Mobile Testing Interview Questions
By Indeed Editorial Team
Updated 22 September 2022
Published 15 December 2020
The Indeed Editorial Team comprises a diverse and talented team of writers, researchers and subject matter experts equipped with Indeed's data and insights to deliver useful tips to help guide your career journey.
Mobile testers are in great demand with mobile application companies for their expertise with programming languages, software testing and QA testing. This knowledge enables them to test mobile applications and ensure that they exceed expectations when it comes to their quality, usability and security features. Generally, mobile testers have a computer science educational background. Although this is not compulsory, it is a good idea to align your skills to the requirements of the position.
In this article, we will review and practise answering mobile testing interview questions ahead of the job interview to improve your chances of getting the job.
Mobile Testing Interview Questions
Here are some frequently asked mobile testing interview questions for freshers as well as experienced job candidates:
Can you elaborate on the differences between mobile application and mobile device testing?
Give examples of mobile application types.
Differentiate between native apps, web apps and hybrid apps.
What are the different types of mobile app testing?
What defect tracking tools would you use for mobile testing?
Which bugs will you commonly encounter while mobile testing?
What are the best practices for Android testing?
Which automation tools are compatible with Android and iOS mobiles?
Explain the steps for A/B testing for an iOS app.
What is a roboelectric testing framework?
Which major criteria will you consider while performing end-to-end mobile testing?
For mobile testing, what should be the selection criteria for test automation tool?
How do you know when to choose automation testing and when to go for manual testing?
What is Detox, and what are its characteristics?
Explain how the monkey tool helps mobile testing.
Explain the importance of usability testing.
Explain compatibility testing and its types.
Explain performance testing.
What metrics would you use for sanity tests on mobile apps?
List some of the cloud-based software testing tools that you have used.
What are some of the common issues that testers face during mobile testing on cloud computing?
Explain GPRS and how it works.
What are the different classes of GPRS, and what are their uses?
Explain the difference between WAP testing and web testing.
Explain mobile API testing.
Define product-based testing for mobile testing.
Give the four levels of software testing.
Which apps can you use to record crash logs for Android and iOS?
In your opinion, which are the most important mobile app test cases?
What is the difference between an emulator and a simulator?
Explain the difference between a user agent and a simulator.
How would you create an emulator on Android?
How would you install an SD card in an emulator?
What are some of the challenges impacting mobile app testing?
Explain PRC and ADB.
Give the extension of Android files and iOS files.
How will you test different screen sizes of the devices?
Which web services does a mobile application use?
When testing a mobile application through the Black Box technique, what things should you consider?
Explain the strategy for testing a new mobile app.
Which tools will you use for iPhone and iPad testing?
What does mobile security testing include?
Explain MO SMS messaging.
Explain APNs and where they are stored.
How will you check the CPU usage on mobile devices?
What is Appium?
Which operating systems does Appium support?
Which programming language does Appium not support?
Mobile Testing Interview Questions With Sample Answers
Here are a few mobile testing interview questions with sample answers that you can refer to when preparing for your job interview:
List the types of mobile application testing.
This is a common question that interviewers ask during mobile testing interviews. Some employers may ask you only to list the different types, while others may ask you to elaborate and explain each type.
Example: "The different types of mobile application testing are functional testing, usability testing, compatibility testing, performance testing and security testing. Additionally, you can perform installation testing, localisation testing, manual testing, automated testing and mobile device testing."
What are the key features that a mobile application should have?
Interviewers often ask this question to test your basic knowledge of mobile applications. You can list the features and, if you have the time, explain how each benefits the application.
Example: "Some of the key features that a mobile application should have are that it should be simple to use, provide reliable data security, have fast loading speed and have a responsive design. As people use applications for financial transactions, it should have a secure payment gateway. To keep up with new developments, it should be easy to upgrade. It should also offer personalisation options to allow users to customize it as per their requirement. Additionally, it should have search features and it should integrate with social media."
What plan would you follow for mobile application testing?
The interviewer will ask this question to assess if you are clear about the scope of work involved in mobile application testing and if you understand the functions and features you need to test while staying within the project specification and budget.
Example: "I will first try to figure out what I want to achieve and within what constraints. Then I will identify what testing type is necessary for the application. The next step is preparing a test case document for each of the application's features and functionality and following that with both manual and automated testing. Afterwards, to test if the application is easy to use, I will carry out compatibility testing on different mobile devices and do user interface testing, interface testing, external factors testing and accessibility testing.
The final phases of testing include performance testing, functional testing, security and compliance testing, device testing and control testing."
Even with automated testing, why should you carry out manual testing?
The interviewer may ask this question to find out if you have experience with automated testing and manual testing and if you understand why both are necessary.
Example: "While automated testing offers a lot of conveniences, it is not without errors. You will get better results if you carry out usability and UX testing manually. You will also be able to make quick changes to meet the dynamic demands of an agile environment."
Which major networks would you consider during mobile application testing?
Testing a mobile application on different networks is necessary to see how it performs on each. You can explain this to the interviewer and list the networks on which you will test it.
Example: "I would consider testing the mobile application on 2G, 3G, 4G and WiFi networks. That way, it will be possible to find out how the application performs on networks of different speeds. For instance, the 2G network is slower compared to the others, and it is a good idea to make sure that the application performs well on that as well."
What are some debugging tools that you would use for mobile apps?
The interviewer may ask this question to find out if you are up-to-date with the latest automated debugging processes for identifying and removing errors from Android and iOS mobile applications.
Example: "For debugging mobile applications, I use debugging tools that have a mobile-specific framework and can assess source code and identify errors. They can also analyse mobile application coding languages and can debug native, hybrid and cross-platform applications. I have used Bugsee, Instabug, Xcode, Chrome Mobile, Flipboard FLEX and Gennymotion for debugging mobile applications."
Explain the pros and cons of Appium.
The interviewer may ask this question to assess how well you know the Appium open-source test automation framework.
Example: "I have used Appium to test Android, iOS and Windows applications. Some of its pros are that it does not depend on mobile devices, you can use it for automating mobile application from all programming languages and test frameworks, and you can automate native, hybrid and mobile web applications. Additionally, you can carry out cross-platform testing, you can contribute to it as it is open source, and you don't need to recompile an app. You can do automation testing on physical devices as well as for simulators or emulators, and you can get support for JSON wire protocol.
Its cons are that it may be slow in test execution, and there may be stability issues. You need to be familiar with Appium object spy and object structure. It has limited support for hybrid app testing. You cannot test for Android versions lower than 4.2."
Do you need a server machine to run tests on Appium?
Interviewers often ask this question to gauge the candidate's knowledge of testing mobile applications on Appium.
Example: "No, it is not necessary to have a server machine. You can run Appium on a test server and connect a test machine to that and automate the entire testing process."
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