Questions

At the end of each chapter, you’ll find recap questions that allow to test your understanding. Questions might have multiple correct answers. Correct answers can be found in the Assessment section of the Appendix:

1. Which of the following describes traditional deployments on physical servers (pick two)?
   1. Easy maintenance
   2. Underutilized hardware
   3. Low energy consumption
   4. High upfront costs
2. Which advantages do VMs have compared to containers?
   1. They are more reliable
   2. They are more portable
   3. They are more secure
   4. They are more lightweight
3. What describes the difference between VMs and containers (pick two)?
   1. VM images are small and container images are large
   2. VM images are large and container images are small
   3. VMs share the OS kernel and containers don’t
   4. Containers share the OS kernel and VMs don’t
4. At which level do containers operate?
   1. The orchestrator level
   2. The hypervisor level
   3. The programming language level
   4. The OS level
5. What is typically included in a container image (pick two)?
   1. An OS kernel
   2. A minimal set of OS libraries and packages
   3. A graphical desktop environment
   4. A packaged microservice
6. Which advantages do containers have compared to VMs (pick multiple)?
   1. They are more secure
   2. They are more lightweight
   3. They are more portable
   4. They are faster to start
7. Which software is needed to start and run containers?
   1. A container runtime
   2. A hypervisor
   3. Kubernetes
   4. VirtualBox
8. Which of the following can be used to orchestrate containers?
   1. containerd
   2. CRI-O
   3. Kubernetes
   4. Serverless
9. Which of the following is a cloud service delivery model (pick multiple)?
   1. IaaS, PaaS
   2. SaaS, FaaS
   3. DBaaS
   4. Serverless
10. Which of the following statements about cloud-native is true?
    1. It is an architectural approach
    2. It is the same as a cloud provider
    3. It is similar to cloud-first
    4. It is software that only runs in the cloud
11. Which of the following descriptors applies to cloud-native applications (pick two)?
    1. High degree of automation
    2. High scalability and resiliency
    3. Can only run in a private cloud
    4. Can only run in a public cloud
12. Which of the following statements is true about monolithic applications?
    1. They are easy to update
    2. Their components communicate with each other over the network
    3. They include all the business logic and interfaces
    4. They can be scaled easily
13. Which of the following statements is true for microservices (pick multiple)?
    1. They can only be used for the backend
    2. They work together as a part of a bigger application
    3. They can be developed by multiple teams
    4. They can be deployed independently
14. Which of the following can be done with Kubernetes (pick multiple)?
    1. Self-healing in case of failure
    2. Autoscaling containers
    3. Spawning VMs
    4. Scheduling containers on different hosts
15. Which project served as an inspiration for Kubernetes?
    1. OpenStack
    2. Docker
    3. Borg
    4. OpenShift