Mobikwik IOS Developer Interview Questions and Answers

Basic Nodejs questions

Q1. Live peer coding interview
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Q2. Fundamental of JS and clean code architecture
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Q1. Salary expectation
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Q2. Joining date and
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1 hour test conducted by the company

Data structure and all

Q1. Sort array of cards in color red , blue,green
Ans. 
Sort array of cards in red, blue, green colors.
• Use a custom sorting function to sort the array based on color order.

• Assign a numerical value to each color (e.g. red: 0, blue: 1, green: 2) and sort based on these values.

• Implement a sorting algorithm like bubble sort or quicksort to rearrange the array based on color order.
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Q1. Find Target Element in a rotating sorted Array.
Ans. 
Search for target element in a rotated sorted array.
• Use binary search to find the pivot point where rotation happens.

• Divide the array into two subarrays and perform binary search on the appropriate subarray.

• Handle cases where the target element is on the left or right side of the pivot.
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Q1. Basics on Node.js
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Q1. Node.js concepts
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Q2. Schema design
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It was a hacker earth test. The questions i had got was weird and the answer was something along the lines of if(num==2) return "y" else return "N"

Q1. Usual leetcode questions
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Q1. Twitter system design
Ans. 
Twitter is a social media platform that allows users to share short messages called tweets.
• Twitter uses a distributed system architecture to handle high traffic and ensure scalability.

• The system consists of multiple servers for different functions such as user authentication, tweet storage, and search indexing.

• Twitter also uses caching and load balancing techniques to improve performance.

• To handle real-time updates, Tw...read more
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Q2. Api design with filters
Ans. 
API design with filters allows users to retrieve specific data by applying filters to the API request.
• Filters can be applied to different fields in the API request, such as date range, location, or category.

• API design should include clear documentation on available filters and their syntax.

• Filters can be combined to create more complex queries.

• Examples of filter syntax include using operators such as '>', '<', '>=', '<...read more
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Coding test consisting of 2 questions. The first was based on a hash set and the second on a string topic.