Questions

1. Which of these is not an implementation of the fork/join pattern?
   1. System.Threading.Barrier
   2. System.Threading.Countdown
   3. Parallel.For
   4. Parallel.ForEach
2. Which of these is the implementation of the lazy pattern in TPL?
   1. Lazy<T>
   2. LazySingleton
   3. LazyInitializer
3. Which pattern relies on achieving high throughput to reduce latency?
   1. Lazy
   2. Shared state
   3. Speculative processing
4. Which pattern can you use if you need to filter out data from a list and return a single output?
   1. Aggregation
   2. MapReduce