True is the correct answer to the given question .
Explanation:
In the longitudinal analysis of designing we are collecting the information from the similar sample frequently over an enlarged time where as in the cross-sectional analysis designing Gathering the information from the population at the given time interval .
The main objective longitudinal designed is used to monitor the variations in the similar sample as a result of frequent analysis of the similar variables that are not possible in the cross-sectional design analysis .
The hardware layer's job is to maintain and put to action central processor units and memory. Hardware layer first check the availability of the for mentioned duo and then decides the need to put one or another into action. Physical and data link layers act the same in the hardware layer. They bot are waiting to be called in action
