Answer:
True is the correct Answer for the above question.
Explanation:
- Computer security is a security in which data of the computer is secured from the access of unauthorized users. It is primarily achieved to stop the access grant to the unauthorized user.
- It means that there is an authorization point which decides that the user is authorized or not. If the user is authorized then only he can enter the system otherwise he can not able to enter the system.
- It helps to secure the data and the data is the important point of the computer system.
- The question also states the same which is described above. Hence true is the correct answer.
Answer: 83.17
Explanation:
By definition, the dB is an adimensional unit, used to simplify calculations when numbers are either too big or too small, specially in telecommunications.
It applies specifically to power, and it is defined as follows:
P (dB) = 10 log₁₀ P₁ / P₂
Usually P₂ is a reference, for instance, if P₂ = 1 mW, dB is called as dBm (dB referred to 1 mW), but it is always adimensional.
In our question, we know that we have a numerical ratio, that is expressed in dB as 19.2 dB.
Applying the dB definition, we can write the following:
10 log₁₀ X = 19.2 ⇒ log₁₀ X = 19.2 / 10 = 1.92
Solving the logarithmic equation, we can compute X as follows:
X = 10^1.92 = 83.17
X = 83.17
B. False, it doesnt only have to be applied word by word
That's B.
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