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I applied via Naukri.com and was interviewed in Feb 2024. There were 2 interview rounds.
Hakerrank problem statement to solve
DI and IoC are design principles in software development. RestTemplate is a class for making HTTP requests. Design patterns are reusable solutions to common problems.
DI (Dependency Injection) is a design pattern where objects are passed their dependencies rather than creating them internally.
IoC (Inversion of Control) is a design principle where the control of object creation and lifecycle is inverted to a container or...
SQL is relational database, NoSQL is non-relational. DynamoDB uses primary keys for data retrieval.
SQL is a relational database management system, while NoSQL is a non-relational database management system.
SQL databases use structured query language for defining and manipulating data, while NoSQL databases use various data models like document, key-value, graph, etc.
In DynamoDB, keys are used for data retrieval. Primar...
HashMap is a data structure that stores key-value pairs and allows for fast retrieval of values based on keys.
HashMap uses a hash function to map keys to indices in an array.
Collisions can occur when multiple keys hash to the same index, which is resolved using techniques like chaining or open addressing.
HashMap in Java is a popular implementation that provides constant-time complexity for basic operations like get and
Circuit Breaker design pattern is used to prevent a system from repeatedly trying to execute an operation that is likely to fail.
Circuit Breaker pattern is used to handle faults in distributed systems by providing a way to fail fast and prevent cascading failures.
It monitors the number of failures and once a threshold is reached, it opens the circuit and stops executing the operation.
After a certain period of time, the...
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