200+ Interview Questions and Answers

To detect the first node of a cycle in a singly linked list, we can use the Floyd's Tortoise and Hare algorithm.

• Use two pointers, slow and fast, to traverse the linked list.

• If there is a cycle, the fast pointer will eventually catch up to the slow pointer.

• Move the fast pointer twice as fast as the slow pointer.

• Once the pointers meet, reset the slow pointer to the head of the linked list.

• Move both pointers at the same speed until they meet again.

• The meeting point is the first ...read more

Answering questions on .NET Core, Razor engine, and Angular

• Implemented dependency injection in .NET Core using built-in DI container or third-party libraries like Autofac or Ninject

• Used Razor engine to build dynamic views by creating Razor views with HTML and C# code to generate dynamic content

• Built single-page applications using Angular by creating components, services, and modules to manage data and UI

Implemented JWT and OAuth authentication in Angular and .NET Core apps.

• Used Angular's HttpInterceptor to add JWT token to requests

• Implemented OAuth2 authentication using IdentityServer4 in .NET Core

• Stored user credentials securely using ASP.NET Core Identity

• Used HTTPS to encrypt data in transit

• Implemented role-based authorization using ASP.NET Core Identity

Parallel stream is not always beneficial in Java Stream API.

• Parallel stream can be slower than sequential stream for small data sets or when the overhead of parallelism is greater than the benefit.

• Parallel stream can be beneficial for large data sets or when the operations are independent and can be executed in parallel.

• It is important to measure the performance of both sequential and parallel streams for a specific use case to determine which is more efficient.

The interview question is about MCQ questions on English proficiency, business aptitude, and data interpretation.

• The question consists of 25 multiple-choice questions.

• The topics covered are English proficiency, business aptitude, and data interpretation.

• The candidate needs to answer the questions based on their knowledge and understanding of these subjects.

• Examples of questions may include grammar, vocabulary, business scenarios, and data analysis.

Different types of joins in SQL include inner join, left join, right join, and full outer join.

• Inner join returns only the matching rows from both tables

• Left join returns all rows from the left table and the matching rows from the right table

• Right join returns all rows from the right table and the matching rows from the left table

• Full outer join returns all rows from both tables, including unmatched rows

Tableau components include Desktop, Server, Prep, Online, Public. Different connections include live, extract, ODBC, cloud, etc.

• Tableau components: Desktop, Server, Prep, Online, Public

• Different connections: Live, Extract, ODBC, Cloud, etc.

• Live connection: Directly connects to the data source and updates in real-time

• Extract connection: Data is extracted and stored in Tableau's proprietary format for faster performance

• ODBC connection: Connects to databases using ODBC drivers

• Cl...read more

Best practices for web app performance and security

• Use caching to improve performance

• Minimize HTTP requests and optimize images

• Implement input validation and sanitize user input to prevent attacks

• Use HTTPS and secure authentication methods

• Regularly update software and apply security patches

• Implement rate limiting and other security measures to prevent brute force attacks

A trigger in Python is an event that causes a specific function or code to execute.

• Triggers can be used to automate tasks or respond to specific events.

• They are often used in web development to execute code when a user interacts with a webpage.

• Triggers can also be used in databases to execute code when certain data is inserted, updated, or deleted.

• Examples of triggers in Python include mouse clicks, keyboard inputs, and database events.

Data aggregation refers to the process of combining and summarizing data from multiple sources into a single dataset.

• Data aggregation involves collecting and merging data from various sources.

• It aims to provide a consolidated view of the data for analysis and reporting.

• Aggregated data is typically summarized using statistical functions like sum, average, count, etc.

• Examples of data aggregation include calculating total sales by region, average customer age, or sum of website ...read more

Yes, workplace solutions are necessary for a productive and efficient work environment.

• Workplace solutions can improve communication and collaboration among team members.

• They can also enhance productivity and reduce stress levels.

• Examples of workplace solutions include project management software, ergonomic furniture, and flexible work arrangements.

