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Treez Software Engineer Interview Questions and Answers
8 Interview questions
Debugging memory leaks involves identifying and fixing areas where memory is not properly released after use.
Use tools like Valgrind or AddressSanitizer to detect memory leaks in your application.
Check for unfreed memory allocations, such as 'malloc' or 'new' without corresponding 'free' or 'delete'.
Review your code for circular references in data structures, which can prevent memory from being released.
Implement ...
EventEmitter is a class in Node.js that allows multiple functions to be attached to an event and triggered when the event is emitted.
EventEmitter is a core module in Node.js that allows communication between objects in a loosely coupled way.
It is used for handling events in Node.js applications.
Listeners can be attached to EventEmitter instances using the 'on' method and events can be emitted using the 'emit' meth...
No, you cannot declare a variable with the same name using var keyword.
Variables declared with var keyword can only be declared once within the same scope
Attempting to declare a variable with the same name using var will result in a syntax error
A Promise is an object representing the eventual completion or failure of an asynchronous operation.
Promises have three states: pending, fulfilled, and rejected.
A fulfilled promise returns a value, while a rejected promise returns an error.
Example: const myPromise = new Promise((resolve, reject) => { /* async operation */ });
You can handle results using .then() for fulfilled and .catch() for rejected promises.
E...
Hoisting is a JavaScript mechanism where variables and function declarations are moved to the top of their containing scope during compilation.
Variables declared with 'var' are hoisted, but their initialization is not. Example: console.log(x); var x = 5; // undefined
Function declarations are fully hoisted, allowing them to be called before their definition. Example: greet(); function greet() { console.log('Hello')...
Request and Response objects are created in Node.js using the 'http' module.
Require the 'http' module in your code
Use the 'http.createServer()' method to create a server
Access the request and response objects in the callback function
let, var, and const are all used to declare variables in JavaScript, but they have different scopes and behaviors.
let: block-scoped variable, can be reassigned
var: function-scoped variable, can be reassigned
const: block-scoped variable, cannot be reassigned, but its properties can be modified
Callback is a function passed as an argument to another function to be executed later. Async await is a syntax for writing asynchronous code in a synchronous manner.
Callback is used in event handling, asynchronous programming, and more.
Async await is a modern way to write asynchronous code in a synchronous style.
Example: Callback - setTimeout function in JavaScript.
Example: Async await - fetching data from an API ...
Treez Software Engineer Interview Experiences
1 interview found
Anonymous
Selected
I applied via Approached by Company and was interviewed before May 2023. There was 1 interview round.
(10 Questions)
- Q1. Explain Promise
- Q2. Explain callback and async await
- Ans.
Callback is a function passed as an argument to another function to be executed later. Async await is a syntax for writing asynchronous code in a synchronous manner.
Callback is used in event handling, asynchronous programming, and more.
Async await is a modern way to write asynchronous code in a synchronous style.
Example: Callback - setTimeout function in JavaScript.
Example: Async await - fetching data from an API in Ja...
- Q3. What is hoisting
- Q4. What is event loop
- Q5. Explain Event Emitter in nodejs
- Ans.
EventEmitter is a class in Node.js that allows multiple functions to be attached to an event and triggered when the event is emitted.
EventEmitter is a core module in Node.js that allows communication between objects in a loosely coupled way.
It is used for handling events in Node.js applications.
Listeners can be attached to EventEmitter instances using the 'on' method and events can be emitted using the 'emit' method.
Ex...
- Q6. How Request and Response object is created in nodejs
- Ans.
Request and Response objects are created in Node.js using the 'http' module.
Require the 'http' module in your code
Use the 'http.createServer()' method to create a server
Access the request and response objects in the callback function
- Q7. Difference between let , var , const
- Q8. Can you declare a variable with same name using var keyword
- Ans.
No, you cannot declare a variable with the same name using var keyword.
Variables declared with var keyword can only be declared once within the same scope
Attempting to declare a variable with the same name using var will result in a syntax error
- Q9. What is middleware
- Q10. How to debug memory leak
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I applied via LinkedIn and was interviewed before Jul 2020. There were 4 interview rounds.
Interview Questionnaire
4 Questions
- Q1. Which technologies your interested to work
- Q2. Question related to Java coding
- Q3. Question from C language
- Q4. Question from AI & ML
Interview Preparation Tips
I applied via Company Website and was interviewed before Oct 2020. There were 3 interview rounds.
