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10+ Terralogic Software Solutions Interview Questions and Answers

Updated 13 Aug 2024

Q1. What is React Js? Virtual Dom? d/ w state and props? Hooks? D/w class nd functional Components? Life Cycle Components? Mounting? Routing? And soo on

Ans.

React Js is a JavaScript library for building user interfaces.

  • Virtual DOM is a lightweight copy of the actual DOM used for faster rendering.

  • State and props are used to manage data in React components.

  • Hooks are functions that allow you to use state and other React features in functional components.

  • Class and functional components are two ways to create React components.

  • Life cycle components are methods that are called at different stages of a component's life cycle.

  • Mounting is ...read more

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Q2. What is JavaScript? ES6? Promise? Async await?

Ans.

JavaScript is a scripting language used for web development. ES6 is the latest version with new features. Promise and Async await are used for asynchronous programming.

  • JavaScript is a high-level, interpreted language used for web development.

  • ES6 is the latest version of JavaScript with new features like arrow functions, let and const keywords, and template literals.

  • Promise is a way to handle asynchronous operations in JavaScript. It represents a value that may not be availabl...read more

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Q3. What is temporal dead zone ?

Ans.

Temporal dead zone is the period between entering scope and being able to access a variable.

  • Occurs when trying to access a variable before it has been declared

  • Caused by hoisting in JavaScript

  • Results in a ReferenceError

  • Example: const x = 10; console.log(x); // ReferenceError: Cannot access 'x' before initialization

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Q4. How does Angular work ?

Ans.

Angular is a front-end web application framework that allows developers to build dynamic single-page applications.

  • Angular uses TypeScript for building applications.

  • It follows the MVC (Model-View-Controller) architecture.

  • Angular provides two-way data binding, which means changes in the model are automatically reflected in the view and vice versa.

  • It uses directives to extend HTML with new attributes and tags.

  • Angular has a dependency injection system to make components more reus...read more

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Q5. What is hoisting ?

Ans.

Hoisting is a JavaScript mechanism where variable and function declarations are moved to the top of their containing scope during compilation.

  • In JavaScript, variable and function declarations are hoisted to the top of their scope.

  • This means that you can use a variable or function before it is declared.

  • However, only the declarations are hoisted, not the initializations.

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Q6. Remove duplicate elements from an array

Ans.

Remove duplicate elements from an array of strings

  • Create a new empty array to store unique elements

  • Iterate through the original array and check if element already exists in the new array

  • If not, add the element to the new array

  • Return the new array with unique elements

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Q7. Difference between list and map

Ans.

List is an ordered collection of elements, while map is a collection of key-value pairs.

  • List maintains the order of elements, while map does not guarantee any specific order.

  • List allows duplicate elements, while map does not allow duplicate keys.

  • In a list, elements are accessed by their index, while in a map, elements are accessed by their keys.

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Q8. Find the largest number

Ans.

Iterate through the array to find the largest number

  • Iterate through the array and compare each element with a variable to store the largest number

  • Update the variable if a larger number is found

  • Return the largest number at the end

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Q9. Design a network

Ans.

Design a network for a small office with multiple departments

  • Identify the network requirements for each department

  • Consider the number of users in each department

  • Choose appropriate network devices such as routers, switches, and access points

  • Implement VLANs to separate department traffic

  • Ensure network security measures are in place

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Q10. Print prime numbers

Ans.

A program to print prime numbers

  • Iterate through numbers and check if they are prime

  • Use a nested loop to check divisibility by numbers less than the current number

  • Print the number if it is prime

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Q11. Write a program for binary search

Ans.

Program for binary search

  • Binary search is an efficient algorithm to search for an element in a sorted array

  • It works by repeatedly dividing the search space in half

  • If the middle element is the target, the search is successful

  • If the target is smaller, search the left half; if larger, search the right half

  • Continue dividing until the target is found or the search space is empty

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Q12. Print duplicates program

Ans.

Program to print duplicates in an array of strings

  • Iterate through the array and store each element in a HashMap with its frequency

  • Iterate through the HashMap and print elements with frequency greater than 1

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