47) A certain moving arm disk storage with one head has following specifications : Number of tracks I recording surface 100 Disk rotation speed 2400 rpm Track storage capacity= 62500 bits. The transfer rate will be

2.5 Mbits/s

4.25 Mbits/s

1.5Mbits/s

3.75Mbits/s

Answer is:

2.5 Mbits/s

none of these

Answer is:

CPU protection

memory protection

file protection

all of these

Answer is:

meet prescribed time constraints

aim better resource sharing

aim better system utilization

aim low system overhead

Answer is:

the set of k future references that the operating system will make

the set of future references that the operating system will make in the next 'k' time units

the set of k reference with high frequency

the set of pages that have been referenced in the last k time units

Answer is: