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Limestone Digital Interview Questions, Process, and Tips
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1 interview found
I applied via LinkedIn and was interviewed in Feb 2024. There were 3 interview rounds.
(3 Questions)
- Q1. How many years of experience with Node.js do you have?
- Ans.
I have 5 years of experience working with Node.js in various projects and environments.
5 years of hands-on experience with Node.js
Developed multiple backend applications using Node.js
Familiar with popular Node.js frameworks like Express.js
Experience in optimizing performance and scalability of Node.js applications
Worked on integrating Node.js with databases like MongoDB and MySQL
- Q2. Do you have experience with PostgreSQL?
- Ans.
Yes, I have experience with PostgreSQL.
I have worked on multiple projects where PostgreSQL was used as the database.
I am proficient in writing complex SQL queries and optimizing database performance.
I have experience in setting up and maintaining PostgreSQL databases.
I have used PostgreSQL in conjunction with Node.js for backend development.
- Q3. Do you have experience with GraphQL?
- Ans.
Yes, I have experience with GraphQL.
I have worked on implementing GraphQL APIs in various projects.
I am familiar with creating schemas, resolvers, and queries in GraphQL.
I have used tools like Apollo Server and GraphQL Playground for development.
(6 Questions)
- Q1. What is a closure in Javascript?
- Ans.
A closure in Javascript is a function that has access to its own scope, as well as the outer function's scope.
A closure allows a function to access variables from an outer function even after the outer function has finished executing.
Closures are commonly used to create private variables and functions in Javascript.
Example: function outerFunction() { let outerVar = 'I am outer'; return function innerFunction() { consol
- Q2. What is event loop?
- Ans.
Event loop is a mechanism in Node.js that allows non-blocking I/O operations to be performed asynchronously.
Event loop is responsible for handling asynchronous operations in Node.js.
It allows Node.js to perform multiple operations concurrently without blocking the execution.
Event loop continuously checks the event queue for new events and executes them in a non-blocking manner.
Example: When a file is being read asynchr...
- Q3. 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, meaning they can be called before they are declared.
Hoisting can lead to unexpected behavior if not understood properly.
- Q4. How event loop works?
- Ans.
Event loop is a mechanism in Node.js that allows non-blocking I/O operations to be performed asynchronously.
Event loop continuously checks the call stack for any functions that need to be executed.
If the call stack is empty, event loop checks the callback queue for any pending tasks.
Event loop moves tasks from the callback queue to the call stack for execution.
This allows Node.js to handle multiple I/O operations concu
- Q5. 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 is declared
Caused by hoisting in JavaScript
Example: accessing a let or const variable before its declaration will result in a ReferenceError
- Q6. Let, const, var differences
(2 Questions)
- Q1. What is a pipe in Node.js
- Ans.
A pipe in Node.js is a mechanism that allows you to connect the output of one stream to the input of another stream.
Pipes are used to read data from a readable stream and write it to a writable stream.
They are created using the pipe() method.
Pipes help in simplifying the code by avoiding nested callbacks.
Example: readableStream.pipe(writableStream);
- Q2. Complete the following program: class MyEventEmitter { /// ..... } const emitterInst = new MyEventEmitter(); emitterInst.on("message", () => console.log("message event | callback 1")); emitterInst.o...
- Ans.
Implement a custom event emitter class in Node.js
Create a class MyEventEmitter with methods 'on' and 'emit'
Store event listeners in an object with event names as keys and arrays of callbacks as values
Implement 'on' method to add event listeners to the object
Implement 'emit' method to trigger all callbacks for a given event
Interview Preparation Tips
- Deep Node.js
- Deep Javascript
Skills evaluated in this interview
Top Limestone Digital Node Js Backend Developer Interview Questions and Answers
Node Js Backend Developer Interview Questions asked at other Companies
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Interview questions from similar companies
I was interviewed in Jan 2025.
A sequence was provided: 4181, 2684, 1597, 987, 610.
first 2 are given and write code for other value calculation using java 8
The second question required writing a reverse of a palindrome using both Java 8 streams. I was able to successfully write both and clear the first round.
(6 Questions)
- Q1. Interviewer was himself not knowing anything as it was walkin drive he was sitting infront of me and checking questions on phone Introduction that he inturrepted in between when I was introducing myself
- Q2. What are the features of Java 17, specifically related to sealed classes, including their syntax and necessity, along with the potential errors encountered when invoking a sealed class?
- Ans.
Java 17 introduces sealed classes to restrict inheritance and improve code maintainability.
Sealed classes are declared using the 'sealed' keyword followed by the permitted subclasses.
Subclasses of a sealed class must be either final or sealed themselves.
Errors may occur when trying to extend a sealed class with a non-permitted subclass.
- Q3. Java 8 feathers stream api, functional interface, Intermittent operator ,Ternary operator, Prediction,Bi predicate. Answered all successfully
- Q4. Draw low level design of implementation of notify me if item is back in stock in a ecommerce application
- Ans.
