What kind of lock allows multiple concurrent transactions to read a database row simultaneously but blocks any transaction from writing to it? MCQ with Answer and Explanation

Explanation:
The CREATE command is a DDL statement because it defines, modifies, or creates database structures like tables, schemas, or indexes.

Explanation:
A DBMS provides features like data independence, reduced redundancy, security, and concurrent access.

Explanation:
Isolation ensures that the execution of concurrent transactions does not interfere with one another, making them appear as if they are executing sequentially.