50+ Aveek Educational and Welfare Trust Interview Questions and Answers

Customer service focuses on providing assistance and guidance to customers, while customer support focuses on resolving specific issues or problems.

• Customer service involves helping customers with general inquiries, providing information, and offering solutions to their problems.

• Customer support is more specialized and involves addressing specific issues or problems that customers may encounter.

• Customer service is proactive and focuses on building relationships with customers...read more

Inorganic results are paid ads in search engines while organic results are the natural listings.

• Inorganic results are paid advertisements that appear at the top or bottom of search engine results pages (SERPs).

• Organic results are the natural listings that appear in SERPs based on relevance to the search query.

• Inorganic results are marked as 'Ad' while organic results are not.

• Examples of inorganic results include Google Ads, Bing Ads, and social media ads.

• Examples of organic r...read more

Digital marketing is the practice of promoting products or services using digital channels and technologies.

• Digital marketing involves various strategies such as search engine optimization (SEO), social media marketing, email marketing, and content marketing.

• It aims to reach and engage with a target audience through online platforms like websites, social media platforms, search engines, and mobile apps.

• Digital marketing allows businesses to measure and analyze their marketing...read more

A credit card is a payment card issued by a financial institution that allows the cardholder to borrow funds for purchases.

• Credit cards are a convenient form of payment that allows users to make purchases and pay for them later.

• They provide a line of credit, which is essentially a loan from the issuing bank.

• Cardholders can use credit cards to make purchases online, in stores, or over the phone.

• Credit cards often come with rewards programs, such as cashback or travel points.

• CI...read more

Soft skills are crucial in customer dealing business as they help in building rapport, resolving conflicts, and ensuring customer satisfaction.

• Soft skills like communication, empathy, and active listening help in understanding customer needs and concerns.

• They also aid in conflict resolution and problem-solving, which are essential in dealing with dissatisfied customers.

• Soft skills like patience and positivity help in maintaining a calm and professional demeanor, even in stres...read more

Charge cards require full payment each month while credit cards allow for carrying a balance.

• Charge cards require full payment each month while credit cards allow for carrying a balance.

• Charge cards typically have higher annual fees and stricter credit requirements.

• Credit cards offer rewards programs and cash back incentives while charge cards do not.

• Examples of charge cards include American Express Platinum and Centurion cards while examples of credit cards include Visa and ...read more

Depreciation is the decrease in value of an asset over time. Journal entries are made to record the depreciation expense.

• Depreciation is a non-cash expense that reduces the value of an asset over its useful life.

• The journal entry for depreciation includes a debit to Depreciation Expense and a credit to Accumulated Depreciation.

• Accumulated Depreciation is a contra asset account that shows the total amount of depreciation taken on an asset.

• For example, if a company purchases a ...read more

VLOOKUP is a function in Excel used to search for a specific value in a table and return a corresponding value.

• Dashboards are visual representations of data that allow users to quickly analyze and make decisions based on the information presented.

• Pivot tables are used to summarize and analyze large amounts of data in a table format.

• HLOOKUP is similar to VLOOKUP, but searches for a value in a row instead of a column.

• VBA (Visual Basic for Applications) is a programming language...read more

SEO stands for Search Engine Optimization. It is the process of optimizing a website to rank higher in search engine results pages.

• SEO involves optimizing website content, structure, and HTML code.

• Keyword research and analysis is a crucial part of SEO.

• Link building and social media marketing can also improve SEO.

• Examples of search engines include Google, Bing, and Yahoo.

• SEO helps businesses increase their online visibility and attract more organic traffic to their website.

SCD Type 2 is a technique used to track historical changes in data over time in a data warehouse.

• SCD Type 2 maintains a separate row for each change in data, with a start and end date.

• It requires a surrogate key to uniquely identify each row.

• Informatica provides a built-in SCD Type 2 transformation to implement this technique.

• Example: tracking changes in customer addresses over time.

Charge cards require full payment each month, while credit cards allow for carrying a balance.

• Charge cards require the full balance to be paid off each month, while credit cards allow for carrying a balance over time.

• Charge cards typically have no pre-set spending limit, while credit cards have a credit limit.

• Charge cards often charge an annual fee, while credit cards may or may not have an annual fee.

• Examples of charge cards include American Express and Diners Club, while ex...read more

Fraud is an intentional act of deception, while a dispute is a disagreement between two parties.

• Fraud involves intentional deception, while disputes arise from disagreements between parties.

• Fraud is a criminal offense, while disputes can be resolved through negotiation or legal means.

• Fraud involves misrepresentation or concealment of information, while disputes involve differences in interpretation or understanding.

