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Table of contents
1.
Introduction
2.
Commonly Asked Mobile Testing Interview Questions and Answers
2.1.
1. What is mobile testing?
2.2.
2. What are the types of mobile testing?
2.3.
3. What are the standard tools used for mobile testing?
2.4.
4. What is the difference between native and hybrid mobile apps?
2.5.
5. How do you test the performance of a mobile app?
2.6.
6. What is the difference between manual and automated testing in mobile testing?
2.7.
7. What are the benefits of using an emulator for mobile testing?
2.8.
8. How do you ensure that your mobile app is compatible with multiple devices and operating systems?
3.
Mobile Testing Planning and Strategy
3.1.
9. What is the role of a mobile tester in an Agile development environment?
3.2.
10. What is the purpose of regression testing in mobile testing?
3.3.
11. What is the difference between acceptance and user acceptance testing in mobile testing?
3.4.
12. How do you test the security of a mobile app?
3.5.
13. What is monkey testing in mobile testing?
3.6.
14. How do you test the battery consumption of a mobile app?
3.7.
15. How do you test the usability of a mobile app?
3.8.
16. What is the difference between a mobile app and a mobile website?
3.9.
17. What is the importance of mobile testing for businesses?
4.
Performing Mobile Testing
4.1.
18. How do you prioritize your testing efforts in mobile testing?
4.2.
19. What is the difference between a white box and a black box testing approach in mobile testing?
4.3.
20. What are the common challenges faced in mobile testing?
4.4.
21. How do you test the localization and internationalization of a mobile app?
4.5.
22. What is the role of device fragmentation in mobile testing?
4.6.
23. What is the difference between a client-side and a server-side mobile app?
5.
Mobile Testing Tools and Frameworks
5.1.
24. How do you test the offline functionality of a mobile app?
5.2.
25. What are some common challenges in mobile testing?
5.3.
26. What is the role of automation in mobile testing?
5.4.
27. What is the difference between manual testing and automation testing?
5.5.
28. What is a tester's role in a mobile app's development process?
5.6.
29. What is the difference between functional and non-functional testing in mobile app testing?
5.7.
30. How do you test the performance of a mobile app?
6.
Frequently Asked Questions
6.1.
What is mobile application testing?
6.2.
What is a mobile tester?
6.3.
What is mobile testing strategy?
6.4.
What is the best tool for mobile testing?
7.
Conclusion
Last Updated: Mar 27, 2024
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Top 30 Mobile Testing Interview Questions and Answers (2024)

Author Nilesh Kumar
0 upvote
Create a resume that lands you SDE interviews at MAANG
Speaker
Anubhav Sinha
SDE-2 @
12 Jun, 2024 @ 01:30 PM

Introduction

Mobile devices have become an integral part of our daily lives as technology continues to evolve. As a result, the demand for skilled portable testers has skyrocketed in recent years. However, landing a mobile testing role can be a challenging task, especially when it comes to preparing for the interview. 

That's why we've compiled a comprehensive list of the most commonly asked mobile testing interview questions to help you make a great impression and secure the job of your dreams. 

mobile testing interview questions

In this blog, we will cover everything from basic testing concepts to advanced mobile testing strategies, so you can feel confident and ready to tackle any question that comes your way.

Commonly Asked Mobile Testing Interview Questions and Answers

1. What is mobile testing?

Mobile testing is the process of testing mobile applications on different mobile devices, operating systems, and network environments to ensure that the applications work as intended and meet quality standards. It is important because mobile devices have become an integral part of our daily lives, and people rely on them for various tasks such as communication, entertainment, and commerce. As a result, the need for high-quality and reliable mobile applications has increased, and mobile testing helps to ensure that these applications meet the needs and expectations of users.

2. What are the types of mobile testing?

The types of mobile testing include 

  • Functional Testing
  • Compatibility Testing
  • Performance Testing
  • Security Testing
  • Usability Testing
types of mobile testing

3. What are the standard tools used for mobile testing?

Some of the standard tools used for mobile testing include 

  • Appium 
  • Selenium
  • TestComplete
  • Experitest
  • Robotium.

4. What is the difference between native and hybrid mobile apps?

Native mobile apps are developed specifically for platforms such as iOS or Android. On the other hand, hybrid mobile apps are built using web technologies (HTML, CSS, and JavaScript) and can run on multiple platforms through a native container.

5. How do you test the performance of a mobile app?

To test the performance of a mobile app, you can use tools such as Appium, Selenium, Jmeter, and Ubertesters to conduct load testing, stress testing, and benchmarking.

6. What is the difference between manual and automated testing in mobile testing?

Manual testing is testing a mobile app manually by executing test cases and verifying the results. On the other hand, automated testing involves using tools and scripts to automate the testing process, allowing for faster and more efficient testing.

7. What are the benefits of using an emulator for mobile testing?

The benefits of using an emulator for mobile testing include cost savings (as you don't need to purchase multiple physical devices), ease of access, and the ability to test on various operating system versions and configurations.