Implementation of 'notify me if item is back in stock' feature in an ecommerce application
Create a database table to store user notifications for out-of-stock items
Implement a service to check item availability and send notifications to subscribed users
Provide a user interface for users to subscribe to notifications for specific items
- Q5. All design patterns which I know. Asked me to implement adapter pattern on paper
- Q6. Then given a problem that concurrent way perform operation on excell to decrease the response time
Interview Preparation Tips
Functional Testing Senior Consultant Interview Questions & Answers
Deloitte
Anonymous
posted on 4 Feb 2025
I was interviewed in Jan 2025.
(2 Questions)
- Q1. Current CTC, Expected CTC, Notice Period, Skill set
- Q2. Open for Fixed term hire? Open for working from client location at Gurgaon? (3 days from office)
- Ans.
Yes, open for fixed term hire and working from client location at Gurgaon for 3 days a week.
Open for fixed term hire
Willing to work from client location at Gurgaon for 3 days a week
(10 Questions)
- Q1. Introduction, Current role and responsibilities
- Q2. List out the achievements in current project, Tools used
- Ans.
Implemented automated testing using Selenium WebDriver and JUnit in Agile environment
Implemented automated testing framework using Selenium WebDriver
Utilized JUnit for test case management
Worked in Agile environment to ensure continuous testing and integration
- Q3. Pilot vs Beta testing. How can newly developed functionality be tested via automation rather doing it manually?
- Ans.
Pilot testing is done by a small group of users before the full release, while beta testing is done by a larger group of users. Automation testing can be used for regression testing, smoke testing, and performance testing.
Pilot testing involves a small group of users testing the functionality in a controlled environment.
Beta testing involves a larger group of users testing the functionality in a real-world environment.
...
- Q4. Primary key vs Unique key in SQL, Query to find row having last id in sql
- Ans.
Primary key uniquely identifies a record, while unique key allows only one instance of a value in a column. Query to find last id involves using ORDER BY and LIMIT.
Primary key enforces uniqueness and not null constraint on a column
Unique key enforces uniqueness but allows null values
To find row with last id, use ORDER BY id DESC LIMIT 1 in SQL query
- Q5. Explain Software Testing Life Cycle, Defect Life Cycle
- Ans.
Software Testing Life Cycle (STLC) involves planning, designing, executing, and reporting on tests. Defect Life Cycle includes identification, logging, fixing, and retesting defects.
STLC includes requirements analysis, test planning, test design, test execution, and test closure.
Defect Life Cycle involves defect identification, defect logging, defect fixing, defect retesting, and defect closure.
STLC ensures that the so...
- Q6. What's the meaning of 303 status code in API? Put vs Delete method in API What is 3 point estimation technique in Agile?
- Ans.
303 status code in API means 'See Other'. PUT method is used to update data, while DELETE method is used to remove data. 3 point estimation technique in Agile is used to estimate tasks.
303 status code indicates that the resource can be found at a different URI and should be retrieved from there
PUT method is used to update an existing resource in the API
DELETE method is used to remove a resource from the API
3 point esti...
- Q7. What kind of links and labels can be tagged to a bug in jira?
- Ans.
Links and labels that can be tagged to a bug in Jira
Links: related issues, documents, websites
Labels: priority, severity, type, status
- Q8. Have you done shell scripting? What does grep, href commands do in unix?
- Ans.
Shell scripting is a way to automate tasks in Unix/Linux systems. Grep is used to search for specific patterns in text files. Href is not a standard Unix command.
Shell scripting automates tasks by writing scripts in a Unix/Linux environment
Grep command is used to search for specific patterns in text files
Example: grep 'search_pattern' file.txt
Href is not a standard Unix command, it may be a typo or a custom script
- Q9. As a lead, how would you resolve conflict with a team member? As a lead, if you are given plenty of tasks to be completed with in a limited time frame. What would be your approach in doing them?
- Ans.
To resolve conflict with a team member, communication is key. Prioritize understanding, address the issue calmly, find common ground, and work towards a solution together.
Listen to the team member's perspective and concerns
Communicate openly and calmly about the issue
Find common ground and areas of agreement
Work together to find a solution that benefits both parties
Seek input from other team members or a mediator if ne
- Q10. Open for relocating to Bangalore and working from client's office? (with no relocation bonus) Open for working in night / rotational shift? (with no additional compensation) Open for working in long exten...
- Ans.
Open to relocating to Bangalore, working in night shifts, long hours, and 24X7 culture. Goal is to excel in automation testing.
Yes, open to relocating to Bangalore and working from client's office
Yes, open to working in night/rotational shifts
Yes, open to working in long extendable hours or 24X7 culture
Goal is to excel in automation testing
Interview Preparation Tips
I applied via referral in Deloitte USI but to save their referral bonus (I guess), they rejected my profile on the portal and called me through Naukri.com. When I asked them the reason, they said its for a different profile them. however it was for the same one.
