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Hummingbird Web Solutions Interview Questions and Answers
14 Interview questions
A simple database schema for Netflix includes tables for users, movies, subscriptions, and viewing history.
Users table: stores user information (e.g., user_id, name, email).
Movies table: contains movie details (e.g., movie_id, title, genre, release_year).
Subscriptions table: tracks user subscriptions (e.g., user_id, plan_type, start_date, end_date).
Viewing History table: logs user activity (e.g., user_id, movie_id...
Vanilla JS is generally faster for simple tasks, while React.js excels in building complex UIs with efficient updates.
Vanilla JS directly manipulates the DOM, which can be faster for small applications.
React.js uses a virtual DOM to optimize updates, making it faster for complex UIs with many components.
For simple tasks, Vanilla JS may have less overhead than React.js.
React.js provides reusable components, which c...
Choosing the right database depends on the application's requirements, such as scalability, data structure, and transaction needs.
Relational Databases (e.g., MySQL, PostgreSQL): Best for structured data with complex queries and transactions.
NoSQL Databases (e.g., MongoDB, Cassandra): Ideal for unstructured data, high scalability, and flexible schema.
In-Memory Databases (e.g., Redis, Memcached): Suitable for applic...
I'm fascinated by the digital world for its dynamic nature, creativity, and ability to connect people globally.
The rapid evolution of technology keeps me engaged; for example, the rise of AI in marketing strategies.
The creativity involved in crafting compelling content, like viral social media campaigns.
The ability to analyze data and metrics to optimize campaigns, such as using Google Analytics to track user beha...
To efficiently scale a database horizontally, consider sharding, replication, and using distributed databases.
Sharding: Split the database into smaller, more manageable pieces called shards, each hosted on different servers. Example: User data can be divided by geographical regions.
Replication: Create copies of the database across multiple servers to distribute read requests. Example: Master-slave replication wher...
Event-driven architecture is ideal for asynchronous notifications about driver status updates.
Event-driven architecture allows for decoupled components that can react to events independently.
Using message queues (e.g., RabbitMQ, Kafka) can help manage notifications without blocking main processes.
Microservices can be employed to handle different statuses (arrived, cancelled, completed) separately.
Serverless functi...
Class is used to style multiple elements, while ID is used to style a single element.
Class can be used multiple times in a document, while ID should be unique
Class is denoted by a period (.), ID is denoted by a hash (#)
Class can be applied to multiple elements, ID can only be applied to one element
Closure in JavaScript is a function that has access to its own scope, as well as the outer scope in which it was defined.
A closure allows a function to access variables from its outer function even after the outer function has finished executing.
Closures are commonly used in event handlers, callbacks, and in functional programming.
Example: function outerFunction() { let outerVar = 'I am outer'; return function inn...
The IPO problem involves scheduling and maximizing profits from initial public offerings.
Understand the problem constraints and requirements clearly.
Use a greedy algorithm to prioritize high-profit IPOs.
Consider edge cases, such as overlapping IPO times.
Example: If IPOs A, B, and C have profits of 100, 200, and 150 respectively, prioritize B first.
Yes, I have prior experience with Javascript.
I have worked on various projects using Javascript.
I am familiar with popular Javascript libraries and frameworks like React and Node.js.
I have experience in writing clean and efficient Javascript code.
I have used Javascript for both front-end and back-end development.
Hummingbird Web Solutions Interview Experiences
32 interviews found
Anonymous
Selected
I applied via LinkedIn and was interviewed in Nov 2024. There were 4 interview rounds.
(2 Questions)
- Q1. Can you introduce yourself?
- Ans.
Experienced Full Stack Developer with expertise in front-end and back-end technologies.
Experienced in HTML, CSS, JavaScript for front-end development
Proficient in Node.js, Express, MongoDB for back-end development
Familiar with React, Angular for building interactive web applications
- Q2. What is graphQL?, What is REST API? and which is better graphQL or REST API?
- Ans.
GraphQL is a query language for APIs and a runtime for executing those queries. REST API is a set of rules for building web services. Both have their own advantages.
GraphQL allows clients to request only the data they need, reducing over-fetching and under-fetching.
REST API follows a more rigid structure and is easier to understand for beginners.
GraphQL is more efficient for complex queries involving multiple resources...
I was asked to discuss the system design of Google Meet, with a primary focus on video processing and WebRTC.
A graph question regarding LC 1334.
