10+ BCG Interview Questions and Answers

Error, bug, and issue are terms used in software testing to describe different types of problems.

• Error: A mistake made by a human that results in a fault in the software.

• Bug: A fault in the software that causes it to behave incorrectly or unexpectedly.

• Issue: A problem reported by a user or identified during testing that needs to be addressed.

• Example: Typing 'pritn' instead of 'print' in the code is an error. If this mistake causes the program to crash, it is a bug. If a user ...read more

A test pass is a collection of test runs, while a test run is a single execution of a test case.

• A test pass includes multiple test runs, which are iterations of executing test cases.

• A test run is a single instance of executing a test case to verify its functionality.

• Test passes are used to group and organize test runs for a specific testing phase or cycle.

• Test runs are typically recorded and documented to track the results of individual test case executions.

A test suite is a collection of test cases, while a test case is a specific set of conditions and inputs to test a particular aspect of the software.

• Test suite is a collection of test cases that are grouped together based on a common goal or functionality.

• Test case is a specific set of conditions, inputs, and expected results to test a particular aspect of the software.

• Test suite helps in organizing and managing test cases efficiently.

• Test case is executed to verify a specifi...read more

Regression testing ensures that new code changes do not adversely affect existing functionality, while sanity testing quickly checks if the software is ready for further testing.

• Regression testing is performed after code changes to ensure that existing functionality is not affected.

• Sanity testing is a quick test to check if the software is ready for further testing.

• Regression testing is comprehensive and covers all areas of the application.

• Sanity testing is a subset of regres...read more

Software development life cycle is a process used to design, develop, and test software applications.

• It consists of phases such as planning, analysis, design, implementation, testing, and maintenance.

• Each phase has specific goals and deliverables to ensure the quality and success of the software.

• Examples of SDLC models include Waterfall, Agile, and DevOps.

The software testing life cycle is a process that defines the various stages involved in testing a software application.

• It includes planning, designing test cases, executing tests, reporting bugs, and retesting.

• The stages may vary depending on the development methodology used, such as Agile or Waterfall.

• Examples of testing stages include unit testing, integration testing, system testing, and acceptance testing.

Bug life cycle refers to the stages a bug goes through from identification to resolution.

• Bug is identified by QA team or users

• Bug is reported in a bug tracking system

• Bug is assigned to a developer for fixing

• Developer fixes the bug

• Bug is retested by QA team

• If bug is fixed, it is closed. If not, it is reopened

• Bug may go through multiple cycles before being resolved

Adhoc testing is informal testing without any predefined test cases or plans.

• Adhoc testing is performed randomly without any specific guidelines or documentation.

• It is usually done to explore the application and find defects that may not be covered in regular testing.

• Adhoc testing is not structured and is often performed by experienced testers who can think outside the box.

• Examples of adhoc testing include randomly clicking on buttons, entering unexpected data, and testing di...read more

Regression testing is the process of retesting a software application to ensure that new code changes have not adversely affected existing functionality.

• Repeating test cases that have been previously executed to verify that the unchanged parts of the software still perform as expected

• Ensuring that new code changes have not introduced any new bugs or issues

• Automating regression tests to save time and effort in retesting

• Commonly used in Agile development to maintain the quality...read more

Functional testing is a type of software testing that focuses on verifying that the software functions correctly according to the specified requirements.

• Tests the functionality of the software

• Verifies that the software behaves as expected

• Does not concern itself with the internal structure of the software

• Examples include testing user interfaces, APIs, databases, and integrations