CouchDB quiz

Test your CouchDB knowledge with a free interactive quiz — 18 questions with answers and explanations. No signup needed to play.

What is CouchDB?

1. What is CouchDB?
2. What is a CouchDB "design document," and what does it typically contain?
3. What does CouchDB's "eventual consistency" model mean for a document read shortly after a write completes elsewhere in a replicated cluster?
4. What is a "view" in CouchDB, and how is it typically defined?
5. What does "multi-master replication" mean in CouchDB, and what problem does it solve?
6. How does CouchDB indicate and let an application resolve a replication conflict on a document?
7. What is Mango (the `_find` API) in CouchDB used for?
8. How does CouchDB expose its API, and what is notable about this design choice?
9. What does `_changes` (the "changes feed") provide in CouchDB?
10. What is the significance of CouchDB documents having a `_rev` (revision) field?
11. What is a "quorum" setting in CouchDB's clustered mode, referring to read/write consistency (`r`/`w` query parameters)?
12. What does a CouchDB map function like `function(doc) { if (doc.type === "article") emit(doc.author, doc.title); }` do when defining a view?

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