100+ Dell Interview Questions and Answers

Normalization is the process of organizing data in a database to reduce redundancy and improve data integrity.

• Normalization involves breaking down data into smaller, more manageable parts.

• It helps in reducing data redundancy by storing data in a structured way.

• Normalization ensures data integrity by avoiding anomalies like insertion, update, and deletion anomalies.

• There are different normal forms like 1NF, 2NF, 3NF, BCNF, etc., each with specific rules to follow.

• For example, ...read more

Use external sorting with merge sort algorithm to efficiently sort words in large file

• Divide the large file into smaller chunks that can fit into memory

• Sort each chunk individually using a sorting algorithm like merge sort

• Merge the sorted chunks back together to get the final sorted result

• Example: Divide a file of words into chunks of 1000 words each, sort each chunk using merge sort, then merge the sorted chunks back together

The project life cycle consists of initiation, planning, execution, monitoring and controlling, and closing phases.

• Initiation: Define the project, set goals, and identify stakeholders.

• Planning: Develop a project plan, schedule, and budget.

• Execution: Implement the project plan and deliver the project deliverables.

• Monitoring and Controlling: Track progress, manage changes, and ensure project stays on track.

• Closing: Finalize all activities, hand over deliverables, and close the ...read more

BIOS stands for Basic Input/Output System. It is a firmware that initializes hardware components during the boot process.

• BIOS is a program stored on a chip on the computer's motherboard.

• It performs hardware initialization during the booting process.

• BIOS provides the basic instructions for the computer to operate before the operating system takes over.

• It also manages data flow between the computer's operating system and attached devices like hard drives, keyboard, and monitor.

Yes, I am comfortable with a Hybrid work Model.

• I am comfortable with a mix of remote and in-office work

• I have experience managing my time effectively in both settings

• I am adaptable to changing work environments

• I understand the benefits of a Hybrid work Model, such as increased flexibility and work-life balance

Polymorphism is the ability of a function or method to behave differently based on the object it is acting upon.

• Polymorphism allows objects of different classes to be treated as objects of a common superclass.

• There are two types of polymorphism: compile-time (method overloading) and runtime (method overriding).

• Example: Inheritance allows a child class to override a method from its parent class, exhibiting polymorphic behavior.

Program to read specific exceptions from log file

• Open the log file and read line by line

• Search for specific keywords related to exceptions

• Store the exceptions in a data structure for further processing

I have experience in controlling activities in S4 HANA, such as cost center accounting, profit center accounting, and internal orders.

• Implemented cost center accounting to track costs and allocate them to specific cost centers

• Utilized profit center accounting to analyze profitability at the profit center level

• Managed internal orders for tracking costs and revenues for specific projects or events

Developed a solution for optimizing a complex algorithm for a client in the finance industry

• Client had a large dataset that needed to be processed quickly

• Implemented parallel processing to speed up the algorithm

• Optimized the code to reduce memory usage

• Collaborated with the client to fine-tune the algorithm for their specific needs

Find the nearest word in a matrix of strings

• Create a matrix of strings

• Calculate the distance between the input word and each word in the matrix

• Return the word in the matrix with the smallest distance to the input word

String is immutable while StringBuffer is mutable.

• StringBuffer is faster for concatenation operations.

• StringBuffer has methods to modify the string.

• StringBuffer is thread-safe while String is not.

• StringBuffer has a larger memory footprint than String.

Predicate is a functional interface that takes an argument and returns a boolean value. Supplier is a functional interface that takes no argument and returns a value.

• Predicate is used for filtering or testing a condition on an object.

• Supplier is used for providing a value or generating a value.

• Predicate takes an argument and returns a boolean value based on the condition.

• Supplier takes no argument and returns a value.

• Example of Predicate: Predicate isNullOrEmpty = s -> s == n...read more

Quickly working process is efficient and saves time.

• Efficient processes are designed to minimize waste and maximize output.

• Quickly working processes can be achieved through automation and optimization.

• Examples of quickly working processes include just-in-time manufacturing and agile project management.

• Regular evaluation and improvement of processes is necessary to maintain efficiency.

Connected and unconnected are two types of transformations in Informatica ETL.

• Connected transformation receives input directly from the previous transformation in the pipeline.

• Unconnected transformation does not receive input directly from the previous transformation and is called using a function.

• Connected transformation can be used in both active and passive pipelines.

