Accenture Interview Questions 2026

What differences do you see between Selenium and Playwright in automation testing? Cover architecture, browser support, speed, built-in waiting mechanisms, and cross-language support.

How can you retrieve all the options available in a dropdown using Selenium? Explain the Select class, how to handle both static and dynamic dropdowns, and edge cases like dropdowns built with div/ul instead of the native select element.

What are the different wait mechanisms in Selenium (Implicit, Explicit, Fluent Wait), and when should each be used? Explain the downsides of Thread.sleep() and how WebDriverWait improves reliability.

How do you handle dynamic elements or changing locators in Selenium automation? Discuss strategies like relative locators, XPath axes, CSS attribute wildcards, and Page Object Model to insulate tests from DOM changes.

If a team currently using Selenium plans to migrate to Playwright, how would you help them adopt the new framework? Cover project structure, locator migration, parallel execution setup, and CI integration.

What is the purpose of the indexOf() method and how can it be used when removing duplicate characters from a string in Java? Walk through an O(n) solution using a LinkedHashSet or boolean array.

How does adding + "" help convert a char value into a String in Java? Explain Java's string concatenation rules, why char + "" produces a String while char + char produces an int, and alternative approaches like String.valueOf(char) or Character.toString(char).

When two developers push changes to the same file in Git simultaneously, how would you resolve the merge conflict? Walk through: pulling latest, identifying conflict markers (<<<, ===, >>>), choosing which changes to keep, testing after resolution, and committing the merge.

Have you worked with CI/CD pipelines, and how were they used in your project? Describe the tools used (Jenkins, GitHub Actions, GitLab CI), the stages in your pipeline, how tests were triggered, and how deployments were automated.

What is the difference between async and defer attributes in JavaScript? When would you use each one?

What is Critical CSS, and how does it improve page load performance in React applications?

What techniques can be used to optimize images in React or Next.js applications for better performance?

How would you optimize video delivery in a web application to reduce load times and improve user experience?

What causes unnecessary re-renders in React, and how can React.memo, useMemo, and useCallback help improve performance?

What are resource hints such as preload, prefetch, and dns-prefetch? Explain when you would use each of them.

A React application has a slow initial page load. What steps would you take to identify and fix the performance bottlenecks?

How would you optimize the loading of third-party scripts such as analytics, chat widgets, or advertising libraries?

What strategies would you use to improve Core Web Vitals (LCP, FID/INP, CLS) in a React application?

A component renders hundreds of items and users experience UI lag. How would you investigate and optimize the rendering performance?

You are a BA on a project where stakeholders from Finance, Operations, and IT all have conflicting requirements. How do you resolve this?

What does @SpringBootApplication actually do? Which three annotations does it combine, and what does each one do?

Design a REST controller in Spring Boot for a "create order" endpoint. What annotations and validation would you use to ensure a malformed request returns 400 instead of crashing?

Explain constructor injection vs field injection (@Autowired on a field) in Spring. Why do most teams now prefer constructor injection?

How do you implement centralized exception handling across all controllers in a Spring Boot application, so you don't repeat try/catch in every endpoint?

What does Spring Boot Actuator give you out of the box for a microservice running in production? Name at least 3 endpoints and what each is used for.