A multi-user data base must implement ________ to prevent a lost update problem.
A) encryption
B) locking
C) decryption
D) anti-virus software

Question

Quizplus · Accepted Answer

Locking is a technique used to prevent two or more users from accessing and modifying the same data simultaneously, which can lead to a lost update problem. By locking the data, only one user can access it at a time, and changes made by one user are not visible to others until the lock is released. This helps to ensure the integrity of the data and prevent conflicts between users. Encryption, decryption, and anti-virus software are not directly related to preventing lost update problems in a multi-user database.

A Multi-User Data Base Must Implement ________ to Prevent a Lost