Manual Testing Interview Questions & Answers for 2025

Here, we explain Software Testing Interview Questions. As usual, the emphasis is on Real Life Based Manual Testing Interview Questions And Answers.

What is Software Testing?

Software testing is an evaluation process that helps through verification of a software application or system to ensure it functions as expected. Its goal is to identify bugs, errors, or issues which can be rectified before deployment or deliverable to the end users. In simple terms, all efforts are put in place to ascertain quality, reliability and performance.

ome major types of software testing includes;

Manual Testing: Test case execution is done by people without the aid of automation tools.

Automated Testing: Execution of test cases is done through automation using special software tools.

Functional Testing: Verification of whether the software does what it is supposed to do is done.

Performance Testing: Evaluation of the software is done under specific conditions such as heavy load or limited resources.

Security Testing: Evaluation of whether the software is secure against potential threats.

User Acceptance Testing (UAT): Verification of whether the end user requirements have been met and fulfilled by the software.

What is Exploratory Testing?

Exploratory testing is a pragmatic style of testing where there is little planning and maximum test execution by the testers. In this style of testing, there is a creation of a test charter which is an outline of the scope in a single one to two hour time-boxed testing effort, objectives and possible strategies to be used. Test design and test execution are conducted in parallel at the same time, usually, without any form of test conditions documenting, test cases or scripts. Other formal testing techniques can also be applied. As an example, a tester may decide to use boundary value analysis, but will only focus her thought processes and verification on the critical boundaries. Some notes will be written during the exploratory-testing session so that a report can be produced afterward.

What is “use case testing”?

Use case testing is a functional testing technique that attempts to validate the functionality of the system by evaluating particular use cases. A use case entails a particular context in which a user interacts with the system for a particular purpose. This testing type confirms that the system operates appropriately in relation to actual situations or contexts.

Significant components of use case testing include:

Focus on the User: It pays attention on how users operate the system instead of verifying each component in isolation.

Complete Transactions: It includes entire transactions from initiation to completion, success scenarios to failure scenarios.

Finding Gaps: It aids in finding gaps that other testing approaches might not find such as lack of certain functionality and anomalous results.

In the context of a login system, a use case would include a user inputting their login ID and password. The test will validate the success scenario (successful unimpeded user access after employee authentication) as well as the failure scenarios (incorrect entry of password, restricted attempts over a set number with unassistable guidance, etc.).

What is white box testing and list the types of white box testing?

Constructing test cases using white box testing methods require an internal examination of the code’s structure, which includes branch coverage, path coverage, condition coverage, and others. It is also referred to as Code-Based testing or Structural testing. Distinct types of white box testing include:

Decision Coverage

Statement Coverage

In white box testing, what do you verify?

The following checks are done while white box testing:

Check for security vulnerabilities in the application.
Check incomplete or unbounded paths in the code.
Check the flow of control against the document specification.
Checker all the expected results.
Check all the loops to verify that all functionalities of the application have been implemented.
Check the code with the policy of testing all the lines of the program which is called 100% coverage.

What is black box testing? What are the different black box testing techniques?

Black box testing is a software testing method that examines the functionality of software without having to look at the program’s code structure. This type of testing is primarily performed to evaluate an application’s functionality. The various techniques of black box testing are:

Equivalence Partitioning
Boundary Value Analysis
Cause-Effect Graphing

What are the different test levels?

The various levels of testing include:

Unit/Component/Program/Module Testing

Integration Testing

System Testing

Acceptance Testing

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