70+ Interview Questions and Answers

STLC is Software Testing Life Cycle, SDLC is Software Development Life Cycle. Software testing is the process of evaluating a system or application to find defects or errors.

• STLC is a set of activities performed to ensure the quality of a software product.

• SDLC is a framework that describes the tasks and activities required to develop and maintain software.

• Software testing is important to identify defects and ensure the quality of the software.

• Choosing to be a QA Engineer may ...read more

To manage changing requirements in between sprints, effective communication, prioritization, and flexibility are key.

• Regularly communicate with the client to understand their changing requirements

• Prioritize the changes based on their impact and urgency

• Adjust the sprint plan and allocate resources accordingly

• Ensure the development team is aware of the changes and can adapt

• Monitor the progress and make necessary adjustments to meet the new requirements

• Document the changes and t...read more

To calculate the total area of Bangalore city, we can use a combination of satellite imagery, GIS data, and land survey records.

• Obtain satellite imagery of Bangalore city to get an overview of the area

• Utilize GIS data to analyze the geographical boundaries and land usage within the city

• Refer to land survey records for accurate measurements of land parcels and properties

• Combine all the data sources to calculate the total area of Bangalore city

Marketing strategies are plans and tactics implemented by businesses to promote their products or services and reach their target audience.

• Identifying target audience and market segmentation

• Creating a unique value proposition

• Developing a marketing mix (product, price, place, promotion)

• Utilizing digital marketing channels (social media, email marketing, SEO)

• Implementing content marketing and storytelling

• Building brand awareness through advertising and PR

• Engaging in influencer ...read more

Integrating Java code in production involves several steps.

• Ensure the code is properly tested and meets all requirements

• Package the code into a deployable format, such as a JAR file

• Deploy the code to the production environment

• Monitor the code for any issues or errors

• Perform regular maintenance and updates as needed

I have experience in managing supply chain operations and order to cash processes.

• Managed inventory levels to ensure timely delivery of products to customers

• Worked on optimizing order processing and fulfillment to improve efficiency

• Collaborated with cross-functional teams to streamline supply chain operations

• Utilized ERP systems to track orders and monitor inventory levels

To create a custom read-only list, use the ReadOnlyCollection class in C#.

• Create a List object with the desired elements.

• Use the AsReadOnly() method to create a read-only wrapper around the list.

• Use the ReadOnlyCollection class to create a truly read-only list.

• Example: List myList = new List{"apple", "banana", "orange"};

• Example: var readOnlyList = myList.AsReadOnly();

• Example: var trulyReadOnlyList = new ReadOnlyCollection(myList);

Random forest is an ensemble of decision trees that improves accuracy and reduces overfitting.

• Decision tree is a single tree that predicts outcomes based on a set of rules.

• Random forest combines multiple decision trees to make a more accurate prediction.

• Random forest reduces overfitting by randomly selecting a subset of features for each tree.

• Random forest is a type of supervised learning algorithm used for classification and regression tasks.

• Example: Decision tree can be use...read more

HighRadius has core values of customer success, innovation, teamwork, and integrity.

• Customer success is the top priority

• Innovation is encouraged and valued

• Teamwork is essential for success

• Integrity is upheld in all interactions

• Examples: HighRadius provides excellent customer service, regularly introduces new and innovative products, fosters a collaborative work environment, and maintains ethical business practices.

Approximately 321,000,000 cubic miles of water is present in the Atlantic Ocean.

• The Atlantic Ocean is the second-largest ocean in the world.

• It covers an area of about 41,100,000 square miles.

• The average depth of the Atlantic Ocean is around 12,880 feet.

• The volume of water in the Atlantic Ocean is estimated to be around 321,000,000 cubic miles.

Revenue recognition in project implementation is crucial for financial reporting. Key KPIs include project profitability, revenue growth, and cash flow.

• Revenue recognition is the process of recording revenue in the financial statements when it is earned, regardless of when the cash is received.

• Key KPIs for project implementation include project profitability, which measures the financial success of a project, revenue growth, which indicates the increase in revenue over time, ...read more

kmeans is a clustering algorithm that groups data points into k clusters based on their similarity.

• kmeans is an unsupervised learning algorithm

• It starts by randomly selecting k centroids

• Then, it assigns each data point to the nearest centroid

• After that, it recalculates the centroids based on the mean of the data points in each cluster

• It repeats the process until the centroids no longer move significantly

• The value of k determines the number of clusters to be formed

• Choosing the...read more

Introduce a voice assistant feature in WhatsApp for hands-free messaging and calling.

