GO Advavnced Quiz 1

1. Which approach is most efficient for appending 1,000 elements to a slice?

2. How can you reliably detect if a channel has been closed by the sender?

3. What is the primary purpose of using sync.Pool in high-concurrency Go applications?

4. What happens when using ':=' inside an if-block on a variable name already declared in the outer scope?

5. Which package is standard for propagating cancellation signals?

6. Why should you pass a sync.WaitGroup to a function as a pointer?

7. What is the effect of the statement: select {} ?

8. What happens if a goroutine panics and is not recovered within that specific goroutine?

9. When is using 'defer mutex.Unlock()' considered poor practice?

10. In Go, what is the internal underlying struct of an empty interface{}?