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Manual Testing Interview Questions and Answers

1
What is baseline testing?

Baseline testing is the process of running a set of tests to capture performance information. Baseline testing use the information collected to made the changes in the application to improve performance and capabilities of the application. Baseline compares present performance of application with its own previous performance.

2
What makes a good test engineer?

A good test engineer has a 'test to break' attitude, an ability to take the point of view of the customer, a strong desire for quality, and an attention to detail. Tact and diplomacy are useful in maintaining a cooperative relationship with developers, and an ability to communicate with both technical (developers) and non-technical (customers, management) people is useful. Previous software development experience can be helpful as it provides a deeper understanding of the software development process, gives the tester an appreciation for the developers' point of view, and reduce the learning curve in automated test tool programming. Judgement skills are needed to assess high-risk areas of an application on which to focus testing efforts when time is limited.

3
How would you test a toaster?

Another staple of QA testing interviews, this question is designed to see how you approach a problem. The interviewer might replace toaster with any device – blender, microwave oven, food processor, etc. The answer should follow the same process with only a change in the relevant details.

A sample answer would consider the following:

  • External features (i.e. the UI) of the device such as color, design, power cable, odor, etc.
  • External indicators such as LED/power light, switch condition, etc.
  • Condition of equipment.
  • Functional aspects of the device. In the case of the toaster, this should be a long, methodical process that will involve running an empty toaster, checking for quality of toast at different settings, checking for performance after significant load, checking with different types of bread at variable voltage, checking for performance when toaster is run on battery backup, etc.
4
What is Agile Testing?

Agile Testing means to quickly validation of the client requirements and make the application of good quality user interface. When the build is released to the testing team, testing of the application is started to find the bugs. As a Tester, we need to focus on the customer or end user requirements. We put the efforts to deliver the quality product in spite of short time frame which will further help in reducing the cost of development and test feedbacks will be implemented in the code which will avoid the defects coming from the end user.

5
How does a client/server environment affect testing?

Client/server applications can be quite complex due to the multiple dependencies among clients, data communications, hardware, and servers. Thus testing requirements can be extensive. When time is limited (as it usually is) the focus should be on integration and system testing. Additionally, load/stress/performance testing may be useful in determining client/server application limitations and capabilities. There are commercial tools to assist with such testing. (See the 'Tools' section for web resources with listings that include these kinds of test tools.)

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