Global Logica Software Technologies Front end Developer Interview Questions and Answers

Q1. What is bridge? What is the new architecture?
Ans. 
Bridge is a structural design pattern that decouples an abstraction from its implementation. The new architecture refers to modern design patterns and technologies used in software development.
• Bridge pattern allows the client code to work with different implementations of an interface independently.

• The new architecture in front end development may include concepts like component-based architecture, state management lib...read more
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Q2. How will you optimize a react native app
Ans. 
Optimizing a React Native app involves reducing bundle size, improving performance, and enhancing user experience.
• Use code splitting to reduce initial load time

• Optimize images and assets for smaller file sizes

• Implement lazy loading for components that are not immediately visible

• Minimize the use of third-party libraries and only include necessary dependencies

• Utilize performance monitoring tools like React Native Perform...read more
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Q3. What is context API
Ans. 
Context API is a feature in React that allows sharing data between components without having to pass props through every level of the component tree.
• Context API provides a way to pass data through the component tree without having to pass props down manually at every level.

• It is useful for sharing global data such as themes, user authentication, or language preferences.

• Context API consists of three main parts: Provider...read more
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Q4. 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.
• Variable declarations are hoisted to the top of their scope, but not their initializations.

• Function declarations are fully hoisted, including their definitions.

• Hoisting can lead to unexpected behavior if not understood properly.
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Was asked to create a UI component keeping in mind scalability and reuseability.

General discussion about resume and projects, and then some basic JS coding questions like implement throttling and memoization.

Q1. Discussion about past experiences and projects
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Q2. Why you want to leave current job.
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Q3. Expectations from the role and company
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Q1. Basic JS & React JS question
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Q1. Advance level of JS and React related question and coding skills test as well.
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Q1. What are your salary expectations?
Ans. 
I am open to discussing salary based on the responsibilities and requirements of the position.
• I am flexible and open to negotiation.

• I am looking for a fair and competitive salary.

• I am more interested in the overall compensation package rather than a specific number.

• I would like to be compensated based on my skills, experience, and the value I can bring to the company.
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It was on hackerrank, it was given to solve 3 questions in JS along with quiz on js concepts

It was a js fundamental round, was asked similar JS problems asked in the hackerrank test

Q1. Describe your favourite/last project
Ans. 
Developed a responsive e-commerce website for a local boutique selling handmade jewelry
• Used HTML, CSS, and JavaScript to create a visually appealing and user-friendly interface

• Implemented a product carousel to showcase different jewelry collections

• Integrated a payment gateway for secure online transactions
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Q2. How to keep your updated in tech
Ans. 
Stay updated by regularly reading tech blogs, attending conferences, taking online courses, and networking with other professionals.
• Read tech blogs regularly (e.g. TechCrunch, Mashable)

• Attend tech conferences and workshops

• Take online courses and tutorials (e.g. Udemy, Coursera)

• Network with other professionals in the field (e.g. LinkedIn, Meetup)
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Q3. Do you try every new framework comes in the market
Ans. 
I do not try every new framework that comes in the market, but I do stay updated on the latest trends and evaluate them based on project requirements.
• I prioritize learning frameworks that align with the project needs

• I assess the pros and cons of new frameworks before deciding to use them

• I stay updated on industry trends and experiment with new frameworks in personal projects
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Q4. How will you optimise a code
Ans. 
Optimizing code involves identifying and fixing bottlenecks to improve performance and efficiency.
• Identify and remove unnecessary code or functions

• Use efficient algorithms and data structures

• Minimize network requests and optimize asset loading

• Implement caching mechanisms

• Profile and analyze code performance
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Round duration - 90 mins
Round difficulty - Hard

There were questions related to DP and DFS.

 

Q1. 
Trapping Rain Water Problem Statement
You are given a long type array/list ARR of size N, representing an elevation map. The value ARR[i] denotes the elevation of the ith bar. Your task is to determine th...read more
Ans. 
Calculate the total amount of rainwater that can be trapped between given elevations in an array.
• Iterate through the array and calculate the maximum height on the left and right of each bar.

• Calculate the amount of water that can be trapped at each bar by taking the minimum of the maximum heights on the left and right.

• Sum up the trapped water at each bar to get the total trapped water for the entire array.
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Round duration - 60 mins
Round difficulty - Medium

At first, I was asked about the different projects that I have done so far. We had a detailed discussion on the same.
He also checked my OOP concepts

Q1. Can you describe the process of designing an LRU Cache from scratch during your System Design Round?
Ans. 
Designing an LRU Cache involves implementing a data structure that stores a fixed number of items and removes the least recently used item when full.
• Start by defining the data structure for the cache, typically using a combination of a hashmap and a doubly linked list.

• Implement methods for getting and setting key-value pairs in the cache.

• When a new item is added to the cache, check if it exceeds the maximum capacity. I...read more
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Q2. 
Reverse Linked List Problem Statement
Given a Singly Linked List of integers, your task is to reverse the Linked List by altering the links between the nodes.
Input:
The first line of input is an intege...read more
Ans. 
Reverse a singly linked list by altering the links between nodes.
• Iterate through the linked list and reverse the links between nodes

• Use three pointers to keep track of the current, previous, and next nodes

• Update the links between nodes to reverse the list

• Return the head of the reversed linked list
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Q3. 
Middle of a Linked List
You are given the head node of a singly linked list. Your task is to return a pointer pointing to the middle of the linked list.
If there is an odd number of elements, return the ...read more
Ans. 
Return the middle element of a singly linked list, or the one farther from the head if there are even elements.
• Traverse the linked list with two pointers, one moving twice as fast as the other

• When the fast pointer reaches the end, the slow pointer will be at the middle

• If there are even elements, return the one that is farther from the head node

• Handle edge cases like linked list of size 1 or empty list
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Round duration - 60 mins
Round difficulty - Medium

It is HR + Technical round
asked about the Behavioural questions and how you justify yourself in an argument .questions related to current technology.
They gave me feedback on how well I had performed so far and gave me suggestions on what more can I do to further improve myself.

Online aptitude test with general aptitude questions.

Q1. Basic js, ES6 features, Angular Questions, Node.js Lifecycle, event loop, mongodb questions, some HR questions
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Q1. Basic question on node js and nestjs with experience
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