Arwade Infrastructure Information Technology Support Engineer Interview Questions and Answers

Object-oriented programming principles like inheritance, encapsulation, polymorphism, and abstraction.

• Inheritance allows a class to inherit properties and behavior from another class.

• Encapsulation restricts access to certain components within a class.

• Polymorphism allows objects to be treated as instances of their parent class.

• Abstraction hides complex implementation details and only shows necessary features.

Design patterns are reusable solutions to common problems in software design.

• Design patterns provide a template for solving recurring design problems in software development.

• They help in making code more maintainable, scalable, and easier to understand.

• Examples of design patterns include Singleton, Factory, Observer, and Strategy patterns.

Bentonite is used as a drilling fluid to stabilize boreholes before pulsing.

• Bentonite is mixed with water to form a slurry and pumped into the borehole.

• The slurry fills the borehole and stabilizes the walls, preventing collapse.

• After the bentonite has set, pulsing can be done without the risk of borehole collapse.

• Pulsing is a technique used in geophysical exploration to measure the properties of the subsurface.