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Trois Infotech Associate Software Engineer Interview Questions and Answers

Updated 19 Jan 2020

7 Interview questions

An Associate Software Engineer was asked
Q. What is two-way binding in Angular?
Ans. 

Two way binding in Angular allows automatic synchronization of data between the model and the view.

  • Two way binding is achieved using the ngModel directive.

  • Changes made in the view are automatically reflected in the model and vice versa.

  • It simplifies the code and reduces the need for manual event handling.

  • Example:

An Associate Software Engineer was asked
Q. How do you handle synchronous data in Node.js?
Ans. 

Synchronous data in Node.js can be handled using callbacks or promises.

  • Use callbacks to handle synchronous data in Node.js

  • Promises can also be used to handle synchronous data

  • Avoid using synchronous code in Node.js as it can block the event loop

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An Associate Software Engineer was asked
Q. Is Node.js synchronous or asynchronous? Explain with an example.
Ans. 

Node is asynchronous, meaning it can handle multiple requests at once without blocking the main thread.

  • Node uses an event-driven, non-blocking I/O model

  • Callbacks are used to handle asynchronous operations

  • Example: Reading a file using fs module

  • Example: Making an HTTP request using http module

An Associate Software Engineer was asked
Q. Why would you use MongoDB instead of MySQL?
Ans. 

MongoDB is better suited for handling unstructured data and offers better scalability and performance compared to MySQL.

  • MongoDB is a NoSQL database that allows for flexible and dynamic schema design.

  • MongoDB is better suited for handling large amounts of unstructured data, such as social media posts or sensor data.

  • MongoDB offers better scalability and performance compared to MySQL, especially for write-heavy applic...

An Associate Software Engineer was asked
Q. What is a callback, and what purpose does it serve?
Ans. 

A callback is a function passed as an argument to another function, which is then invoked inside the outer function.

  • Callbacks are used to execute code asynchronously, such as when an event occurs or when data is retrieved from a server.

  • They are commonly used in JavaScript for event handling, AJAX requests, and timers.

  • Callbacks can also be used for error handling, allowing the caller to handle errors that occur ins...

An Associate Software Engineer was asked
Q. What are observables in Angular?
Ans. 

Observables are a way to handle asynchronous data streams in Angular.

  • Observables are similar to Promises but can emit multiple values over time.

  • They can be created using the RxJS library.

  • They are often used for handling HTTP requests and real-time data updates.

  • Operators can be used to transform, filter, and combine observables.

  • Subscriptions are used to listen to the emitted values and handle errors and completion.

An Associate Software Engineer was asked
Q. What is express ,what is restful api
Ans. 

Express is a web application framework for Node.js. RESTful API is an architectural style for building web services.

  • Express is a popular framework for building web applications using Node.js

  • It provides a set of features for handling HTTP requests and responses

  • RESTful API is an architectural style for building web services that use HTTP methods to perform CRUD operations

  • It uses standard HTTP methods like GET, POST,...

Are these interview questions helpful?

Trois Infotech Associate Software Engineer Interview Experiences

1 interview found

I applied via Recruitment Consultant and was interviewed in Jul 2019. There were 3 interview rounds.

Interview Questionnaire 

9 Questions

  • Q1. Mostly the asked me about web development
  • Q2. What is two way binding in angular
  • Ans. 

    Two way binding in Angular allows automatic synchronization of data between the model and the view.

    • Two way binding is achieved using the ngModel directive.

    • Changes made in the view are automatically reflected in the model and vice versa.

    • It simplifies the code and reduces the need for manual event handling.

    • Example:

  • Answered by AI
  • Q3. What is express ,what is restful api
  • Ans. 

    Express is a web application framework for Node.js. RESTful API is an architectural style for building web services.

    • Express is a popular framework for building web applications using Node.js

    • It provides a set of features for handling HTTP requests and responses

    • RESTful API is an architectural style for building web services that use HTTP methods to perform CRUD operations

    • It uses standard HTTP methods like GET, POST, PUT,...

  • Answered by AI
  • Q4. Is node is synchronous or asynchronous explain with an example
  • Ans. 

    Node is asynchronous, meaning it can handle multiple requests at once without blocking the main thread.

    • Node uses an event-driven, non-blocking I/O model

    • Callbacks are used to handle asynchronous operations

    • Example: Reading a file using fs module

    • Example: Making an HTTP request using http module

  • Answered by AI
  • Q5. How to handle synchronous data in node js
  • Ans. 

    Synchronous data in Node.js can be handled using callbacks or promises.

    • Use callbacks to handle synchronous data in Node.js

    • Promises can also be used to handle synchronous data

    • Avoid using synchronous code in Node.js as it can block the event loop

  • Answered by AI
  • Q6. What is crud operation
  • Ans. 

    CRUD stands for Create, Read, Update, and Delete. It refers to the basic operations performed on a database.

    • Create - inserting new data into the database

    • Read - retrieving data from the database

    • Update - modifying existing data in the database

    • Delete - removing data from the database

    • CRUD operations are essential for managing data in a database

    • Examples include adding a new user, updating a product's price, or deleting a cu...

  • Answered by AI
  • Q7. Why you use mongo db insteasd of mysql
  • Ans. 

    MongoDB is better suited for handling unstructured data and offers better scalability and performance compared to MySQL.

    • MongoDB is a NoSQL database that allows for flexible and dynamic schema design.

    • MongoDB is better suited for handling large amounts of unstructured data, such as social media posts or sensor data.

    • MongoDB offers better scalability and performance compared to MySQL, especially for write-heavy application...

  • Answered by AI
  • Q8. What us observables in angular
  • Ans. 

    Observables are a way to handle asynchronous data streams in Angular.

    • Observables are similar to Promises but can emit multiple values over time.

