1. What is Stale read ? Mid A. a guarantee that copies will converge to the same value given enough time without further updates, but may diverge temporarily B. a guarantee that a client always observes its own prior update, even if other clients see an older copy C. returning a value from a fast store that no longer matches the current authoritative source D. the bounded period during which a served copy may lag behind the true source value
2. Which term means: "returning a value from a fast store that no longer matches the current authoritative source"? Mid A. Stale read B. Cache coherence C. Eventual consistency D. Staleness window
3. Which statement is correct? Mid A. Stale read — returning a value from a fast store that no longer matches the current authoritative source B. Stale read — a guarantee that a client always observes its own prior update, even if other clients see an older copy C. Stale read — the bounded period during which a served copy may lag behind the true source value D. Stale read — the property that multiple copies of the same data across nodes agree on a single up-to-date value
4. What is Cache coherence ? Senior A. returning a value from a fast store that no longer matches the current authoritative source B. the property that multiple copies of the same data across nodes agree on a single up-to-date value C. a guarantee that copies will converge to the same value given enough time without further updates, but may diverge temporarily D. a guarantee that a client always observes its own prior update, even if other clients see an older copy
5. Which term means: "the property that multiple copies of the same data across nodes agree on a single up-to-date value"? Senior A. Cache coherence B. Stale read C. Read-your-writes D. Staleness window
6. Which statement is correct? Senior A. Cache coherence — a guarantee that copies will converge to the same value given enough time without further updates, but may diverge temporarily B. Cache coherence — a guarantee that a client always observes its own prior update, even if other clients see an older copy C. Cache coherence — the bounded period during which a served copy may lag behind the true source value D. Cache coherence — the property that multiple copies of the same data across nodes agree on a single up-to-date value
7. What is Eventual consistency ? Mid A. a guarantee that a client always observes its own prior update, even if other clients see an older copy B. a guarantee that copies will converge to the same value given enough time without further updates, but may diverge temporarily C. the property that multiple copies of the same data across nodes agree on a single up-to-date value D. the bounded period during which a served copy may lag behind the true source value
8. Which term means: "a guarantee that copies will converge to the same value given enough time without further updates, but may diverge temporarily"? Mid A. Cache coherence B. Stale read C. Staleness window D. Eventual consistency
9. Which statement is correct? Mid A. Eventual consistency — a guarantee that a client always observes its own prior update, even if other clients see an older copy B. Eventual consistency — a guarantee that copies will converge to the same value given enough time without further updates, but may diverge temporarily C. Eventual consistency — the property that multiple copies of the same data across nodes agree on a single up-to-date value D. Eventual consistency — returning a value from a fast store that no longer matches the current authoritative source
10. What is Staleness window ? Senior A. the bounded period during which a served copy may lag behind the true source value B. the property that multiple copies of the same data across nodes agree on a single up-to-date value C. returning a value from a fast store that no longer matches the current authoritative source D. a guarantee that copies will converge to the same value given enough time without further updates, but may diverge temporarily
11. Which term means: "the bounded period during which a served copy may lag behind the true source value"? Senior A. Cache coherence B. Staleness window C. Stale read D. Eventual consistency
12. Which statement is correct? Senior A. Staleness window — the property that multiple copies of the same data across nodes agree on a single up-to-date value B. Staleness window — the bounded period during which a served copy may lag behind the true source value C. Staleness window — returning a value from a fast store that no longer matches the current authoritative source D. Staleness window — a guarantee that a client always observes its own prior update, even if other clients see an older copy
13. What is Read-your-writes ? Mid A. returning a value from a fast store that no longer matches the current authoritative source B. the property that multiple copies of the same data across nodes agree on a single up-to-date value C. the bounded period during which a served copy may lag behind the true source value D. a guarantee that a client always observes its own prior update, even if other clients see an older copy
14. Which term means: "a guarantee that a client always observes its own prior update, even if other clients see an older copy"? Mid A. Read-your-writes B. Cache coherence C. Eventual consistency D. Stale read
15. Which statement is correct? Mid A. Read-your-writes — returning a value from a fast store that no longer matches the current authoritative source B. Read-your-writes — a guarantee that copies will converge to the same value given enough time without further updates, but may diverge temporarily C. Read-your-writes — the property that multiple copies of the same data across nodes agree on a single up-to-date value D. Read-your-writes — a guarantee that a client always observes its own prior update, even if other clients see an older copy