• Implementing workplace solutions can lead to higher employee satisfaction and retention rates.

Use Spring Boot's @Transactional annotation to handle multiple database transactions

• Use @Transactional annotation on service methods to handle transactions across multiple databases

• Configure multiple DataSource beans in your Spring Boot application

• Use @Qualifier annotation to specify which DataSource to use in each transaction

Using Java streams API may impact performance depending on how it is implemented.

• Performance impact can vary based on the size of the data being processed.

• Improper use of streams can lead to unnecessary overhead and decreased performance.

• Parallel streams can improve performance for large datasets by utilizing multiple threads.

• Careful consideration of stream operations and data size is important for optimizing performance.

Logging in microservices follows 12 factor principles.

• Each microservice should log to stdout or stderr

• Logs should be treated as event streams and sent to a centralized log aggregator

• Logs should be structured data in a common format like JSON or syslog

• Logs should include contextual information like request ID, user ID, etc.

• Logs should be stored and rotated automatically

• Logs should be monitored for errors and anomalies

Subquery is a query within another query. It is required to retrieve data from multiple tables or to perform complex calculations.

• Subquery is enclosed within parentheses and is executed first before the main query.

• It can be used in SELECT, FROM, WHERE, and HAVING clauses.

• Subquery can be correlated or non-correlated.

• Examples of subquery include finding the maximum or minimum value in a table, filtering data based on a condition, and joining tables.

I have brought hard and soft dollar savings of over $5 million for my past portfolio.

• Implemented cost-saving measures resulting in $3 million hard dollar savings

• Improved team efficiency resulting in $2 million soft dollar savings

• Negotiated better vendor contracts resulting in $500,000 hard dollar savings

• Introduced automation resulting in $500,000 soft dollar savings

• Reduced employee turnover resulting in $100,000 soft dollar savings

The two financial statements I would pick are the income statement and the balance sheet.

• The income statement shows a company's revenue, expenses, and net income over a period of time.

• The balance sheet shows a company's assets, liabilities, and equity at a specific point in time.

• Both statements are important for analyzing a company's financial health and performance.

• For example, the income statement can help determine if a company is profitable, while the balance sheet can sh...read more

Agile practices and metrics are essential for effective product management.

• Agile practices involve iterative development, continuous feedback, and collaboration among cross-functional teams.

• Metrics such as velocity, burn-down charts, and cycle time help measure progress and identify areas for improvement.

• Product management metrics include customer satisfaction, user engagement, and revenue growth.

• Agile methodologies like Scrum and Kanban provide frameworks for implementing th...read more

Spring Boot application startup involves auto-configuration, component scanning, and dependency injection.

• Spring Boot uses embedded Tomcat, Jetty, or Undertow server for running the application.

• Auto-configuration automatically configures the application based on dependencies and properties.

• Component scanning scans the project for components like controllers, services, and repositories.

• Dependency injection injects dependencies into components using annotations like @Autowired.

Three friends engage in a combination of biking and walking.

• Three friends are involved in the activity

• They engage in both biking and walking

• No specific details about the duration or distance of the activity

Sample size for a control is determined based on statistical significance and desired level of confidence.

• Determine the desired level of confidence (usually 95%)

• Calculate the margin of error based on the control's standard deviation

• Use a sample size calculator to determine the required sample size

• Consider the population size and adjust the sample size accordingly

• Ensure the sample is representative of the population being tested

Financial management, production management, and organizational management are business functions. PE ratio, working capital, and activity ratio are financial metrics.

• Financial management involves planning, organizing, directing, and controlling financial activities of an organization.

• Production management involves planning, organizing, directing, and controlling production activities of an organization.

• Organizational management involves planning, organizing, directing, and c...read more

Automation was done to increase efficiency and reduce errors. Stakeholders were convinced through cost-benefit analysis and demonstrations.

• Automation was done when manual processes were time-consuming and prone to errors.

• Stakeholders were convinced through cost-benefit analysis, showing the long-term savings and increased productivity.