8. How do you ensure that your mobile app is compatible with multiple devices and operating systems?

To ensure compatibility with multiple devices and operating systems, you can conduct compatibility testing using real devices or emulators and testing on different screen sizes, resolutions, and network conditions.

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Mobile Testing Planning and Strategy

9. What is the role of a mobile tester in an Agile development environment?

The role of a mobile tester in an Agile development environment is to continuously test the mobile app throughout the development process, provide feedback to the development team, and work closely with the development team to ensure that the app meets the desired quality standards.

10. What is the purpose of regression testing in mobile testing?

The purpose of regression testing in mobile testing is to ensure that changes or modifications to the mobile app do not impact its existing functionality.

11. What is the difference between acceptance and user acceptance testing in mobile testing?

Acceptance testing is a formal testing process before a product is released. On the other hand, user acceptance testing is the process of evaluating a product by the end-user to determine whether it meets their requirements and expectations.

12. How do you test the security of a mobile app?

To test the security of a mobile app, you can use tools such as AppScan, Burp Suite, and OWASP ZAP to perform security scans and identify potential vulnerabilities such as SQL injection, cross-site scripting, and session hijacking.

13. What is monkey testing in mobile testing?

Monkey testing is a random testing method used to test the stability and robustness of a mobile app. It involves sending random inputs and events to the app to see how it reacts and whether it can handle unexpected inputs and events.

14. How do you test the battery consumption of a mobile app?

To test the battery consumption of a mobile app, you can use tools such as Battery Historian, which provides detailed information on battery usage, or manually monitor the battery level while using the app.

15. How do you test the usability of a mobile app?

To test the usability of a mobile app, you can conduct user testing and gather feedback from real users, perform heuristic evaluations to identify usability issues, and use tools such as UsabilityHub to conduct remote user testing.

16. What is the difference between a mobile app and a mobile website?

A mobile app is a software application designed specifically for mobile devices, while a mobile website is optimized for viewing on mobile devices.

17. What is the importance of mobile testing for businesses?

Mobile testing is essential for businesses as it helps to ensure that their mobile apps are functional, reliable, and provide a positive user experience. This can lead to increased customer satisfaction and loyalty and can also help to minimize the risk of negative publicity and revenue loss due to app failures.

Performing Mobile Testing

18. How do you prioritize your testing efforts in mobile testing?

To prioritize your testing efforts in mobile testing, you can consider factors such as the criticality of the app's functionality, the impact of potential issues, the likelihood of bugs and problems, and the available resources.

19. What is the difference between a white box and a black box testing approach in mobile testing?

White box testing involves testing the 

  • Internal logic and 
  • Structure of the code, 

While black box testing only consists in 

  • Testing the app's functionality and 
  • Ignoring the internal network.

20. What are the common challenges faced in mobile testing?

Some common challenges faced in mobile testing include dealing with a wide range of devices and operating systems, network and connectivity issues, and the need to adapt continuously to new technologies and platforms.

21. How do you test the localization and internationalization of a mobile app?

To test a mobile app's localization and internationalization, you can try different languages, countries, and regions to ensure that the app can handle different character sets and cultural differences.

22. What is the role of device fragmentation in mobile testing?

Device fragmentation refers to the wide range of devices and operating systems that a mobile app may need to support. It is a significant challenge in mobile testing as it requires testing on a wide range of devices and operating systems to ensure compatibility and user experience.

23. What is the difference between a client-side and a server-side mobile app?

The difference between a client-side and a server-side mobile app are:

  • A client-side mobile app is a software application that runs on the client device, such as a smartphone or tablet, and is responsible for processing and displaying data and user interactions. A client-side app communicates with a server over the network to retrieve data or to send and receive updates to the data.
     
  • On the other hand, a server-side mobile app is a software application that runs on a server and is responsible for storing, processing, and managing data. The server-side app communicates with client-side apps to send and receive data and provides a central location for storing and managing data.
     
  • The main difference between client-side and server-side mobile apps is where the processing and data management occurs. Client-side apps are typically designed for ease of use and interactivity and focus on providing a rich user experience. Server-side apps are typically designed for scalability and reliability and focus on centralized data management and processing.

Mobile Testing Tools and Frameworks

24. How do you test the offline functionality of a mobile app?

To test the offline functionality of a mobile app, the following steps can be followed:

  • Disconnect the device from the network: 
    Turn off Wi-Fi or cellular data or put the device in airplane mode to simulate an offline environment.
     
  • Perform common tasks:
    Use the app to view data, create new data, and update existing data. Observe the app's behavior and verify that it functions properly without network connectivity.
     
  • Verify data consistency: 
    Reconnect the device to the network and verify that offline changes are properly synchronized with the server and that the data is consistent across all devices.
     
  • Check error handling:
    Ensure that the app handles errors gracefully when there is no network connectivity, such as by displaying an appropriate error message or providing an alternative offline experience.
     
  • Test with different network conditions:
    Test the app's offline functionality under different network conditions such as low-bandwidth connections or weak signals to ensure it continues to function properly and provide a good user experience even in challenging conditions.