• Conduct user research to understand the needs and preferences of WhatsApp users regarding voice assistant technology.

• Collaborate with engineers to develop the voice assistant feature, ensuring it is user-friendly and seamless.

• Test the feature with a small group of users to gather feedback and make necessary improvements.

• Launch the feature to a wider audience, monitor its performance, and iter...read more

Exceptions are errors that occur during program execution and can be handled using try-catch blocks.

• Checked exceptions: must be handled or declared in the method signature

• Unchecked exceptions: occur at runtime and do not need to be declared

• Error: serious problems that cannot be handled, such as OutOfMemoryError

• Examples: NullPointerException, ArrayIndexOutOfBoundsException

Implemented a new software system that streamlined processes and increased efficiency for the client.

• Identified client's pain points and tailored the solution to address them

• Provided training and support to ensure successful adoption of the new system

• Measured key performance indicators before and after implementation to demonstrate value

• Received positive feedback from client on improved productivity and cost savings

P2P, OTC, RTR are finance processes commonly used in organizations.

• P2P stands for Procure-to-Pay and refers to the process of purchasing goods or services, receiving them, and making payments.

• OTC stands for Order-to-Cash and involves the entire process from receiving customer orders to receiving payment for the goods or services provided.

• RTR stands for Record-to-Report and encompasses the financial accounting processes, including recording transactions, preparing financial st...read more

I would listen to their concerns, empathize with them, and work towards finding a solution that meets their needs.

• Remain calm and professional

• Listen actively to their concerns

• Empathize with their situation

• Apologize for any inconvenience caused

• Work towards finding a solution that meets their needs

• Communicate clearly and effectively throughout the process

I would start by introducing myself and my company, then briefly explain the benefits of our product tailored to the client's needs.

• Introduce yourself and your company professionally

• Briefly explain the key benefits of the product

• Tailor the pitch to address the client's specific needs or pain points

• Ask open-ended questions to engage the client in a conversation

• Offer to provide more information or schedule a follow-up meeting

DBMS stands for Database Management System. It is a software that manages databases and allows users to interact with them.

• DBMS is used to create, retrieve, update, and manage data in a database.

• Common DBMS languages include SQL (Structured Query Language), MySQL, Oracle, and Microsoft SQL Server.

• SQL is a standard language for interacting with relational databases.

• MySQL is an open-source relational database management system.

• Oracle is a popular enterprise-level DBMS.

• Microsoft...read more

HighRadius is a fintech company that provides AI-powered solutions for accounts receivable and treasury management.

• HighRadius offers solutions for credit, collections, deductions, cash application, and electronic payments.

• Their AI platform, Rivana, helps companies automate and optimize their accounts receivable processes.

• HighRadius has over 400 clients worldwide, including major corporations like Starbucks and Procter & Gamble.

Programming languages are used to create software applications, while scripting languages are used to automate tasks within software applications.

• Programming languages are compiled before execution, while scripting languages are interpreted at runtime.

• Programming languages are typically used for larger, more complex applications, while scripting languages are often used for smaller, simpler tasks.

• Examples of programming languages include Java, C++, and Python, while examples ...read more

I would reinvent the pencil and eraser by creating a digital smart pen with built-in eraser functionality.

• Develop a digital pen that can be used on touchscreens and paper, with the ability to save and transfer notes digitally.

• Include an eraser function on the pen itself, allowing users to easily correct mistakes without needing a separate eraser.

• Integrate Bluetooth technology to connect the pen to devices for seamless digital note-taking and editing.

• Offer different tip option...read more

Implemented a predictive ML model for customer churn prediction in a telecom company.

• Used logistic regression algorithm for classification

• Performed feature engineering to extract relevant customer data

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

Collections are data structures that store and manipulate groups of related objects.

• Collections are used to store and manipulate groups of related objects

• They can be classified into three main categories: Lists, Sets, and Maps

• Lists maintain the order of elements and allow duplicates (e.g. ArrayList, LinkedList)

• Sets do not allow duplicates and do not maintain order (e.g. HashSet, TreeSet)

• Maps store key-value pairs and do not allow duplicate keys (e.g. HashMap, TreeMap)

Use a SELECT statement with a GROUP BY clause to remove duplicate records from a table.

• Use the DISTINCT keyword in a SELECT statement to retrieve unique records.

• Use the GROUP BY clause with appropriate columns to group duplicate records together.

• Consider using the ROW_NUMBER() function to assign a unique number to each row and then filter out duplicates based on this number.

