60+ Fractal Analytics Interview Questions and Answers

The most important thing in an airhostess girl is excellent customer service skills and the ability to ensure passenger safety and comfort.

• Excellent customer service skills

• Passenger safety and comfort

• Effective communication and interpersonal skills

• Knowledge of emergency procedures

• Ability to handle difficult situations calmly

• Professional appearance and grooming

• Language proficiency

• Teamwork and collaboration

Cabin crew make passengers feel more welcoming and comfortable through their actions and service.

• Cabin crew greet passengers with a warm smile and friendly attitude.

• They assist passengers with their luggage and help them find their seats.

• Cabin crew provide clear and concise safety instructions to ensure passengers feel secure.

• They offer refreshments and snacks to keep passengers hydrated and satisfied.

• Cabin crew address any concerns or requests promptly and professionally.

• The...read more

The most important temple in Assam is the Kamakhya Temple.

• The Kamakhya Temple is located in Guwahati, Assam.

• It is dedicated to the goddess Kamakhya, who is believed to be the embodiment of female power.

• The temple is one of the oldest and most revered Shakti Peethas in India.

• It attracts a large number of devotees and tourists from all over the world.

• The temple complex also includes several other smaller temples and shrines.

• The annual Ambubachi Mela, a major festival celebrated...read more

Regression models can be evaluated using R squared and adjusted R squared to measure the goodness of fit.

• R squared measures the proportion of the variance in the dependent variable that is predictable from the independent variables.

• Adjusted R squared adjusts for the number of predictors in the model, providing a more accurate measure of goodness of fit.

• R squared can be artificially inflated by adding more predictors, while adjusted R squared penalizes for adding unnecessary v...read more

Explanation of bagging, boosting, ensemble models, handling overfitting, and precision-recall-ROC curve.

• Bagging (Bootstrap Aggregating) involves training multiple models on different subsets of the training data and combining their predictions through averaging or voting.

• Boosting involves training multiple models sequentially, with each model correcting the errors of its predecessor.

• Ensemble models combine multiple individual models to improve overall performance and generali...read more

The famous river in Assam is the Brahmaputra River.

• The Brahmaputra River is one of the major rivers in Asia.

• It originates in the Himalayas and flows through Tibet, India, and Bangladesh.

• The river is known for its strong currents and is an important waterway for transportation and irrigation.

• It is also home to diverse flora and fauna, including the endangered Gangetic dolphin.

• The Brahmaputra River is a popular tourist attraction, offering opportunities for river cruises and wa...read more

Decision trees are a popular machine learning algorithm used for classification and regression tasks.

• Decision trees are a flowchart-like structure where each internal node represents a feature or attribute, each branch represents a decision rule, and each leaf node represents the outcome.

• To select parent and child nodes, the algorithm calculates the best split at each node based on criteria like Gini impurity or information gain.

• Gini impurity is a measure of how often a rando...read more

Correlation measures the strength and direction of a relationship between two variables. A correlation of 0 indicates no linear relationship.

• Correlation measures the degree to which two variables move in relation to each other. It ranges from -1 to 1.

• A correlation of 0 means there is no linear relationship between the variables. They are not related in a linear fashion.

• For example, if the correlation between hours of study and exam scores is 0, it means there is no linear rel...read more

It is difficult to predict which airport will have the most satisfied passengers in 2023.

• Passenger satisfaction can be influenced by various factors such as airport facilities, staff behavior, and flight delays.

• Airports can improve passenger satisfaction by providing better amenities, efficient check-in and security processes, and timely flight updates.

• Passenger feedback and surveys can help airports identify areas for improvement and make necessary changes.

• Factors such as ai...read more

Adam Smith is considered the father of economics.

• Adam Smith, a Scottish economist, is widely regarded as the father of economics.

• He is known for his book 'The Wealth of Nations' published in 1776.

• Smith's ideas laid the foundation for modern economic theory and the concept of free markets.

