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Compose networking, Alembic/Django migrations, SQLAlchemy pools, secrets, volumes, and everyday incidents when a Python service talks to Postgres in containers.
Compose networking, migrations, connection pools, secrets, volumes, and everyday incidents when a Node service talks to Postgres in containers.
Production scenarios covering configuration, health checks, connection management, migrations, container security, observability, resource limits, and database transport security.
CTE, upserts, indexing strategies, and planner basics. Mix of single-answer and multiple-answer items; multi-select questions ask you to select every correct statement.
Core SQL with PostgreSQL flavor: types, constraints, DML, and basic DDL. Mix of single-answer and multiple-answer items; multi-select questions ask you to select every correct statement.
WAL, replication, vacuum strategy, and advanced planner/storage topics. Mix of single-answer and multiple-answer items; multi-select questions ask you to select every correct statement.
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