replication
FDE interview questions tagged replication, across every topic.
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Concepts behind "replication"
The curriculum that explains the ideas these questions test.
Advanced
Change Data Capture (CDC)Change Data Capture streams row-level inserts, updates, and deletes out of a source database so downstream systems stay in near-real-time sync without full reloads. The strong form reads the database transaction log rather than polling tables, which captures deletes, preserves commit order, and adds almost no load to the source. The hard parts are ordering, tombstones for deletes, and applying the stream idempotently so a replay does not corrupt the target.🗄️ Data & SQL Engineering🔒 Premium
Advanced
Consistency, CAP and What Your Workflow Actually NeedsCAP says that when the network partitions you must choose availability or consistency, and it is quoted far more often than it is applied. The useful version for a deployment is narrower: decide per operation how stale a read may be, because most workflows tolerate seconds of staleness and a few tolerate none.⚙️ System Design for AI in Production🔒 Premium