• He emphasized the importance of division of labor, self-interest, and the invisible hand of the market.

• Smith's work greatly influenced the field of economics and shaped economic policies worl...read more

Creating dictionary in Python from 2 lists, using window functions and joins in SQL

• To create a dictionary in Python from 2 lists and key values, you can use the zip() function

• Example: dict(zip(keys_list, values_list))

• For SQL window functions like Rank(), you can use the OVER() clause

• Example: SELECT column1, column2, RANK() OVER(ORDER BY column3) AS rank_column FROM table_name

• For SQL joins, you can use INNER JOIN, LEFT JOIN, RIGHT JOIN, or FULL JOIN depending on the requiremen...read more

The capital of India is New Delhi.

• The capital city of India is New Delhi.

• New Delhi is located in the northern part of India.

• New Delhi is the seat of the Indian government and houses important political and administrative institutions.

• The city is known for its rich history, diverse culture, and iconic landmarks like the Red Fort and India Gate.

The longest river in India is the Ganges, also known as the Ganga.

• The Ganges is a trans-boundary river that flows through India and Bangladesh.

• It is considered sacred by Hindus and is worshipped as the goddess Ganga.

• The river originates from the Gangotri Glacier in the state of Uttarakhand and flows through several states before emptying into the Bay of Bengal.

• The Ganges is not only the longest river in India but also one of the most important rivers in terms of cultural, eco...read more

I will handle the customer with patience, empathy, and effective communication.

• Listen actively to the customer's concerns and needs

• Acknowledge their frustration and apologize for any inconvenience

• Offer solutions or alternatives to resolve the issue

• Follow up with the customer to ensure their satisfaction

• Maintain a positive and professional attitude throughout the interaction

The computer was invented by multiple individuals, including Charles Babbage and Alan Turing.

• The concept of a programmable machine was first proposed by Charles Babbage in the early 19th century.

• Alan Turing is considered the father of theoretical computer science and artificial intelligence.

• The first electronic digital computer, called the ENIAC, was developed by John W. Mauchly and J. Presper Eckert in the 1940s.

• The modern computer as we know it today has evolved through con...read more

Regularization techniques help prevent overfitting in machine learning models. Ridge regression adds L2 regularization, while Lasso regression adds L1 regularization.

• Regularization techniques help prevent overfitting by adding a penalty term to the loss function.

• Ridge regression adds the squared magnitude of coefficients as penalty term (L2 regularization).

• Lasso regression adds the absolute magnitude of coefficients as penalty term (L1 regularization).

• Ridge regression tends t...read more

Baggage allowance refers to the amount of luggage a passenger is allowed to bring on a flight. SSR stands for Special Service Request, WHCR stands for wheelchair request, and round trip refers to a journey to a destination and back again.

• Baggage allowance is the weight or number of bags allowed for free on a flight.

• SSR (Special Service Request) includes requests for special meals, seating arrangements, etc.

• WHCR (Wheelchair Request) is a request for assistance with a wheelchai...read more

The longest airport place name in India is Maharana Pratap International Airport, Udaipur.

• The airport is located in Udaipur, a city in the state of Rajasthan.

• It is named after Maharana Pratap, a legendary king of Mewar.

• The airport has both domestic and international terminals.

• It is operated by the Airport Authority of India (AAI).

Customer care is providing excellent service to customers, while cabin crew are trained professionals who ensure the safety and comfort of passengers during a flight.

• Customer care involves anticipating and meeting the needs of customers

• Cabin crew are responsible for safety demonstrations, serving food and drinks, and responding to emergencies

• Both customer care and cabin crew require excellent communication and interpersonal skills

• Examples of customer care include greeting cus...read more

DGCA stands for Directorate General of Civil Aviation. They are the regulatory body for civil aviation in India.

