NASDAQ QA Engineer Interview Questions and Answers

Q1. Design A ticketinf system.
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Q1. Design a Parking Lot
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Solve a system design problem in 1 hour

Q1. Search word in a file
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Q2. Design elevator system
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Round duration - 30 minutes
Round difficulty - Easy

Basic questioning about my work experiences, things I have developed and created, my work experience(internships). The challenges which I have faced and how I overcame them. Basic questions about some android concepts

Q1. What puzzles were asked during the interview, and can you describe the projects you discussed?
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Round duration - 45 minutes
Round difficulty - Medium

The interviewer was very friendly and asked about various things and tried to judge my understanding of the projects and how deep I know about the concepts I have implemented in my projects

Q1. RxJava
RxJava
Ans. 
RxJava is a popular library for composing asynchronous and event-based programs using observable sequences.
• RxJava provides a functional API for working with asynchronous data streams.

• It uses Observables to emit items and notify subscribers.

• Operators can be used to transform, filter, and combine these streams of data.

• Schedulers are used to control the threading behavior of these operations.

• Example: Creating an Observabl...read more
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Round duration - 40 minutes
Round difficulty - Medium

This was a system design round

Q1. Can you explain the fragment lifecycle in Android system design?
Ans. 
Fragment lifecycle in Android involves various states and methods for managing UI components.
• Fragments have several lifecycle states such as created, started, resumed, paused, stopped, and destroyed.

• Methods like onCreate(), onCreateView(), onResume(), onPause(), onStop(), onDestroy() are used to manage fragment lifecycle.

• Fragment lifecycle is closely tied to the hosting Activity's lifecycle.

• Example: When a fragment is ...read more
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Q1. Know about Quality problem solving tools?
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Q2. Know about iso tolerance stadard?
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Q3. Know about drawing symbols?
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Q4. What is GD&T and what is use of it?
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GD&T stands for Geometric Dimensioning and Tolerancing. It is a system for defining and communicating engineering tolerances.
• GD&T is used to specify the allowable variations in form, size, and orientation of features on a part.

• It helps ensure that parts fit together properly and function as intended.

• GD&T uses symbols, such as concentricity, flatness, and perpendicularity, to communicate tolerance requirements.

• It is com...read more
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Implement some LLD and use clean code formulas

Better be prepared for all deep dive questions about tech and project you worked

Q1. Self join, primary key foreign key
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