The Complete Practical Docker Guide - Container Processes and Resources

The video tutorial explains Docker's functionality on different operating systems, focusing on how containers interact with system resources like CPU and RAM. It highlights the importance of resource management using cgroups and the single responsibility principle, advocating for one process per container for better scalability and manageability. The tutorial concludes with an introduction to Docker's main components.

What does Docker Desktop create on macOS or Windows to run containers?

• A Windows virtual machine

• A macOS virtual machine

• A small Linux virtual machine

• A large Linux server

What Linux feature allows containers to have separate resources?

• Clustering

• Namespacing

• Partitioning

• Virtualization

What is a computer fundamentally composed of?

• Applications and networks

• Hardware and software

• Files and processes

• Users and permissions

What happens when a Docker container starts?

• It creates a new virtual machine

• It installs new software

• It starts processes in a Linux machine

• It shuts down the host system

What is the default resource limit for Docker containers?

• 50% of CPU and RAM

• No limit

• 25% of disk space

• 10% of network bandwidth

Why is it recommended to run a single process per Docker container?

• For enhanced security

• To reduce costs

• For better scalability and manageability

• To increase speed

What principle suggests running one process per container?

• Single Responsibility Principle

• Multi-Tasking Principle

• Load Balancing Principle

• Resource Allocation Principle