• Demonstrations were also used to showcase the benefits of automation, such as faster processing times and reduced errors.

• The method or process ...read more

Authentication and Authorization in .Net core

• Authentication verifies the identity of a user while Authorization checks if the user has access to a resource

• .Net core provides built-in authentication and authorization middleware

• Authentication can be done using various methods like JWT, OAuth, Cookies, etc.

• Authorization can be done using policies, roles, claims, etc.

Control design and operating effectiveness can be tested through various methods.

• Reviewing control design documentation

• Performing walkthroughs of control processes

• Testing control activities through simulations or actual transactions

• Analyzing control testing results and identifying areas for improvement

• Assessing the overall effectiveness of controls in achieving their intended objectives

To configure 2 databases in Spring Boot, you can use multiple DataSource beans and specify them in application.properties.

• Define multiple DataSource beans in your configuration class

• Use @Primary annotation to specify the primary DataSource

• Use @Qualifier annotation to specify the secondary DataSource

• Configure the properties for each DataSource in application.properties

ConcurrentModificationException is a runtime exception thrown by Java when an object is modified concurrently while iterating over it.

• Occurs when a collection is modified while being iterated over using an iterator

• Can be avoided by using ConcurrentHashMap or CopyOnWriteArrayList

• Example: List list = new ArrayList<>(); Iterator iterator = list.iterator(); list.add("example");

Data Management involves the process of collecting, storing, organizing, maintaining, and utilizing data effectively.

• Data Management is the process of ensuring that data is accurate, complete, and consistent.

• It involves the creation of policies and procedures for data usage, storage, and maintenance.

• Data Governance is a subset of Data Management that focuses on the management of data assets and their usage.

• Big Data refers to large and complex data sets that cannot be processe...read more

Cheque is a written order to a bank to pay a specific amount of money. Reconciliation is the process of comparing two sets of records to ensure they are in agreement. Suspense account is an account used to temporarily hold transactions that cannot be classified. Demand draft is a type of check used to make a payment from one bank account to another.

• Cheque is a negotiable instrument that directs a bank to pay a specific amount of money to the bearer or a named person.

• Cheques h...read more

Use text comparison tools like Diff Checker or Adobe Acrobat Pro to compare content and identify similarities and differences.

• Use text comparison tools like Diff Checker or Adobe Acrobat Pro

• Identify similarities and differences in content, formatting, images, and metadata

• Analyze word count, page count, and overall structure of the PDFs

• Consider using machine learning algorithms for more advanced comparison

End to end data solution involves collecting, processing, analyzing, and presenting data to address business needs.

• Collecting data from various sources such as databases, APIs, and files

• Cleaning and processing data to ensure accuracy and consistency

• Analyzing data using statistical methods and machine learning algorithms

• Presenting insights and recommendations to stakeholders

• Handling a challenging situation: Resolving discrepancies in data sources by collaborating with IT team

I led a project to develop a predictive analytics platform for a retail company, integrating various data sources and implementing machine learning models.

• Developed project scope and requirements with stakeholders

• Designed data architecture and selected appropriate tools and technologies

• Integrated data from multiple sources including CRM, POS, and online platforms

• Implemented machine learning models for demand forecasting and customer segmentation

• Managed development life cycle ...read more

We use a combination of analytics tools, customer feedback, and user testing to track usage and product performance.

• We regularly analyze data from tools like Google Analytics and Mixpanel to track user behavior and engagement.

• We also gather feedback from customers through surveys, interviews, and support interactions to understand their needs and pain points.

• We conduct user testing to observe how customers interact with our product and identify areas for improvement.

• We use th...read more

The bank will give me the loan because of my strong credit history, stable income, and collateral.

• I have a high credit score and a good credit history, which shows that I am responsible with my finances.

• I have a stable job and a steady income, which means I am able to make regular loan payments.

• I have collateral, such as a house or car, which the bank can use as security in case I am unable to repay the loan.

• I have a solid business plan and a clear purpose for the loan, which...read more

To delete duplicate records in SQL, use the DELETE statement with a subquery to identify and remove the duplicates.

