AIncorrect Answer

Disk transfers are purely electronic, and is the process of transferring data from the disk drive to the computer and vice-versa. Disk transfer times are usually measured in nano- or microseconds. Seek time is the average time taken to move the drive head to the track on the disk which holds the data you need. It is mechanical (involving moving a drive head) and thus slow. It is often measured in milliseconds. Milliseconds are much larger than microseconds, and thus are not insignificant. In this context, "insignificant" means "much smaller".

close

BIncorrect Answer

Disk transfers are purely electronic, and is the process of transferring data from the disk drive to the computer and vice-versa. Disk transfer times are usually measured in nano- or microseconds. Seek time is the average time taken to move the drive head to the track on the disk which holds the data you need. It is mechanical (involving moving a drive head) and thus slow. It is often measured in milliseconds. Milliseconds are much larger than microseconds, and thus are not the same...

close

CCorrect Answer

Disk transfers are purely electronic, and is the process of transferring data from the disk drive to the computer and vice-versa. Disk transfer times are usually measured in nano- or microseconds. Seek time is the average time taken to move the drive head to the track on the disk which holds the data you need. It is mechanical (involving moving a drive head) and thus slow. It is often measured in milliseconds. Milliseconds are much larger than microseconds, and thus seek times do greatly exceed transfer times.

close

DIncorrect Answer

Seek time is the average time taken to move the drive head to the track on the disk which holds the data you need. It is mechanical (involving moving a drive head) and thus slow. It is often measured in milliseconds. It has nothing directly to do with searching, and certainly is involved with all types of data, and not just sorted lists...

close

EIncorrect Answer

Seek time is the average time taken to move the drive head to the track on the disk which holds the data you need. It is mechanical (involving moving a drive head) and thus slow. It is often measured in milliseconds, not nanoseconds (or even microseconds).

close

A B C D E TELL ME NEXT INDEX
 
 
When accessing a disk block, the seek time
  1. is insignificant in comparison to transfer times
  2. is about the same as transfer times
  3. greatly exceeds transfer times
  4. is the time taken to search for data in a sorted list of database rows
  5. is measured in nanoseconds