What it is: The Aurora database setup containing a writer instance and reader instances.

What it’s for:

• Separate read and write traffic.
• Failover within the cluster.

Key ideas:

• Clients can use a writer endpoint and a reader endpoint.
• Failover can promote a reader to writer.

Exam cues:

• “separate endpoints for reads/writes” → Aurora cluster endpoints.

Hard words:

• *promote* /prəˈmoʊt/: nâng lên
• *writer* /ˈraɪtər/: máy ghi
• *reader* /ˈriːdər/: máy đọc