Performance Testing Interview Questions- With Simple Answers

Performance Testing Interview Questions

For people who have to appear for Performance Testing Interviews to secure their job, it doesn’t matter if they are experienced or inexperienced. The interview questions are challenging, and you need to study well to perform your best. Here are some of the Performance Testing Interview Questions.

Since performance testing is a crucial part of the firm’s side, they need to ensure the best results. So you must perform well on the interview to be a reliable employee to the firm. There is more competition than you would imagine in the field. But with ample study, you can outshine your fellow candidates.

Performance Testing Interview Questions with Answers

Performance Testing Interview Questions are usually to test how knowledgeable and aware you are of your craft. And it is essential to understand all the concepts and be very familiar with them. Also, just knowing is not enough, you must also be able to answer skillfully.

Make sure you frame your sentences and be precise while giving your answer. Try to make your answer as concise as you can without harming the quality of the answer. The below answers are the facts and info on various aspects. They are a great example of how you should frame your answers.

Though the number of questions is too much to put all together, there are some main questions you can prepare for. Ensure that you use these answers as a reference and try to frame your answers in your way. We have mixed both common and some detailed questions together to keep the list diverse:

  1. Explain what performance testing means.

Performance testing refers to the tests performed on software, hardware, and more to test its overall performance. It’s a preliminary testing procedure usually performed before the software or hardware gets sold/ opened to the public.

The testing methods help determine whether the hardware/software can handle all kinds of pressure and still work well in that condition. It consequently identifies any potential error so that they can get corrected before the release.

  1. Why is there a need for performing testing on software?

Performance testing is essential for any software, hardware, or more because it helps determine its performance. If the process is absent, then the software or hardware will face issues after the release. 

The preliminary testing points out any errors and tests the efficiency of the system even under immense pressure. So such performance tests are essential for any software or hardware to ensure that the user experience is smooth and positive. 

  1. Suggest any three tools ideal for performance testing.

Here are three tools we can use for performance testing:

  • Loadrunner- Load Runner is arguably one of the best performance testing tools for the web. It can efficiently performance test multiple applications and provide accurate and helpful results.
  • Load Ninja– One of the quickest ways to test your software or hardware’s performance, Load Ninja is an ideal tool. The tool utilizes the browsers for more detailed and practical results.
  • JMeter– Another web-centric performance testing tool, JMeter is another convenient tool. It produces equally accurate and high-quality results with a lesser effort from your side.
  1. What are the problems that users might face without performance testing?

If performance testing is absent, the user might face multiple problems like:

  • Slowly loading pages 
  • Slower response on the pages
  • Minor coding mistakes or bottlenecking
  1. Name and explain the types of performance testing.

There are mainly five different types of performance testing, which are as follows:

  1. Load Testing– It is the most frequent type which mainly involves checking the performance of software or hardware with the anticipated load. With the specific load already expected by the developer, the test explores if there might be any issues with dealing with such loads.
  1. Stress Testing– In Stress testing, the software or hardware gets tested by putting more than the anticipated load. It is to ensure that even when there is a higher load, it will work well. If there are any bottlenecks in the way, they can get identified and corrected.
  1. Volume Testing– As the name suggests; the Volume Testing procedure puts excessive data onto the software or hardware. It is not related to the user load and solely focuses on data processing. The behavior and response of the system get recorded, and any errors get corrected.
  1. Endurance Testing– Endurance testing mainly involves putting anticipated user load on the software or hardware for long periods. With the anticipated load, the software may perform well initially. But it also needs to get tested for long periods.
  1. Spike Testing– Spike testing is similar to stress testing since the number of users is in excess. But spike testing makes the increase sudden and not gradual. The sudden spike in users that exceeds the anticipated levels helps identify further issues with the software or hardware.
  1. How can you select the perfect tool for performance testing?

You can select the ideal performance testing tool for the procedure by taking care of certain aspects. Firstly, you need to decide the budget for the performance testing tool and find a performance testing tool that fits the budget. 

Secondly, you must go for a tool that is the most efficient and commended by users. Additionally, you should check if the performance testing tool you desire is compatible with your system or not. 

And you must finally determine what the capacity of the tool is. It is essential to determine if the performance testing tool can perform the required tests and maintain the required test environment.

  1. Why is manual testing not as popular?

Manual testing may have been efficient back when technology wasn’t as developed, but now it is not as efficient. The manual performance testing method involves actual testers testing the software or hardware in real-time.

It is not cost-efficient and also takes a lot longer than an automatic one would. Plus, the elongated testing processes would become impossible for the testers. And the resulting recording and accurate data won’t get collected either.

It is much more convenient to use a tool that does not involve real-time users. Such a method can be performed on a larger scale without utilizing too much money and time.

  1. How do you conduct performance testing on software?

Performance testing involves multiple steps and is a long process. The first step is to identify the work and environment and then decide how to utilize the given time and funds accordingly. Once that is done, the next step is to opt for the accurate tools and make a plan for the testing procedure.

Once a rough plan gets made, the next step is to consider variables and plan out in detail. Then we can prepare the test environment and conduct the test using the necessary tools and available time. Once the test is over, we can share the results in a simplified manner with the firm.

  1. Explain what is the throughput of software, hardware, etc.

The throughput of any software or hardware is how much data, reports, or more get processed by it in a certain time. The time can vary depending on the application itself. Simply put, it means the number of requests or similar outputs per period.

The data collected through testing can provide such reports. It defines the capacity or ability of the software or hardware. It is usually expressed as ‘number of reports processed per month’.

  1. What are the frequent errors that could occur during performance testing?

Some errors made during the performance testing process are as follows:

  • Running the test for shorter periods
  • Improper planning or testing strategies
  • Inaccurate understanding of concurrent users.
  • Skipping onto multi-user tests
  • Unregulated network bandwidth

Conclusion

All the people who want to work as performance testers at a firm must compete against multiple contenders for the post. Though the interview is tricky and maybe slightly difficult, enough preparation will give way to good results.

You must stock up on anything and everything you know about performance testing to give out perfect answers. But with enough research and effort going into preparations, the employers will be able to see your skills and appreciate them.

Frequently Asked Questions

  1. Are Performance Testing Interview Questions too difficult?

Yes, since the job itself is quite crucial in deciding the quality of any software, hardware, and more, the questions are technical and sometimes difficult. But proper preparation can help you answer them with ease.

  1. How should I prepare for my Performance Testing Interview?

The first and most essential step is to polish your knowledge on performance testing. You need to put in lots of time and effort to ensure you are prepared to answer almost any interview question.

  1. What is the best way to answer Performance Testing Interview Questions?

The best way to answer these interview questions is to be concise yet accurate. The shorter you make your explanation while ensuring that the definition is just as clear, the better your answer will be.

Performance Testing Interview Questions- With Simple Answers

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