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Introduction to DevOps Final Quiz Answers

Question 1: Select the correct statement regarding technology and innovation.

  • Technology is the enabler of innovation.
  • DVD technology and innovation allowed Blockbuster Video to succeed.
  • It is more important to have innovative technology than it is to have an innovative business model.
  • Technology alone is the driver of innovation.

Answer: Technology is the enabler of innovation.
Explanation: Technology enables innovation, but innovation itself comes from ideas, processes, and people, not just the technology.

Question 2: Select the statement that correctly describes DevOps.

  • DevOps is the combining of the development team and the operations team into one team.
  • DevOps is about teams using new tools such as automated pipelines for the fastest workflow possible.
  • DevOps is primarily automation by DevOps Engineers.
  • DevOps is a cultural change in which the development team and the operations team work together in cross-functional teams.

Answer: DevOps is a cultural change in which the development team and the operations team work together in cross-functional teams.
Explanation: DevOps focuses on collaboration between development and operations, breaking down silos to improve efficiency and productivity.

Question 3: DevOps has three dimensions. Which is considered the most important?

  • Methods
  • Tools
  • Agility
  • Culture

Answer: Culture
Explanation: The culture aspect of DevOps is the most important, as it encourages collaboration, communication, and shared responsibilities across teams.

Question 4: Select the statement that correctly describes Extreme Programming (XP).

  • When one phase ends, the next one begins. There is no provision for going back.
  • XP is an approach that values up-front planning with no provision for changing the requirements.
  • XP is an iterative approach with tighter and tighter feedback loops.
  • Teams work in silos.

Answer: XP is an iterative approach with tighter and tighter feedback loops.
Explanation: Extreme Programming (XP) emphasizes rapid iterations, continuous feedback, and improvement.

Question 5: What is the title of the book written by Jez Humble and David Farley that sets out the principles and technical practices for rapid, incremental delivery of products?

  • The Goal
  • Continuous Delivery
  • The DevOps Handbook
  • The Phoenix Project

Answer: Continuous Delivery
Explanation: Continuous Delivery by Jez Humble and David Farley outlines how to automate and improve software delivery for rapid, incremental product releases.

Question 6: What is behavior-driven development (BDD)?

  • Writing unit tests for the code you wish you had
  • Focusing on the system as observed from the outside
  • Focusing on the functions of the system from the inside
  • When test cases drive the design and development of code

Answer: Focusing on the system as observed from the outside
Explanation: BDD emphasizes collaboration between developers, testers, and non-technical stakeholders to define expected system behavior from a user perspective.

Question 7: Select the correct statement regarding cloud-native microservices.

  • Multiple instances are split out.
  • Each function has its own database and keeps track of its own state.
  • Applications are designed as a collection of stateless microservices.
  • All of the above.

Answer: All of the above.
Explanation: Cloud-native microservices typically involve stateless services, with each having its own database and being deployed in multiple instances for scalability.

Question 8: Select the statement that correctly describes the bulkhead pattern.

  • This pattern deliberately kills services for testing.
  • This pattern isolates failing services to limit the scope of failure.
  • This pattern enables an application to handle transient failures by delaying longer between each retry.
  • This pattern trips once failures reach a certain limit or threshold. It detects a problem and avoids cascading failures.

Answer: This pattern isolates failing services to limit the scope of failure.
Explanation: The bulkhead pattern isolates failures to prevent them from affecting other parts of the system, similar to how bulkheads in ships prevent water from flooding the entire vessel.

Question 9: Select the correct statement regarding Taylorism.

  • Taylorism is workers building individually crafted products.
  • Taylorism is applying science to management and it led to the factory assembly line.
  • Taylorism is working in teams that make their own decisions.
  • All of the above.

Answer: Taylorism is applying science to management and it led to the factory assembly line.
Explanation: Taylorism is based on scientific management principles, emphasizing efficiency, specialization, and control over workers’ tasks.

Question 10: Which statement correctly describes required DevOps behaviors?