Internet in the cloud enables access to web-based applications and services from anywhere in the world.

• Cloud-based applications can be accessed through a web browser or mobile app

• Internet connectivity is required to access cloud services

• Cloud providers offer global data centers to ensure low latency and high availability

• Examples include Google Drive, Dropbox, and Salesforce

HRC follows a structured method for project implementation.

• HRC starts by conducting a thorough analysis of the project requirements and objectives.

• They create a detailed project plan outlining tasks, timelines, and responsibilities.

• Regular communication and collaboration with stakeholders is maintained throughout the implementation process.

• Testing and quality assurance procedures are conducted to ensure the project meets requirements.

• Training and support are provided to end-u...read more

Find the 2nd most repetitive character in a string using streams.

• Convert the string to a character array

• Use Java streams to group the characters by count

• Sort the map by values to find the 2nd most repetitive character

HighRadius Products are a suite of software solutions designed to optimize and automate accounts receivable and treasury operations.

• HighRadius offers products like the Integrated Receivables platform, which helps streamline cash application, collections, and deductions management.

• They also have solutions like the RadiusOne A/R Suite, which provides AI-powered analytics and insights for credit and collections teams.

• HighRadius products are used by companies across various indus...read more

SaaS Industry refers to software as a service model where software is hosted on the cloud and accessed via the internet. FinTech products are financial technology solutions that leverage technology to improve financial services.

• SaaS Industry involves providing software applications through the internet on a subscription basis

• FinTech products are technology solutions that enhance financial services such as payments, lending, and investments

• Examples of SaaS in FinTech include o...read more

Exceptions should be handled gracefully to prevent application crashes.

• Use try-catch blocks to catch exceptions.

• Handle exceptions at the appropriate level of abstraction.

• Log exceptions to aid in debugging.

• Provide meaningful error messages to the user.

• Avoid catching generic exceptions.

• Use finally blocks to release resources.

• Consider using custom exceptions for specific error conditions.

Yes, I have experience working on SQL queries in previous projects.

• Developed complex SQL queries to retrieve specific data from databases

• Used SQL functions and joins to manipulate and analyze data

• Optimized queries for performance and efficiency

• Worked with SQL databases such as MySQL, PostgreSQL, or SQL Server

React is a JavaScript library for building user interfaces.

• React allows for building reusable UI components

• It uses a virtual DOM for efficient updates

• React is declarative, making it easier to reason about code

• It is widely used in web development for its performance and flexibility

Revenue accounting involves recording and tracking all income earned by a company from its core business activities.

• Revenue accounting focuses on recognizing and recording revenue from sales, services, and other sources.

• It involves ensuring revenue is properly classified, measured, and reported in financial statements.

• Revenue recognition principles such as matching revenue with expenses and the realization principle are key in revenue accounting.

• Revenue accounting also involv...read more

Azure Active Directory is a cloud-based identity and access management service provided by Microsoft for managing users and groups.

• Azure Active Directory (AAD) is used to manage user identities and access to resources in Azure.

• It provides single sign-on capabilities for users to access various applications.

• AAD integrates with on-premises Active Directory for seamless user authentication and authorization.

• It allows for multi-factor authentication, conditional access policies, ...read more

Delta in cloud refers to the difference between two versions of a file or data.

• Delta is used to reduce the amount of data that needs to be transferred during updates or backups.

• It helps in saving bandwidth and storage space.

• For example, in cloud storage, only the changes made to a file are synced instead of the entire file.

• Delta compression is also used in cloud computing to optimize network traffic and reduce latency.

GTM approach is crucial for successful product launch and market penetration.

• GTM (Go-To-Market) approach is a comprehensive strategy that outlines how a product will be introduced to the market and how it will be promoted.

• It involves identifying target customers, defining value proposition, setting pricing and distribution strategy, and creating a marketing plan.

• A well-defined GTM approach can help a company differentiate its product from competitors, reach the right audience...read more

String manipulation problems involve modifying or analyzing strings of characters.

• Use built-in string methods like substring, replace, and split.

• Regular expressions can be powerful tools for pattern matching and manipulation.

• Be mindful of edge cases like empty strings and null values.

• Consider the time and space complexity of your solution.

• Practice with coding challenges on websites like LeetCode and HackerRank.

Controlling project plan efficiently involves setting clear goals, monitoring progress, managing resources effectively, and adapting to changes.

