Which of the following is/are NOT CORRECT statement?
(A) The first record in each block of the data file is known as actor record.
(B) Dense index has index entries for every search key value in the data file.
(C) Searching is harder in the B+ tree than B- tree as the all external nodes linked to each other.
(D) In extendible hashing the size of directory is just an array of 2d-1, where d is global depth.
Choose the correct answer from the options given below:
1
(A), (B) and (C) Only
2
(A), (C) and (D) Only
3
(A), (B) and (D) Only
4
(A), (B), (C) and (D) Only