• Use the GROUP BY clause to group the records by the columns that define duplicates.

• Use the HAVING clause to filter the groups and keep only the duplicates.

• Use the DELETE statement with a subquery to delete the duplicate records.

Spring MVC is a web framework for building web applications, while Spring Boot is an opinionated way to create Spring applications.

• Spring MVC is a part of the larger Spring Framework, providing a model-view-controller architecture for web applications.

• Spring Boot is a standalone application that simplifies the Spring application development process by providing defaults for configuration.

• Spring Boot includes embedded servers like Tomcat, Jetty, or Undertow, making it easy to ...read more

Loan documents are legal papers that outline the terms and conditions of a loan. Different types of loans include personal loans, mortgages, and student loans.

• Loan documents are legal agreements between a lender and a borrower.

• They outline the terms and conditions of the loan, including the loan amount, interest rate, repayment schedule, and any collateral or guarantees required.

• Different types of loans include personal loans, mortgages, auto loans, student loans, and busines...read more

The golden rule of accounting is to record every financial transaction in a systematic and accurate manner.

• All financial transactions must be recorded

• Accuracy is key in accounting

• Transactions must be recorded systematically

• The golden rule is the foundation of accounting

• Helps maintain transparency and accountability

• Examples include recording sales, expenses, and assets

Different sentence embeddings techniques include Word2Vec, GloVe, FastText, and BERT, each affecting output based on context and complexity.

• Word2Vec: Represents words as vectors based on context, affecting similarity and relationships between words.

• GloVe: Global Vectors for Word Representation, considers global word co-occurrence statistics to generate embeddings.

• FastText: Enriches Word2Vec by considering subword information, useful for handling out-of-vocabulary words.

• BERT: ...read more

The three lines of defense refer to the three levels of risk management in an organization.

• First line of defense: Operational management and control

• Second line of defense: Risk management and compliance functions

• Third line of defense: Internal audit function

Utility bills, primary market, secured loan, collateral, mortgage are financial terms.

• Utility bills are bills for services such as electricity, gas, water, etc.

• Primary market is where new securities are issued and sold for the first time.

• Secured loan is a loan that is backed by collateral.

• Collateral is an asset that is pledged as security for a loan.

• Mortgage is a loan used to purchase a property, where the property itself serves as collateral.

Balance sheet, income statement and cash flow statement are interrelated financial statements that provide a comprehensive view of a company's financial health.

• Balance sheet shows a company's assets, liabilities and equity at a specific point in time.

• Income statement shows a company's revenue, expenses and net income over a period of time.

• Cash flow statement shows a company's cash inflows and outflows over a period of time.

• Changes in the balance sheet accounts affect the cash...read more

Triggers are database objects that automatically perform an action when a specified event occurs on a particular table or view.

• Triggers are used to enforce business rules, validate data, and maintain data integrity.

• They can be created using SQL commands like CREATE TRIGGER.

• Triggers can be set to execute before or after INSERT, UPDATE, or DELETE operations on a table.

• An example of using triggers is to automatically update a 'last_modified' timestamp column whenever a row is up...read more

The interview questions cover topics such as macro quoting functions, creating macro variables, date functions, situational scenario-based questions, and automatic variables in SAS.

• Macro quoting functions in SAS allow for the creation of macro variables with special characters.

• Macro variables can be created in the data step using the %LET statement or by using the CALL SYMPUTX routine.

• The date functions INTCK() and INTNX() are used to calculate the interval between two dates ...read more

Financial statements are documents that provide information about a company's financial performance and position.

• Financial statements include the income statement, balance sheet, and cash flow statement.

• The income statement shows a company's revenues and expenses over a period of time, resulting in net income or loss.

• The balance sheet provides a snapshot of a company's assets, liabilities, and equity at a specific point in time.

• The cash flow statement shows how cash is genera...read more

Valuation methods include DCF, comparable company analysis, precedent transactions, and LBO analysis.