• Examples of fraud include identity theft, credit card fraud, ...read more

XGBoost is a popular machine learning algorithm known for its speed and performance in handling large datasets.

• XGBoost stands for eXtreme Gradient Boosting, which is an optimized implementation of gradient boosting.

• It is based on the gradient boosting framework and uses decision trees as base learners.

• XGBoost is known for its speed and performance due to its efficient implementation of parallel processing and tree pruning techniques.

• It is widely used in machine learning compe...read more

Customer service allows me to help people and provide excellent support.

• I enjoy assisting and solving problems for customers.

• I have strong communication and interpersonal skills.

• I find satisfaction in providing excellent service and exceeding customer expectations.

• I believe in building positive relationships with customers.

• Customer service allows me to contribute to the success of a company by ensuring customer satisfaction.

• Example: I once helped a frustrated customer resolve...read more

One of the challenges faced while making payments is the risk of fraud and security breaches.

• Fraudulent transactions

• Stolen credit card information

• Phishing scams

• Identity theft

• Lack of secure payment options

• Technical glitches

• Insufficient funds

Depreciation is the decrease in value of tangible assets over time, while amortization is the decrease in value of intangible assets over time.

• Depreciation applies to tangible assets like buildings, machinery, and vehicles.

• Amortization applies to intangible assets like patents, copyrights, and trademarks.

• Depreciation is calculated based on the useful life of the asset.

• Amortization is calculated based on the estimated useful life of the intangible asset.

• Both depreciation and a...read more

We use a continuous deployment strategy with automated testing and manual approval.

• We have a Jenkins pipeline set up for continuous integration and deployment.

• Our code is automatically tested using unit tests and integration tests.

• Once the tests pass, the code is deployed to a staging environment for manual testing.

• If the staging tests pass, the code is deployed to production.

• We also have rollback procedures in place in case of issues.

• We use Docker containers to ensure consis...read more

Blue box values refer to a set of predefined values used in data analysis and decision-making processes.

• Blue box values are predetermined values that are used as benchmarks or thresholds in analytical models.

• These values are often based on industry standards, best practices, or regulatory requirements.

• Blue box values help analysts make informed decisions by comparing data against these predefined values.

• For example, in financial analysis, blue box values can include threshold...read more

I would listen to their concerns, empathize with their situation, and offer a solution to their problem.

• Remain calm and professional

• Listen actively to their concerns

• Empathize with their situation

• Offer a solution to their problem

• If necessary, escalate the issue to a supervisor

Spring Boot is an extension of Spring Framework that simplifies the development of Spring-based applications.

• Spring Boot provides a pre-configured environment for building applications, while Spring Framework requires more configuration.

• Spring Boot includes an embedded server, while Spring Framework requires an external server.

• Spring Boot provides a variety of starter dependencies to quickly add functionality, while Spring Framework requires manual dependency management.

• Sprin...read more

Mathematics involved in recognizing speech data

• Speech recognition involves statistical modeling and pattern recognition techniques

• Mathematical algorithms are used to convert speech signals into digital representations

• Signal processing techniques like Fourier analysis and wavelet transforms are used

• Hidden Markov Models (HMMs) are commonly used for speech recognition

• Statistical language models are used to improve recognition accuracy

Evaluation metrics of a classification model include accuracy, precision, recall, F1 score, and area under the ROC curve.

• Accuracy: measures the overall correctness of the model's predictions

• Precision: measures the proportion of true positive predictions among all positive predictions

• Recall: measures the proportion of true positive predictions among all actual positive instances

• F1 score: combines precision and recall into a single metric

• Area under the ROC curve: measures the m...read more

Financial due diligence involves analyzing financial statements to write a credit report.

• Start by gathering all relevant financial statements and documents

• Analyze the income statement, balance sheet, and cash flow statement for key financial ratios and trends

• Assess the company's financial health, profitability, liquidity, and solvency

• Write a detailed credit report summarizing your findings and recommendations

• Include an executive summary, analysis of financial performance, and...read more

American Express earns money primarily through fees charged to merchants and cardholders, interest on outstanding balances, and investment income.

• Merchant fees: Amex charges merchants a fee for accepting their cards as payment, typically higher than other credit card companies.

• Cardholder fees: Amex charges annual fees, late fees, and foreign transaction fees to cardholders.

• Interest income: Amex earns interest on outstanding balances from cardholders who carry a balance from m...read more

I prioritise work based on urgency, importance, and deadlines.

