I would say digital modulated signals <span />
<span>The strategy in which you periodically look away from the text and ask yourself about the material is called the look-away method.</span>
You only put a numerical expression in numbers if it is over 100, it the calculation correctly.
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Email? Dropbox?...Not sure give one of these a try? Hope this helps
Answer: Mutual authentication
Explanation: Mutual authentication could be referred to a vetting process where the two entities in communication authenticate each other, it could also be referred to as a two-way authentication.
In the scenario above, the cloud service or server authenticates itself with the client and the client authentication itself with the cloud service server by verifying or vetting the certificates of both communicating entities before a secure encrypted connection would be established or created.