Catherine's team is using the concept of on-off device by using a single transmitter to reach multiple receivers.
<h3>What is a device?</h3>
It should be noted that a device simply means something that is adapted for a particular purpose especially an electronic equipment.
In this case, Catherine's team is using the concept of on-off device by using a single transmitter to reach multiple receivers.
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The safety procedure that enables a trusted party to have a copy of the encryption key is called key escrow.
<h3>What is encryption?</h3>
The process to convert data into a coded message that conceals its real meaning is known as encryption.
As we know,
Key escrow is the security measure that makes it possible for a reliable third party to own a copy of the encryption key.
Electronic cash systems employ encrypting to secure traditional transaction information like account information and activity amounts.
Thus, the safety procedure that enables a trusted party to have a copy of the encryption key is called key escrow.
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Answer:
B.O(2n)
Explanation:
The time complexity of solving towers of hanoi problem recursively is O(2n) because there are two recursion calls in the solution of tower of hanoi.First recursive call to move n-1 disks to from source to helper then the user moves nth disk from source to destination after that recursion moves n-1 disks from helper to destination using source as helper rod.So each recursive call make two more recursive call this makes the time complexity be O(2n).
Credit cards. You pay interest when you use them