What is the primary purpose of database normalization?
- To create complex queries
- To increase data redundancy and improve data integrity
- To reduce data redundancy and improve data integrity
- To speed up data retrieval
The primary purpose of database normalization is to reduce data redundancy and improve data integrity. It involves organizing data in a way that minimizes duplication and dependency.
You have a microservices architecture with multiple Docker containers. How would you ensure high availability and fault tolerance using Kubernetes?
- Implement Docker Swarm for container orchestration
- Manually restart containers in case of failure
- Rely on the default settings for automatic high availability
- Use Kubernetes Deployments with multiple replicas
To ensure high availability and fault tolerance in a microservices architecture with Docker containers, Kubernetes Deployments are used. They allow you to define and manage multiple replicas of your application, ensuring that it runs across multiple nodes, minimizing downtime and increasing resilience.
Which tool is primarily used for container orchestration in Kubernetes?
- Ansible
- Docker Compose
- Docker Swarm
- Kubernetes
Kubernetes is the primary tool used for container orchestration in the context of Docker containers. It automates the deployment, scaling, and management of containerized applications, providing a robust and scalable solution for container orchestration.
What is the first step in the TDD cycle?
- Refactor code
- Run all tests
- Write a failing test
- Write production code
The first step in the Test-Driven Development (TDD) cycle is to write a failing test. This ensures that you start by defining the expected behavior before writing the actual code.
Kubernetes enables _______ container orchestration, providing tools for deploying, scaling, and managing containerized applications.
- Automated
- Centralized
- Dynamic
- Efficient
Kubernetes enables automated container orchestration. It automates the deployment, scaling, and management of containerized applications, allowing for efficient and scalable operations.
What are some common tools used for testing infrastructure as code?
- All of the above
- Ansible
- Packer
- Terraform
Common tools for testing Infrastructure as Code include Terraform, Ansible, and Packer. These tools enable developers to automate and test the provisioning and configuration of infrastructure, ensuring reliability and efficiency.