• Unconnected transformation can only be used in active pipelines.

• Examples of connected transformations inclu...read more

Find the second largest element in an array

• Sort the array in descending order and return the second element

• Iterate through the array and keep track of the largest and second largest elements

• Handle edge cases like duplicates and empty arrays

Improving process performance involves identifying bottlenecks and inefficiencies, implementing automation, setting clear goals, and continuous monitoring.

• Identify bottlenecks and inefficiencies in the process

• Implement automation to streamline tasks and reduce manual errors

• Set clear goals and key performance indicators (KPIs) to track progress

• Continuously monitor and analyze process performance to make necessary adjustments

• Train employees on best practices and provide regular...read more

AC stands for Alternating Current.

• AC stands for Alternating Current, which is an electric current that reverses direction periodically.

• AC is commonly used in household appliances, power distribution, and electric motors.

• Examples of AC sources include power outlets and generators.

• AC is different from DC (Direct Current) which flows in only one direction.

Solid principle is a set of five design principles for creating maintainable software

• Single Responsibility Principle - a class should have only one reason to change

• Open/Closed Principle - classes should be open for extension but closed for modification

• Liskov Substitution Principle - objects of a superclass should be replaceable with objects of its subclasses without affecting the program's correctness

• Interface Segregation Principle - clients should not be forced to depend on ...read more

My weaknesses include overthinking and being too self-critical.

• Overthinking can lead to analysis paralysis and slow down decision-making.

• Being too self-critical can lead to low self-esteem and hinder progress.

• I am actively working on improving these weaknesses through mindfulness and self-reflection.

An inactive relationship in Power BI is a relationship that is not being used in any visualizations or calculations.

• Inactive relationships can occur when a relationship is created but not utilized in any measures or visuals.

• These relationships do not impact the data model or query performance, but can clutter the model view.

• To remove an inactive relationship, you can delete it from the relationship view in Power BI.

• Inactive relationships are indicated by a dashed line in the ...read more

The question is unclear and incomplete. Please provide more context.

• Please clarify the question and provide more information.

• Typass is not a recognized term or keyword in operations.

• Function keys vary depending on the system and software being used.

• Please provide more context or a specific scenario for a more accurate answer.

Self join is used to join a table with itself to compare rows within the same table.

• Self join is useful when we need to compare rows within the same table.

• It is commonly used to find relationships between data in the same table.

• For example, we can use self join to find all employees who have the same manager.

• Another example is to find all pairs of customers who have the same billing address.

Header files in C language are used to declare functions, variables, and constants that are defined in other source files.

• Header files are included at the beginning of a C program using the #include directive.

• They help in organizing code by separating declarations from the actual implementation.

• Common header files in C include , , and .

• Header files can also be created by the user to declare custom functions and variables.

• Using header files can help in reducing code duplicatio...read more

Direct Current

• Full form of DC is Direct Current

• DC is a type of electrical current that flows in one direction

• DC is commonly used in batteries and electronic devices

The key in desktop depends on the operating system being used.

• In Windows, the key is usually the Windows key located between Ctrl and Alt on the left side of the keyboard.

• In Mac, the key is the Command key located next to the space bar.

• In Linux, the key can vary depending on the distribution and desktop environment being used.

Find the smallest subset of strings in an array

• Iterate through the array and compare the length of each string to find the smallest subset

• Use a variable to keep track of the smallest subset found so far

• Return the smallest subset at the end

The location of the company is not specified in the question.

• The question does not provide any information about the location of the company.

• It is important to clarify which company the interviewer is referring to.

• If the company name is known, a quick online search can provide its location.

CICD stands for Continuous Integration/Continuous Deployment, a process that automates the building, testing, and deployment of applications.

• CICD involves automating the process of integrating code changes, testing them, and deploying them to production.

• It typically includes stages like code commit, build, test, and deployment.

• Tools like Jenkins, GitLab CI/CD, and CircleCI are commonly used for CICD pipelines.

• CICD helps in ensuring that code changes are quickly and safely dep...read more

CPU stands for Central Processing Unit.

• CPU is the primary component of a computer that performs most of the processing inside the computer.

• It interprets and executes instructions from the computer's memory.

• CPU consists of an arithmetic logic unit (ALU), control unit, and registers.

• Examples of CPUs include Intel Core i7, AMD Ryzen 5, etc.

