Which two statements correctly describe the relationship between data files and logical database
structures?
A.
A segment cannot span data files.
B.
A data file can belong to only one tablespace.
C.
An extent cannot span data files.
D.
The size of an Oracle data block in a data file should be the same as the size of an OS block.
Explanation:
https://mohibalvi.wordpress.com/tag/alter-tablespace/
B&C
B and C
A single extent can never span data files.
From: https://docs.oracle.com/database/121/CNCPT/logical.htm#CNCPT1095
B C
BC
BC
BC