a) The physical size of a given file is 16384 bytes in a magnetic disk, with each cluster consisting of 8 sectors, each of which having a fixed size of 512 bytes. How many sectors and clusters will...

a) The physical size of a given file is 16384 bytes in a magnetic disk, with each cluster consisting of 8 sectors, each of which having a fixed size of 512 bytes.

1. How many sectors and clusters will the above file take?


2. What will the logical size of the above file be if there is a slack space of 2930 B?


3. How can we make sure that there will be no residues from previously deleted files? discuss

b) Suppose that a car has passed the checkpoint,
A, towards the checkpoint,
B, with an average speed of 150 Km/hr and reached B at 10:35:40.

1- Express the recorded time at point B in seconds.

2- If the car has reached the next checkpoint,
B
at 10:35:40, what will be time that this car has passed the checkpoint,
A, if the distance between A and B is 100 Km? The time should be in hrs-min-sec format. Show all your calculation steps.