Question bank

Interview questions, with guidance on how to answer

834 questions across 64 roles. Open one to see what a strong answer includes and common slips, then drill it out loud with Ava. New to answer structure? Start with the learning hub.

572 questions match your filters.

TechnicalEntry levelSecurity Engineer
You notice a user account logging in from two countries an hour apart. What would you check, and what would you do?
Tests: Detection & incident response
TechnicalMid levelSecurity Engineer
A scanner reports three thousand vulnerabilities across your systems. How do you decide what to fix first?
Tests: Vulnerability management
TechnicalMid levelSecurity Engineer
Walk me through how you would threat model a new feature that lets users upload files to share with others.
Tests: Threat modelling
TechnicalMid levelSecurity Engineer
What are the most common ways cloud environments get breached, and what controls would you put in place first?
Tests: Cloud & infrastructure security
TechnicalMid levelSecurity Engineer
How would you add security checks to a development pipeline without making engineers wait or ignore the results?
Tests: Application security
TechnicalSeniorSecurity Engineer
You get credible evidence that an attacker has had access to a production server for a week. How do you lead the response?
Tests: Detection & incident response
TechnicalSeniorSecurity Engineer
How would you design secure access to production for engineers, so nobody has standing admin rights but on-call work still gets done quickly?
Tests: Identity & access control
TechnicalAny levelSecurity Engineer
Tell me about a security issue you found or fixed that you are proud of. How did you discover it, and what was the impact?
Tests: Application security
TechnicalEntry levelQA / Test Automation Engineer
If I asked you to test a login page, what kinds of cases would you think about beyond just a correct username and password?
Tests: Test design & strategy
TechnicalEntry levelQA / Test Automation Engineer
You find a bug that only happens sometimes. What goes into a bug report so a developer can actually fix it?
Tests: Bug investigation & reporting
TechnicalEntry levelQA / Test Automation Engineer
How would you test a REST API endpoint that creates a new customer record? What would you check?
Tests: API & integration testing
TechnicalMid levelQA / Test Automation Engineer
What makes end-to-end browser tests brittle, and how do you write them with tools like Playwright or Cypress so they stay reliable?
Tests: UI test automation
TechnicalMid levelQA / Test Automation Engineer
Your nightly test suite fails randomly about one run in five. How do you track down and deal with the flaky tests?
Tests: CI integration & test reliability
TechnicalMid levelQA / Test Automation Engineer
How do you decide which tests belong at the unit, integration and end-to-end levels for a new feature?
Tests: Test design & strategy
TechnicalMid levelQA / Test Automation Engineer
How would you load test a checkout service before a big sale, and what results would make you worried?
Tests: Performance testing
TechnicalSeniorQA / Test Automation Engineer
The full test suite takes ninety minutes and developers are skipping it. How would you get feedback faster without losing confidence?
Tests: CI integration & test reliability
TechnicalAny levelQA / Test Automation Engineer
A release is due tomorrow and you have found a serious but rare bug. How do you decide and communicate whether it should block the release?
Tests: Bug investigation & reporting
TechnicalEntry levelNetwork Engineer
Explain what happens on the network, step by step, when someone types a website address into their browser and presses enter.
Tests: Routing & switching
TechnicalEntry levelNetwork Engineer
What is a VLAN, and why would an office separate its traffic into different VLANs?
Tests: Routing & switching
TechnicalEntry levelNetwork Engineer
A user says they cannot reach the internet, but their coworker sitting next to them can. How would you troubleshoot it?
Tests: Network troubleshooting