    • They can be created using the RxJS library.

    • They are often used for handling HTTP requests and real-time data updates.

    • Operators can be used to transform, filter, and combine observables.

    • Subscriptions are used to listen to the emitted values and handle errors and completion.

  • Answered by AI
  • Q9. What is call back & for what purpuse it use
  • Ans. 

    A callback is a function passed as an argument to another function, which is then invoked inside the outer function.

    • Callbacks are used to execute code asynchronously, such as when an event occurs or when data is retrieved from a server.

    • They are commonly used in JavaScript for event handling, AJAX requests, and timers.

    • Callbacks can also be used for error handling, allowing the caller to handle errors that occur inside t...

  • Answered by AI

Interview Preparation Tips

Interview preparation tips for other job seekers - Create or develop a project within your area of interest & upload it in your cv make sure that you have the knowledge of your project from base to advance. I developed a project using mean stack and interviewer mostly asked about my project
Keep a base knowledge of your area of interest deviates your interviewer to your area of interest . Attempt to answer all the questions you get satisfy your interviewer
Wish you all the very best

Skills evaluated in this interview

Top trending discussions

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Interview Tips & Stories
1w (edited)
a team lead
Why are women still asked such personal questions in interview?
I recently went for an interview… and honestly, m still trying to process what just happened. Instead of being asked about my skills, experience, or how I could add value to the company… the questions took a totally unexpected turn. The interviewer started asking things like When are you getting married? Are you engaged? And m sure, if I had said I was married, the next question would’ve been How long have you been married? What does my personal life have to do with the job m applying for? This is where I felt the gender discrimination hit hard. These types of questions are so casually thrown at women during interviews but are they ever asked to men? No one asks male candidates if they’re planning a wedding or how old their kids are. So why is it okay to ask women? Can we please stop normalising this kind of behaviour in interviews? Our careers shouldn’t be judged by our relationship status. Period.
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Interview questions from similar companies

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  • Q1. Regarding my College project.
  • Q2. Why Tech Mahindra.

I applied via Naukri.com and was interviewed before Aug 2020. There were 4 interview rounds.

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  • Q1. Technical questions : 1)oops concepts 2)plsql cursors, triggers, procedures 3)quick sort algorithm

Interview Preparation Tips

Interview preparation tips for other job seekers - Be prepared with your resume. None of the questions were asked out of resume.

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Interview Preparation Tips

Interview preparation tips for other job seekers - Prepare with faceprep

I applied via Campus Placement and was interviewed before May 2020. There were 4 interview rounds.

Interview Questionnaire 

1 Question

  • Q1. Tell us about yourself. What are some of your achievments

Interview Preparation Tips

Interview preparation tips for other job seekers - Look for good communciation skills. Have a cheerful attitude

I applied via Company Website and was interviewed in Dec 2020. There was 1 interview round.

Interview Questionnaire 

1 Question

  • Q1. Self introduction

Interview Preparation Tips

Interview preparation tips for other job seekers - say individual ideas,plans, story's.say different opinions,speek confidentially, correctly answer Yes or no questions, correctly say interested and confidential job,

I applied via Campus Placement and was interviewed before Nov 2021. There were 2 interview rounds.

Round 1 - Resume Shortlist 
Pro Tip by AmbitionBox:
Keep your resume crisp and to the point. A recruiter looks at your resume for an average of 6 seconds, make sure to leave the best impression.
View all tips
Round 2 - Technical 

(2 Questions)

  • Q1. Python and Java questions
  • Q2. Oops basic interview questions

Interview Preparation Tips

Interview preparation tips for other job seekers - Easily we can Just Practice basic interview questions

Interview Questionnaire 

1 Question

  • Q1. Tell me about software system

I applied via Campus Placement and was interviewed before Aug 2020. There were 3 interview rounds.

Interview Questionnaire 

3 Questions

  • Q1. What is a bit
  • Ans. 

    A bit is the smallest unit of data in computing, representing a binary value of 0 or 1.

    • A bit can represent two states: off (0) or on (1).

    • Bits are the building blocks of all digital data, including text, images, and sound.

    • In binary code, a sequence of bits can represent numbers, letters, and commands.

    • For example, the letter 'A' is represented as 01000001 in binary, which is 65 in decimal.

  • Answered by AI
  • Q2. What us the size of a bit
  • Ans. 

    A bit is the smallest unit of digital information. It can have a value of either 0 or 1.

    • A bit is a binary digit, represented as either 0 or 1.

    • It is the basic unit of information used in computing and digital communications.

    • A group of 8 bits is called a byte.

    • The size of a bit is dependent on the architecture of the computer system.

  • Answered by AI
  • Q3. How many bits are there in C
  • Ans. 

    C is a programming language and does not have a fixed number of bits.

    • C is a high-level programming language that can be compiled to run on different architectures with varying bit sizes.

    • The number of bits in C depends on the hardware architecture it is compiled for.

    • For example, C code compiled for a 32-bit architecture will have 32-bit integers, while code compiled for a 64-bit architecture will have 64-bit integers.

  • Answered by AI

Interview Preparation Tips

Interview preparation tips for other job seekers - Be calm and patient. Dont hesitate to give answers.

Skills evaluated in this interview

Trois Infotech Interview FAQs

What are the top questions asked in Trois Infotech Associate Software Engineer interview?

Some of the top questions asked at the Trois Infotech Associate Software Engineer interview -

  1. Is node is synchronous or asynchronous explain with an exam...read more
  2. What is call back & for what purpuse it ...read more
  3. How to handle synchronous data in node...read more

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Trois Infotech Associate Software Engineer Salary
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₹1.8 L/yr - ₹6 L/yr
40% less than the average Associate Software Engineer Salary in India
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4.0

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1.2

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1.0

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1.5

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1.2

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