1. What is Federation ? Junior A. a federated object type, identified by a @key, that can be referenced and extended across multiple subgraphs B. an architecture composing multiple independently owned subgraphs into one unified supergraph for clients C. one service owning a slice of the federated schema that the gateway combines with others into the whole D. the composition layer that plans and executes a client query across subgraphs and merges their partial results
2. Which term means: "an architecture composing multiple independently owned subgraphs into one unified supergraph for clients"? Junior A. Schema registry B. Apollo Client C. Federation D. Entity
3. Which statement is correct? Junior A. Federation — a popular client library providing a normalized cache, hooks and declarative data fetching for front-end apps B. Federation — one service owning a slice of the federated schema that the gateway combines with others into the whole C. Federation — a service storing schema versions and running composition and breaking-change checks in CI before publishing D. Federation — an architecture composing multiple independently owned subgraphs into one unified supergraph for clients
4. What is Subgraph ? Mid A. an architecture composing multiple independently owned subgraphs into one unified supergraph for clients B. a federated object type, identified by a @key, that can be referenced and extended across multiple subgraphs C. the composition layer that plans and executes a client query across subgraphs and merges their partial results D. one service owning a slice of the federated schema that the gateway combines with others into the whole
5. Which term means: "one service owning a slice of the federated schema that the gateway combines with others into the whole"? Mid A. Subgraph B. Apollo Client C. Gateway D. Entity
6. Which statement is correct? Mid A. Subgraph — a popular client library providing a normalized cache, hooks and declarative data fetching for front-end apps B. Subgraph — an architecture composing multiple independently owned subgraphs into one unified supergraph for clients C. Subgraph — one service owning a slice of the federated schema that the gateway combines with others into the whole D. Subgraph — a federated object type, identified by a @key, that can be referenced and extended across multiple subgraphs
7. What is Gateway ? Mid A. an architecture composing multiple independently owned subgraphs into one unified supergraph for clients B. a popular client library providing a normalized cache, hooks and declarative data fetching for front-end apps C. the composition layer that plans and executes a client query across subgraphs and merges their partial results D. a service storing schema versions and running composition and breaking-change checks in CI before publishing
8. Which term means: "the composition layer that plans and executes a client query across subgraphs and merges their partial results"? Mid A. Apollo Client B. Gateway C. Entity D. Subgraph
9. Which statement is correct? Mid A. Gateway — one service owning a slice of the federated schema that the gateway combines with others into the whole B. Gateway — the composition layer that plans and executes a client query across subgraphs and merges their partial results C. Gateway — a service storing schema versions and running composition and breaking-change checks in CI before publishing D. Gateway — a federated object type, identified by a @key, that can be referenced and extended across multiple subgraphs
10. What is Entity ? Mid A. one service owning a slice of the federated schema that the gateway combines with others into the whole B. a popular client library providing a normalized cache, hooks and declarative data fetching for front-end apps C. a federated object type, identified by a @key, that can be referenced and extended across multiple subgraphs D. the composition layer that plans and executes a client query across subgraphs and merges their partial results
11. Which term means: "a federated object type, identified by a @key, that can be referenced and extended across multiple subgraphs"? Mid A. Entity B. Gateway C. Federation D. Apollo Client
12. Which statement is correct? Mid A. Entity — a federated object type, identified by a @key, that can be referenced and extended across multiple subgraphs B. Entity — the composition layer that plans and executes a client query across subgraphs and merges their partial results C. Entity — an architecture composing multiple independently owned subgraphs into one unified supergraph for clients D. Entity — a popular client library providing a normalized cache, hooks and declarative data fetching for front-end apps
13. What is Apollo Client ? Junior A. a popular client library providing a normalized cache, hooks and declarative data fetching for front-end apps B. the composition layer that plans and executes a client query across subgraphs and merges their partial results C. a service storing schema versions and running composition and breaking-change checks in CI before publishing D. one service owning a slice of the federated schema that the gateway combines with others into the whole
14. Which term means: "a popular client library providing a normalized cache, hooks and declarative data fetching for front-end apps"? Junior A. Subgraph B. Schema registry C. Apollo Client D. Entity
15. Which statement is correct? Junior A. Apollo Client — a federated object type, identified by a @key, that can be referenced and extended across multiple subgraphs B. Apollo Client — an architecture composing multiple independently owned subgraphs into one unified supergraph for clients C. Apollo Client — the composition layer that plans and executes a client query across subgraphs and merges their partial results D. Apollo Client — a popular client library providing a normalized cache, hooks and declarative data fetching for front-end apps
16. What is Schema registry ? Senior A. an architecture composing multiple independently owned subgraphs into one unified supergraph for clients B. a federated object type, identified by a @key, that can be referenced and extended across multiple subgraphs C. a popular client library providing a normalized cache, hooks and declarative data fetching for front-end apps D. a service storing schema versions and running composition and breaking-change checks in CI before publishing
17. Which term means: "a service storing schema versions and running composition and breaking-change checks in CI before publishing"? Senior A. Schema registry B. Subgraph C. Gateway D. Apollo Client
18. Which statement is correct? Senior A. Schema registry — one service owning a slice of the federated schema that the gateway combines with others into the whole B. Schema registry — a service storing schema versions and running composition and breaking-change checks in CI before publishing C. Schema registry — the composition layer that plans and executes a client query across subgraphs and merges their partial results D. Schema registry — a federated object type, identified by a @key, that can be referenced and extended across multiple subgraphs