NIELIT 2017 July Scientist B (CS) - Section B: 43

Question

Which one of the following is a key factor for preferring $B$-trees to binary search trees for indexing database relations?

• A. Database relations have a large number of records
• B. Database relations are sorted on the primary key
• C. $B$-trees require less memory than binary search trees
• D. Data transfer from disks is in blocks

Answer 1

Option D (refer https://gateoverflow.in/1364/gate2005-28)