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VIZIO Consultancy Software Developer Interview Questions and Answers
VIZIO Consultancy Software Developer Interview Experiences
1 interview found
Anonymous
(2 Questions)
- Q1. Tella bout react what it does
- Q2. Do u know backend what is nodejs
- Ans.
Node.js is a backend runtime environment that allows developers to run JavaScript on the server side.
Node.js is built on Chrome's V8 JavaScript engine.
It is non-blocking and event-driven, making it efficient for handling multiple connections.
Node.js is commonly used for building APIs, web servers, and real-time applications.
It has a large ecosystem of libraries and frameworks, such as Express.js and Socket.io.
(2 Questions)
- Q1. Tell the role of useefect
- Ans.
useEffect is a hook in React that allows you to perform side effects in function components.
useEffect is used to perform side effects in function components, such as data fetching, subscriptions, or manually changing the DOM.
It runs after every render by default, but you can also specify dependencies to control when it runs.
Example: useEffect(() => { console.log('Component rendered'); }, []);
- Q2. Tell about event loop in react
- Ans.
Event loop in React is responsible for handling asynchronous operations and updating the UI.
Event loop is a mechanism that allows JavaScript to perform non-blocking operations.
In React, the event loop is used to handle tasks like updating the UI, handling user interactions, and fetching data from APIs.
Event loop ensures that the application remains responsive by prioritizing certain tasks over others.
Example: When a us...
Skills evaluated in this interview
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Interview questions from similar companies
I applied via Referral and was interviewed in Nov 2023. There was 1 interview round.
(1 Question)
- Q1. Write a python code that will check all data in databricks and email the % error contains in that data. Implement encryption security
Interview Preparation Tips
I applied via Naukri.com and was interviewed in Jun 2021. There were 3 interview rounds.
Interview Questionnaire
1 Question
- Q1. What was the most challenging task/project and how did you handle it?
Interview Preparation Tips
Interview Questionnaire
3 Questions
- Q1. Difference between future method and Queueable?
- Ans.
Future methods are asynchronous and execute in a separate thread, while Queueable allows chaining of jobs and can handle larger data volumes.
Future methods are limited to 50 per transaction and cannot be chained
Queueable can be chained and can handle up to 50 jobs in a single transaction
Future methods are executed in a separate thread and are useful for long-running operations
Queueable jobs can be scheduled to run at a...
- Q2. Can we call a future method from another?
- Ans.
Yes, we can call a future method from another future method.
A future method can call another future method using the @future annotation.
The second future method will be queued and executed after the first future method completes.
It is important to note that there is a limit of 50 future method calls per Apex invocation.
- Q3. Can we call a future method from a batch class?
- Ans.
Yes
A future method can be called from a batch class
Future methods are used to perform long-running operations asynchronously
Batch classes are used to process large data sets in smaller chunks
Calling a future method from a batch class allows for parallel processing
Skills evaluated in this interview
I applied via LinkedIn and was interviewed in May 2021. There was 1 interview round.
Interview Questionnaire
1 Question
- Q1. General
Interview Preparation Tips
I applied via Naukri.com and was interviewed in Oct 2020. There was 1 interview round.
Interview Questionnaire
3 Questions
- Q1. What are props and cons in javascript?
- Ans.
Props and cons are not specific terms in JavaScript. Did you mean pros and cons?
Pros: flexibility, easy to learn, wide range of applications
Cons: can be slow, can be difficult to debug, can have security vulnerabilities
- Q2. Nodejs vs Javascript?
- Ans.
Nodejs is a runtime environment for executing JavaScript code outside of a web browser.
Nodejs is built on top of the V8 JavaScript engine
JavaScript is a programming language used for both front-end and back-end development
Nodejs allows for server-side scripting and can be used to build scalable network applications
JavaScript is primarily used for client-side scripting in web browsers
- Q3. Binary Tree?
Interview Preparation Tips
Skills evaluated in this interview
Rachna Poddar
Selected
I applied via Job Portal and was interviewed in Oct 2024. There were 2 interview rounds.
(1 Question)
- Q1. Tell me about yourself
(1 Question)
- Q1. Pitch any upgrad course
- Ans.
Upgrade your skills with our Advanced Excel course for better job opportunities.
Learn advanced functions and formulas in Excel
Master data analysis and visualization techniques
Improve your efficiency and productivity at work
Get hands-on experience with real-world projects
Receive a certificate upon completion
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