Presidio Solutions Pvt Ltd Interview Questions, Process, and Tips

Coding test was conducted based on full stack development

Q1. Mostly questions asked were based on resume
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Q1. What is Singleton Pattern
Ans. 
Singleton pattern ensures a class has only one instance and provides a global point of access to it.
• Used to restrict the instantiation of a class to one object

• Provides a global point of access to the instance

• Commonly used in logging, caching, thread pools, database connections

• Example: Database connection manager class with a single instance
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Q2. What is Circuit Breaker in Microservices
Ans. 
Circuit Breaker is a design pattern used in microservices to prevent cascading failures.
• Circuit Breaker monitors the availability of a service and prevents requests from being sent if the service is unavailable.

• It helps in improving the resilience of the system by providing a fallback mechanism.

• When the Circuit Breaker is open, it redirects calls to a predefined fallback method or returns an error response.

• Once the ser...read more
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The online test duration was 2 hours for 4 codes and 2 pseudo codes.

Q1. Pattern printing
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Q2. Based on Arrays
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Common topics like sql and 30% aptitude problem

Q1. All about resume
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Q2. About project and area of interest
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Q1. Application building
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