  • DevOps encourages building bespoke infrastructure and maintaining it.
  • DevOps encourages avoiding change and experimentation.
  • DevOps encourages breaking down silos and working together.
  • DevOps encourages using ticket queues and escalations.

Answer: DevOps encourages breaking down silos and working together.
Explanation: DevOps aims to promote collaboration between teams, breaking down traditional silos to improve overall workflow and productivity.

Question 11: Which one of the following is a key element in Infrastructure as Code?

  • Describing infrastructure in executable, textual format
  • Comprehensive written documentation
  • Building and maintaining unique servers
  • System and software manual configuration

Answer: Describing infrastructure in executable, textual format
Explanation: Infrastructure as Code (IaC) involves managing and provisioning infrastructure using code, which can be executed and automated.

Question 12: What is Continuous Integration?

  • Integrating code in larger and larger amounts
  • Deploying code to a testing or staging environment
  • The process of continuous building, testing, and integrating into the master branch
  • Deploying code to a production-like environment

Answer: The process of continuous building, testing, and integrating into the master branch
Explanation: Continuous Integration (CI) focuses on frequently integrating code into a shared repository and running automated tests to detect errors early.

Question 13: Select the statement that describes Continuous Delivery.

  • Build code so it can be deployed to production at any time.
  • Integrate code to a shared repository.
  • Deploy code to a testing or staging environment.
  • Use automation to deploy directly to production.

Answer: Build code so it can be deployed to production at any time.
Explanation: Continuous Delivery ensures that the code is always ready for production deployment, reducing the time to release new features or fixes.

Question 14: It is good practice to align teams with _____.

  • the architecture you expect them to build
  • the organization’s long-term mission
  • the organization’s business domains
  • All of the above

Answer: All of the above
Explanation: Aligning teams with business domains, architecture, and the long-term mission ensures that teams are focused on delivering value that aligns with organizational goals.

Question 15: Select the correct statement regarding DevOps.

  • DevOps is a separate team that sits between Dev and Ops.
  • DevOps is Dev and Ops working together with the same mindset.
  • DevOps is Dev and Ops with a wall of confusion between them.
  • DevOps is done primarily by Ops.

Answer: DevOps is Dev and Ops working together with the same mindset.
Explanation: DevOps focuses on fostering collaboration between development and operations teams to improve the overall software delivery lifecycle.

Question 16: Actions without consequences lead to _____.

  • empowerment
  • shared consciousness
  • apathy
  • good behavior

Answer: apathy
Explanation: Actions without consequences often lead to a lack of motivation and accountability, which results in apathy.

Question 17: Which one of these is an effective metric for measuring social coders?

  • Are you building things that the rest of the company finds valuable?
  • What unique contributions have you made this year?
  • How many lines of code do you develop in a day?
  • How does your production compare to that of your coworkers?

Answer: Are you building things that the rest of the company finds valuable?
Explanation: The value of a social coder is measured by the impact and usefulness of their contributions to the team and company.

Question 18: Which one of these is an example of a vanity metric?

  • Increased number of page views on a website
  • Reduced time to market for new features
  • Reduced time to deploy a release
  • Increased percentage of defects detected in testing

Answer: Increased number of page views on a website
Explanation: Vanity metrics may look good but do not necessarily indicate meaningful progress or success.

Question 19: Which of these is an actionable metric?

  • Mean lead time, or how long it takes for an idea to get to production
  • Change failure rate, or how often new releases fail
  • Mean time to recover, or how long it takes to recover from failure
  • All of the above

Answer: All of the above
Explanation: These metrics provide actionable insights to improve performance and efficiency in the software development process.

Question 20: Who was a leader in developing measures for team culture in relation to DevOps?

  • Patrick Debois
  • Dr. Nicole Forsgren
  • John Allspaw
  • Jez Humble

Answer: Dr. Nicole Forsgren
Explanation: Dr. Nicole Forsgren, co-author of Accelerate, is known for her research on the measures of team culture and performance in DevOps.