• DGCA stands for Directorate General of Civil Aviation

• They are the regulatory body for civil aviation in India

• Responsible for regulation of air transport services, safety oversight, and airworthiness standards

• Issues licenses to pilots, engineers, and air traffic controllers

The busiest airport in India is Indira Gandhi International Airport located in New Delhi.

• Indira Gandhi International Airport handles over 70 million passengers annually

• It is the largest airport in India in terms of passenger and cargo traffic

• The airport serves as a hub for several airlines including Air India, IndiGo, and Vistara

Design considerations for building an API

• Define clear and consistent naming conventions for endpoints and parameters

• Use versioning to manage changes and updates without breaking existing clients

• Implement proper authentication and authorization mechanisms to secure the API

• Design for scalability and performance by considering caching, rate limiting, and pagination

• Provide comprehensive documentation to guide developers on how to use the API effectively

The smallest airport in India is the Keshod Airport located in Gujarat.

• Keshod Airport has a single runway and serves only domestic flights.

• It is located in the Junagadh district of Gujarat.

• The airport is operated by the Airports Authority of India.

• Keshod Airport has a capacity of handling up to 50 passengers at a time.

Yes, we can add an object base class as a key in a hash map.

• In Java, any object can be used as a key in a HashMap as long as it overrides the equals() and hashCode() methods.

• The object's hashCode() method is used to determine the bucket where the key-value pair will be stored.

• The equals() method is used to compare keys for equality.

• If two keys are equal according to the equals() method, their corresponding values will be overwritten in the map.

Java 8 code to filter a list of names and get a new list of strings containing names with 's'.

• Use Java 8 Stream API to filter the list of names

• Use the filter() method to check if each name contains 's'

• Collect the filtered names into a new list using the collect() method

I manage customer complaints on arrival by actively listening, empathizing, and resolving their issues promptly.

• Actively listen to the customer's complaint without interrupting

• Empathize with the customer and acknowledge their frustration

• Apologize for any inconvenience caused and assure them that their complaint will be addressed

• Resolve the issue promptly by offering a solution or escalating it to the appropriate department

• Follow up with the customer to ensure their satisfacti...read more

CAMO stands for Computer-Aided Manufacturing Optimization. It is a process that uses computer software to optimize manufacturing processes.

• CAMO uses computer software to analyze and optimize manufacturing processes

• It helps in reducing production costs and improving efficiency

• CAMO can be used in various industries such as automotive, aerospace, and electronics

• Examples of CAMO software include Siemens NX, Autodesk Fusion 360, and SolidWorks CAM

Program to calculate sum of series, manipulate string, and manipulate employees' table

• For calculating sum of series, use a loop to iterate through the given series and add each element to a running total

• For manipulating a string, use string manipulation functions like substring, replace, or concatenate to modify the given string

• For manipulating an employees' table in SQL, use SQL queries like UPDATE, INSERT, or DELETE to modify the table based on the given requirements

I have always been fascinated by the mechanics of flight and the thrill of being up in the air.

• Passion for aviation since childhood

• Fascination with the mechanics of flight

• Love for the thrill of being up in the air

• Desire to travel and explore new places

• Interest in the technical aspects of aircraft

Customer service is the assistance and support provided to customers before, during, and after their purchase of a product or service.

• Customer service involves addressing customer inquiries, resolving issues, and providing guidance.

• It focuses on ensuring customer satisfaction and building positive relationships.

• Examples include answering phone calls, responding to emails, and assisting customers in person.

• Customer service can also involve handling returns, processing payments...read more

GDS software stands for Global Distribution System software, used in the travel industry to provide real-time availability and pricing for flights, hotels, car rentals, etc.

• GDS software is used by travel agents and online travel agencies to access and book travel products from multiple suppliers.

• It helps in comparing prices, availability, and making reservations for flights, hotels, car rentals, etc.

• Examples of GDS software include Amadeus, Sabre, Travelport, and Galileo.

