Proxy

1. Describe the four application areas specified for the Proxy pattern.
2. State a unifying description of the Proxy pattern that coves all four application areas.
3. Distinguish between the intentions of the Proxy and the Adapter patterns.
4. Distinguish between the intentions for Proxy and Decorator even though they are structurally similar.
5. List potential benefits that can be derived from the Proxy pattern in each of the four application areas.
6. Explain the use of Proxy for copy-on-write operations.