Concurrency interview questions

1. A.an object from Grand Central Dispatch that schedules blocks of work serially or in parallel
2. B.a unit of asynchronous work that runs concurrently and can be awaited or cancelled
3. C.a reference type that serializes access to its mutable state to prevent data races
4. D.keywords letting a function suspend and resume so asynchronous code reads sequentially

Answer + AI explanation with Pro

1. A.Sendable
2. B.Task
3. C.async/await
4. D.DispatchQueue

Answer + AI explanation with Pro

1. A.async/await — an object from Grand Central Dispatch that schedules blocks of work serially or in parallel
2. B.async/await — a reference type that serializes access to its mutable state to prevent data races
3. C.async/await — a unit of asynchronous work that runs concurrently and can be awaited or cancelled
4. D.async/await — keywords letting a function suspend and resume so asynchronous code reads sequentially

Answer + AI explanation with Pro

1. A.a reference type that serializes access to its mutable state to prevent data races
2. B.a marker indicating a type is safe to pass across concurrency boundaries without races
3. C.an object from Grand Central Dispatch that schedules blocks of work serially or in parallel
4. D.keywords letting a function suspend and resume so asynchronous code reads sequentially

Answer + AI explanation with Pro

1. A.Actor
2. B.Task
3. C.async/await
4. D.Sendable

Answer + AI explanation with Pro

1. A.Actor — a reference type that serializes access to its mutable state to prevent data races
2. B.Actor — keywords letting a function suspend and resume so asynchronous code reads sequentially
3. C.Actor — a unit of asynchronous work that runs concurrently and can be awaited or cancelled
4. D.Actor — a marker indicating a type is safe to pass across concurrency boundaries without races

Answer + AI explanation with Pro

1. A.a reference type that serializes access to its mutable state to prevent data races
2. B.keywords letting a function suspend and resume so asynchronous code reads sequentially
3. C.a unit of asynchronous work that runs concurrently and can be awaited or cancelled
4. D.a marker indicating a type is safe to pass across concurrency boundaries without races

Answer + AI explanation with Pro

1. A.DispatchQueue
2. B.Task
3. C.Actor
4. D.async/await

Answer + AI explanation with Pro

1. A.Task — a unit of asynchronous work that runs concurrently and can be awaited or cancelled
2. B.Task — a marker indicating a type is safe to pass across concurrency boundaries without races
3. C.Task — an object from Grand Central Dispatch that schedules blocks of work serially or in parallel
4. D.Task — keywords letting a function suspend and resume so asynchronous code reads sequentially

Answer + AI explanation with Pro

1. A.keywords letting a function suspend and resume so asynchronous code reads sequentially
2. B.a unit of asynchronous work that runs concurrently and can be awaited or cancelled
3. C.an object from Grand Central Dispatch that schedules blocks of work serially or in parallel
4. D.a marker indicating a type is safe to pass across concurrency boundaries without races

Answer + AI explanation with Pro

1. A.Sendable
2. B.DispatchQueue
3. C.Task
4. D.async/await

Answer + AI explanation with Pro

1. A.Sendable — a unit of asynchronous work that runs concurrently and can be awaited or cancelled
2. B.Sendable — an object from Grand Central Dispatch that schedules blocks of work serially or in parallel
3. C.Sendable — a reference type that serializes access to its mutable state to prevent data races
4. D.Sendable — a marker indicating a type is safe to pass across concurrency boundaries without races

Answer + AI explanation with Pro

1. A.a reference type that serializes access to its mutable state to prevent data races
2. B.an object from Grand Central Dispatch that schedules blocks of work serially or in parallel
3. C.keywords letting a function suspend and resume so asynchronous code reads sequentially
4. D.a unit of asynchronous work that runs concurrently and can be awaited or cancelled

Answer + AI explanation with Pro

1. A.Actor
2. B.Sendable
3. C.async/await
4. D.DispatchQueue

Answer + AI explanation with Pro

1. A.DispatchQueue — a unit of asynchronous work that runs concurrently and can be awaited or cancelled
2. B.DispatchQueue — a reference type that serializes access to its mutable state to prevent data races
3. C.DispatchQueue — a marker indicating a type is safe to pass across concurrency boundaries without races
4. D.DispatchQueue — an object from Grand Central Dispatch that schedules blocks of work serially or in parallel

Answer + AI explanation with Pro