Bacancy Technology Interview Questions, Process, and Tips

Q1. Difference between async and promise
Ans. 
Async is a keyword used to define a function that returns a promise. Promises are objects representing the eventual completion or failure of an asynchronous operation.
• Async functions always return a promise, while promises represent the eventual result of an asynchronous operation.

• Async functions make it easier to write asynchronous code in a synchronous manner, using the 'await' keyword to pause execution until the pr...read more
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Q2. Difference between fetch and axios
Ans. 
Fetch is a built-in web API in JavaScript for making HTTP requests, while Axios is a third-party library for the same purpose.
• Fetch is built into the browser, while Axios is a standalone library that needs to be installed separately.

• Axios has built-in support for handling request and response interceptors, while Fetch does not.

• Axios automatically transforms JSON data, while with Fetch you need to manually call the .jso...read more
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Explain the difference between volatile and const volatile in C

Q1. What is the difference between SPI and I2C Communication protocols?
Ans. 
SPI is faster, full-duplex, and uses separate data lines, while I2C is slower, half-duplex, and uses a shared data line.
• SPI is faster than I2C

• SPI is full-duplex, allowing data to be sent and received simultaneously

• SPI uses separate data lines for communication

• I2C is slower than SPI

• I2C is half-duplex, meaning data can only be sent or received at a time

• I2C uses a shared data line for communication
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Q1. Js promises async await closusre
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Q2. Node js architecture event loop
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Q1. Do you know basic About SEO practices?
Ans. 
Yes, basic SEO practices include keyword research, on-page optimization, link building, and content creation.
• Keyword research involves identifying relevant keywords for your website or content.

• On-page optimization includes optimizing meta tags, headings, and content for search engines.

• Link building involves acquiring backlinks from other websites to improve your site's authority.

• Content creation focuses on creating hig...read more
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Q1. Design table in react which includes pagination, sorting and searching
Ans. 
Use React table library like react-table or material-table for easy implementation of pagination, sorting, and searching functionality.
• Use a React table library like react-table or material-table for easy implementation

• Implement pagination by setting the number of rows per page and current page number

• Add sorting functionality by clicking on column headers to sort data in ascending or descending order

• Include a search ba
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Q1. Its was all about the recruitments and strategic question
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Q1. Challenges in projects done earlier
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Q1. How to track amount of work done by team
Ans. 
Track team's work progress by setting clear goals, using project management tools, regular check-ins, and tracking key metrics.
• Set clear goals and milestones for the team to achieve

• Utilize project management tools like Trello, Asana, or Jira to track tasks and progress

• Have regular check-ins with team members to discuss progress and address any roadblocks

• Track key metrics such as completed tasks, hours worked, and proje
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