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Hyperface Interview Questions and Answers
9 Interview questions
Database design for a website similar to opx
Identify the entities and their relationships (e.g. users, products, orders)
Design tables for each entity with appropriate attributes
Establish primary and foreign key relationships between tables
Consider normalization to reduce redundancy and improve data integrity
Implement indexes for efficient data retrieval
Browser storage in JavaScript allows data to be stored locally on the user's device.
Browser storage includes localStorage and sessionStorage.
localStorage stores data with no expiration date, while sessionStorage stores data for one session only.
Data is stored as key-value pairs and can be accessed and manipulated using JavaScript methods like getItem, setItem, and removeItem.
Discussed various technical questions covering algorithms, data structures, and coding challenges.
Explained sorting algorithms like QuickSort and MergeSort with time complexity analysis.
Solved a coding challenge involving string manipulation, such as reversing a string or checking for palindromes.
Discussed data structures like arrays, linked lists, and trees, providing examples of their use cases.
Answered question...
Projects are handled through effective planning, delegation, communication, and monitoring.
Effective planning is crucial to set clear goals and timelines.
Delegation of tasks based on team members' strengths and expertise.
Regular communication to ensure everyone is on the same page.
Monitoring progress and making adjustments as needed.
Example: Using project management software to track tasks and deadlines.
Semantic HTML is using HTML elements that convey meaning to both the browser and the developer.
Semantic HTML helps improve accessibility and SEO.
Examples include using <header>, <nav>, <main>, <article>, <section>, <footer> tags instead of <div> for better structure and meaning.
Semantic HTML makes it easier for developers to understand the structure of a webpage.
Use recursion to get unique keys in nested object
Create a function that takes in an object as input
Use recursion to iterate through the object and store unique keys in a Set
Return an array of unique keys from the Set
promise.all waits for all promises to resolve, while promise.race waits for the first promise to resolve or reject
promise.all resolves when all promises in the iterable have resolved
promise.race resolves or rejects as soon as one of the promises in the iterable resolves or rejects
Example: Promise.all([promise1, promise2, promise3]) will wait for all three promises to resolve before resolving itself
Example: Promise...
Debouncing in Javascript is a technique used to limit the number of times a function is called, typically used for handling events like scroll or resize.
Debouncing involves setting a delay before a function is executed after the last time it was called.
It helps in optimizing performance by preventing unnecessary function calls, especially for events that trigger frequently.
Example: Implementing a debounce function...
Caching is a technique used to store copies of frequently accessed data in order to speed up retrieval times.
Caching helps reduce the load on servers by serving cached content instead of generating it from scratch.
Common types of caching include browser caching, server-side caching, and CDN caching.
Examples of caching libraries/tools include Redis, Memcached, and Varnish.
Cache invalidation is an important aspect o...
Hyperface Interview Experiences
11 interviews found
Anonymous
I applied via Campus Placement and was interviewed in Jul 2024. There were 4 interview rounds.
1 question was asked time was 2hour
Design a database and class for food booking app
(2 Questions)
- Q1. Explain previous questions asked in technical round
- Ans.
Discussed various technical questions covering algorithms, data structures, and coding challenges.
Explained sorting algorithms like QuickSort and MergeSort with time complexity analysis.
Solved a coding challenge involving string manipulation, such as reversing a string or checking for palindromes.
Discussed data structures like arrays, linked lists, and trees, providing examples of their use cases.
Answered questions on ...
- Q2. Questions on project and DBMS
(1 Question)
- Q1. 3 DSA questions on leetcode
I applied via Approached by Company and was interviewed in Feb 2024. There were 7 interview rounds.
This was an OA round. The question was very verbal and had a lot of requirements. Need to understand and then design a proper data structure to maintain. Even the brute force solution took 1h30m to complete and time ran up. Topics: TreeMap, Priority Queue
Got invited for onsite interviews. There were 3 interview rounds planned for the day. Very exhausting process.
Round 2[a]: I was asked to design entire micro service - Offer Management System in 1h30m. This included actually understanding a page of requirements, coming up with LLD and preferably table schema. THIS HAS TO BE WORKING BY END OF 1H30M says the interviewer first thing into the interview. After sometime no one was around to clarify the questions; just left me at the desk.
Round 2[b]: This was LLD/DSA round. I don't know what the interviewer was expecting TBH. Asked to solve problem of inventory management; where items needs to be placed in shelves. Need to come up with algorithm if find() and place() method.
Round 2[c]: This was HLD round. Got asked about handling database locks and reverting transaction in micro service architecture with more than one DBs involved.
(1 Question)
- Q1. Technical Manager Interview The guy was taking the interview from his car while driving. Just imagine you commit to a interview and a person takes time off for you and you are interviewing them from a car!...
(1 Question)
- Q1. Technical Interview with Co-Founder Even after clearing all of these - the co founder wanted to still drill down on tech side. This was scheduled for 1h. The guy gets a call 30 mins into the interview and...
Now all of a sudden; HR next day says due to limited time and after discussion across panel [after 6 interviews - all cleared successfully]; we think that you lack some things and want to evaluate further!!! I was at my limit but thought okay let's give it a try. He says you need to prepare a PPT on some library called Bucket4j.
