To prepare for interviews, you need to anticipate questions addressing database backup and recovery strategies. Common questions might include:

• "What strategies do you use for database backup and recovery?"
• "How do you ensure minimal data loss during a recovery process?"
• "What are the advantages and disadvantages of different backup types?"

These questions assess your knowledge of backup methodologies, your ability to minimize data loss, and your familiarity with various backup types to ensure data integrity and business continuity.

Backup Types and Strategies

• Full Backup: Involves a complete copy of the database. It is comprehensive but resource-intensive.
• Incremental Backup: Captures only the changes made since the last backup, saving time and storage.
• Differential Backup: Backs up data changed since the last full backup, balancing between full and incremental backups.

Why It Matters: Understanding the differences helps you choose the most suitable strategy based on resource availability and recovery time objectives.

Recovery Point Objective (RPO) & Recovery Time Objective (RTO)

• RPO: Represents the maximum acceptable amount of data loss measured in time.
• RTO: Defines the target time for recovery after a disruption.

Why It Matters: These metrics guide the selection of backup strategies and help ensure that business operations resume effectively after data loss.

Scheduling and Automation

• Automating backups ensures regular data protection without manual intervention, reducing the risk of human error.
• Scheduling ensures backups occur during low-usage periods, minimizing impact on performance.

Why It Matters: Automation and scheduling ensure consistent, reliable backups, and minimize interruptions to business operations.