25. What are some common challenges in mobile testing?

Some common challenges in mobile testing include the following:

  • Diversity of devices and platforms
    The wide variety of mobile devices, platforms, and operating systems makes it challenging to test an app on every possible configuration, especially given the rapid pace of technology advancements.
     
  • Network conditions
    Mobile apps are often used in varying network conditions, such as poor connectivity or high latency, and it's challenging to test the app's performance under these conditions in a controlled environment.
     
  • Security concerns
    Mobile apps often handle sensitive information, and many potential security threats, such as malware, data breaches, and hacking, must be considered when testing mobile apps.
     
  • User experience 
    Mobile apps need to be fast, responsive, and user-friendly. It can be challenging to test for all possible user interactions and ensure that the app delivers a positive user experience.
     
  • Integration with other systems
    Mobile apps often need to integrate with other systems, such as backend servers, databases, and cloud services, and testing the integration between these systems can be complex and time-consuming.

26. What is the role of automation in mobile testing?

The roles of automation in mobile testing are discussed below:

  • Automation plays a vital role in mobile testing as it helps to reduce the time and effort required to test an app and also helps to increase the coverage and accuracy of testing. 
     
  • Automated testing can be used to perform repetitive or time-consuming tasks, such as running regression tests, testing the app on different devices and platforms, and testing the app under various network conditions.
     
  • Automated testing helps identify issues early in the development process before they become more complex and expensive. 
     
  • By using automated testing, testers can focus on more complex and creative testing tasks, such as exploratory and performance testing. They can also collaborate more effectively with developers and stakeholders.

27. What is the difference between manual testing and automation testing?

The difference between manual testing and automated testing is discussed below:

  • Manual testing involves testing the app manually by a human tester without using automated tools or scripts. On the other hand, automated testing uses scripts or tools to perform tests automatically.
     
  • Manual testing is essential for verifying an app's overall functionality and user experience and exploring the app in new and creative ways. On the other hand, automated testing is helpful for repetitive or time-consuming tasks, such as regression testing, and for increasing the coverage and accuracy of testing.

28. What is a tester's role in a mobile app's development process?

The Tester Role in Mobile App’s Development process are:

  • The role in the development process of a mobile app is to validate that the app meets the specified requirements and to identify and report any issues or bugs found during testing. 
     
  • Testers play an essential role in ensuring the quality and reliability of the app and in providing feedback to the development team to help improve the app.
     
  • A tester should work closely with the development team, stakeholders, and customers to understand the app's goals and requirements and develop a comprehensive test plan that covers all aspects of the app, including functionality, performance, security, accessibility, and user experience.

29. What is the difference between functional and non-functional testing in mobile app testing?

Here is a comparison between functional and non-functional testing in mobile app testing in table form:

Functional Testing Non-functional Testing
Tests the app's functionality, including features and services. It Tests the performance and usability of the app, including factors such as speed, stability, and security.
Verifies that the app works as expected. Evaluates the overall quality and user experience of the app.
Focuses on testing the app's behavior. Focuses on testing the app's attributes.
Checks if the app meets specified requirements. Checks if the app meets implicit or unstated requirements.
Examples: Unit testing, integration testing, user acceptance testing. Examples: Load testing, performance testing, and security testing.

30. How do you test the performance of a mobile app?

Testing the performance of a mobile app involves evaluating the app's speed, stability, and responsiveness under different conditions and loads. Some standard techniques for performance testing include

  • Load Testing
    This involves testing the app under heavy loads, such as high numbers of concurrent users or large amounts of data, to determine how the app performs and to identify any bottlenecks or performance issues.
     
  • Stress Testing
    This involves testing the app under extreme conditions, such as low memory or battery, to determine the app's behavior and stability in these conditions.
     
  • Endurance Testing
    This involves running the app continuously for an extended period, such as several hours or days, to identify any performance issues that may arise over time.
     
  • Performance Monitoring
    This involves continuously monitoring the app's performance, such as its response time and memory usage, to identify trends or issues and to provide early warning of potential performance problems.

Frequently Asked Questions

What is mobile application testing?

Mobile Application Testing is a process in which we validate a mobile application for its functionality and usability. In the validation, the aim of testing is to make sure the app meets the expected technical and business requirements.

What is a mobile tester?

A mobile tester is a professional responsible for testing mobile applications to ensure they meet quality standards, function correctly, and provide a positive user experience.

What is mobile testing strategy?

Mobile testing strategy outlines the approach and methods for testing mobile applications, covering aspects like device compatibility, usability, performance, and security.

What is the best tool for mobile testing?

The best tool for mobile testing depends on specific project requirements, but popular choices include Appium, Selenium, and TestComplete for cross-platform mobile testing.

Conclusion

This blog of the most asked mobile testing interview questions and answers provides a comprehensive resource for both aspiring and experienced mobile testers. Covering a spectrum of topics from testing strategies and tools to the intricacies of mobile application testing, these insights empower candidates to navigate interviews with confidence. As the mobile testing landscape continues to evolve, staying abreast of industry-relevant questions and demonstrating a nuanced understanding of testing principles becomes paramount. You can also refer

Check out Uber Interview Experience to learn about their hiring process.

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