Wabtec Enterprise Architect Interview Questions and Answers

Stack is used for static memory allocation, while heap is used for dynamic memory allocation.

• Stack is faster than heap because of its memory allocation and deallocation process.

• Stack has limited size and memory is managed in a Last In First Out (LIFO) manner.

• Heap has a larger size and memory is managed in a more complex way, allowing for dynamic memory allocation.

• Variables stored on the stack have a limited scope, whil...read more

The OSI model is a conceptual framework that standardizes the functions of a communication system into seven layers.

• The OSI model stands for Open Systems Interconnection model.

• It was developed by the International Organization for Standardization (ISO) in 1984.

• The model divides the communication process into seven layers, each with its own specific functions and protocols.

• The layers are: Physical, Data Link, Network, T...read more

Discrete components are individual electronic components that are separate and distinct from each other.

• Discrete components are used to build electronic circuits.

• They are separate and distinct from integrated circuits.

• Examples of discrete components include resistors, capacitors, transistors, and diodes.

Types of fire extinguishers include water, foam, CO2, dry powder, and wet chemical.

• Water extinguishers are suitable for Class A fires (wood, paper, textiles)

• Foam extinguishers are suitable for Class A and B fires (flammable liquids)

• CO2 extinguishers are suitable for Class B and electrical fires

• Dry powder extinguishers are suitable for Class A, B, and C fires (flammable gases)

• Wet chemical extinguishers are suitable for ...read more