Software Testing Concepts Quiz

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Questions and Answers

Which of the following is a non-technical skill essential for a software tester?

Analytical skills (correct)

Hands-on experience with a defect tracking tool

Knowledge of automation tools

Basic knowledge of SQL

What is the main purpose of the Software Development Life Cycle (SDLC)?

To ensure software quality and meet customer expectations (correct)

To reduce the time required for software development

To design software without testing

To develop software in a non-structured manner

In software testing, what does executing a program under negative conditions mean?

Collecting data during normal program operation

Running the program to see if it fails under expected circumstances

Checking system response to invalid input or erroneous situations (correct)

Testing for performance under optimal conditions

Which stage in the software testing process is likely to identify fundamental design flaws?

Design Phase Signup and view all the answers

Which tool is typically used to track defects in software?

Bug Tracking Tool Signup and view all the answers

What is NOT considered a source of problems in software development?

Excessive user feedback Signup and view all the answers

Which skill is required for a software tester to handle time effectively?

Time Management & Organization Skills Signup and view all the answers

What is the goal of executing software testing?

To identify correctness, completeness, and quality Signup and view all the answers

What is the primary focus of functional testing?

To ensure the program's functions work correctly Signup and view all the answers

What type of error does black-box testing help identify when features are not functioning properly?

Incorrect or Missing Functions Signup and view all the answers

Which type of testing is typically conducted in the later stages to ensure everything works as intended?

Black-box Testing Signup and view all the answers

What does verification in the context of software testing ensure?

That the software functions as required Signup and view all the answers

Which technique specifically tests the boundaries of input values to find potential errors?

Boundary Value Analysis Signup and view all the answers

What is the main difference between verification and validation in software testing?

Verification checks if the software functions as required, while validation checks if it meets user needs. Signup and view all the answers

Which of the following would be considered an interface error in software testing?

An external database cannot be accessed Signup and view all the answers

What distinguishes white-box testing from other testing methods?

It uses knowledge of the code's structure to create tests Signup and view all the answers

What is the primary focus of integration testing?

Examining how classes work together in specific scenarios Signup and view all the answers

What does the variable 'E' represent in the project estimation equation?

Estimated project effort Signup and view all the answers

Which method is primarily used for validation in software testing?

Black-box testing Signup and view all the answers

How does encapsulation complicate testing in object-oriented programming?

It hides internal data, requiring public method testing. Signup and view all the answers

How is the number of support classes 's' estimated in project estimation?

By estimating it as m times the number of key classes Signup and view all the answers

When testing for inheritance in object-oriented systems, what should be verified?

Child classes correctly extend or override parent classes Signup and view all the answers

What does Weighted Methods per Class (WMC) measure?

Complexity of a class Signup and view all the answers

Which of the following is NOT a quality attribute measured in performance testing?

Database integrity Signup and view all the answers

What scenario addresses polymorphism testing?

Making sure an object behaves according to its actual type Signup and view all the answers

What aspect does the Depth of Inheritance Tree (DIT) measure?

Number of inheritance levels in a class hierarchy Signup and view all the answers

What is NOT a conventional method of test case design?

Interface testing Signup and view all the answers

In a library system, which feature of an object-oriented class is validated when ensuring a PremiumMember has a higher borrowing limit?

Inheritance from the Member class Signup and view all the answers

What is the primary purpose of performance testing?

To ensure the application works correctly under various conditions Signup and view all the answers

Which parameter is used to identify performance bottlenecks?

Parts of the app that slow down performance Signup and view all the answers

What aspect of testing should be emphasized when validating class interactions?

Integration of multiple classes in realistic scenarios Signup and view all the answers

In the provided table, which interface type has the highest multiplier 'm'?

Complex GUI Signup and view all the answers

Why is testing harder with inheritance and polymorphism?

Because behavior may vary based on the specific subclass. Signup and view all the answers

What must be tested separately for both Member and PremiumMember classes?

The borrowLimit() method. Signup and view all the answers

What does class testing in object-oriented testing focus on?

Ensuring the object's state behaves as expected. Signup and view all the answers

Which type of testing evaluates how multiple classes interact during a specific scenario?

Integration Testing Signup and view all the answers

What is the focus of thread-based testing in object-oriented testing?

How a sequence of classes responds to a single event or input. Signup and view all the answers

In use-based testing, which scenario is primarily assessed?

The interaction of classes needed for one specific use case. Signup and view all the answers

Which of the following is not a type of testing mentioned for object-oriented systems?

Functional Testing Signup and view all the answers

What should be verified after a Member requests a Book in the borrowing process?

The Loan class records the transaction and book status. Signup and view all the answers

What is an important characteristic of a test case?