• Set clear project goals and objectives

• Monitor progress regularly and adjust timelines as needed

• Manage resources effectively to avoid delays

• Communicate with team members and stakeholders regularly

• Use project management tools and software to track tasks and deadlines

A car for the blind should have advanced sensors, audio cues, and tactile feedback to assist the driver.

• The car should have sensors that can detect obstacles and alert the driver through audio cues or tactile feedback.

• The car should have a navigation system that can provide audio directions and alerts.

• The car should have a tactile dashboard that can provide information about speed, fuel level, and other important data.

• The car should have a voice-activated system that can cont...read more

Expected CTC is based on candidate's experience, skills, industry standards, and company budget.

• Expected CTC varies depending on candidate's experience level

• Consider industry standards and company budget when determining CTC

• Negotiation skills can also impact the final CTC offer

The assignment involved analyzing market trends and creating a strategic plan for a new product launch.

• Researched current market trends and competitor analysis

• Developed a comprehensive strategic plan for product launch

• Presented findings and recommendations to stakeholders

You can find an email by searching through online directories, social media platforms, company websites, or using email finding tools.

• Use online directories like LinkedIn or ZoomInfo to search for the person's contact information.

• Check the company's website for a contact page or employee directory.

• Utilize social media platforms like Twitter or Facebook to find the person's email address.

• Consider using email finding tools like Hunter or Clearbit to locate email addresses.

• Reach...read more

Qualifying an account involves assessing its potential value and fit with the company's target market.

• Evaluate the account's industry, size, and location

• Assess the account's current needs and challenges

• Determine if the account aligns with the company's ideal customer profile

• Consider the account's budget and decision-making process

• Look for potential for long-term partnership or repeat business

Binary search can be used to efficiently find the number of coins in a sorted array.

• Start by setting low to 0 and high to the length of the array minus 1.

• While low is less than or equal to high, calculate the mid point.

• Compare the value at the mid point with the target number of coins and adjust low or high accordingly.

• Return the index of the target number of coins if found, otherwise return -1.

A virtual network is a network that exists virtually within a cloud environment, allowing resources to communicate securely.

• Virtual networks provide isolation and segmentation for resources within a cloud environment.

• They allow for secure communication between resources, such as virtual machines, in the cloud.

• Virtual networks can be configured with subnets, security groups, and network security groups to control traffic flow and access.

• They can also connect to on-premises net...read more

Binary search is a search algorithm that finds the position of a target value within a sorted array.

• The array must be sorted before applying binary search

• Compare the target value with the middle element of the array

• If the target value is smaller, search the left half of the array

• If the target value is larger, search the right half of the array

• Repeat until the target value is found or the search space is exhausted

Azure AD is Microsoft's cloud-based identity and access management service.

• Azure AD allows users to sign in and access resources like apps and services.

• It provides features like single sign-on, multi-factor authentication, and role-based access control.

• Azure AD can be integrated with on-premises Active Directory for hybrid identity management.

Count frequency of characters in a given string.

• Iterate through each character in the string

• Use a hashmap to store the count of each character

• Return the hashmap with character frequencies

Microservice architecture is an architectural style that structures an application as a collection of loosely coupled services.

• Microservices are small, independent, and autonomous services that communicate with each other through APIs.

• Each microservice is responsible for a specific business capability and can be developed, deployed, and scaled independently.

• Microservices promote flexibility, scalability, and fault tolerance in complex applications.

• Examples of microservice arc...read more

A virtual machine is a software-based emulation of a physical computer that operates like an actual computer.

• Virtual machines allow multiple operating systems to run on a single physical machine

• They are isolated from each other and can be easily created, modified, and deleted

• Common virtual machine software includes VMware, Hyper-V, and VirtualBox

Azure DNS is a hosting service for DNS domains, providing name resolution using Microsoft Azure infrastructure.

• Azure DNS allows you to host your DNS domains and manage DNS records using Azure's infrastructure.

• It provides high availability and scalability for your DNS domains.

• You can use Azure DNS to map your domain names to the IP addresses of your Azure resources.

• It supports various record types such as A, AAAA, CNAME, MX, NS, PTR, SOA, SRV, and TXT records.

Negotiable based on job responsibilities, industry standards, and company budget.

• Expected CTC is based on job responsibilities and industry standards.

• Consider factors like experience, education, skills, and location.

• Research average salaries for similar roles in the industry.

• Be prepared to negotiate based on company budget and benefits package.

A transformer is an electrical device that transfers electrical energy between two or more circuits through electromagnetic induction.

• Transformers are used to increase or decrease voltage levels in electrical circuits.

