Docker Certified Associate Certification Training Course - Inspect Container Processes

The video tutorial explains how to inspect Docker containers from outside using commands like Docker top and Docker inspect. It discusses the isolation and virtualization of containers, highlighting their independence from the host environment. The tutorial also compares containers to virtual machines, noting advantages like IP address configuration and resource management. Key Linux kernel features, such as namespaces and control groups, are explained as mechanisms for container isolation and resource control.

Which command is used to display all running processes associated with Docker containers?

• Docker exec

• Docker top

• Docker run

• Docker ps

What is the primary purpose of container isolation?

• To enhance network speed

• To isolate processes and resources from the host environment

• To improve graphical performance

• To increase storage capacity

Which feature allows containers to have their own IP addresses?

• Volume mounting

• Namespace

• IP address enablement

• Control groups

What is the role of namespaces in containerization?

• To manage CPU usage

• To enhance network speed

• To limit the visibility of processes

• To increase memory allocation

Who developed the concept of namespaces?

• Bill Gates

• Steve Jobs

• Eric Biederman

• Linus Torvalds

What do control groups (cgroups) manage in a containerized environment?

• Network protocols

• Resource usage like CPU and memory

• File system structures

• User interfaces

Which Linux kernel version made namespaces available to the public?

• 4.0

• 3.8

• 5.1

• 2.6