chkdsk is a utility that you use to check for bad sectors on a hard drive , as far as how to run it you open the start menu go to your run bar and type chkdsk then follow the instruction on the screen .
A outlet has a acceptable voltage of 120 vollts and the knob depends on the tester you are using
I don't understand the You tube part, but uh yeah???
Answer:
Passive security attack are the unauthorized disclosure in the network attack. In this type of security attack a system are use for monitoring and sometimes scanning the open port. It basically include the monitoring the unprotected data and traffic analysis.
On the other hand, active security system modify the transmitted data and gain the unauthorized access from the computer system.
This type of security attack basically monitor the file transfer and electronic mail from the attacks which can be pass in the form of viruses in the computer system.
It allows us to precisely tell where places, people (under certain circumstances), etc. are. It is the most widely relied upon mapping system in the world. Using a GPS, you can find almost any plotted (known) location on the Earth. Most mapping operations rely on a GPS and would, otherwise, fail without it.
