Perficient Consultant Interview Questions and Answers

Q1. Interface in golang
Ans. 
Interfaces in Golang define a set of methods that a type must implement.
• Interfaces are a way to specify behavior of an object.

• A type satisfies an interface if it implements all the methods of that interface.

• Interfaces allow for polymorphism in Golang.

• Example: type Writer interface { Write([]byte) (int, error) }

• Example: type MyWriter struct {} func (mw MyWriter) Write(data []byte) (int, error) { return len(data), nil }
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Q1. Coding questions of joy of energy
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Q1. Social media influence
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Two question was asked to solve using PySpark.
Word Count Coding Question was asked with Test Cases.

Q1. Question on PySpark Architecture
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Q2. PySpark Coding Question
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2 DSA questions for extra characterrrrrrrr

Q1. Use round for system design questions
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Q1. Java basics- abstraction, interface, multithreading, garbabge collector etc..
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Q2. Knowledge about design patters, microservices pattern- circuit breaker, distributed training.. etc.
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Q3. Framework like spring boot- basics like autowire, beans, annomations, internal spring working.
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Q1. Code transport management system
Ans. 
A transport management system optimizes logistics, tracking, and fleet management for efficient transportation operations.
• Define user roles: Admin, Driver, Dispatcher.

• Implement route optimization algorithms to minimize travel time.

• Integrate GPS tracking for real-time vehicle location.

• Create a dashboard for monitoring deliveries and fleet status.

• Enable notifications for delays or issues in transport.
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Q2. Basic tree DSA question
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Q3. Design LLD for instagram
Ans. 
Designing a low-level design for Instagram involves creating components for user profiles, posts, feeds, and interactions.
• User Profile: Each user has a profile containing their bio, profile picture, and posts.

• Posts: Users can create posts with images, captions, and tags.

• Feed: A personalized feed shows posts from followed users, sorted by relevance.

• Likes and Comments: Users can like and comment on posts, with notificati...read more
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Pair programming with an assignment

Code pairing round with a developer from Thoughtworks

Q1. Java based questions
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Q2. Project experience
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Q1. Questions on scenario based managerial
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Q2. Social change questions like what's your thought on LGBTQ
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