When considering data security in MongoDB, which is a primary focus?

Data authorization is a primary focus in MongoDB when considering data security because it involves controlling who can access certain data and what actions they can perform on that data. In a database system, authorization ensures that only authenticated users or applications can interact with the database, safeguarding sensitive information from unauthorized access.

This aspect of data security is crucial because it allows administrators to define roles and permissions, which dictate user capabilities like reading, writing, and modifying data. By implementing robust authorization mechanisms, MongoDB can ensure that data remains confidential and is accessed only by those who have legitimate permissions.

In contrast, while data synchronization, data consistency, and data normalization are important concepts in database management, they do not specifically address security concerns in the same way that data authorization does. Data synchronization deals with ensuring that data across different systems or copies remains up-to-date, data consistency refers to maintaining accurate and reliable data within the database, and data normalization focuses on reducing redundancy and improving the structure of the data. However, these concepts do not directly contribute to securing the data against unauthorized access, making data authorization the correct choice in the context of data security.