The airlines refer to companies that provide air transportation services for passengers and cargo.

• Airlines operate flights to various destinations around the world.

• They offer different classes of service such as economy, business, and first class.

• Examples of airlines include Delta, United, Emirates, and British Airways.

Vistara Airlines is a premium full-service airline in India known for its excellent service and comfortable flying experience.

• Vistara Airlines is a joint venture between Tata Sons and Singapore Airlines.

• It is known for its luxurious cabins, delicious meals, and attentive staff.

• Vistara offers a range of services including premium economy class and business class.

• The airline has won several awards for its service and hospitality.

• Vistara operates domestic and international fligh...read more

Vistara Airlines operates in various locations across India and internationally.

• Vistara Airlines has domestic flights to major cities in India such as Delhi, Mumbai, Bangalore, etc.

• Internationally, Vistara Airlines flies to destinations like Singapore, Dubai, Bangkok, etc.

• Vistara Airlines has hubs at major airports like Indira Gandhi International Airport in Delhi and Chhatrapati Shivaji Maharaj International Airport in Mumbai.

To sell a top chart product, focus on its unique features, benefits, and customer satisfaction.

• Highlight the product's unique features and benefits

• Use customer testimonials and reviews to showcase satisfaction

• Offer promotions or discounts to incentivize purchases

• Partner with influencers or industry experts to promote the product

• Utilize social media and targeted advertising to reach potential customers

I have extensive experience and knowledge in consumer matters.

• I have worked in consumer advocacy roles for over 10 years

• I have conducted research on consumer behavior and preferences

• I have provided consulting services to companies on improving customer satisfaction

• I am familiar with consumer protection laws and regulations

• I have successfully resolved customer complaints and disputes

Idempotency in REST APIs ensures that multiple identical requests have the same effect as a single request.

• Idempotency means that the result of a successful request is the same regardless of how many times it is made.

• GET and PUT requests are typically idempotent, while POST requests are not.

• Using unique identifiers like UUIDs in requests can help ensure idempotency.

• Idempotency is important for ensuring data consistency and preventing unintended side effects.

I have driven various cars including sedans, SUVs, and trucks.

• I have experience driving sedans like Honda Civic and Toyota Camry.

• I have also driven SUVs like Ford Explorer and Jeep Grand Cherokee.

• I have driven trucks like Ford F-150 and Chevrolet Silverado.

• I am familiar with both automatic and manual transmissions.

An itinerary is a detailed plan or schedule of a journey or trip.

• It includes information such as dates, times, locations, and activities.

• It helps travelers stay organized and on track during their trip.

• Examples: flight itinerary, vacation itinerary, business trip itinerary.

Safety precautions are crucial in aircraft maintenance. Specific tasks require specific precautions.

• Always follow the manufacturer's instructions and guidelines

• Use proper personal protective equipment (PPE)

• Ensure proper lockout/tagout procedures are followed

• Double-check all work before closing up

• Be aware of potential hazards and take necessary precautions

• Communicate with other team members to ensure everyone is on the same page

• Properly dispose of hazardous materials and waste...read more

My favorite fruits are strawberries and mangoes, and my favorite colors are blue and green.

• I love the sweetness of strawberries and the tropical flavor of mangoes.

• Blue and green are calming colors that remind me of nature.

• I enjoy wearing clothes and decorating my home with these colors.

Airlines play a crucial role in connecting people and goods across the world.

• Airlines facilitate global trade and commerce by transporting goods and people across the world.

• They provide employment opportunities to millions of people worldwide.

• Airlines contribute to the growth of tourism industry by making travel accessible and affordable.

• They also play a vital role in emergency situations by transporting medical supplies and personnel to affected areas.

• Airlines have a signifi...read more

Regularization is a technique used to prevent overfitting in machine learning models by adding a penalty term to the loss function.

• Regularization helps to reduce the complexity of the model by penalizing large coefficients.

