NASDAQ Software Developer Interview Questions and Answers

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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Opps Java preferred and sql related question.

Q1. Basic questions
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Q2. Future goals and plans
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Practical Question based on case study

Q1. More about the Techno Managerial
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Q2. More about the Techno functional round
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Q3. Technical Question
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Q4. Related to Skills
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Q5. Based on work we did
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3 programs to write in arrays linked lists and trees

Q1. Was asked questions on core Java, spring framework, apis and micro services
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Q1. What expertise will you bring to cme group of you join?
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Q2. Why are you quitting your current company?
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Solve a system design problem in 1 hour

Q1. Search word in a file
Ans. 
Search for a specific word in a file
• Read the file line by line

• Check each line for the search word

• Return the line number if word is found
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Q2. Design elevator system
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Q1. Design A ticketinf system.
Ans. 
Design a ticketing system for managing and tracking tickets.
• Create a user-friendly interface for users to submit tickets.

• Implement a system for assigning tickets to appropriate teams or individuals.

• Include a feature for tracking the status of tickets and updating users on progress.

• Allow for prioritization of tickets based on urgency or impact.

• Generate reports on ticket resolution times and overall performance.

• Integrate...read more
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Q1. Design a Parking Lot
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