Wan Buffer Services Interview Questions and Answers

MCQs based on JavaScript

Q1. Tell me about yourself
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Q1. 1 coding problem
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Q2. Javascript basic questions on objects, array methods
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Q1. Advance JS concepts
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Q2. Difference between Scripting and Programming languages
Ans. 
Scripting languages are used for automating tasks and are interpreted at runtime, while programming languages are used for creating applications and are compiled before runtime.
• Scripting languages are typically used for automating tasks and are often interpreted at runtime

• Programming languages are used for creating applications and are usually compiled before runtime

• Scripting languages are often easier to learn and use...read more
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Q1. Explain the concept of closures in JavaScript
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Closures in JavaScript are functions that retain access to their lexical scope, even when executed outside that scope.
• A closure is created when a function is defined inside another function.

• The inner function has access to the outer function's variables.

• Closures can be used to create private variables.

• Example: function outer() { let count = 0; return function inner() { count++; return count; }; }

• Closures are often used
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Q2. Explain the event loop and how JavaScript is asynchronous
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The event loop enables JavaScript to perform non-blocking operations, allowing asynchronous execution of code.
• JavaScript is single-threaded, meaning it has one call stack for executing code.

• The event loop continuously checks the call stack and the message queue.

• When the call stack is empty, the event loop pushes the first message from the queue to the stack for execution.

• Asynchronous operations (like setTimeout, fetch)...read more
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Q1. Process of job I'm going to do need same guide from you mam
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Q1. How to install links so I can go ahead start working hard
Ans. 
To install links, you need to follow a few simple steps.
• Determine the type of link you want to install (e.g. hyperlink, internal link, external link)

• Highlight the text or image you want to turn into a link

• Click on the link icon in your editing software or use the HTML code

• Insert the URL or file path for the link

• Test the link to make sure it works properly
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Q1. They don't ask to much questions they hire people whom are skilled
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Q2. Tell me about your feature plans
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Q1. About my self
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Q1. Technical questions
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Q1. Questions related to Blockchain technology
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Q2. Questions related to past projects and expereinces
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Q1. Project related questions with hands-on experience in Blockchain
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Q2. Security and integrity within Blockchain Applications
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Q1. HDL data loader keys
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Q2. HCM extracts Types
Ans. 
HCM extracts Types are different types of data extracts available in Human Capital Management systems.
• HCM extracts Types include Payroll Extracts, Time and Attendance Extracts, Benefits Extracts, etc.

• Each type of extract contains specific data related to that category, such as employee payroll information, attendance records, benefits enrollment details, etc.

• These extracts are used for reporting, analysis, and integrat...read more
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