Answer:
2.489 dB
Solution:
As per the question:
Power ratio, 
The Equivalent of this power ratio in decibel or dB is calculated by taking the log of the power ratio as below:


Thus the value of the power ration in decibel comes out to be 2.489 dB
Netstat
Type netstat -a to get a complete overview.
The answer to this question is A
Answer:
to close an open application
First you must pick what application you want to do your document on and chose how you want to map out your document.