Questions

1. Which concurrent collection can implement different types of collections under the covers?
2. What is the default internal collection type implemented by the collection in question 1?
3. Which collection type is frequently used as an implementation of the producer/consumer pattern?
4. Which concurrent collection contains key/value pairs?
5. Which method is used to add values to ConcurrentQueue<T>?
6. Which methods are used to add and get items in ConcurrentDictionary?
7. Are extension methods used with the concurrent collections thread-safe?