PostgreSQL Database Administration Certified Professional V15 SC-PSQLDP15

PostgreSQL 15 Database Administration Certified Professional

Certification Code: SC-PSQLDP15

Advanced Skills Validation

The PostgreSQL Database Administration Certified Professional V15 (SC-PSQLDP15) certification validates a comprehensive set of advanced skills and competencies specific to PostgreSQL version 15. Based on the official syllabus, and incorporating high-level activities such as clustering, advanced backup methodologies, replication, and performance tuning, this certification confirms proficiency in the following areas:

1. Clustering

• Clustering Concepts: In-depth understanding of PostgreSQL clustering techniques, including master-slave, multi-master, and shared-nothing architectures.
• Cluster Implementation: Configuration and deployment of clusters using tools like Patroni, Stolon, or built-in logical replication.
• High Availability & Failover: Implementing automated failover mechanisms and conducting failover testing to ensure uptime.
• Data Consistency & Conflict Resolution: Managing data consistency across clusters and handling conflicts in multi-master environments.

2. Backup Methodologies (3-2-1-1 Rule)

• Backup Strategy Awareness:
  • 3: Maintain three copies of the data.
  • 2: Store them on two different media types.
  • 1: Keep one copy offsite.
  • 1: Ensure one copy is air-gapped or offline.
• Backup Techniques:
  • Logical Backups: Using pg_dump and pg_dumpall .
  • Physical Backups: Using pg_basebackup and other tools for live backups.
  • Incremental Backups: Using WAL archiving and tools such as Barman.
• Backup Integrity: Regular validation, restoration drills, and backup automation to guarantee data recoverability.

3. Replication

• Streaming Replication: Setting up and managing primary-standby configurations using PostgreSQL’s native streaming replication.
• Logical Replication: Enabling selective data replication and supporting cross-version upgrades.
• Monitoring & Maintenance: Tracking replication lag, performance, and health, and carrying out preventive maintenance.
• Failover & Conflict Management: Promoting standby nodes and resolving replication conflicts.

4. Performance and Tuning

• Query Optimization: Analyzing queries using EXPLAIN , query plans, and indexing strategies.
• Server Tuning: Adjusting PostgreSQL configurations ( postgresql.conf ) for optimal performance under various workloads.
• Resource Management: Efficient handling of CPU, memory, and I/O to eliminate performance bottlenecks.
• Monitoring Tools: Utilizing tools such as pg_stat_statements , pgBadger, and others for diagnostics.
• Table Maintenance: Executing VACUUM , managing table bloat, and maintaining storage health.
• Connection Pooling: Enhancing connection management with tools like PgBouncer to reduce latency and improve scalability.

5. Security and Compliance

• Advanced Security Settings: Enabling SSL/TLS encryption, LDAP integration, and enforcing strong authentication methods.
• Role-Based Access Control (RBAC): Defining fine-grained access policies to ensure least-privilege enforcement.
• Regulatory Compliance: Aligning database practices with standards like GDPR, HIPAA, and PCI-DSS.
• Auditing and Logging: Implementing robust tracking of data access and changes for compliance and forensic analysis.

Assessment Methods

• Theoretical Exam: A comprehensive written exam covering all essential and advanced PostgreSQL 15 topics.
• Practical Exam: A hands-on exam where candidates must configure, manage, and troubleshoot a PostgreSQL 15 environment.
• Scenario-Based Questions: Real-world situations testing applied knowledge in areas like disaster recovery, performance bottlenecks, and replication configuration.
• Performance Metrics Evaluation: Candidates are assessed on measurable outcomes such as query optimization, system availability, and cluster consistency.

This certification confirms a high level of technical expertise in PostgreSQL 15 administration, ensuring professionals are equipped to manage advanced PostgreSQL deployments in enterprise-grade environments.