SBS Technical Lead Interview Questions and Answers

Q1. What is event loop
Ans. 
Event loop is a mechanism in programming that allows for asynchronous execution of code by managing the order of operations.
• Event loop is commonly used in JavaScript to handle asynchronous operations.

• It allows for non-blocking I/O operations by continuously checking the event queue for tasks to execute.

• Event loop ensures that tasks are executed in the order they were added to the queue.

• Example: setTimeout() function in...read more
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Q2. What is callback hell
Ans. 
Callback hell is a situation in asynchronous programming where multiple nested callbacks make the code difficult to read and maintain.
• Occurs when multiple asynchronous operations are nested within each other

• Leads to deeply nested code structure which is hard to understand and maintain

• Can be avoided by using promises, async/await, or libraries like async.js
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Q1. Solid principles
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Q1. Interface and abstraction
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Q1. Why you join this organization
Ans. 
I joined this organization because of its reputation for innovation and commitment to employee growth.
• Impressed by the organization's track record of innovation

• Opportunity for personal and professional growth

• Positive reviews from current employees

• Alignment with my career goals and values
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Q1. Basic java question, collection, sql, oops
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Q1. More advanced java questions
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Q1. Get to know about the project and work culture.
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25 questions, 1hr, technical questions

Q1. What is American diasability Act
Ans. 
The Americans with Disabilities Act (ADA) is a civil rights law that prohibits discrimination against individuals with disabilities in all areas of public life.
• Enacted in 1990, the ADA ensures equal opportunities for people with disabilities in employment, public accommodations, transportation, state and local government services, and telecommunications.

• The ADA requires employers to provide reasonable accommodations to...read more
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Q2. How do you hide the content from screen readers
Ans. 
Use aria-hidden attribute or visually hidden CSS to hide content from screen readers
• Use aria-hidden='true' attribute on the element you want to hide from screen readers

• Apply visually hidden CSS class to the element to hide it from screen readers but keep it visible on the screen

• Avoid using display: none or visibility: hidden as they will hide the content from both screen readers and visual users
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Q1. What is expectation
Ans. 
Expectation is a belief or anticipation about what will happen in the future.
• Expectation is based on past experiences and knowledge.

• It can influence our behavior and decisions.

• Unmet expectations can lead to disappointment or frustration.
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