Also on their career site, it was not mentioned that role is of fixed term hire (for 2 years), but HR disclosed it later, during the conversation. (another discrepancy)
During my initial conversation, HR clearly said there won't be any night shifts and I would have to work from client's location in Gurgaon office. Although it is 2 year contractual role.
But during my technical interview, the person clearly said to me that I would have to relocate to Bangalore for working from client's secured ODC in office. Also there would be rotational/ night shifts (without any extra pay). Basically they were looking for someone who would devote his 24X7 time to the company for a minimal salary and does not demand for work life balance or weekends off
Neither the HR nor the interviewer opened their web camera during the video call. But HR kept asking me to keep my camera open, even during the waiting time
Selected
I was interviewed in Jan 2025.
To the job programming in a group discussion on a developed to the company
(4 Questions)
- Q1. What was the company results
- Q2. What was the company results
- Q3. To the companie timings and shifts
- Q4. To the companie timings and shifts
(4 Questions)
- Q1. To the invite in a company
- Q2. In a job of Wipro company to the joined
- Q3. In a job of Wipro company to the joined
- Q4. I am joined ina Wipro company
I am joined in a company because to my family problems and my responsibilities
To the solve in a family problems and i joined to the company
I am Bsc complete in a job to the Wipro company are joined
Interview Preparation Tips
Infrastructure Management Consultant Interview Questions & Answers
Infosys
Anonymous
posted on 2 Feb 2025
Selected
(2 Questions)
- Q1. What are your salary expectations?
- Q2. What has been your experience in each of the companies you have worked for?
(4 Questions)
- Q1. Can you tell me about yourself?
- Q2. Could you briefly describe the companies you have worked for?
- Q3. What technologies have you worked with, and what was your role in each?
- Q4. What are some use case studies related to the technologies you have worked with?
Interview Preparation Tips
Selected
I was interviewed in Aug 2024.
(7 Questions)
- Q1. Tell me about yourself?
- Q2. Please explain about your experience ?
- Q3. What is Invoice processing?
- Q4. Credit note means?
- Q5. Tell me about the Critical incident or situation, that you face during the work and how you solve it?
- Q6. Journal entries for : purchase made, purchase on credit?
- Q7. Things need to notice in invoice and verify it before processing?
(4 Questions)
- Q1. Are you will to work at the mentioned location?
- Q2. Excepted salary?
- Q3. Are you ok with the fixed salary package?
- Q4. Are you aware of you roles and responsibilities of the job?
Interview Preparation Tips
Learn more as possible, be updated, learn daily basis.
Selected
I was interviewed in Jan 2025.
(8 Questions)
- Q1. What is a directive in Angular?
- Q2. What are pipes and what are their types?
- Q3. What is the dependency injection (DI) system in Angular?
- Q4. What is an HTTP Interceptor, and can you provide an example of its use?
- Q5. What is the difference between localStorage and sessionStorage?
- Q6. What are design patterns commonly used in Angular?
- Q7. What is the role of route guards in Angular, and what are their types?
- Q8. What are the methods for communication between components?
SAP MM Functional Consultant Interview Questions & Answers
LTIMindtree
Prathamesh Avhad
posted on 1 Feb 2025
Selected
I was interviewed in Aug 2024.
Quantitative aptitude, logical reasoning, verbal ability, technical.
(1 Question)
- Q1. The interview consisted of multiple rounds covering technical, functional, and real-time scenarios in SAP MM. The panel assessed knowledge in Master Data, Procurement, Inventory Management, Invoice Verific...
(1 Question)
- Q1. I participated in my HR interview, during which the interviewer initially requested that I introduce myself. Following that, they asked about my extracurricular activities and family background. Lastly, th...
Interview Preparation Tips
For the technical interview focus on core concepts, real-time scenarios, and problem-solving skills. Be ready to explain SAP MM processes, configurations, and integrations with other modules. Practice scenario-based questions and hands-on troubleshooting.
If asked about relocation express flexibility or provide a logical reason for your preference. Maintain a positive attitude answer confidently, and conclude with gratitude.
Selected
I was interviewed in Aug 2024.
An aptitude is a measure of your ability learn or perform required task and succeed in a particular environment
A coding test evaluates an individuals ability to write , understand and debug code
(6 Questions)
- Q1. What programming languages are you familiar with?
- Q2. What product management system do you like using?
- Q3. What design software do you know?
- Q4. Define the tree data structure?
- Q5. Difference betweenTCP and UPD
- Q6. What scripting language do you know?
Interview Preparation Tips
, follow up after an interview
I was interviewed in Jan 2025.
It was easy, bacis aptitude questions asked in this round
(1 Question)
- Q1. It was a Ai generated communication test, where you have to repeat sentence, basic english question asked, and the ability of communication was cheked. Easy to crack
(3 Questions)
- Q1. This was a technical and hr round
- Q2. What is cloud, vpn, lan, wan? And bacis trouble shooting question
- Q3. What is your hobbies, tell me about your hometown.
Interview Preparation Tips
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