WinWire Senior Design Engineer 2 Interview Questions and Answers

First level cache is located inside the CPU core and is smaller but faster, while second level cache is larger but slower.

• First level cache is typically around 32KB-256KB in size and is faster than second level cache.

• Second level cache is larger, around 256KB-8MB, and is slower than first level cache.

• Cache mechanism involves storing frequently accessed data closer to the CPU for faster access times.

Hibernate configuration involves setting up database connection properties and mapping classes to database tables.

• Create a hibernate.cfg.xml file to specify database connection properties

• Define mapping between Java classes and database tables using annotations or XML

• Configure session factory to create sessions for database operations

• Set up transaction management for handling database transactions

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 a single instance of a class is required, such as database connections, logging, or thread pools.

• Example: Singleton pattern can be implemented by creating a static method in a class that returns