• Discounted Cash Flow (DCF) analysis involves forecasting future cash flows and discounting them back to present value.

• Comparable Company Analysis involves comparing the target company to similar publicly traded companies to determine valuation multiples.

• Precedent Transactions Analysis involves looking at past M&A transactions in the same industry to determine valuation multipl...read more

There are three types of cloud: public, private, and hybrid.

• Public cloud is owned and operated by third-party providers, accessible over the internet.

• Private cloud is owned and operated by a single organization, accessible only by authorized users.

• Hybrid cloud is a combination of public and private cloud, allowing organizations to utilize both.

• Examples of public cloud providers include Amazon Web Services, Microsoft Azure, and Google Cloud Platform.

• Examples of private cloud p...read more

The principles of accounting are the basic concepts and guidelines for financial reporting.

• Principle of consistency - using the same accounting methods and procedures from one period to another

• Principle of conservatism - recognizing expenses and liabilities as soon as possible, but delaying the recognition of revenues and assets

• Principle of materiality - only recording information that is significant or material to the financial statements

• Principle of relevance - ensuring tha...read more

Fraud and non-claim analyst deal with detecting and preventing fraudulent activities related to claims. Debit cards are linked to bank accounts for making electronic transactions. Different types of accounts include savings, checking, and money market accounts. Chargeback is a process where a transaction is reversed. There are various types of ATM cards for different uses.

• Fraud and non-claim analysts focus on identifying and preventing fraudulent activities in insurance claim...read more

String builder is faster but not thread-safe, while string buffer is slower but thread-safe.

• String builder is mutable and can be modified without creating a new object

• String buffer is synchronized and can be used in multi-threaded environments

• String builder is preferred for single-threaded environments where performance is critical

• String buffer is preferred for multi-threaded environments where thread safety is important

Designing a shopping cart involves creating a user-friendly interface for customers to add, view, and manage items for purchase.

• Include features such as adding/removing items, viewing total price, and checking out securely.

• Design a visually appealing and intuitive layout for easy navigation.

• Implement functionality for saving items in cart for future visits.

• Consider options for applying discounts or promo codes.

• Ensure compatibility with various devices and browsers for a seaml...read more

To get average in MS Excel, use the AVERAGE function.

• Select the range of cells you want to find the average of.

• Type =AVERAGE( and then select the range of cells.

• Close the parentheses and press Enter.

• The average will be displayed in the cell.

• You can also use the AutoSum button to quickly find the average of a column or row.

Mortgage underwriting is the process of evaluating a borrower's creditworthiness and ability to repay a loan.

• Underwriting involves analyzing financial documents and credit reports

• The underwriter determines the loan amount, interest rate, and terms

• Underwriting is important for minimizing risk for the lender and ensuring the borrower can afford the loan

• Examples of underwriting documents include income statements, tax returns, and bank statements

Prioritize critical features based on impact and risk assessment

• Identify critical features based on impact on core functionality

• Prioritize features with high risk of failure or impact on user experience

• Consider customer feedback and usage data to prioritize features

• Collaborate with stakeholders to determine key features for testing

• Use risk-based testing approach to focus on high-risk areas

Big Data refers to large and complex data sets that cannot be processed using traditional data processing methods. The 4V's of data are Volume, Velocity, Variety, and Veracity.

• Volume: Refers to the amount of data being generated and stored.

• Velocity: Refers to the speed at which data is being generated and processed.

• Variety: Refers to the different types of data being generated, including structured, semi-structured, and unstructured data.

• Veracity: Refers to the accuracy and r...read more

Debt equity ratio is a financial ratio that compares a company's total debt to its total equity. Gross profit is the difference between revenue and cost of goods sold.

• Debt equity ratio = Total debt / Total equity

• It measures the proportion of a company's financing that comes from debt compared to equity

• A high debt equity ratio indicates higher financial risk

• Gross profit = Revenue - Cost of goods sold

• It represents the amount of money a company has left over after deducting the ...read more

Arrays store elements in contiguous memory locations, while linked lists store elements in nodes with pointers to the next node.