Import vs Direct Query vs Live connection

• Import: Data is imported into the tool for analysis, suitable for small datasets or when real-time data is not required

• Direct Query: Data is queried directly from the source in real-time, suitable for large datasets or when up-to-date data is needed

• Live connection: Data is connected live to the source, allowing for real-time updates and analysis without storing data locally

I have demonstrated various products for my previous company, including kitchen appliances, beauty products, and electronics.

• Demonstrated how to use the product effectively

• Highlighted key features and benefits

• Engaged with customers to answer questions and provide information

Operating systems are software that manages computer hardware and software resources.

• Windows - developed by Microsoft

• macOS - developed by Apple

• Linux - open-source operating system

• Android - mobile operating system

• iOS - mobile operating system

HashMap is a data structure that stores key-value pairs and uses hashing to retrieve values quickly.

• HashMap uses an array of buckets to store key-value pairs.

• Each bucket contains a linked list of entries with the same hash code.

• When a key-value pair is added, its hash code is used to determine the bucket and the entry is added to the linked list.

• When a value is retrieved, the key's hash code is used to find the bucket and the linked list is searched for the entry with the mat...read more

ETL stands for Extract, Transform, Load. It is a process used to extract data from various sources, transform it into a format that is suitable for analysis, and load it into a data warehouse or database.

• Extract: Data is extracted from different sources such as databases, files, or APIs.

• Transform: The extracted data is cleaned, formatted, and transformed into a consistent structure.

• Load: The transformed data is loaded into a data warehouse or database for analysis.

• Example: Ex...read more

Insertion sort is a simple sorting algorithm that builds the final sorted array one item at a time.

• Iterate through the array starting from the second element

• Compare each element with the elements before it and insert it in the correct position

• Repeat until all elements are sorted

• Example: [5, 2, 4, 6, 1, 3] -> [2, 4, 5, 6, 1, 3] -> [2, 4, 5, 6, 1, 3] -> [1, 2, 4, 5, 6, 3] -> [1, 2, 3, 4, 5, 6]

There are two main types of breaks: planned breaks and unplanned breaks.

• Planned breaks are scheduled breaks that are typically taken at specific times during the workday.

• Unplanned breaks are breaks that are taken as needed, such as for emergencies or unexpected situations.

There are several types of gears used in various machines and equipment.

• Spur gears

• Helical gears

• Bevel gears

• Worm gears

• Rack and pinion gears

AI stands for Artificial Intelligence, which is the simulation of human intelligence processes by machines, especially computer systems.

• AI involves the development of algorithms that can perform tasks that typically require human intelligence.

• It encompasses various subfields such as machine learning, natural language processing, and computer vision.

• AI systems can learn from data, adapt to new inputs, and perform tasks autonomously.

• Examples of AI applications include virtual a...read more

The collection process involves contacting customers who have outstanding debts and working to secure payment.

• Identify overdue accounts

• Contact customers via phone, email, or mail to remind them of their outstanding balance

• Negotiate payment plans with customers if necessary

• Document all communication and payment agreements

• Escalate to legal action if payment is not received

Java fundamentals include object-oriented programming, platform independence, and strong typing.

• Object-oriented programming: Java supports classes, objects, inheritance, and polymorphism.

• Platform independence: Java code can run on any platform with the help of JVM.

• Strong typing: Java enforces strict data type checking to prevent errors.

Insertion sort is a simple sorting algorithm that builds the final sorted array one item at a time.

• Start with the second element and compare it with the first element, swap if necessary

• Move to the third element and compare it with the second and first element, swap if necessary

• Continue this process until the entire array is sorted

• Time complexity: O(n^2)

• Example: ['banana', 'apple', 'orange', 'grape'] -> ['apple', 'banana', 'grape', 'orange']

Implementing a tree data structure using code

• Define a Node class with left and right child pointers

• Implement insert, search, and delete functions

• Traversal methods: inorder, preorder, postorder

• Examples: binary search tree, AVL tree, red-black tree

I handle customers with patience, empathy, and effective communication.

• Listen actively to understand their needs and concerns

• Respond promptly and professionally to their inquiries or issues

• Offer solutions or alternatives to resolve any problems

• Maintain a positive attitude and remain calm, even in challenging situations

SMTS stands for Structured Management Technical Solution, a method for organizing and implementing technical solutions in a structured manner.