(1 Question)
- Q1. Can you provide an introduction and a summary of your past experiences, as well as your motivations for wanting to join this company?
- Ans.
Experienced Full Stack Developer with a passion for creating innovative solutions and a strong desire to contribute to a dynamic team.
Over 5 years of experience in full stack development, working on various projects from concept to deployment.
Proficient in front-end technologies such as HTML, CSS, JavaScript, and React.
Skilled in back-end technologies including Node.js, Express, and MongoDB.
Motivated by the opportunity...
Interview Preparation Tips
- System Design
- DSA
I applied via Cutshort and was interviewed in Oct 2024. There was 1 interview round.
(2 Questions)
- Q1. The Database performance is becoming a bottleneck and the team needs to horizontally scale the database. Which design approach should they use to scale the database efficiently?
- Ans.
To efficiently scale a database horizontally, consider sharding, replication, and using distributed databases.
Sharding: Split the database into smaller, more manageable pieces called shards, each hosted on different servers. Example: User data can be divided by geographical regions.
Replication: Create copies of the database across multiple servers to distribute read requests. Example: Master-slave replication where the...
- Q2. The app needs to send a beyond time notification to user about driver status. The status are asked, arrived, cancelled or completed. Each notification must be processed asynchronously to avoid blocking oth...
- Ans.
Event-driven architecture is ideal for asynchronous notifications about driver status updates.
Event-driven architecture allows for decoupled components that can react to events independently.
Using message queues (e.g., RabbitMQ, Kafka) can help manage notifications without blocking main processes.
Microservices can be employed to handle different statuses (arrived, cancelled, completed) separately.
Serverless functions (...
(1 Question)
- Q1. 3 Question was there related to architecture and Computer networks.
(2 Questions)
- Q1. Microservices and Monolith.
- Q2. Leetcode hard Sum.
Anushka Gupta
I applied via LinkedIn and was interviewed in Aug 2024. There were 2 interview rounds.
(2 Questions)
- Q1. CLOSURE IN Javascript ?
- Ans.
Closure in JavaScript is a function that has access to its own scope, as well as the outer scope in which it was defined.
A closure allows a function to access variables from its outer function even after the outer function has finished executing.
Closures are commonly used in event handlers, callbacks, and in functional programming.
Example: function outerFunction() { let outerVar = 'I am outer'; return function innerFun...
- Q2. Class and ID difference
- Ans.
Class is used to style multiple elements, while ID is used to style a single element.
Class can be used multiple times in a document, while ID should be unique
Class is denoted by a period (.), ID is denoted by a hash (#)
Class can be applied to multiple elements, ID can only be applied to one element
(2 Questions)
- Q1. System Design question
- Q2. Leetcode medium question on backtracking
Skills evaluated in this interview
I appeared for an interview in Feb 2025, where I was asked the following questions.
- Q1. 1. Given Scenario which db wii you choose
- Ans.
Choosing the right database depends on the application's requirements, such as scalability, data structure, and transaction needs.
Relational Databases (e.g., MySQL, PostgreSQL): Best for structured data with complex queries and transactions.
NoSQL Databases (e.g., MongoDB, Cassandra): Ideal for unstructured data, high scalability, and flexible schema.
In-Memory Databases (e.g., Redis, Memcached): Suitable for application...
- Q2. 2. Login and signup flow in differenct ways
- Ans.
Login and signup flows are essential for user authentication, ensuring secure access to applications and services.
User Registration: Users provide information like email and password to create an account, e.g., filling out a signup form.
Email Verification: After signup, users may receive a verification email to confirm their identity before accessing the application.
Login Process: Users enter their credentials (usernam...
I applied via Naukri.com and was interviewed in Aug 2024. There was 1 interview round.
(2 Questions)
- Q1. Tell me about yourself?
- Ans.
I am a dedicated and detail-oriented business analyst with a strong background in data analysis and problem-solving.
I have a Bachelor's degree in Business Administration
I have experience in conducting market research and analyzing data to identify trends
I am proficient in using tools like Excel, SQL, and Tableau for data analysis
I have excellent communication skills and can effectively collaborate with cross-functional...
- Q2. Some questions on project
Selected
I applied via AmbitionBox and was interviewed in Jan 2024. There was 1 interview round.
(6 Questions)
- Q1. Java Full stack developer rool
- Q2. Java Full stack developer
- Q3. SQL, spring, spring boot, html,core Java,oops
- Q4. I am fresher improve my skills
- Q5. CSS , javascript, HTML
- Q6. I am fresher for improving the skills growth and development
Interview Preparation Tips
Selected
I applied via Naukri.com and was interviewed in Jul 2023. There were 6 interview rounds.
