DATABASE FUNDAMENTALS
BASICS OF BIG DATA
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Fastness of generation
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Speed of data generation
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Variability
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Both a and b
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Detailed explanation-1: -Velocity (v) is a vector quantity that measures displacement (or change in position, s) over the change in time (t), represented by the equation v = s/t. Speed (or rate, r) is a scalar quantity that measures the distance traveled (d) over the change in time (t), represented by the equation r = d/t.
Detailed explanation-2: -Explanation: Since, velocity is a vector quantity, it has two components to it. The magnitude, which is the speed, and the direction in which the motion is happening.
Detailed explanation-3: -Velocity defines the direction of the movement of the body or the object. Speed is primarily a scalar quantity. Velocity is essentially a vector quantity. It is the rate of change of distance. It is the rate of change of displacement.
Detailed explanation-4: -Speed is a scalar quantity and velocity is a vector quantity. Velocity, being a vector, has both a magnitude and a direction. The magnitude of the velocity vector is the instantaneous speed of the object. The direction of the velocity vector is directed in the same direction that the object moves.