• SMTS helps in breaking down complex technical problems into manageable components

• It involves creating a structured plan for implementing technical solutions

• SMTS ensures that technical solutions are implemented efficiently and effectively

I am a dedicated and detail-oriented analyst with a strong background in data analysis and problem-solving.

• I have a Bachelor's degree in Statistics

• I have experience using various data analysis tools such as Excel, SQL, and Python

• I have a proven track record of delivering actionable insights to drive business decisions

Patch upgradation Dem configuration involves upgrading patches on the system.

• Ensure all patches are tested before upgrading

• Schedule patch upgrades during maintenance windows

• Document all changes made during patch upgrades

• Verify system functionality after patch upgrades

• Automate patch upgrades where possible

Incremental loading is a process of updating only the new or changed data in a target system.

• It reduces the time and resources required for data integration.

• It ensures that the target system is always up-to-date with the latest data.

• It involves comparing the source and target data to identify new or changed records.

• Examples include loading new customer orders or updating existing customer information.

Command task is used to execute shell commands or scripts in Informatica.

• Command task can be used to execute Unix or Windows commands.

• It can be used to run scripts or batch files.

• The output of the command can be captured and used in subsequent tasks.

• Command task can be scheduled to run at a specific time or interval.

• It can be used to perform tasks like file system operations, database operations, etc.

An irate stakeholder is someone who is extremely angry or frustrated with a situation or outcome.

• The stakeholder may raise their voice or use aggressive language

• They may express their dissatisfaction with the project or service

• They may demand immediate resolution or compensation

• Examples: A customer who received a faulty product, a client who is unhappy with a project delay

AC stands for alternating current, which changes direction periodically. DC stands for direct current, which flows in one direction constantly.

• AC is commonly used in household appliances and power distribution systems.

• DC is commonly used in batteries and electronic devices.

• AC can be easily converted to DC using a rectifier.

• DC is more efficient for long-distance power transmission.

• Examples of AC sources include power outlets and generators.

• Examples of DC sources include batter...read more

System testing is a type of testing that verifies the behavior of a complete and fully integrated software system.

• It is performed on a complete system, not individual components

• It tests the system's compliance with functional and non-functional requirements

• It includes testing of system interfaces, performance, security, and usability

• It is usually performed after integration testing and before acceptance testing

• Examples include end-to-end testing, regression testing, and smoke...read more

Agile ceremonies are regular meetings or events in Agile methodology to facilitate communication, collaboration, and decision-making within the team.

• Sprint Planning: Meeting at the start of a sprint to plan the work to be done.

• Daily Stand-up: Short daily meeting for team members to discuss progress and plan for the day.

• Sprint Review: Meeting at the end of a sprint to review and demonstrate the completed work.

• Sprint Retrospective: Meeting at the end of a sprint to reflect on w...read more

Test case to verify login functionality on a webpage

• Enter valid username and password, verify successful login

• Enter invalid username and password, verify error message displayed

• Try logging in without entering any credentials, verify error message displayed

Reverse a linked list using recursion

• Create a recursive function to reverse the linked list

• Pass the head of the linked list to the function

• Base case: if the current node is null, return null

• Recursive case: reverse the rest of the list and point the next node's next to the current node

I switched to pursue new challenges and opportunities for growth in my career.

• Desire for new challenges and opportunities

• Seeking career growth and advancement

• Interest in learning new technologies or industries

Scheduling algorithm is a method used to determine the order of tasks to be executed on a computer system.

• Scheduling algorithms help in optimizing resource utilization and improving system performance.

• Examples of scheduling algorithms include First Come First Serve, Shortest Job Next, Round Robin, etc.

Cache policy determines how data is stored, accessed, and replaced in a cache memory.

• Cache policies include FIFO, LRU, LFU, and random replacement algorithms.

• FIFO (First In, First Out) replaces the oldest data first.

• LRU (Least Recently Used) replaces the least recently accessed data first.

• LFU (Least Frequently Used) replaces the least frequently accessed data first.

• Random replacement algorithm replaces data randomly.

I am currently earning a competitive salary based on my experience and skills.

• My current salary is in line with industry standards for data engineers.

• I have received raises and bonuses based on my performance.

• I am open to discussing salary expectations for this role.

The COVID-19 pandemic has had a significant impact on the environment.