• It adds a penalty term to the loss function, such as L1 (Lasso) or L2 (Ridge) regularization.

• Regularization helps to improve the generalization of the model by discouraging overfitting.

• Examples of regularization techniques include Ridge regression, Lasso re...read more

LaunchEffect is a function in Jetpack Compose that allows you to trigger side effects when a composable is first launched.

• LaunchEffect is used to perform actions such as fetching data from a network or initializing a resource when a composable is first displayed.

• It is similar to the useEffect hook in React.

• Example: launchEffect { fetchData() }

Food and beverage service is a crucial aspect of the hospitality industry, providing guests with a memorable dining experience.

• Food and beverage service is an essential part of the hospitality industry

• It involves providing guests with a memorable dining experience

• This includes menu planning, food preparation, and serving

• Good food and beverage service can lead to repeat business and positive reviews

• Examples include fine dining restaurants, cafes, and hotel room service

I applied for the Reservation Manager position because of my passion for customer service and experience in managing reservations.

• Passion for customer service

• Experience in managing reservations

• Interest in the hospitality industry

A customer wanted a product that could help her sleep better at night.

• The customer was struggling with insomnia and had tried various remedies without success.

• We recommended our sleep aid product, which is made with natural ingredients and has been clinically proven to improve sleep quality.

• The customer was hesitant at first, but after trying the product for a few nights, she noticed a significant improvement in her sleep and felt more rested in the morning.

• She became a loyal...read more

Abstraction focuses on hiding unnecessary details, while encapsulation bundles data and methods together.

• Abstraction is about providing a simplified view of an object or system.

• Encapsulation is about bundling data and methods within a class or object.

• Abstraction hides unnecessary details, while encapsulation protects data from direct access.

• Abstraction allows users to interact with complex systems using simpler interfaces.

• Encapsulation promotes data integrity and prevents una...read more

The @Controller annotation is used to define a controller class in Spring MVC, while the @RestController annotation is used to define a RESTful controller class.

• The @Controller annotation is used for traditional MVC applications, where the response can be a view or a JSON/XML response.

• The @RestController annotation is used for building RESTful web services, where the response is always in JSON/XML format.

• The @RestController annotation is a combination of @Controller and @Resp...read more

CAAM stands for Corrective Action and Preventive Action. It is a systematic approach to identifying, investigating, and resolving quality issues.

• CAAM helps in addressing quality issues by identifying root causes and implementing corrective actions to prevent recurrence.

• It involves documenting the problem, investigating the cause, implementing corrective actions, and monitoring the effectiveness of the actions taken.

• CAAM is an essential part of quality management systems like ...read more

AI stands for artificial intelligence, which is the simulation of human intelligence processes by machines.

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

• Examples of AI applications include virtual assistants like Siri and Alexa, self-driving cars, and recommendation systems like Netflix's algorithm.

• Machine learning, a subset of AI, involves training algorithms to learn from data and make predictions or decisions.

• Dee...read more

Air India is a government-owned airline that operates both domestic and international flights.

• Air India operates flights to over 100 destinations worldwide.

• It has a fleet of over 120 aircraft, including Boeing and Airbus planes.

• Air India is the third-largest airline in India, after IndiGo and SpiceJet.

• The airline has faced financial difficulties in recent years and has been in talks of privatization.

The function of a gear box is to transmit power from the engine to the wheels by providing different gear ratios for different driving conditions.

• Transmit power from engine to wheels

• Provide different gear ratios for different driving conditions

• Increase or decrease speed and torque

• Allow the vehicle to operate efficiently at various speeds

• Can be manual or automatic

• Examples: manual transmission, automatic transmission

Event loop is a mechanism in Node.js that allows non-blocking I/O operations to be performed asynchronously.

• Event loop continuously checks the call stack for any functions that need to be executed.

• It offloads I/O operations to the system kernel and executes callbacks when the operations are completed.

