Answer: To be useful for most household applications, DC voltage is passed through a step-down transformer.
Explanation: Voltage coming through AC or DC outlets is typically far too high for most household appliances to handle, so the current is passed through a step-down transformer to reduce the voltage to a usable level.
Answer: Transmission rate
Explanation:
Transmission rate is measured in bits per second and it transmitted the data at the different rate across the circuit. The speed in which the data rate is transferred from one device to anther is known as transmission rate.
The transmission rate are always less as compared to signalling rate because the signalling rate contain the total data which basically include the overhead to control the information.
Therefore, transmission rate is the correct option.
Answer:
The correct answer is BC → A, A does not hold over S. we noticed the tuples (1 ,2 ,3 ) and (4 ,2 ,3) which can hold over S)
Explanation:
Solution
No, since in this case the instance of S is provided. so such particular dependencies are unable to breach through such instance, but unable to tell which the dependencies hold towards S.
A functional dependency holds towards only when a relation forms a statement regarding the complete allowed instances of relation.
Answer:
the user cannot use a computer system without hardware and software