Interview Questionnaire
1 Question
- Q1. Tell me about your experience
Interview Preparation Tips
I applied via Amcat and was interviewed before Jul 2021. There were 2 interview rounds.
Refer R S Agarwal book for apptitude
(1 Question)
- Q1. Write a c program on fractional numbers
- Ans.
A C program to perform arithmetic operations on fractional numbers.
Use float or double data type to store fractional numbers.
Use scanf() to take input from the user.
Perform arithmetic operations like addition, subtraction, multiplication, and division.
Use printf() to display the result.
Interview Preparation Tips
Skills evaluated in this interview
I applied via Company Website and was interviewed before Feb 2020. There was 1 interview round.
Interview Questionnaire
2 Questions
- Q1. They asked about dbms questions in the form of table formate
- Q2. They asked code for some python program
Interview Preparation Tips
I applied via LinkedIn and was interviewed before Jan 2021. There was 1 interview round.
Interview Questionnaire
1 Question
- Q1. 1. tell me about yourself
Interview Preparation Tips
I applied via Recruitment Consulltant and was interviewed before Feb 2021. There were 3 interview rounds.
1.It covers all aptitude topics, and English sentences
2.Essay writing
3.Coding
(2 Questions)
- Q1. In TR , languages which u mentioned in resume they will ask Basic programing Questions on Btech project They will say one idea , we need to tell the logic how can we develop (it may varies)
- Q2. Testing questions Polymorphism, abstraction,constructors, SQL basics
(5 Questions)
- Q1. What is your family background?
- Q2. Why should we hire you?
- Q3. Tell me about yourself.
- Q4. What are your strengths and weaknesses?
- Q5. Knowledge about updated technologies
Interview Preparation Tips
I applied via Naukri.com and was interviewed before Mar 2021. There were 3 interview rounds.
(6 Questions)
- Q1. What is your family background?
- Ans.
I come from a supportive family that values education and hard work, which has greatly influenced my career path in technology.
Parents: My parents are both educators, instilling a love for learning and curiosity in me from a young age.
Siblings: I have a younger sister who is pursuing a degree in computer science, and we often collaborate on tech projects together.
Family Values: Our family emphasizes the importance of p...
- Q2. Why should we hire you?
- Ans.
I bring a unique blend of technical skills, problem-solving abilities, and a passion for innovation that aligns with your team's goals.
Strong technical skills: Proficient in languages like Python and Java, demonstrated by developing a web application that improved user engagement by 30%.
Problem-solving mindset: Successfully resolved a critical bug in a production system under tight deadlines, ensuring minimal downtime.
...
- Q3. Where do you see yourself in 5 years?
- Q4. What are your salary expectations?
- Ans.
I expect a competitive salary based on my skills, experience, and industry standards, ideally in the range of $X to $Y.
Research industry standards: For example, Glassdoor or Payscale can provide insights into average salaries for similar roles.
Consider your experience: If you have 5 years of experience, you might expect a higher salary than someone just starting.
Factor in location: Salaries can vary significantly based...
- Q5. What are your strengths and weaknesses?
- Ans.
I excel in problem-solving and teamwork, but I sometimes struggle with time management under tight deadlines.
Strength: Strong problem-solving skills - I enjoy tackling complex coding challenges, like optimizing algorithms for better performance.
Strength: Effective teamwork - I thrive in collaborative environments, having successfully led a project with cross-functional teams.
Weakness: Time management - I occasionally u...
- Q6. Tell me about yourself.
(1 Question)
- Q1. Do you have technical certifications? How many programming languages do you known? How many development tools have you used?
- Ans.
Yes, I have technical certifications and I am proficient in multiple programming languages and development tools.
I have certifications in Java and Python
I am proficient in Java, Python, C++, and JavaScript
I have used development tools such as Eclipse, Visual Studio Code, and PyCharm
Interview Preparation Tips
Move frequently
value your reputation
Get experience at a any company
I applied via Company Website and was interviewed before Jan 2021. There were 2 interview rounds.
(1 Question)
- Q1. Oops based , C# Fundamental , Sql , Jquery , Mvc architecture
(1 Question)
- Q1. ADVANCED QUESTION ON sql ,
Interview Preparation Tips
I applied via Job Portal and was interviewed before Dec 2019. There was 1 interview round.
Interview Questionnaire
1 Question
- Q1. First they ask basic questions like HTML SQL Java.
Interview Preparation Tips
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