• Reduction in air pollution due to decreased industrial activity and travel

• Improvement in water quality as a result of reduced pollution and waste

• Increase in wildlife sightings in urban areas during lockdowns

• Shift towards remote work and digital communication reducing carbon emissions

• Challenges in waste management due to increased use of single-use items like masks and gloves

Organization structure refers to the way an organization is designed and arranged in terms of roles, responsibilities, and relationships.

• Organization structure defines how tasks are divided, grouped, and coordinated within an organization.

• It includes elements such as hierarchy, reporting relationships, departments, and teams.

• Examples of organization structures include functional, matrix, and divisional structures.

• Organization structure impacts communication, decision-making, ...read more

Important web metrics include traffic, bounce rate, conversion rate, and average session duration.

• Traffic: Measure of the number of visitors to a website.

• Bounce Rate: Percentage of visitors who navigate away from the site after viewing only one page.

• Conversion Rate: Percentage of visitors who take a desired action on the site.

• Average Session Duration: Average amount of time visitors spend on the site.

I created an architectural diagram for a cloud migration project, showcasing the current and target state of the infrastructure.

• Used tools like Lucidchart and Microsoft Visio to create detailed diagrams

• Highlighted key components such as servers, databases, networking, and security measures

• Included annotations to explain the flow of data and dependencies

• Collaborated with the development and operations teams to ensure accuracy and alignment

T9 Dictionary is a predictive text technology used on mobile phones to input text using numeric keypads.

• T9 stands for Text on 9 keys

• It uses a dictionary to predict and suggest words based on the numeric keypad input

• For example, pressing 2-2-8-3-3-7-7-3-3-3 would suggest 'coffee' as a word

AA has limitations in terms of scalability, flexibility, and advanced features compared to UiPath.

• AA has limited scalability compared to UiPath, making it less suitable for large-scale automation projects.

• UiPath offers more flexibility in terms of customization and integration with other systems than AA.

• UiPath provides more advanced features such as AI and machine learning capabilities, which are not as robust in AA.

• UiPath has a larger community and marketplace for pre-built ...read more

Cloud platforms are services that provide on-demand computing resources over the internet.

• Public cloud platforms (e.g. AWS, Microsoft Azure, Google Cloud)

• Private cloud platforms (e.g. VMware, OpenStack)

• Hybrid cloud platforms (combination of public and private clouds)

• Community cloud platforms (shared infrastructure for specific community)

Cloud services are services delivered over the internet, allowing users to access and store data remotely.

• Infrastructure as a Service (IaaS) - provides virtualized computing resources over the internet

• Platform as a Service (PaaS) - provides a platform allowing customers to develop, run, and manage applications without the complexity of building and maintaining the infrastructure

• Software as a Service (SaaS) - delivers software applications over the internet on a subscription b...read more

Network types include LAN, WAN, MAN, WLAN, PAN, and CAN, each with different coverage and usage.

• LAN (Local Area Network) - limited to a small geographic area like a single building or campus

• WAN (Wide Area Network) - covers a large geographic area like a city or country, often connecting multiple LANs

• MAN (Metropolitan Area Network) - spans a city or large campus

• WLAN (Wireless Local Area Network) - uses wireless technology to connect devices within a limited area

• PAN (Personal A...read more

No post refers to a computer issue where the system does not display anything on the screen during startup.

• No beep codes or error messages are displayed during startup

• Possible causes include faulty hardware components, incorrect BIOS settings, or power supply issues

• Troubleshooting steps may involve checking connections, testing components, and resetting BIOS

Inorder traversal of a binary tree visits nodes in the order of left, root, right.

• Start at the root node

• Recursively traverse the left subtree

• Visit the current node

• Recursively traverse the right subtree

• Repeat until all nodes are visited

To find the sum of two distinct numbers, simply add the two numbers together.

• Add the two distinct numbers together to get the sum.

• Make sure the numbers are different from each other to ensure they are distinct.

• For example, the sum of 3 and 5 is 8.

Use a set to remove duplicates from a string.

• Create a set to store unique characters.

• Iterate through the string and add each character to the set.

• Convert the set back to a string to get the result.

I am a dedicated and detail-oriented technical support executive with excellent problem-solving skills.

• Proficient in troubleshooting hardware and software issues

• Strong communication skills to effectively assist customers

• Ability to work under pressure and meet deadlines

• Experience in providing remote support

• Familiarity with various operating systems and software applications

Garbage collection in Java is an automatic process of reclaiming memory by destroying unused objects.

