Persistent Systems Team Lead Interview Questions, Process, and Tips

JVM is a virtual machine that executes Java bytecode. It manages memory, provides security, and facilitates garbage collection.

• JVM loads the bytecode generated by the Java compiler and interprets it.

• It uses Just-In-Time (JIT) compilation to improve performance by compiling frequently used code into native machine code.

• JVM manages memory through garbage collection, freeing up memory occupied by objects that are no longe...read more

Hash Map is a data structure that stores key-value pairs and uses a hash function to map keys to their corresponding values.

• Hash Map uses a hash function to determine the index of the key-value pair in the underlying array.

• Collisions can occur when multiple keys hash to the same index, which can be resolved using techniques like chaining or open addressing.

• Hash Map provides constant time complexity O(1) for insertion,

Stereo annotation is the process of labeling or tagging images or videos with depth information to create a 3D effect.

• Stereo annotation involves identifying corresponding points in a pair of images or frames to determine depth perception.

• It is commonly used in computer vision tasks such as object detection, tracking, and scene understanding.

• Examples of stereo annotation include creating depth maps for autonomous drivin