Zuno General Insurance Interview Questions and Answers

Q1. What are Generator Functions in JS
Ans. 
Generator functions in JS are special functions that can pause and resume their execution, allowing for asynchronous programming.
• Generator functions are defined using function* syntax.

• They use the yield keyword to pause execution and return a value.

• Generators can be iterated over using a for...of loop or by manually calling the next() method on the generator object.

• They are commonly used for asynchronous programming, a...read more
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Q2. What is Currying
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Currying is a technique in functional programming where a function with multiple arguments is transformed into a sequence of functions, each taking a single argument.
• Currying helps in creating reusable functions and improving code readability.

• It allows partial application of functions, where some arguments are fixed and others are left to be provided later.

• Example: const add = (a) => (b) => a + b; add(2)(3) will return...read more
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Q3. What are apply,call, bind methods
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apply, call, and bind are methods used in JavaScript to manipulate the context of a function.
• apply() - calls a function with a given 'this' value and arguments provided as an array

• call() - calls a function with a given 'this' value and arguments provided individually

• bind() - creates a new function that, when called, has its 'this' keyword set to the provided value
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Q4. Implement a retry function in node.js
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Implement a retry function in node.js
• Create a function that takes a function and number of retries as parameters

• Use a loop to call the function and handle errors

• Use setTimeout to delay retries if needed
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Q1. Disadvantages of indexes in mongoDb
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Indexes in MongoDB can have disadvantages like increased storage space, slower write operations, and potential performance degradation.
• Indexes can take up additional storage space as they store copies of the indexed fields.

• Creating and maintaining indexes can slow down write operations, as the indexes need to be updated whenever the data changes.

• Having too many indexes can lead to performance degradation, as MongoDB ha...read more
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Q1. How do you manage adversity?
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Q2. What are your strengths and weaknesses?
Ans. 
I excel in communication and adaptability, but I sometimes struggle with delegation and can be overly detail-oriented.
• Strength: Strong communication skills - I effectively convey ideas and foster collaboration within my team.

• Strength: Adaptability - I thrive in dynamic environments, quickly adjusting to new challenges and changes.

• Weakness: Difficulty with delegation - I tend to take on too much myself, which can lead t...read more
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Coding test was good but interviewer was not satisfied and thinking that i was doing cheating

Q1. What is inheritance, Call backs, event loop etc
Ans. 
Inheritance is a mechanism in object-oriented programming where a class inherits properties and behaviors from another class.
• Inheritance allows a class to reuse code from another class, promoting code reusability and reducing redundancy.

• Subclasses can extend the functionality of the superclass by adding new methods or overriding existing ones.

• Callbacks are functions that are passed as arguments to other functions and a...read more
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Q1. Redis cache implementation
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Redis caching improves application performance by storing frequently accessed data in memory for quick retrieval.
• Data Storage: Use Redis to store key-value pairs, e.g., caching user session data with a key like 'session:12345'.

• Expiration Policies: Set expiration times for cached data to ensure it remains fresh, e.g., `SETEX user:1000 3600 'John Doe'` for 1 hour.

• Cache Aside Pattern: Load data into the cache only when ne...read more
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Q2. DSA questions and architecture questions
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