When computer criminals launch an intentional attack in which servers are flooded with millions of bogus service requests that so occupy the server that it cannot service legitimate requests, it is called a attack.

"Denial of service" is the correct answer to the following statement.

Explanation:

DoS attack is that type of cyberattack in which an individual system or an internet connection to the different fakes services which target the resources of the system and it is an illegal act according to 'Computer Misuse Act' which comes in 1990's.

It is an attack which is done by the computer terrorists, they can mostly flood the severals of the fake services in the intention of theft privacy and resources from the system.

<>

The above is the correct option.

<=  This is less than or equal to

<>   This is what means not equal to

>=  This means greater than or equal to.

Mathematics is a lot about accurate analysis, and comparison plays an important role in analysis. The above symbols are being used extensively. And what they mean is mentioned above. Hence, the above answer.

Explanation:

The answer is self explanatory.