10+ Interview Questions and Answers

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

• OOP focuses on creating objects that interact with each other to solve complex problems.

• Objects have attributes (data) and methods (functions) that can manipulate the data.

• Encapsulation, inheritance, and polymorphism are key principles of OOP.

• Example: In a car simulation program, a 'Car' object can have attributes like speed and color, and methods like accele...read more

Swap L1 and L5 in a list

• Create a temporary variable to store the value of L1

• Assign the value of L5 to L1

• Assign the value of the temporary variable to L5

Moving Average is a statistical technique used to analyze data points by creating a series of averages of different subsets of the full data set.

• Moving Average helps in smoothing out fluctuations in data to identify trends over time.

• It is calculated by taking the average of a specific number of data points within a defined window.

• For example, a 3-day moving average for stock prices would be the average of the stock prices over the past 3 days.

• Moving Average is commonly used i...read more

Classes are blueprints for creating objects in object-oriented programming.

• Classes define the properties and behaviors of objects

• Objects are instances of classes

• Classes can inherit properties and behaviors from other classes

• Classes can have constructors to initialize objects

• Classes can have methods to perform actions

Decorators in Python are functions that modify the behavior of other functions.

• Decorators are denoted by the @ symbol followed by the decorator function name.

• They allow you to add functionality to an existing function without modifying its code.

• Common use cases include logging, timing, and authentication.

• Example: @decorator_function def function_to_decorate(): pass

Functions are blocks of code that perform a specific task and can be reused multiple times in a program.

• Functions help in organizing code and making it more modular.

• They can take input parameters and return output values.

• Functions can be called multiple times from different parts of the program.

• Examples: summing two numbers, finding the maximum value in a list.

Design a flight booking system with flight inventory and funds

• Create a database to store flight inventory including flight details, availability, and pricing

• Implement a user interface for customers to search for flights, select seats, and make bookings

• Incorporate a payment gateway for customers to pay for their bookings

• Include a feature for managing funds, tracking payments, and generating invoices

• Implement a notification system for confirming bookings and sending updates to ...read more

Strategies for optimizing costs in cloud computing include rightsizing resources, using reserved instances, leveraging spot instances, and implementing automation.

• Rightsizing resources to match workload demands can help avoid over-provisioning and unnecessary costs.

• Utilizing reserved instances for predictable workloads can provide significant cost savings compared to on-demand pricing.

• Leveraging spot instances for non-critical workloads can further reduce costs, although they...read more

Probe types in Kubernetes deployment are used to determine the health of containers.

• Kubernetes supports two types of probes: liveness and readiness probes.

• Liveness probes are used to determine if a container is running properly.

• Readiness probes are used to determine if a container is ready to serve traffic.

• Probes can be configured with different parameters like initial delay, timeout, and period.

• Examples of probe configurations include HTTP, TCP, and exec probes.

The sales cycle involves prospecting, qualifying leads, presenting solutions, handling objections, closing deals, and following up with customers.

• Prospecting: Identifying potential customers and reaching out to them.

• Qualifying leads: Determining if the leads are a good fit for the product or service.

• Presenting solutions: Demonstrating how the product or service can meet the customer's needs.

• Handling objections: Addressing any concerns or doubts the customer may have.

• Closing d...read more