2.7. Communication Between Layers

Try these first

1. 1.

   What are system calls used for?

   Hint

   Think about who controls hardware access.

2. 2.

   Name one form of IPC.

   Hint

   Consider ways processes communicate.

3. 3.

   What is the primary function of system calls?

   • Data processing
   • Requesting services
   • Error reporting

   Hint

   Think about how applications interact with the system.

4. 4.

   True or False: IPC is only useful in single-process systems.

   • True
   • False

   Hint

   Consider how many processes are running.

5. 5.

   Design a simple communication scenario using IPC between two processes. Discuss the methods and protocols you would choose.

   Hint

   Consider how teams share tasks in a project.

6. 6.

   Analyze the potential issues that could arise when an application attempts to access a device file that has not been defined in devfs.

   Hint

   Think about how the system manages errors.