All of the Following Are True About B+-Tree Indexes and Their

Multiple Choice

All of the following are true about B+-tree indexes and their files, except _____.

A) A file with a B+-tree index built over the field by which the file is stored in sequence is an indexed sequential file.
B) A track split might lead to a cylinder split.
C) A track split might not lead to a cylinder split.
D) A cylinder split must lead to a change in the tree index.
E) A cylinder split must lead to an increase in the number of levels of the index tree.