Hard Disk Performance Quiz

What is defined as the time required by the read/write head to move from one track to another?

• Capacity

• Data transfer rate

• Seek Time

• Rotational Latency

What is the number of bytes per second that can be read from the disk and transferred to the processor?

• Capacity

• Rotational Latency

• Seek Time

• Data transfer rate

What is the time required by the read/write head to rotate to the requested sector from the current position?

• Data transfer rate

• Seek Time

• Rotational Latency

• Capacity

What does a defragmentation program do to restore performance of a disk?

• Increase the seek time

• Reduce the disk capacity

• Reorganise the allocation of sectors to files

• Decrease the data transfer rate

What occurs when a stored file on a hard disk is requested by an application program?

• The hard disk generates an interrupt

• The head moves to an incorrect track

• The operating system stops the hard disk from spinning

• The application program executes a statement to write a file

Which part of a hard disk is used to spin/hold the platters?

_______ are circular disks made of non-magnetic material and are coated with a thin layer of a magnetic material.

Information is written to or read from a platter as it rotates past __________ heads

Any _____ can be chosen for reading and writing

The data is read from the disk by detecting the ______ in magnetisation