Software Testing MCQ Quiz For Beginners

Equivalence class partitioning is a black-box method used in software testing. It involves dividing the input data into groups or classes that are expected to exhibit similar behavior. This method helps in reducing the number of test cases required while ensuring that all possible scenarios are covered. By focusing on the input values rather than the internal workings of the system, equivalence class partitioning allows testers to identify representative test cases that can effectively validate the functionality of the software.

CMMi (Capability Maturity Model Integration) has five maturity levels that indicate the process capability. These levels are: Initial, Managed, Defined, Quantitatively Managed, and Optimizing. Each level represents a different stage of process improvement and organizational maturity. The model helps organizations assess and improve their processes, with the ultimate goal of achieving higher levels of maturity and capability.

Stress testing is a type of high-order test that subjects the system to large loads over a short period of time. This test is conducted to evaluate the system's performance under extreme conditions and to determine its stability and reliability. By putting the system under excessive stress, such as heavy traffic or high data volumes, stress testing helps identify any weaknesses or bottlenecks that may cause the system to fail or perform poorly. This type of testing is crucial to ensure that the system can handle unexpected spikes in usage and maintain its functionality and performance.

Error guessing is not considered a static testing technique because it relies on the tester's intuition and experience to identify potential errors or defects in the software. It does not involve any formal or structured process like walkthroughs or inspections, which are considered static testing techniques. Error guessing is more of an informal and ad-hoc approach to testing, where testers try to anticipate and uncover errors based on their knowledge and past experiences.

Capture and playback tools are recommended for the automation of regression tests. These tools allow testers to record user actions and create test scripts, which can then be played back to repeat the same actions. This helps in automating the repetitive steps involved in regression testing, saving time and effort. Debugging tools are used for identifying and fixing software defects, while static analysis tools are used for analyzing code quality. None of these tools specifically cater to the automation of regression tests, making capture and playback the most suitable choice.

White-box testing is a type of testing that is performed early in the software testing process. It involves examining the internal structure and workings of the software, including the code, to ensure that it functions correctly. This type of testing is typically done by developers or testers who have access to the source code. By performing white-box testing early on, any issues or bugs in the code can be identified and fixed before further testing is conducted. Black-box testing, on the other hand, focuses on the external behavior of the software without looking at the internal code. Grey-box testing is a combination of both white-box and black-box testing.

Big bang testing is a non-incremental test because it involves testing the entire system as a whole, without breaking it down into smaller components or modules. In this approach, all the components are integrated at once and tested together, which can be more time-consuming and difficult to identify and fix specific issues. Unlike top-down and bottom-up testing, which involve testing the system incrementally by gradually adding and testing components, big bang testing does not follow this incremental approach. Stab testing is not a commonly known testing technique, so it is not relevant to the question.

The relationship between Quality Assurance (QA) and software testing is that testing is part of the QA process. QA encompasses all activities and processes that ensure the software meets the desired quality standards, while testing specifically refers to the process of identifying defects or errors in the software. Testing is a crucial component of the overall QA process, as it helps identify and rectify any issues in the software before it is released to the end-users. Therefore, testing is a subset of the broader QA process.

Beta testing involves installing a system at a large number of user sites. This testing technique allows real users to test the system in their own environments and provide feedback on its performance, usability, and any issues they encounter. It helps identify and fix any remaining bugs or usability issues before the system is released to the general public.

Philip Crosby is the one who mentions that "Quality is free." He is known for his work in the field of quality management and is credited with popularizing the concept of "zero defects." Crosby believed that preventing defects and errors in the first place is more cost-effective than detecting and fixing them later. He emphasized the importance of a proactive approach to quality management, focusing on prevention rather than inspection. According to Crosby, when organizations prioritize and invest in quality, they can achieve significant cost savings and improved customer satisfaction.

A sequence diagram is useful for black-box testing because it shows the interactions between objects in a system over time. It illustrates the order in which messages are sent between objects and the responses that are expected. This allows testers to understand the flow of the system and identify any potential issues or errors in the communication between objects. Class diagrams, object diagrams, and end-to-end flow diagrams do not provide the same level of detail and sequencing of interactions as a sequence diagram, making them less suitable for black-box testing.

Beta testing is a type of testing in which customers or end-users of a software product test the product in a real-world environment, typically at their own site. This allows the customers to provide feedback on the software's usability, functionality, and overall performance. Beta testing is beneficial for testing bespoke software because it allows the customers to identify any issues or bugs that may arise in their specific environment or use case. It is not performed by an independent test team, as it involves real users testing the software in their own settings.

The developer who wrote the code is the least reliable person to test a program because they are already familiar with the code and may overlook certain errors or assume that it works correctly. They may also have biases or preconceived notions about the functionality of the program, which can affect their ability to objectively test it. It is important to have a fresh set of eyes from someone who is not involved in the development process to ensure thorough and unbiased testing.

Detective is the correct answer because quality control in this context refers to the process of identifying and uncovering defects or errors in products or services. It involves inspecting, testing, and analyzing the output to find any discrepancies or issues. This is done to ensure that the final product meets the desired quality standards and to identify any potential problems that may arise. Therefore, the term "detective" accurately describes the role of quality control in identifying and detecting defects.

Statement coverage is a code testing technique that aims to ensure that every statement in the code is executed at least once during testing. It involves creating test cases that cover all the statements in the code. However, statement coverage does not check for missing statements. This means that even if all the statements that are present in the code are executed during testing, there may still be some statements that are missing and not covered by the test cases. Therefore, the correct answer is "Missing statements".