PostgreSQL Database Administration and Performance Tuning
Advanced PostgreSQL management, optimization, and troubleshooting on production-like systems.
About This Assessment
Database skills remain critical in 2026, with data management ranking among the top hiring priorities. This assessment validates hands-on PostgreSQL administration including backup/recovery, replication setup, query optimization, and performance tuning. Candidates work with real database workloads to diagnose and fix issues that mirror production scenarios.
What Candidates Will Do
Configure streaming replication between primary and standby servers with automatic failover
Identify and optimize slow queries using EXPLAIN plans and create appropriate indexes
Set up point-in-time recovery (PITR) and perform a database restore from backup
Configure connection pooling with pgBouncer and tune PostgreSQL parameters for workload
Implement row-level security policies and manage user roles and permissions
Automated Grading
Verify replication is functioning with proper lag metrics, validate backup files exist and can be restored, check query execution times improve after optimization, confirm security policies prevent unauthorized data access, and validate connection pooling reduces backend connections
Environment
Ubuntu 22.04 LTS with PostgreSQL 15+, pgBouncer, pg_stat_statements extension enabled. Provision 2 VMs for replication tasks. Pre-populate database with realistic dataset and slow queries.
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$99.00