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.

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 the same instance every time it is called.

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

1st and 3rd Angle method are two different ways to represent orthographic projections in engineering drawings.

• 1st Angle method: Used in Europe and Asia, where the object is imagined to be in the first quadrant.

• 3rd Angle method: Used in North America, where the object is imagined to be in the third quadrant.

• In 1st Angle method, the top view is placed above the front view, while in 3rd Angle method, the top view is placed below the front view.

• Understanding both methods is impor...read more

Sheet metal manufacturing process involves cutting, bending, and assembling metal sheets to create various products.

• Cutting: Using tools like shears, lasers, or plasma cutters to cut the metal sheets into desired shapes.

• Bending: Utilizing press brakes to bend the metal sheets into specific angles and shapes.

• Assembling: Joining the bent and cut metal sheets together using techniques like welding, riveting, or fasteners.

• Finishing: Applying coatings or finishes to improve the ap...read more