40 Questions
What does a lightweight change approval process based on peer review outperform?
External change approval boards (CABs)
Which cultural indicator predicts IT performance, organizational performance, and burnout reduction?
Generative culture
What is a metric for a company’s learning culture?
Investment in education
What does DevOps imply a closer interaction between?
Development and operations
What is a key characteristic of transformational leadership?
Vision and recognition
What is a predictor of software delivery success, organizational performance, and productivity according to Google's Accelerate Report?
High levels of trust
What is the first step toward continuous delivery?
Implementing continuous integration
Which capability involves having fewer than three active branches in a code repository?
Using trunk-based development method
What is a critical aspect of automated testing according to the text?
Supporting test data management
Which architectural capability allows teams to work independently without relying on other teams for support and services?
Loosely coupled architecture
What is a characteristic of effective test suites according to the text?
They detect real faults and only pass codes can be released
Which capability involves integrating security into the design and testing stages of the software development process?
Shifting left on security
What are the three pillars that DevOps focuses on?
People, process, and technology
What does an effective DevOps strategy formalize and convey?
The route to the final objective
What is the optimal objective state for DevOps?
Total delivery process automation
What is required to maintain peak efficiency, security, and maintainability in DevOps?
Continuing lean optimization
What is crucial to address in a consistent, long-term approach for a seamless move into a DevOps model?
People, process, and technology
What does DevOps combine to boost corporate efficiency and customer satisfaction?
Collaboration, cultural transformation, and automation
What is the purpose of an artifact repository in a CI/CD process?
To serve as both the source for the artifacts required for a build and the target for the deployment of artifacts produced during a build process
What is the primary goal of a pipeline in a CI/CD process?
To eliminate human mistakes and maintain a consistent software release procedure
What is included in the test phase of the CI/CD pipeline?
Automated tests such as integration tests, unit tests, and regression tests
What is the purpose of Infrastructure as Code (IaC) in DevOps?
To automate the supply of IT infrastructure using a high-level descriptive coding language
Which tool is commonly used for open-source continuous integration/continuous delivery?
Jenkins
What should be stored in artifact repositories like Nexus or Artifactory in a CI/CD process?
Various artifacts required for a build and artifacts produced during a build process
What is the primary purpose of using version control systems in software development?
To manage files and coordinate their creation, access, updating, and deletion
What is a significant benefit of using version control in software development?
Assisting in the management of capacity by generating replicas of current servers
How do version control systems contribute to the software development process?
By enabling teams to rapidly and reliably return to a previously validated working state
What is the role of metadata in software development?
To assist in classifying and identifying characteristics of the data they describe
Why is it important to outline the objectives in measurable terms when implementing version control?
To figure out the best way to achieve the objectives
What is the starting point for stories in Agile teams?
The desired business outcome or the problem they are attempting to solve
What is one of the advantages of infrastructure as code (IaC)?
Faster time to market due to automation
What does infrastructure as code (IaC) help prevent?
Mismatched development, test, and deployment environments
What does immutable infrastructure refer to in the context of infrastructure as code (IaC)?
Infrastructure that cannot be changed after provisioning
Which approach is considered the best fit for most businesses when picking an IaC solution?
Declarative approach
What is a disadvantage of the declarative approach to infrastructure automation?
Usually necessitates the use of a professional administrator
What does mutable infrastructure allow development teams to do?
Make ad hoc server adjustments
Which aspect does infrastructure as code (IaC) expedite in the software delivery lifecycle?
Provisioning and ensuring infrastructure consistency
What does infrastructure as code (IaC) prevent by consistently providing the same environment?
Configuration drift
What is critical when automating infrastructure with IaC?
Deciding whether to create mutable or immutable infrastructure
What benefit does immutable infrastructure provide in terms of maintaining consistency between test and deployment environments?
It virtually prevents configuration drift
Study Notes
- DevOps is a mindset for combining collaboration, cultural transformation, and automation to boost corporate efficiency and customer satisfaction.
- DevOps focuses on three pillars: people, process, and technology, with the goal of total delivery process automation.
- The State of DevOps research program by DevOps Research and Assessment (DORA) has identified 24 essential capabilities for software teams based on seven years of research and data from over 32,000 professionals.
- Continuous delivery architecture includes version control for all production artifacts and automated deployment processes.
- Continuous integration is a development strategy that involves regular code checks and fast tests to detect significant regressions.
- Test automation runs software tests automatically throughout the development process, while effective test data management is essential for maintaining adequate test data.
- Security should be integrated into the design and testing stages of the software development process.
- Loosely coupled architecture and architecting for empowered teams enable teams to work independently and add value to the organization.
- Gathering and implementing customer feedback, making the flow of work visible, and fostering team experimentation improve software delivery performance.
- A lightweight change approval process, proactive system health monitoring, work-in-process restrictions, and visualizing work to monitor quality and communicate progress enhance IT performance.
- Encouraging a generative culture, supporting learning, collaboration among teams, and having meaningful work contribute to IT performance.
- Transformational leadership supports the technological and process work key to DevOps.
Test your knowledge of DevOps principles and practices with this quiz. Explore topics like continuous delivery, continuous integration, test automation, security integration, and the essential capabilities identified by the State of DevOps research program.
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