Central article: 

Luca Cardelli, "A Language With Distributed Scope", Computing System,
vol. 8(1), 27-59, 1995.

Questions:

1. How can the concept of private fields of an object be simulated in
   Obliq?

2. Explain the difference between clone(o) and copy(o).

3. Explain how the Prime Number Sieve example works.

4. A procedures is transmitted over the network as a closure consisting
   of a piece of code and a table mapping free variables in the code
   to (network) locations. Would this work in a dynamically scoped
   language?

5. Consider the implicit mutex associated with a serialized
   object. What is the difference between a reentrant mutex and a
   mutex that allows self-inflicted operations to pass without
   acquiring the mutex?

6. The description of signal indicates that at least one waiting
   thread is signalled (and hence allowed to continue provided
   its guard is true). Would it be okay to signal all waiting
   threads? If so why? If not, why not?

7. Protected objects cannot be externally cloned in Obliq. When
   migrating an object (using migrateProc), the object are cloned from
   a different site from where the object is allocated. Why does this
   not violate the protection condition if the object is protected?