• They consist of two coils of wire, known as the primary and secondary coils, wrapped around a core made of iron or other magnetic materials.

• Transformers are commonly used in power distribution systems to step up voltage for long-distance transmission and step do...read more

As a user, I want to be able to filter search results by price range.

• User should be able to set a minimum and maximum price range

• Search results should only display items within the selected price range

• Price range filter should be easily accessible and adjustable

High level design of a hotel system involves defining the overall structure and functionality of the software.

• Define user roles (admin, staff, guest)

• Implement booking and reservation system

• Include payment processing functionality

• Incorporate room management and inventory tracking

• Integrate with external systems like online booking platforms

Redux is a predictable state container for JavaScript apps.

• Redux is a state management library for React

• It helps in managing the state of the application in a predictable manner

• It follows a unidirectional data flow pattern

• It has three main components: store, actions, and reducers

• Store holds the state of the application

• Actions are plain JavaScript objects that describe what happened

• Reducers specify how the application's state changes in response to actions

• Redux can be used wit...read more

I prioritize tasks based on deadlines, importance, and impact on overall production.

• I create a list of all tasks that need to be completed

• I assess the deadlines for each task and prioritize based on urgency

• I consider the importance of each task in relation to the overall production goals

• I also take into account the potential impact of each task on the production process

• I regularly review and adjust priorities as needed

Highradius offers innovative solutions for both B2B and B2C businesses, making it a versatile choice for product consultants.

• Highradius provides cutting-edge technology and automation for B2B companies to streamline their financial processes.

• Highradius also offers solutions for B2C businesses to enhance customer experience and drive sales.

• The platform's flexibility and scalability make it suitable for a wide range of industries and business sizes.

• Highradius has a strong track...read more

Implementing a hashmap using an array of strings

• Create an array of strings to store key-value pairs

• Implement a hash function to map keys to indices in the array

• Handle collisions by using a linked list at each index

SQL join is used to combine rows from two or more tables based on a related column between them.

• SQL join is used to retrieve data from multiple tables based on a related column.

• Types of SQL joins include INNER JOIN, LEFT JOIN, RIGHT JOIN, and FULL JOIN.

• Example: SELECT * FROM table1 INNER JOIN table2 ON table1.column = table2.column;

CORS stands for Cross-Origin Resource Sharing and is a security feature that allows or restricts resources on a web page to be requested from another domain.

• CORS is important for security reasons as it prevents malicious websites from making unauthorized requests to a different domain.

• It allows servers to specify who can access their resources by setting appropriate HTTP headers.

• CORS is essential for enabling cross-origin requests in web applications, such as AJAX requests or...read more

The motor is a device that converts electrical energy into mechanical energy to produce motion.

• Converts electrical energy into mechanical energy

• Used to produce motion in machines or vehicles

• Examples include electric motors in cars, fans, and appliances

A generator is a device that converts mechanical energy into electrical energy.

• Generators are commonly used to provide backup power during outages.

• They can be powered by various sources such as gasoline, diesel, natural gas, or renewable energy sources.

• Generators come in different sizes and capacities to suit different power needs.

• Examples include portable generators for camping trips and standby generators for homes or businesses.

A resistor is an electronic component that resists the flow of electrical current, used to control the amount of current in a circuit.

• Resistors are passive components in electronic circuits

• They are used to limit current flow, divide voltages, and adjust signal levels

• Resistors are measured in ohms (Ω)

• Examples include carbon film resistors, metal film resistors, and variable resistors like potentiometers

Muscle memory refers to the ability of muscles to perform a specific task without conscious effort due to repetition.

• Muscle memory is developed through consistent practice and repetition of movements.

• It allows for more efficient and accurate performance of tasks over time.

• Examples include playing a musical instrument, typing on a keyboard, or performing a dance routine.

• Muscle memory can be beneficial in roles that require physical coordination or repetitive actions.

A servlet in Java is a server-side component that extends the capabilities of servers.

• Create a class that extends HttpServlet

• Override the doGet or doPost method

• Implement the logic for handling requests and generating responses

• Register the servlet in web.xml or using annotations

Implementing a new product feature with tight deadline

• Tight deadline required quick decision-making

• Collaborated with cross-functional teams to prioritize tasks

• Managed stakeholder expectations effectively

ASC 606 outlines the steps for recognizing revenue from contracts with customers.

• Identify the contract with the customer

• Identify the performance obligations in the contract

• Determine the transaction price

• Allocate the transaction price to the performance obligations

• Recognize revenue when (or as) the entity satisfies a performance obligation