Quizizz Software Developer Interview Questions and Answers

Q1. About Myself in details
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Q2. Past internships and work experiences
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Q1. Primary keys, Unique key
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Q2. Usage advantages and disadvantages of Indexing
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SQL- 1 departments with no users
2 dept_id and their respective no. of users

DSA1: Most frequent no. in an array
DSA2: Zero Sum subarray exists

Explain about DSA and its example in realtime.

Q1. Java Loop structure
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Q2. While Loop cycle
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A while loop is a control flow statement that allows code to be executed repeatedly based on a given condition.
• While loop continues to execute a block of code as long as the specified condition is true

• The condition is evaluated before each iteration of the loop

• Example: while (x < 5) { // code to be executed }
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Html,Css, javascript,php, front-end etc

Pizza restaurant website

Q1. Javascript related questions
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Q2. React fundamentals and redux and saga function
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Q1. Round with CEO for culture fit
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Q1. What is OOPS concepts.
Ans. 
OOPS concepts refer to Object-Oriented Programming principles like inheritance, encapsulation, polymorphism, and abstraction.
• Inheritance: Allows a class to inherit properties and behavior from another class.

• Encapsulation: Bundling data and methods that operate on the data into a single unit.

• Polymorphism: Ability to present the same interface for different data types.

• Abstraction: Hiding the complex implementation detail
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Q2. What is PDO and uses in PHP.
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PDO stands for PHP Data Objects, a database access layer providing a uniform method of access to multiple databases.
• PDO is a PHP extension that provides a data-access abstraction layer.

• It supports multiple database systems like MySQL, PostgreSQL, SQLite, etc.

• PDO helps prevent SQL injection attacks by using prepared statements.

• It allows for error handling and supports transactions.

• Example: $pdo = new PDO('mysql:host=loc...read more
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Basic Aptitude test

Coding Round is little tough.

Q1. Formal conversation about the projects and all that kind of stuff
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Q2. What kind of project you have worked on
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Q3. How you tackles different project
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2 coding questions with aptitude question(logical aptitude and quantitative aptitude)

This was a Machine Coding. We need to design a system and then they will check our design by running test cases. It was 2.5 hrs long.

Q1. Basic questions on computer core subjects(Deadlock, Networking, Tcp connection, process scheduling etc, DNS Lookup etc)
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Q2. Questions on React, Node and the libraries which I used in my project(My project was a full stack project)
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