List of top Computer Science and IT Engineering Questions asked in AP PGECET

Which SQL operation is not part of the ACID properties?
A B+ tree is preferred over a B-tree for databases because _______ .
In two-phase locking (2PL), a transaction must be _______ .
The isolation level that prevents dirty reads but allows non-repeatable reads is _______ .
In a relational database, a table has 5 attributes and 1000 records. If a query returns 200 records after applying a condition, what is the selectivity of the query?