1. What is the difference between a Polymorphic and a Metamorphic Virus? (10 Points)
2. Virus detection can be done using Heuristic Code Analysis or Heuristic Code Emulation (Sandboxing). Briefly explain how each technique works and discuss the benefits and limitations of each technique? (10 Points)
3. Using SPF create a DNS TXT record for the example.com domain that only allows the following entities to send email on behalf of example.com. (10 Points)
