Answer:
MODEM(Modulator Demodulator)
Explanation:
A modem is a device used in data communication that allows analog signal to be sent over a telephone line.
The modem works by converting the analog signal into digital data that the computer understands. The digital data is converted back to its original form at the receiver end.
Modem modulates analog signal from a telephone line to digital data the computer can understand. also, at the receiver end, it demodulates the digital data back to its original analog signal.
Answer is D. <span>
</span><span>(Advanced Research Projects Agency) ARPA, by US Department of Defense.</span>
Answer:A) O(1)
Explanation:Double linked chain is the type of the data structures that are linked with each other .There are the components that contain the set of records in a queue manner and forms the links which are referred as the nodes.
The operation performed by the dequeue operator is of eliminating the element which is at the front. So, when the operation of the dequeue operation gets invoked then the functioning of initializing of new dequeue and removing the front value by O(1) method.