Certified Information Systems Security Professional (CISSP) Practice Exam

What does the isolation of processes in a system ensure?

1. Faster processing speeds

2. Increased data accessibility

3. Integrity and confidentiality

4. Enhanced user experience

The correct answer is: Integrity and confidentiality

The isolation of processes in a system primarily ensures integrity and confidentiality. This is achieved by preventing unauthorized access and interference between different processes running on the same system. When processes are isolated, it means each process operates in its own separate environment, reducing the risk of one process compromising the data or operation of another. For example, if one application is compromised or behaves maliciously, the isolation can restrict its ability to affect other applications or access their data. This architectural approach is fundamental in protecting sensitive information and maintaining the integrity of critical processes by ensuring that they remain unaffected by the operations of other processes. While faster processing speeds, increased data accessibility, and enhanced user experience could be indirect benefits of a well-implemented process isolation strategy, they are not the primary objectives. The key focus is on maintaining a secure environment where the integrity and confidentiality of data are paramount.