructure - in contrast to application software, which is aimed at directly performing tasks that benefit ordinary users.
