Peoplefy Infosolutions Interview Questions, Process, and Tips

Key concepts of OOP include encapsulation, inheritance, polymorphism, and abstraction.

• Encapsulation: Bundling data and methods that operate on the data into a single unit (class). Example: Class with private variables and public methods.

• Inheritance: Creating new classes based on existing classes, inheriting their attributes and behaviors. Example: Subclass extending a superclass.

• Polymorphism: Objects of different class...read more

SOLID principles are a set of five design principles in object-oriented programming to make software more maintainable, flexible, and scalable.

• Single Responsibility Principle (SRP) - A class should have only one reason to change.

• Open/Closed Principle (OCP) - Software entities should be open for extension but closed for modification.

• Liskov Substitution Principle (LSP) - Objects of a superclass should be replaceable with...read more

Use time series analysis techniques like ARIMA or Prophet, preprocess data, split into train/test sets, tune hyperparameters, evaluate model performance.

• Preprocess data by handling missing values, outliers, and scaling features

• Split data into training and testing sets to train and evaluate the model

• Use time series analysis techniques like ARIMA, Prophet, or LSTM for building regression models

• Tune hyperparameters using ...read more

The short key for trim in AutoCAD is 'TR'.

• The 'TR' key is used to trim objects in AutoCAD.

• To use the trim command, select the objects you want to trim and press 'TR'.

• You can also access the trim command from the Modify menu or the ribbon interface.

The short key for trim in AutoCAD is TR.

• The short key for trim in AutoCAD is TR.

• It is used to trim or remove unwanted parts of lines, arcs, or polylines.

• To use the trim command, press TR and then select the objects to trim.

• You can also use a fence or a crossing selection to trim multiple objects at once.

• After selecting the objects, press Enter to complete the trim operation.