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Lehman Brothers interview questions for popular designations
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posted on 4 Jan 2025
I applied via Naukri.com and was interviewed in Dec 2024. There were 2 interview rounds.
Singleton pattern ensures a class has only one instance and provides a global point of access to it.
Singleton pattern can be implemented by making the constructor private and providing a static method to access the instance.
The pattern can be broken by using reflection to access the private constructor and create multiple instances.
Another way to break the Singleton pattern is by using multiple class loaders in Java.
Th...
HashMap internally uses an array of linked lists to store key-value pairs. To store duplicate keys, we can use a custom implementation of HashMap.
HashMap internally uses an array of linked lists to handle collisions.
To store duplicate keys, we can create a custom HashMap implementation that allows multiple values for the same key.
One approach is to use a HashMap with values as lists, where each key can have multiple va
Use compensating transactions and distributed tracing for managing transaction and logging in case of service B failure.
Implement compensating transactions to rollback changes made by service B in case of failure.
Use distributed tracing to track the flow of requests and identify where the failure occurred.
Implement retry mechanisms to handle transient failures in service B.
Use circuit breakers to prevent cascading fail...
posted on 18 Jan 2025
I applied via Company Website and was interviewed in Dec 2024. There were 3 interview rounds.
posted on 11 Jan 2025
I applied via Naukri.com
posted on 4 Dec 2024
3 coding que easy,med and hard
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