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A singleton is a design pattern that restricts the instantiation of a class to one object.
Singleton pattern ensures that a class has only one instance and provides a global point of access to it.
Commonly used in scenarios where only a single instance of a class is needed, such as database connections or logging.
Leetcode Problem: Implement a Singleton Class - Design a class that has a method getInstance() which returns ...
I applied via Recruitment Consultant and was interviewed before Nov 2020. There were 3 interview rounds.
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I applied via Referral and was interviewed before Mar 2021. There were 4 interview rounds.
The OSI model is a conceptual model that describes how data is transmitted over a network.
The model has 7 layers: Physical, Data Link, Network, Transport, Session, Presentation, and Application.
Each layer has a specific function and communicates with the layers above and below it.
The model helps ensure interoperability between different network devices and software.
Example: When you send an email, the application layer...
I applied via Referral and was interviewed in Aug 2021. There were 3 interview rounds.
I applied via Referral
I applied via Recruitment Consultant and was interviewed before Aug 2020. There was 1 interview round.
Integrating monitoring services and deciding third party services based on weightage
Identify key performance indicators (KPIs) for monitoring
Evaluate potential third party services based on KPIs and other factors such as cost and reliability
Assign weightage to each factor based on its importance
Use a scoring system to rank and compare different third party services
Continuously monitor and reassess the performance of th
To design a database with high realtime write operations, consider sharding, indexing, and optimizing queries.
Use sharding to distribute data across multiple servers
Create indexes on frequently queried fields
Optimize queries to reduce write time
Consider using a NoSQL database for faster writes
Use a caching layer to reduce database load
I applied via Naukri.com and was interviewed before May 2020. There were 3 interview rounds.
I appeared for an interview before Feb 2021.
I applied via Naukri.com and was interviewed in Nov 2022. There were 3 interview rounds.
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