1. What is Mutation operation ? Junior A. the root operation used to create, update or delete data, expected to cause server-side side effects B. the persistent connection, typically WebSockets via graphql-ws, that carries pushed event payloads to subscribers C. the root operation that opens a long-lived stream pushing real-time updates to the client as events occur D. a dedicated return object wrapping the affected entity plus metadata so a write can request fields on its result
2. Which term means: "the root operation used to create, update or delete data, expected to cause server-side side effects"? Junior A. Subscription transport B. Subscription operation C. Mutation operation D. Serial execution
3. Which statement is correct? Junior A. Mutation operation — a client-predicted result applied to the cache immediately before the server confirms a write, then reconciled B. Mutation operation — the root operation that opens a long-lived stream pushing real-time updates to the client as events occur C. Mutation operation — the persistent connection, typically WebSockets via graphql-ws, that carries pushed event payloads to subscribers D. Mutation operation — the root operation used to create, update or delete data, expected to cause server-side side effects
4. What is Serial execution ? Mid A. the root operation used to create, update or delete data, expected to cause server-side side effects B. a dedicated return object wrapping the affected entity plus metadata so a write can request fields on its result C. the persistent connection, typically WebSockets via graphql-ws, that carries pushed event payloads to subscribers D. the guarantee that top-level write fields run one after another in order rather than in parallel, preventing race conditions
5. Which term means: "the guarantee that top-level write fields run one after another in order rather than in parallel, preventing race conditions"? Mid A. Subscription transport B. Optimistic response C. Subscription operation D. Serial execution
6. Which statement is correct? Mid A. Serial execution — a dedicated return object wrapping the affected entity plus metadata so a write can request fields on its result B. Serial execution — a client-predicted result applied to the cache immediately before the server confirms a write, then reconciled C. Serial execution — the guarantee that top-level write fields run one after another in order rather than in parallel, preventing race conditions D. Serial execution — the root operation that opens a long-lived stream pushing real-time updates to the client as events occur
7. What is Subscription operation ? Junior A. the root operation that opens a long-lived stream pushing real-time updates to the client as events occur B. the persistent connection, typically WebSockets via graphql-ws, that carries pushed event payloads to subscribers C. the guarantee that top-level write fields run one after another in order rather than in parallel, preventing race conditions D. a dedicated return object wrapping the affected entity plus metadata so a write can request fields on its result
8. Which term means: "the root operation that opens a long-lived stream pushing real-time updates to the client as events occur"? Junior A. Optimistic response B. Mutation payload type C. Subscription operation D. Mutation operation
9. Which statement is correct? Junior A. Subscription operation — a client-predicted result applied to the cache immediately before the server confirms a write, then reconciled B. Subscription operation — the root operation that opens a long-lived stream pushing real-time updates to the client as events occur C. Subscription operation — the persistent connection, typically WebSockets via graphql-ws, that carries pushed event payloads to subscribers D. Subscription operation — a dedicated return object wrapping the affected entity plus metadata so a write can request fields on its result
10. What is Subscription transport ? Mid A. the root operation used to create, update or delete data, expected to cause server-side side effects B. the guarantee that top-level write fields run one after another in order rather than in parallel, preventing race conditions C. a client-predicted result applied to the cache immediately before the server confirms a write, then reconciled D. the persistent connection, typically WebSockets via graphql-ws, that carries pushed event payloads to subscribers
11. Which term means: "the persistent connection, typically WebSockets via graphql-ws, that carries pushed event payloads to subscribers"? Mid A. Serial execution B. Subscription operation C. Subscription transport D. Mutation operation
12. Which statement is correct? Mid A. Subscription transport — the root operation that opens a long-lived stream pushing real-time updates to the client as events occur B. Subscription transport — the persistent connection, typically WebSockets via graphql-ws, that carries pushed event payloads to subscribers C. Subscription transport — a dedicated return object wrapping the affected entity plus metadata so a write can request fields on its result D. Subscription transport — the guarantee that top-level write fields run one after another in order rather than in parallel, preventing race conditions
13. What is Mutation payload type ? Senior A. the root operation that opens a long-lived stream pushing real-time updates to the client as events occur B. the root operation used to create, update or delete data, expected to cause server-side side effects C. a dedicated return object wrapping the affected entity plus metadata so a write can request fields on its result D. a client-predicted result applied to the cache immediately before the server confirms a write, then reconciled
14. Which term means: "a dedicated return object wrapping the affected entity plus metadata so a write can request fields on its result"? Senior A. Optimistic response B. Subscription transport C. Mutation payload type D. Subscription operation
15. Which statement is correct? Senior A. Mutation payload type — a dedicated return object wrapping the affected entity plus metadata so a write can request fields on its result B. Mutation payload type — the root operation used to create, update or delete data, expected to cause server-side side effects C. Mutation payload type — the guarantee that top-level write fields run one after another in order rather than in parallel, preventing race conditions D. Mutation payload type — the root operation that opens a long-lived stream pushing real-time updates to the client as events occur
16. What is Optimistic response ? Mid A. the root operation that opens a long-lived stream pushing real-time updates to the client as events occur B. a client-predicted result applied to the cache immediately before the server confirms a write, then reconciled C. the guarantee that top-level write fields run one after another in order rather than in parallel, preventing race conditions D. the persistent connection, typically WebSockets via graphql-ws, that carries pushed event payloads to subscribers
17. Which term means: "a client-predicted result applied to the cache immediately before the server confirms a write, then reconciled"? Mid A. Subscription transport B. Mutation operation C. Serial execution D. Optimistic response
18. Which statement is correct? Mid A. Optimistic response — a client-predicted result applied to the cache immediately before the server confirms a write, then reconciled B. Optimistic response — the root operation used to create, update or delete data, expected to cause server-side side effects C. Optimistic response — the guarantee that top-level write fields run one after another in order rather than in parallel, preventing race conditions D. Optimistic response — the root operation that opens a long-lived stream pushing real-time updates to the client as events occur