• Arrays have fixed size, while linked lists can dynamically grow or shrink.

• Accessing elements in arrays is faster (O(1)), while in linked lists it is slower (O(n)).

• Inserting or deleting elements in arrays can be inefficient, as it may require shifting elements, while in linked lists it can be done in constant time by adjusting pointers.

Data management involves the process of collecting, storing, processing, and maintaining data, while data governance is the overall management of the availability, usability, integrity, and security of data.

• Data management focuses on the technical aspects of handling data, while data governance focuses on the policies, procedures, and standards for managing data

• Data management involves tasks such as data entry, data cleaning, data integration, and data storage, while data gov...read more

I use discounted cash flow method for valuation. My day involves analyzing financial data, creating reports, and presenting findings to management.

• Analyze financial data to identify trends and patterns

• Create financial models to forecast future performance

• Use discounted cash flow method to value assets and investments

• Prepare reports and presentations to communicate findings to management

• Collaborate with other departments to gather data and insights

• Stay up-to-date with industry...read more

I have 5 years of experience with cloud computing.

• 5 years of hands-on experience working with AWS, Azure, and Google Cloud Platform

• Implemented cloud-based solutions for scalability and cost-efficiency

• Managed cloud infrastructure, including virtual machines, storage, and networking

• Utilized cloud services like EC2, S3, RDS, and Lambda for various projects

Microservice pattern is an architectural style where an application is composed of small, independent services that communicate with each other.

• Each service is responsible for a specific task or functionality

• Services communicate with each other through APIs

• Each service can be developed, deployed, and scaled independently

• Allows for greater flexibility, agility, and resilience

• Examples include Netflix, Amazon, and Uber

RDBMS stands for Relational Database Management System. Char is fixed length while Varchar is variable length in SQL.

• RDBMS stands for Relational Database Management System

• Char data type in SQL is fixed length

• Varchar data type in SQL is variable length

• Char is faster for fixed length data, Varchar is more flexible for variable length data

Different types of joins in SQL include INNER JOIN, LEFT JOIN, RIGHT JOIN, and FULL JOIN. TRUNCATE is faster than DELETE as it removes all rows at once.

• Types of joins: INNER JOIN, LEFT JOIN, RIGHT JOIN, FULL JOIN

• TRUNCATE: removes all rows from a table without logging individual row deletions

• DELETE: removes specific rows from a table and logs each row deletion

• TRUNCATE is faster than DELETE as it does not log individual row deletions

Counterparty risk is specific to the risk of default by the other party in a financial transaction, while credit risk is the risk of default by a borrower.

• Counterparty risk is the risk that the other party in a financial transaction will not fulfill their obligations.

• Credit risk is the risk that a borrower will not repay a loan or debt.

• Counterparty risk is more specific to financial transactions between two parties, while credit risk can apply to a wider range of lending scen...read more

Cloud deployment models are different ways in which cloud computing resources are provisioned and made available to users.

• Public Cloud: Services are provided over the internet and shared among multiple users.

• Private Cloud: Services are dedicated to a single organization and hosted on-premises or by a third-party provider.

• Hybrid Cloud: Combination of public and private clouds, allowing data and applications to be shared between them.

• Community Cloud: Shared infrastructure among...read more

Freezing panes in MS Excel

• Select the cell below and to the right of the rows and columns you want to freeze

• Click on the 'View' tab

• Click on 'Freeze Panes'

• Select the option that suits your needs, such as 'Freeze Panes', 'Freeze Top Row', or 'Freeze First Column'

• To unfreeze, click on 'View' tab and select 'Unfreeze Panes'

I have worked on various types of payment files including ACH, wire transfers, and credit card transactions.

• ACH (Automated Clearing House) files

• Wire transfer files

• Credit card transaction files

Big data system distribution for storage and compute involves partitioning data across multiple nodes for efficient processing.

• Data is partitioned across multiple nodes to distribute storage and processing load.

