Top MCQs on B+ Tree Data Structure with Answers

Question 1

Which one of the following we can find by the Track ID and sector ID in B+ Tree?

• Block ID

• User ID

• Block Size

• None of the above.

Question 2

Select one of the following thing which is not present at the disk structure:

• Track

• Block

• Segment Table

• Sector

Question 3

Consider a hard disk with: 
4 surfaces 
64 tracks/surface 
128 sectors/track 
256 bytes/sector 

What is the capacity of the hard disk(in MB)? 

• 8

• 16

• 32

• 64

Question 4

Consider a hard disk with: 

4 surfaces 

64 tracks/surface 

128 sectors/track 

256 bytes/sector 

The disk is rotating at 7200 RPM, what is the data transfer rate(In MBpS)? 

• 15

• 7.5

• 30

• 3.75

Question 5

Consider a hard disk with: 

4 surfaces 

64 tracks/surface 

128 sectors/track 

256 bytes/sector

The disk is rotating at 7200 RPM, what is the average access time(mSec)?

• 8.33

• 4.17

• 16.68

• 33.36