Ranibari LP School Interview Questions and Answers

Intangible assets are non-physical assets that have no intrinsic value but can generate revenue for a company.

• Examples include patents, trademarks, copyrights, and goodwill.

• They are not physical in nature and cannot be touched or seen.

• They are recorded on a company's balance sheet and can be bought, sold, or licensed.

• Their value is determined by their ability to generate future economic benefits.

• They are important for ...read more

Outstanding salaries represent wages owed to employees that have not yet been paid, requiring a specific journal entry.

• Accrual Accounting: Outstanding salaries are recorded as liabilities, reflecting the obligation to pay employees for work done.

• Journal Entry: The typical journal entry for outstanding salaries is a debit to the Salary Expense account and a credit to the Salaries Payable account.

• Example Entry: If $5,000...read more

Article tag is used for independent content, while section tag is used for grouping related content.

• Article tag is used for standalone content that can be distributed and reused independently.

• Section tag is used to group related content together within a document.

• Article tag is typically used for blog posts, news articles, etc.

• Section tag is commonly used for dividing content into different sections like chapters, head...read more

Typescript offers static typing, better tooling, and improved scalability over JavaScript.

• Static typing catches errors at compile time instead of runtime

• Better tooling with features like code completion and refactoring

• Improved scalability with support for interfaces and classes

• Can be transpiled to JavaScript for browser compatibility

• Used by popular frameworks like Angular and React Native

var, let and const are all used for variable declaration in JavaScript.

• var is function-scoped and can be redeclared and updated.

• let is block-scoped and can be updated but not redeclared.

• const is block-scoped and cannot be updated or redeclared.

• Use const for values that won't change, let for values that will change, and var for legacy code.

• Example: var x = 10; let y = 'hello'; const z = true;

Variable hoisting is a behavior in JavaScript where variable declarations are moved to the top of their scope.

• Variable declarations are processed before any code is executed.

• Variables declared with 'var' are hoisted to the top of their scope.

• This can lead to unexpected behavior if variables are used before they are declared.

• Example: console.log(x); // undefined var x = 5;

• Example: function example() { console.log(...read more

Application state is managed through various techniques such as Redux, Context API, and local state.

• Redux is a popular state management library that allows for a centralized store of application state.

• Context API is a built-in React feature that allows for sharing state between components without the need for props drilling.

• Local state can be used for managing state within a single component.

• Other techniques include us...read more

Mutable data types can be changed after creation, while immutable data types cannot be changed.

• Mutable data types include lists, dictionaries, and sets.

• Immutable data types include strings, tuples, and frozensets.

• Changing a mutable data type will modify the original object, while changing an immutable data type will create a new object.

• Example: changing a list by appending an element will modify the original list, whil...read more

Call by value and call by reference are two ways of passing arguments to a function.

• Call by value passes a copy of the argument's value to the function.

• Call by reference passes a reference to the argument's memory location to the function.

• Call by value is used for simple data types like int, float, etc.

• Call by reference is used for complex data types like arrays, structures, etc.

Function to normalise a decimal number without using math functions.

• Extract the integer and decimal parts of the number

• Count the number of digits in the decimal part

• Multiply the decimal part by 10^number of decimal digits to convert it to an integer

• Add the integer and converted decimal parts and return the result

Component lifecycle hooks are methods that allow you to handle events during the lifecycle of a component in React.

• There are three phases in the lifecycle of a component: Mounting, Updating, and Unmounting.

• Mounting phase: constructor(), static getDerivedStateFromProps(), render(), componentDidMount()

• Updating phase: static getDerivedStateFromProps(), shouldComponentUpdate(), render(), getSnapshotBeforeUpdate(), componen...read more

Components interact with each other through inputs, outputs, and services.

• Components can pass data to child components through inputs.

• Components can emit events to parent components through outputs.

• Components can share data and functionality through services.

• Components can also communicate through the @ViewChild and @ContentChild decorators.

• Example: A parent component passes data to a child component through an input p...read more

To export Apex code coverage, use the Salesforce Developer Console or a third-party tool.

• Open the Developer Console and navigate to the 'Tests' tab.

• Select the classes you want to export coverage for and click 'Export' in the 'Code Coverage' section.

• Alternatively, use a third-party tool like Illuminated Cloud or Gearset to export coverage data.

• Coverage data can be exported in various formats, including CSV and XML.

SOQL can be used to query Apex code coverage data.

• Use the ApexCodeCoverage object to query code coverage data

• Filter by class or trigger name using the Name field

• Aggregate data using GROUP BY clauses

• Join with other objects to get additional information

Python interpreter is a program that executes Python code.

• It reads Python code and converts it into machine-readable code

• It executes the code line by line

• It also provides a command-line interface for interactive programming

• Examples: CPython, Jython, IronPython

Python was developed by Guido van Rossum in the late 1980s.

• Guido van Rossum started working on Python in December 1989.

• Python's design philosophy emphasizes code readability and ease of use.

• Python is an interpreted, high-level, general-purpose programming language.

• Python's popularity has been steadily increasing over the years.

• Python is open-source and has a large community of developers contributing to its development...read more

PEP8 is a style guide for Python code.

• PEP8 provides guidelines for formatting, naming, and organizing Python code.

• It covers topics such as indentation, line length, variable naming, and function and class definitions.

• Adhering to PEP8 can improve code readability and maintainability.

• Tools such as Flake8 and PyLint can be used to check code against PEP8 standards.

A class is a blueprint for creating objects that have similar properties and behaviors.

• A class is a user-defined data type that encapsulates data and functions.

• It provides a way to organize and structure code.

• Objects are instances of a class.

• Classes can inherit properties and behaviors from other classes.

• Example: A class 'Car' can have properties like 'color', 'model', and behaviors like 'start', 'stop'.

An object is an instance of a class that encapsulates data and behavior.

• Objects are created from classes

• They have attributes (data) and methods (behavior)

• Objects can interact with each other through method calls

• Examples include a car object with attributes like make, model, and color, and methods like start and stop

• Another example is a person object with attributes like name and age, and methods like walk and talk

Inheritance is a mechanism in object-oriented programming where a new class is created by inheriting properties of an existing class.

• Inheritance allows code reuse and promotes code organization.

• The existing class is called the parent or superclass, and the new class is called the child or subclass.

• The child class inherits all the properties and methods of the parent class and can also add its own unique properties and ...read more

Multiple inheritance is the ability of a class to inherit properties and behavior from multiple parent classes.

• It allows a class to inherit from more than one parent class.

• It can lead to the diamond problem where a class inherits from two classes that have a common base class.

• Languages like C++ support multiple inheritance while others like Java do not.

• Example: A class can inherit properties from both a 'Vehicle' class...read more

Data abstraction is the process of hiding implementation details and showing only the necessary information to the user.

• Abstraction is achieved through abstract classes and interfaces

• It helps in reducing complexity and increasing efficiency

• Example: A car dashboard shows only necessary information like speed, fuel level, etc. and hides the internal workings of the car

• Abstraction is one of the four fundamental concepts o...read more