1. What is async/await ? Mid A. an object from Grand Central Dispatch that schedules blocks of work serially or in parallel B. a unit of asynchronous work that runs concurrently and can be awaited or cancelled C. a reference type that serializes access to its mutable state to prevent data races D. keywords letting a function suspend and resume so asynchronous code reads sequentially
2. Which term means: "keywords letting a function suspend and resume so asynchronous code reads sequentially"? Mid A. Sendable B. Task C. async/await D. DispatchQueue
3. Which statement is correct? Mid A. async/await — an object from Grand Central Dispatch that schedules blocks of work serially or in parallel B. async/await — a reference type that serializes access to its mutable state to prevent data races C. async/await — a unit of asynchronous work that runs concurrently and can be awaited or cancelled D. async/await — keywords letting a function suspend and resume so asynchronous code reads sequentially
4. What is Actor ? Senior A. a reference type that serializes access to its mutable state to prevent data races B. a marker indicating a type is safe to pass across concurrency boundaries without races C. an object from Grand Central Dispatch that schedules blocks of work serially or in parallel D. keywords letting a function suspend and resume so asynchronous code reads sequentially
5. Which term means: "a reference type that serializes access to its mutable state to prevent data races"? Senior A. Actor B. Task C. async/await D. Sendable
6. Which statement is correct? Senior A. Actor — a reference type that serializes access to its mutable state to prevent data races B. Actor — keywords letting a function suspend and resume so asynchronous code reads sequentially C. Actor — a unit of asynchronous work that runs concurrently and can be awaited or cancelled D. Actor — a marker indicating a type is safe to pass across concurrency boundaries without races
7. What is Task ? Mid A. a reference type that serializes access to its mutable state to prevent data races B. keywords letting a function suspend and resume so asynchronous code reads sequentially C. a unit of asynchronous work that runs concurrently and can be awaited or cancelled D. a marker indicating a type is safe to pass across concurrency boundaries without races
8. Which term means: "a unit of asynchronous work that runs concurrently and can be awaited or cancelled"? Mid A. DispatchQueue B. Task C. Actor D. async/await
9. Which statement is correct? Mid A. Task — a unit of asynchronous work that runs concurrently and can be awaited or cancelled B. Task — a marker indicating a type is safe to pass across concurrency boundaries without races C. Task — an object from Grand Central Dispatch that schedules blocks of work serially or in parallel D. Task — keywords letting a function suspend and resume so asynchronous code reads sequentially
10. What is Sendable ? Senior A. keywords letting a function suspend and resume so asynchronous code reads sequentially B. a unit of asynchronous work that runs concurrently and can be awaited or cancelled C. an object from Grand Central Dispatch that schedules blocks of work serially or in parallel D. a marker indicating a type is safe to pass across concurrency boundaries without races
11. Which term means: "a marker indicating a type is safe to pass across concurrency boundaries without races"? Senior A. Sendable B. DispatchQueue C. Task D. async/await
12. Which statement is correct? Senior A. Sendable — a unit of asynchronous work that runs concurrently and can be awaited or cancelled B. Sendable — an object from Grand Central Dispatch that schedules blocks of work serially or in parallel C. Sendable — a reference type that serializes access to its mutable state to prevent data races D. Sendable — a marker indicating a type is safe to pass across concurrency boundaries without races
13. What is DispatchQueue ? Junior A. a reference type that serializes access to its mutable state to prevent data races B. an object from Grand Central Dispatch that schedules blocks of work serially or in parallel C. keywords letting a function suspend and resume so asynchronous code reads sequentially D. a unit of asynchronous work that runs concurrently and can be awaited or cancelled
14. Which term means: "an object from Grand Central Dispatch that schedules blocks of work serially or in parallel"? Junior A. Actor B. Sendable C. async/await D. DispatchQueue
15. Which statement is correct? Junior A. DispatchQueue — a unit of asynchronous work that runs concurrently and can be awaited or cancelled B. DispatchQueue — a reference type that serializes access to its mutable state to prevent data races C. DispatchQueue — a marker indicating a type is safe to pass across concurrency boundaries without races D. DispatchQueue — an object from Grand Central Dispatch that schedules blocks of work serially or in parallel