• Garbage collection in Java is performed by the JVM to free up memory by destroying objects that are no longer referenced.

• It helps in preventing memory leaks and improving performance by automatically managing memory allocation and deallocation.

• Java provides different types of garbage collectors like Serial, Parallel, CMS, G1, etc. to suit different application needs.

Integration site 5g is a crucial part of the 5G network where different components are connected and tested.

• Integration site 5g involves connecting various network elements like base stations, core network, and radio access network.

• Testing is done at the integration site to ensure seamless communication between different components.

• Integration site 5g plays a key role in the deployment and optimization of 5G networks.

• Examples of integration site 5g equipment include routers, ...read more

Find the maximum value in an array of strings with complexity

• Convert strings to integers before finding the maximum value

• Use a loop to iterate through the array and compare each value to find the maximum

• Handle edge cases such as empty array or non-numeric strings

RAM stands for Random Access Memory, which is a type of computer memory that can be accessed randomly. SSD stands for Solid State Drive, which is a storage device that uses flash memory to store data.

• RAM is volatile memory used by computers to store data and program instructions temporarily.

• SSD is a non-volatile storage device that uses flash memory to store data permanently.

• RAM is faster but more expensive than SSD.

• Examples: DDR4 RAM, Samsung SSD.

Testing is the process of evaluating a software application to find defects and ensure it meets requirements.

• Testing involves executing the software with the intent of finding bugs or issues.

• It is done to ensure the software meets the specified requirements and functions correctly.

• Types of testing include functional testing, performance testing, and security testing.

• Examples of testing tools include Selenium, JUnit, and LoadRunner.

Ind AS refers to Indian Accounting Standards which are converged with IFRS to ensure transparency and consistency in financial reporting.

• Ind AS are principles-based standards that aim to improve transparency and consistency in financial reporting.

• They are converged with International Financial Reporting Standards (IFRS) to align with global practices.

• Ind AS application requires understanding of complex accounting principles and their practical implications.

• Companies in India ...read more

Find two numbers in an array that add up to a specific target value.

• Use a hashmap to store the difference between the target value and each element in the array.

• Iterate through the array and check if the current element's complement exists in the hashmap.

• Return the indices of the two numbers that add up to the target value.

Principles of PMO involve establishing governance, standardizing processes, providing support, and ensuring alignment with organizational goals.

• Establishing governance to ensure projects are aligned with organizational objectives

• Standardizing processes to improve efficiency and consistency

• Providing support to project managers and teams to help them succeed

• Ensuring alignment with organizational goals to maximize value and impact

• Examples: creating project charters, implementing...read more

Developed a data visualization project for tracking sales performance

• Utilized Tableau to create interactive dashboards

• Integrated data from multiple sources to provide comprehensive insights

• Collaborated with sales team to identify key metrics and KPIs

Developed a machine learning model to predict customer churn for a telecom company

• Used Python and scikit-learn for data preprocessing and model building

• Performed feature engineering to improve model accuracy

• Evaluated model performance using metrics like accuracy, precision, and recall

The question asks for the minimum of 2 numbers.

• Compare the two numbers and return the smaller one.

• Use an if statement or a built-in function to find the minimum.

• Example: If the numbers are 5 and 3, the minimum is 3.

A software for managing inventory in a retail store

• Create a user-friendly interface for adding, updating, and deleting products

• Include features for tracking sales, restocking inventory, and generating reports

• Implement barcode scanning functionality for quick product lookup

LinkedList is a data structure where each element is connected to the next element through a pointer.

• Each element in a LinkedList is called a node and contains data and a reference to the next node.

• LinkedList allows for dynamic size and efficient insertion and deletion of elements.

• Example: LinkedList can be used to implement a stack or queue data structure.

OOPS (Object-Oriented Programming) is a programming paradigm based on the concept of objects, which can contain data and code.

• OOPS focuses on creating objects that interact with each other to solve problems

• It involves concepts like inheritance, encapsulation, polymorphism, and abstraction

• Example: Inheritance allows a class to inherit properties and behavior from another class

Types of testing include unit testing, integration testing, system testing, and acceptance testing.

• Unit testing: Testing individual components or modules of the software.

• Integration testing: Testing how different modules work together.

• System testing: Testing the entire system as a whole.

• Acceptance testing: Testing to ensure the software meets the requirements of the end users.