Data Classification, Backups, High Availability, and Continuity
Introduction
This lesson completes Domain 3, Security Architecture (18% of SY0-701), with objective 3.3, comparing and contrasting concepts and strategies to protect data, and objective 3.4, explaining the importance of resilience and recovery in security architecture. Data is what attackers want and what the business cannot lose, so the exam tests whether you can classify it, choose the right protection for each state, and design systems that keep running and recover after a failure.
Many questions in this area hinge on a few numbers and terms: RTO, RPO, MTTR, MTBF, full versus incremental backups, hot versus cold sites. Learn those precisely and the scenarios become straightforward.