18.7. Protocol Design and Custom Application Layer

Try these first

1. 1.

   What is a protocol?

   Hint

   Think about communication between computers.

2. 2.

   Give an example of a status code.

   Hint

   Consider HTTP status codes.

3. 3.

   What does '200 OK' signify in a protocol?

   • Request failed
   • Request succeeded
   • Input error

   Hint

   Link it back to the response examples we've discussed.

4. 4.

   True or False: Text protocols are generally faster than binary protocols.

   • True
   • False

   Hint

   Consider the efficiency of data transfer.

5. 5.

   Create a custom protocol for a messaging app including commands for sending and receiving messages.

   Hint

   Think about how messages will be structured and responded.

6. 6.

   Compare two different custom protocols you’ve learned about in terms of efficiency and readability.

   Hint

   Consider what each type of application needs.