• Event loop ensures that Node.js remains responsive and can handle multiple requests concurrently.

There are approximately 20 airlines operating in India.

• There are both domestic and international airlines in India.

• Some of the major airlines in India include Air India, IndiGo, SpiceJet, and Vistara.

• The number of airlines may vary over time as new airlines enter the market or existing ones cease operations.

There are a total of 137 airports in India.

• India has 137 operational airports.

• These airports are spread across various cities and states in the country.

• Some of the major airports in India include Indira Gandhi International Airport in Delhi, Chhatrapati Shivaji Maharaj International Airport in Mumbai, and Kempegowda International Airport in Bengaluru.

ViewModel is a class that is responsible for preparing and managing data for an activity or fragment.

• ViewModel helps in separating the UI data from the UI controller logic.

• It survives configuration changes such as screen rotations.

• ViewModel is part of the Android Architecture Components.

• Example: ViewModel can hold data retrieved from a database and provide it to the UI.

Reverse a given string

• Use built-in functions like reverse() or slice() in Python

• Iterate through the string in reverse order and append characters to a new string

• Convert the string to an array of characters, reverse the array, and join it back into a string

Padding is extra space added to the edges of an element, often used to create visual separation or alignment.

• Padding is used in CSS to control the spacing between the content and the border of an element.

• It can be specified in various units like pixels, percentages, or em.

• Padding is applied to all four sides of an element by default, but can be customized for individual sides using shorthand properties.

• Example: padding: 10px; or padding: 5px 10px 15px 20px; (top, right, botto...read more

A promise is an object representing the eventual completion or failure of an asynchronous operation.

• Promises are used to handle asynchronous operations in JavaScript.

• They can be in one of three states: pending, fulfilled, or rejected.

• Promises can be chained together using .then() method.

• They help avoid callback hell and make code more readable and maintainable.

The event loop is a mechanism in Node.js that allows for non-blocking I/O operations by handling asynchronous tasks.

• Handles asynchronous tasks by executing callback functions when I/O operations are completed

• Ensures that the Node.js application remains responsive by not blocking the main thread

• Uses a single-threaded model to process multiple tasks concurrently

The first pilot in India was J.R.D. Tata.

• J.R.D. Tata became the first licensed pilot in India in 1929.

• He founded India's first commercial airline, Tata Airlines (now Air India), in 1932.

• Tata played a significant role in the development of civil aviation in India.

• He was awarded the Bharat Ratna, India's highest civilian award, in 1992.

Landing gear is a system of wheels, skids, or floats that support an aircraft during landing and takeoff.

• Landing gear helps an aircraft to safely land and take off by providing support and stability.

• There are different types of landing gear, such as tricycle gear (one wheel in the front and two in the back) and tailwheel gear (two wheels in the front and one in the back).

• Some aircraft, like helicopters, have skids instead of wheels for landing gear.

• Floatplanes have landing ge...read more

The role of cabin crew is to ensure the safety and comfort of passengers during flights.

• Ensuring the safety of passengers by conducting pre-flight safety checks and demonstrations

• Providing excellent customer service by assisting passengers with their needs

• Handling in-flight emergencies and medical situations

• Serving food and beverages to passengers

• Maintaining cleanliness and order in the cabin

Security in Spring Boot involves implementing various measures to protect the application from vulnerabilities and attacks.

• Use Spring Security to handle authentication and authorization

• Implement secure communication using HTTPS

• Avoid security vulnerabilities like SQL injection and cross-site scripting (XSS)

• Use encryption for sensitive data storage and transmission

• Regularly update dependencies to patch security vulnerabilities

JavaScript async allows non-blocking code execution by using Promises or async/await syntax.

• Async functions return a Promise object.

• Promises represent a value that may be available now, in the future, or never.

• Async/await syntax simplifies asynchronous code by using keywords async and await.

• Callbacks can also be used for handling asynchronous operations.