What is a common practice in Chaos Engineering when using tools like Gremlin?

Disabling all monitoring during experiments to avoid false alerts

Running experiments only in development environments to avoid any risk

Running experiments in a controlled manner with a defined blast radius

Automatically rolling back any changes made during the experiment

A team is adopting Infrastructure as Code for the first time. They want to ensure that changes to infrastructure are reviewed and approved before being applied. Which practice is most important?

Use a configuration management tool that automatically applies changes without review

Store IaC files in a version control system and use pull requests for changes

Use a CI pipeline that applies changes as soon as they are committed

Keep IaC files on a shared drive and have the lead engineer review them manually

Which principle is central to Chaos Engineering?

Ensuring that all failures are immediately reported to the incident management team

Preventing any failure from occurring in the production environment

Using only simulated environments for all failure testing

Hypothesizing about system behavior under failure and validating it through experiments

Certified Tester Quality in DevOps

Domain 4Objective 3

Infrastructure and Reliability Engineering CT-QDO Practice Questions (Page 4)

Part of the Domain 4: Tools and Practices in DevOps domain, which makes up ~19% of our current practice bank. ISTQB does not publish an official question count, but from its 60-minute exam (~25–40 total, ~5–8 in this domain), expect 1–2 from this objective — we provide 28 practice questions to prepare you well beyond it. (estimate)

28questions here

6free pages

6concepts

Questions 16–20

16foundation · easy
What is a common practice in Chaos Engineering when using tools like Gremlin?
Select an answer first
17foundation · easy
Which tool is specifically designed to randomly terminate instances in a production environment to test resilience?
Select an answer first
18application · medium
An organization uses Puppet to manage configuration on thousands of servers. They want to ensure that configuration changes are rolled out gradually and can be rolled back if issues arise. Which Puppet feature is most relevant?
Select an answer first
19application · medium
A team is adopting Infrastructure as Code for the first time. They want to ensure that changes to infrastructure are reviewed and approved before being applied. Which practice is most important?
Select an answer first
20foundation · easy
Which principle is central to Chaos Engineering?
Select an answer first

Finished these 5 questions?

Review the revealed explanations, or continue through the curriculum.

Next 5 questions →Back to CT-QDO

Free Basic Practice is a study aid with revealable answers — not a scored exam. Examers.io is independent and not affiliated with or endorsed by ISTQB. “CT-QDO” is a trademark of its owner, used for identification only.

Infrastructure and Reliability Engineering CT-QDO Practice Questions (Page 4)

Questions 16–20

What is a common practice in Chaos Engineering when using tools like Gremlin?

Which tool is specifically designed to randomly terminate instances in a production environment to test resilience?

An organization uses Puppet to manage configuration on thousands of servers. They want to ensure that configuration changes are rolled out gradually and can be rolled back if issues arise. Which Puppet feature is most relevant?

A team is adopting Infrastructure as Code for the first time. They want to ensure that changes to infrastructure are reviewed and approved before being applied. Which practice is most important?

Which principle is central to Chaos Engineering?

Keep studying — Domain 4: Tools and Practices in DevOps