• Hadoop Distributed File System (HDFS) is commonly used for storage distribution.

• Apache Spark utilizes a cluster computing framework for distributed computing.

• Data locality is important to minimize data transfer between nodes.

• Load balancing techniques are used to evenly...read more

An interface is a contract that specifies the methods that a class must implement. Abstract class is a class that cannot be instantiated.

• An interface can only have abstract methods and constants, while an abstract class can have both abstract and non-abstract methods.

• A class can implement multiple interfaces, but can only inherit from one abstract class.

• Interfaces are used to achieve abstraction and provide loose coupling, while abstract classes are used to provide a common b...read more

Microservices can increase complexity and require more resources to manage.

• Microservices can lead to increased network latency and communication overhead.

• Managing multiple services can be more complex than managing a monolithic application.

• Microservices require more resources to manage, including additional servers and monitoring tools.

• Testing and debugging can be more difficult in a distributed system.

• Security can be more challenging in a microservices architecture.

• Service d...read more

Tata Motors and Mahindra are two major players in the Indian automotive industry, with Tata Motors being larger in terms of revenue and market share.

• Tata Motors is a larger company in terms of revenue and market share compared to Mahindra.

• Tata Motors has a more diverse product portfolio including passenger vehicles, commercial vehicles, and electric vehicles, while Mahindra is known for its SUVs and tractors.

• Both companies have a global presence, with Tata Motors owning Jagua...read more

React Hooks are functions that let you use state and other React features without writing a class.

• React Hooks were introduced in React 16.8 to allow functional components to have state and lifecycle methods.

• They allow you to reuse stateful logic across multiple components without changing the component hierarchy.

• Some commonly used React Hooks are useState, useEffect, useContext, and useReducer.

• Example: useState hook allows you to add state to a functional component like a cla...read more

Virtual DOM is a lightweight copy of the actual DOM used for efficient updates in web development.

• Virtual DOM is a concept used in frameworks like React to improve performance by minimizing actual DOM updates.

• Changes are first made to the virtual DOM, then compared with the actual DOM to only update what has changed.

• This process helps reduce the number of manipulations needed on the real DOM, leading to faster rendering.

Wells Fargo is a multinational financial services company headquartered in San Francisco, California.

• Founded in 1852

• Offers banking, investment, and mortgage services

• One of the largest banks in the United States

• Has faced controversy and legal issues in recent years

Prioritizing a new requirement in the middle of a sprint involves evaluating impact, discussing with team, adjusting sprint plan if necessary.

• Evaluate the impact of the new requirement on current sprint goals and timeline

• Discuss the new requirement with the team to understand feasibility and potential adjustments needed

• Adjust the sprint plan if necessary, considering trade-offs and impact on overall project timeline

• Communicate changes to stakeholders and ensure alignment on r...read more

My contribution extends to overseeing all operational aspects, ensuring efficiency and effectiveness.

• Overseeing day-to-day operations to ensure smooth functioning

• Implementing strategies to improve efficiency and reduce costs

• Managing resources effectively to meet operational goals

• Collaborating with other departments to streamline processes

• Identifying areas for improvement and implementing solutions

• Ensuring compliance with regulations and standards

Traffic lights use a set sequence of colors to control the flow of vehicles and pedestrians.

• Traffic lights use red, yellow, and green lights to indicate when vehicles and pedestrians should stop, slow down, or go.

• The sequence of colors is typically red, yellow, green, and then back to red.

• Different traffic lights may have different timings for each color depending on the traffic flow and pedestrian activity.

• Traffic lights may also have sensors to detect the presence of vehicl...read more

I would facilitate open communication, clarify expectations, and work towards a mutually beneficial solution.

• Encourage open communication between audit and process owners to understand each other's perspectives

• Clarify roles, responsibilities, and expectations to avoid misunderstandings

• Seek common ground and work towards a mutually beneficial solution

• Mediate discussions and facilitate compromise if necessary

Query to delete null values in Oracle

• Use the DELETE statement with the IS NULL condition

• Specify the table name and column name in the WHERE clause

• Commit the changes after executing the query

Use string manipulation to efficiently extract numbers before the decimal point from a list of decimal numbers.