(1 Question)
- Q1. Platform: Google forms integrated with Mercer Mettel Proctor: Proctored using webcam, audio and screen recorder. Question type: MCQ Aptitude level: Okayish Coding level: Moderate (PHP Language) Miscel...
(1 Question)
- Q1. A week later after first round, got a call from the HR regarding the profile, qualifications, salary and location. Interview was scheduled in 1.5hours, and there was no room to reschedule. 🤡🤡🤡
(1 Question)
- Q1. Platform: Google Meet Duration: 90 minutes Type: Hard DSA problems Note: Problems need to be solved on the platform like Codeforces, leetcode, FreeCodeCamp etc while sharing the screen. All Test cases nee...
(1 Question)
- Q1. Platform: Google Meet Duration: 30 minutes Type: Solely DSA based Note: No discussion on projects or the domain applied for. The interviewer joined 20 minutes late. Really unprofessional, but hey, it's u...
(2 Questions)
- Q1. Basic HR question
- Q2. Basic HR Questions, and then she showed me the compensation and the location. They wanted immediate joiners, but I guess 15 days is immediate only. Nobody can and I quote "Packs your bags and catch the fl...
Interview Preparation Tips
- CP
- COMPETITIVE PROGRAMMING
- DSA
- Hard DSA
- CODEFORCES
- CODECHEF
- HARD LEETCODE
- SOLELY DSA BASED
- CODING
But, if you're a fresher, don't apply for his company unless you're ok with 3.5-4 LPA, have expertise in Competitive Programming and can solve any hard leetcode problem under 20minutes. They won't ask for your introduction, your projects or your interest. No matter what role you apply for, backend, frontend, fullstack, app development, you'll be judged based on some really hard twisted DSA.
The interviewer says, they really respect CP guys in their company and I'm yet to see even one CP guy in the company. The interview will be totally based on you passing the test cases. Doesn't matter what your logic was or how close you were. Unless you pass the test cases, you're no good..
You can apply and go through the rounds yourself, if you don't believe me. But tbh, I found it an utmost waste of time. I understand DSA is essential, but is really hard level DSA required.
I mean, I didn't apply for Google or microsoft, I just wanted a simple dev job where I can utilise my project making skills.
If I had to go with CP, obviously I would've applied on Google/Facebook/microsoft. For what I'd apply here for a pay of 3.5-4 LPA.
Verdict: I got the job offer for Pune, 4LPA. But, after talking to some employees of the company I realised the work pressure, and the overexpectations and the old Techstack they been rocking. So, I negotiated for a higher salary of 5-6 LPA which other candidates were getting. Apparantly, I've been told that I couldn't answer some DSA problems and hence they cannot offer me the same, and also they withdrawn my offer. I am fine with it, because after hearing the reviews of its own employees, I made up my mind of not joining it for that low compensation anyways. If the Techstack was better, there was a chance, but with their current Techstack, I don't think it'll help any fresher in their journey as a backend/full stack developer.
Selected
I applied via Naukri.com and was interviewed in Sep 2023. There were 3 interview rounds.
(1 Question)
- Q1. So you have prior experience with Javascript ?
- Ans.
Yes, I have prior experience with Javascript.
I have worked on various projects using Javascript.
I am familiar with popular Javascript libraries and frameworks like React and Node.js.
I have experience in writing clean and efficient Javascript code.
I have used Javascript for both front-end and back-end development.
In the previous round, they give you a link to freecodecamp course - basic javascript.
In this round (Coding) every single question is asked from the exact same course, as is.
(1 Question)
- Q1. The HR discusses salary and commutation and other things
Interview Preparation Tips
Note: after joining, you will still have to give (and clear) 2-3 tests every week before you are confirmed. If you fail to clear, you will be fired immediately.
Skills evaluated in this interview
Gauri Bagawe
I applied via Naukri.com and was interviewed in Sep 2023. There were 3 interview rounds.
Some question basis on JavaScript are asked in google form.
(2 Questions)
- Q1. Interviewer give some links from Freecodecamp. Interviewer give some time for solving question you need to pass the all test cases.
- Q2. Wordblank , Data Algorithm que
Interview Preparation Tips
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based on 34 interview experiences
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Hummingbird Web Solutions Reviews and Ratings
based on 62 reviews
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