• I assess the urgency of each task and prioritize accordingly

• I consider the importance of each task and its impact on the project

• I take into account any deadlines and ensure they are met

• I communicate with team members and stakeholders to ensure alignment on priorities

• I regularly review and adjust priorities as needed

I would highlight the ease of use and comfort of the pen for someone with limited mobility.

• Emphasize the ergonomic design of the pen for comfortable grip

• Highlight the smooth writing experience for effortless use

• Demonstrate how the pen can be easily operated with one hand

I handle major outages in my Apps by following a structured incident response process.

• Immediately assess the impact and severity of the outage

• Communicate with stakeholders and provide regular updates

• Engage the necessary technical teams to troubleshoot and resolve the issue

• Conduct a post-mortem analysis to identify root causes and prevent future outages

To convince the customer to buy the product, focus on highlighting its benefits, addressing their needs, building trust, and offering incentives.

• Highlight the unique features and benefits of the product

• Address the customer's needs and pain points

• Build trust by providing testimonials or case studies

• Offer incentives such as discounts, free trials, or guarantees

• Provide excellent customer service and support

Introducing the revolutionary product that will change your life!

• Our product is the solution to all your problems

• It is affordable and easy to use

• It has been tested and proven to be effective

• Don't miss out on this life-changing opportunity

SQL query using CASE WHEN THEN statement

• Use CASE WHEN statement to create conditional logic in SQL queries

• Syntax: SELECT column_name, CASE WHEN condition1 THEN result1 WHEN condition2 THEN result2 ELSE result3 END AS new_column_name FROM table_name

• Example: SELECT name, CASE WHEN age < 18 THEN 'Minor' ELSE 'Adult' END AS age_group FROM customers

Amex is a financial services company known for its credit cards and charge cards.

• Amex stands for American Express.

• It was founded in 1850 and is headquartered in New York City.

• Amex offers a variety of credit cards, including rewards cards and travel cards.

• It also offers charge cards, which require the balance to be paid in full each month.

• Amex is known for its customer service and perks, such as airport lounge access and travel insurance.

American Express generates revenue from various sources including card fees, interest income, and merchant fees.

• Card fees from annual fees, late fees, and foreign transaction fees

• Interest income from carrying balances on credit cards

• Merchant fees from transactions made with American Express cards

Query param is used to pass parameters in the URL query string, while path param is used to define parameters in the URL path itself.

• Query param is specified after the '?' in the URL, like '?param=value'

• Path param is specified in the URL path itself, like '/{param}'

• Query params are optional and can be used for filtering or sorting data

• Path params are used to define variables in the URL path, like IDs or names

Use a file copy command to copy one file to another

• Use the 'cp' command in Unix/Linux systems

• Syntax: cp source_file destination_file

• Example: cp file1.txt file2.txt

American financial markets refer to the various exchanges and platforms where securities are bought and sold in the United States.

• American financial markets include major stock exchanges like the New York Stock Exchange (NYSE) and the NASDAQ.

• They also encompass bond markets, commodity markets, and derivative markets.

• Regulatory bodies like the Securities and Exchange Commission (SEC) oversee these markets to ensure fair trading practices.

• Investors can trade a wide range of fin...read more

Inner join combines only matching rows from two tables, while outer join includes all rows from one table and only matching rows from the other.

• Inner join only includes rows that have matching values in both tables

• Outer join includes all rows from one table and only matching rows from the other

• Example: Inner join would return only customers who have made a purchase, while outer join would return all customers with their purchases if available

Convince customers to pay more by highlighting the value of the product/service, offering discounts for early payment, and providing flexible payment options.

• Highlight the value of the product/service and how it meets the customer's needs

• Offer discounts for early payment to incentivize prompt payment

• Provide flexible payment options such as installment plans or payment extensions

• Emphasize the benefits of paying more, such as access to premium features or exclusive offers

NPs are numerical values used to measure the performance of a process or system.

• NPs stand for Numerical Performance

• They are used to measure the efficiency and effectiveness of a process or system

• Calculation of NPs involves defining the desired outcome, measuring the actual outcome, and comparing the two

• Examples of NPs include customer satisfaction scores, defect rates, and cycle time

• NPs can be used to identify areas for improvement and track progress over time

A dispute is a disagreement or argument between two or more parties over a particular issue.

• Disputes can arise in various settings such as personal, professional, legal, or political.

• They can be resolved through negotiation, mediation, arbitration, or litigation.

• Examples of disputes include contract disputes, property disputes, employment disputes, and family disputes.

Debugging and optimizing code involves identifying and fixing errors and improving performance.