• Split each decimal number by the decimal point and extract the number before it

• Use regular expressions to match and extract numbers before the decimal point

• Iterate through the list and extract numbers using string manipulation functions

Catboost handles categorical features by encoding them using target statistics and optimizing the tree structure during training.

• Catboost automatically handles categorical features without the need for one-hot encoding

• It encodes categorical features using target statistics like mean target value of each category

• Catboost optimizes the tree structure during training to handle categorical features efficiently

I have experience in implementing saga design patterns and designing saga solutions.

• Saga design pattern is used to manage long-lived transactions across microservices.

• It involves breaking down a transaction into smaller steps or events.

• Each step is handled by a separate microservice.

• If a step fails, the saga coordinator rolls back the previous steps.

• I have implemented saga design patterns using tools like Apache Kafka and RabbitMQ.

Wholesale banking deals with large institutions and corporate clients, while retail banking focuses on individual customers.

• Wholesale banking involves providing services to large businesses, institutions, and government agencies.

• Retail banking focuses on providing services to individual customers, such as personal loans, mortgages, and savings accounts.

• Wholesale banking typically involves higher transaction volumes and larger loan amounts compared to retail banking.

• Examples o...read more

Functional components are simpler, stateless, and use hooks. Class components have lifecycle methods and state management.

• Functional components are simpler and easier to read/write.

• Class components have lifecycle methods like componentDidMount, componentDidUpdate, etc.

• Functional components use hooks for state management and side effects.

• Class components use this keyword for accessing props and state.

• Example: Functional component - const MyComponent = () => { return

  Hello Worl...read more

SOLID design principles are a set of five principles to help developers create more maintainable and scalable software.

• S - Single Responsibility Principle: A class should have only one reason to change.

• O - Open/Closed Principle: Classes should be open for extension but closed for modification.

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

• I - Interface Segregation Prin...read more

Delete, drop, and truncate are SQL commands used to remove data from a table.

• DELETE command removes specific rows from a table

• DROP command removes an entire table from the database

• TRUNCATE command removes all rows from a table

I am a detail-oriented accountant with experience in financial analysis and reporting. The golden rule of accounting is to debit the receiver and credit the giver. Bank reconciliation statement is a process of matching the balances in a company's accounting records to the corresponding information on a bank statement.

• Golden rule of accounting: Debit the receiver, credit the giver

• Bank reconciliation statement: Matching company's accounting records with bank statement

• Experience...read more

The data analysis process for an employee salary table involves data cleaning, exploration, visualization, and modeling.

• Start by cleaning the data to remove any duplicates, missing values, or outliers.

• Explore the data by calculating basic statistics like mean, median, and standard deviation.

• Visualize the data using histograms, box plots, or scatter plots to identify patterns or trends.

• Perform statistical modeling to analyze factors affecting employee salaries, such as experie...read more

Waits are used to synchronize test execution with the application, while window handling is used to interact with multiple browser windows.

• Waits in Selenium are used to wait for certain conditions to be met before proceeding with the test execution.

• There are different types of waits in Selenium, such as implicit wait, explicit wait, and fluent wait.

• Window handling in Selenium is used to interact with multiple browser windows or tabs.

• It allows switching between windows, openin...read more

Documents required for loan process

• Proof of identity (e.g. passport, driver's license)

• Proof of income (e.g. pay stubs, tax returns)

• Credit report

• Bank statements

• Loan application form

• Collateral documents (if applicable)

Basel III helps banks avoid crisis by strengthening capital requirements, improving risk management, and promoting transparency.

• Basel III increases the minimum capital requirements for banks, ensuring they have enough capital to absorb potential losses.

• It introduces new liquidity requirements to prevent banks from relying too heavily on short-term funding sources.

• Basel III enhances risk management practices by requiring banks to conduct stress tests and hold more capital for ...read more