It needs to include pre-requisites and expected results. Signup and view all the answers

Which of the following statements about testing strategy characteristics is correct?

Technical reviews can help eliminate errors before testing. Signup and view all the answers

What does it mean for testing to begin 'in the small'?

Early testing focuses on single components or small groups. Signup and view all the answers

Which attribute is NOT typically included in a test case?

Target Market Signup and view all the answers

When executing a test case, what do testers compare to determine if it has passed or failed?

Expected results against actual results. Signup and view all the answers

Which of the following best describes the role of a testing strategy in software component testing?

It helps ensure a systematic approach from components to full system integration. Signup and view all the answers

What do technical reviews primarily aim to achieve before the actual testing phase?

Identify and eliminate potential errors. Signup and view all the answers

Why is it necessary for test cases to be traceable or mapped with requirements?

To verify that all aspects of user requirements are covered. Signup and view all the answers

Study Notes

Introduction to Software Testing

Software testing is a process used to verify a computer program's correctness, completeness, and quality by manual or automated means.
It ensures the program/application meets specific requirements and performs as expected.
Skills required include analytical thinking, communication, time management, organization, and passion.
Technical skills needed are database knowledge (SQL), Linux commands, testing tools (management and defect tracking), and automation tools.
SDLC (Software Development Life Cycle) is a process, including stages of testing, used to produce high-quality software.

Software Testing Objectives

Find defects.
Identify problems quickly.
Evaluate quality risks.
Assess project risks.
Advise on perceived quality.
Conform to specifications (requirements, design, and claims)

Software Testing Terminology

Error: A human action resulting in an incorrect output.
Bug: The presence of errors.
Fault: Resultant state of software from errors.
Failure: When the software's output deviates from the expected one.
Defect: When the software does not meet specifications or performs undesirably.

Testing Team Roles

Program Manager: Plans and makes decisions.
QA (Quality Assurance) Lead: Coaches and improves testing methods for the team.
Test Analyst Lead: Creates and manages test plans.
Test Engineer: Carries out hands-on testing and reports errors.

Testing in Software Lifecycle

Testing should begin early in the SDLC, typically during the requirements analysis stage.
Different testing types are used at different points in the cycle (e.g., Unit testing, Integration testing).
Testing should use verification and validation methods.

Different Testing Types

Unit testing: Testing individual parts (units) of the software.
Integration testing: Testing how different units work together.
System testing: Testing the entire system's functionality.
Acceptance testing: Real users test the software to ensure it meets their needs.
Alpha testing: Users unaware of the software are testing it under controlled conditions.
Beta testing: Users unaware of the software are testing it under uncontrolled conditions.
Load testing: Simulates many users simultaneously to see how the system handles it.
Stress testing: Checks if the software performs under heavy loads or extreme conditions.
Static testing: (No code execution): The documentation and design documents are evaluated to find issues.
Dynamic testing: Involves running the code to check for problems.

Test Management and Control

Estimation is a crucial activity in test management.
Includes planning, scheduling, and resource allocation for testing tasks.
Estimation techniques include functional points and three-point estimation.
A test plan is a document that outlines the testing strategy, objectives, schedule etc, essential for testing activities.

Object-Oriented Testing

Includes testing individual components and integrating them into a system.
Different testing techniques tailored to object-oriented systems (e.g., state-based, attribute-based).
Key elements include class testing and integration testing.
Focuses on how classes interact and their behaviour.

Software Maintenance and Evolution

Software maintenance involves modifications made after delivery to correct or improve software.
Software evolution focuses on continuous improvements and adaptation.
Lehman’s Laws explain how software changes over time, including growth, complexity, and quality issues.
Different maintenance types including corrective and adaptive maintenance are also discussed.
Tools and techniques like program comprehension, reverse engineering, and dependency graphs for maintenance are also discussed.

Software Quality Assurance (SQA)

Quality assurance is systematic process of preventing errors/defects in the software.
Activities, such as quality management and compliance with standards/metrics etc are discussed.
Quality control deals with detecting defects.
Includes techniques like inspections, reviews, and testing to ensure quality.
Formal technical reviews (FTR) use formal set of regulations to detect defects.

Performance Testing

Measures the speed, stability, and reliability of a system under different conditions.
Different types include load testing and stress testing.
Key metrics (response times, errors, resource usage) are used to assess the software’s performance.
Tools and techniques like jmeter, LoadRunner, and LoadNinja for performance testing are also discussed.

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Description

Test your knowledge on essential software testing concepts with this quiz. It covers non-technical skills, the Software Development Life Cycle (SDLC), and various testing techniques. Whether you're a beginner or looking to refresh your skills, this quiz has something for you!