And after 2/3 days of preparation I gave the PPT to co-founder. All the questions answered properly. No feedback given at all after interview. And finally have been since ghosted. It has been 15 days since this; and I reach out to HR via WhatsApp - he says we will NOT move forward. And no further official communication.
Interview Preparation Tips
I applied via Referral
(1 Question)
- Q1. Overview of the company and past experience fitment
(1 Question)
- Q1. Alignment on the role expectations
(1 Question)
- Q1. Discussion with senior management
(1 Question)
- Q1. Elaborate on past experience
- Ans.
I have extensive experience in project management, team leadership, and strategic planning across various industries.
Led a cross-functional team of 15 in a successful product launch, increasing market share by 20%.
Implemented a new project management system that improved efficiency by 30% and reduced costs by 15%.
Developed strategic partnerships that resulted in a 25% increase in revenue over two years.
Conducted traini...
(1 Question)
- Q1. How projects are handled
- Ans.
Projects are handled through effective planning, delegation, communication, and monitoring.
Effective planning is crucial to set clear goals and timelines.
Delegation of tasks based on team members' strengths and expertise.
Regular communication to ensure everyone is on the same page.
Monitoring progress and making adjustments as needed.
Example: Using project management software to track tasks and deadlines.
(1 Question)
- Q1. Credit card related queries
(1 Question)
- Q1. Polyfill for promise
- Ans.
A polyfill is a piece of code that provides the technology that you expect the browser to provide natively.
Polyfill for promises can be used to add support for promises in older browsers that do not natively support them.
Popular polyfills for promises include 'es6-promise' and 'bluebird'.
Polyfills can be included in your project using a script tag or through a package manager like npm.
I applied via Campus Placement and was interviewed in Jul 2024. There were 2 interview rounds.
This had coding MCQ along with aptitude 15qs in 20mins.
3 questions
1 is database design and rest 2 were dsa
I applied via Naukri.com and was interviewed in Mar 2024. There was 1 interview round.
(2 Questions)
- Q1. Pollyfill for promise.allSettled
- Q2. Browser storage in js
- Ans.
Browser storage in JavaScript allows data to be stored locally on the user's device.
Browser storage includes localStorage and sessionStorage.
localStorage stores data with no expiration date, while sessionStorage stores data for one session only.
Data is stored as key-value pairs and can be accessed and manipulated using JavaScript methods like getItem, setItem, and removeItem.
Skills evaluated in this interview
I applied via Job Portal and was interviewed in Oct 2023. There was 1 interview round.
(5 Questions)
- Q1. Explain debouncing in Javascript
- Ans.
Debouncing in Javascript is a technique used to limit the number of times a function is called, typically used for handling events like scroll or resize.
Debouncing involves setting a delay before a function is executed after the last time it was called.
It helps in optimizing performance by preventing unnecessary function calls, especially for events that trigger frequently.
Example: Implementing a debounce function for ...
- Q2. What is the difference between promise.all and promise.race
- Ans.
promise.all waits for all promises to resolve, while promise.race waits for the first promise to resolve or reject
promise.all resolves when all promises in the iterable have resolved
promise.race resolves or rejects as soon as one of the promises in the iterable resolves or rejects
Example: Promise.all([promise1, promise2, promise3]) will wait for all three promises to resolve before resolving itself
Example: Promise.race...
- Q3. Prototype of caching
- Ans.
Caching is a technique used to store copies of frequently accessed data in order to speed up retrieval times.
Caching helps reduce the load on servers by serving cached content instead of generating it from scratch.
Common types of caching include browser caching, server-side caching, and CDN caching.
Examples of caching libraries/tools include Redis, Memcached, and Varnish.
Cache invalidation is an important aspect of cac...
- Q4. What is semantic HTML
- Ans.
Semantic HTML is using HTML elements that convey meaning to both the browser and the developer.
Semantic HTML helps improve accessibility and SEO.
Examples include using <header>, <nav>, <main>, <article>, <section>, <footer> tags instead of <div> for better structure and meaning.
Semantic HTML makes it easier for developers to understand the structure of a webpage.
- Q5. Get unique keys in nested object
- Ans.
Use recursion to get unique keys in nested object
Create a function that takes in an object as input
Use recursion to iterate through the object and store unique keys in a Set
Return an array of unique keys from the Set
Skills evaluated in this interview
I appeared for an interview in Mar 2024.
(2 Questions)
- Q1. Dsa question of dynamic programming
- Q2. Database design of a website similar to opx
- Ans.
Database design for a website similar to opx
Identify the entities and their relationships (e.g. users, products, orders)
Design tables for each entity with appropriate attributes
Establish primary and foreign key relationships between tables
Consider normalization to reduce redundancy and improve data integrity
Implement indexes for efficient data retrieval
Skills evaluated in this interview
I applied via Recruitment Consulltant and was interviewed in Jul 2023. There were 3 interview rounds.
There was a chef ingredients problem invloving multiple logics, need to solve within 1hr 30 mins
(2 Questions)
- Q1. Low level Design
- Q2. High Level Design
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Overall Interview Experience Rating
based on 11 interview experiences
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