• Use debugging tools like breakpoints, print statements, and logging to identify issues

• Analyze code for inefficiencies and refactor where necessary

• Optimize algorithms and data structures for better performance

• Profile code to identify bottlenecks and optimize critical sections

• Test changes to ensure they improve performance without introducing new bugs

Abstract class can have both abstract and non-abstract methods, while interface can only have abstract methods.

• Abstract class can have constructors, fields, and methods, while interface cannot have any of these.

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

• Abstract classes are used to provide a common base for subclasses, while interfaces are used to define a contract for classes to implement.

• Example: Abstract class 'Animal' with abstract m...read more

Bug life cycle is the process of identifying, reporting, fixing, retesting, and closing a software bug.

• Bug identification: Bug is identified by QA engineer during testing.

• Bug reporting: QA engineer reports the bug with detailed information.

• Bug fixing: Developer fixes the bug based on the reported details.

• Bug retesting: QA engineer retests the fixed bug to ensure it is resolved.

• Bug closing: Once the bug is confirmed fixed, it is closed.

By identifying potential leads, building relationships, understanding customer needs, and offering solutions.

• Identify potential leads through networking, cold calling, and referrals.

• Build relationships with customers by providing excellent customer service and follow-up.

• Understand customer needs by asking probing questions and actively listening.

• Offer solutions that meet the customer's needs and provide value.

• Follow up with customers to ensure satisfaction and secure repeat b...read more

Arrays have fixed size, while ArrayLists can dynamically resize. ArrayLists are part of Java Collections framework.

• Arrays have a fixed size, while ArrayLists can dynamically resize.

• Arrays can hold primitive data types and objects, while ArrayLists can only hold objects.

• Arrays use square brackets [] for declaration, while ArrayLists use angle brackets <>.

• Arrays are faster than ArrayLists for accessing elements directly by index.

• Example: String[] names = new String[5]; ArrayLis...read more

Designing a scalable system involves considering factors like load balancing, horizontal scaling, and fault tolerance.

• Utilize load balancing to distribute traffic evenly across servers.

• Implement horizontal scaling by adding more servers to handle increased load.

• Ensure fault tolerance by designing for redundancy and failover mechanisms.

• Use caching and database sharding to improve performance and scalability.

• Consider microservices architecture for better scalability and maintai...read more

Query to find duplicate records in a database table

• Use GROUP BY clause with HAVING COUNT() function to identify duplicate records

• Select columns to display duplicate records

• Example: SELECT column1, column2, COUNT(*) FROM table_name GROUP BY column1, column2 HAVING COUNT(*) > 1

Error codes are used to identify and communicate specific issues encountered during API calls.

• Error codes should be descriptive and provide information about the issue encountered.

• Use standard HTTP status codes for common errors (e.g. 404 for not found, 500 for internal server error).

• Include additional error details in the response body for more specific information.

• Handle errors gracefully in the client code to provide meaningful feedback to users.

Optimizing SQL Joins involves using proper indexing, limiting the result set, and avoiding unnecessary joins.

• Use indexes on columns involved in join conditions to improve performance

• Limit the result set by using WHERE clause to filter out unnecessary rows before joining

• Avoid unnecessary joins by only joining the tables that are needed for the query

Optimizing performance involves setting clear goals, providing feedback, offering training and development opportunities, and fostering a positive work environment.

• Set clear goals and expectations for employees

• Provide regular feedback and recognition for good performance

• Offer training and development opportunities to help employees improve their skills

• Create a positive work environment that promotes collaboration and communication

• Implement performance management systems to tr...read more

Top risks in P2P process include fraud, errors, compliance issues, and lack of control.

• Fraudulent activities by vendors or employees

• Errors in data entry or processing leading to incorrect payments

• Non-compliance with regulations and policies

• Lack of control over the entire procure-to-pay process

SQL query to join tables based on a common key

• Use JOIN keyword to combine rows from two or more tables based on a related column between them

• Specify the columns to be joined in the ON clause

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

Java 8 introduced new features for working with threads, such as CompletableFuture and parallel streams.

• Java 8 introduced CompletableFuture class for asynchronous programming.

• Parallel streams in Java 8 allow for easy parallelization of operations on collections.

• New methods like `join()` and `thenApply()` were added to the Thread class in Java 8.

Metrics are quantifiable measures used to track and assess the performance of a product or process.

• Metrics provide objective data for evaluating success or identifying areas for improvement

• Common metrics include customer satisfaction, revenue growth, and time to market

• Metrics should be specific, measurable, achievable, relevant, and time-bound (SMART)

• Examples of metrics in product development include customer retention rate, feature adoption rate, and defect density