CISSP Practice Exam 2025 – Complete Prep Guide

In the context of information security, a domain is defined as a set of objects accessible under common rules. This concept encompasses various entities, such as users, computers, applications, and other resources that are managed under a unified governance framework. Within a domain, access rights, security policies, and administrative controls are typically established to enforce consistent security measures and access permissions.

This definition aligns with how domains function in networking and security architectures—where they serve to group and manage resources and users according to specific protocols and permissions. For instance, in an Active Directory environment, a domain allows for centralized management of user accounts, computer accounts, and security policies, making it easier to secure and manage the network.

The other options do not directly reflect this concept. A collection of applications focuses on the software aspect rather than on how objects are governed and related. A physical location for server machines describes a geographical aspect rather than a logical grouping based on security rules. A method of securing wireless communications refers to specific technologies or protocols without addressing the broader definition of a domain in information security.