Quikr India Full Stack Web Developer interview questions

Q2. Given a sorted Array A with N element possibly with Duplicates, find the first or last occurrences of an element in O(logN) Time.

II nd Round Q1. Project Related Questions that I have done.

Q2. where to put script Tag in HTML file and why ?

Q3. What is async and defer with script tag and why we used them?

Q4. write a Algo to print following: + * * or + + + + + * + + * + + + + * * for any given value of N.

Q4. what is Lazy Load Imaging Technique?

Q5. How to measure any site performance and what is FPM?

III rd Round : Assignment 1. Application showing list of 20 different items in a page. Each item contain below details i. Random images using https://picsum.photos ii. Some title and Description 2. Use Lazy Load Images 3. Package your App using one of opensource tool like(webPack or gulp etc) 4. plus point in caching js/image using service worker.

IV th Round Q1. Linked List program for insertion and deletion of any node.

Q2. How to find kth smallest element in an array.

Q3. what is proto type in javascript.

Q4. Ask how many sorting algorithms an their respective complexity and their use case.

Q5. Design Question : 1. Given one webserver that can handle upto 6 month SQL Query Data (or else it will give memory error) 2. Suppose we are having multiple SQL tables and that gives output something like { key : k1 date: 31-07-2018 Opening Balance: xxxx Closing Balance : xxxx } There are multiple JSON data in output by SQL Queries. 3. Design schema of tables to handle Queries. 4. Our Task is to find the closing and opening balance between given dates(31-03-2018 and 5-08-2018).

Q5. what is Indexing in SQL and their type with their use cases.