General IT/Math

Question 1

What is a load balancer?

Answer 1

Its like a network traffic cop that filter through network traffic and sitting in the front and routs all the data to multiple servers.

Question 2

What is REST API

Answer 2

Representational state transfer, a set of constrains set by developers about how to send a representation of data/state to a endpoint

Question 3

What does the S stand for in the SOLID Principle?

Answer 3

The Single-responsibility principle: “There should never be more than one reason for a class to change.” In other words, every class should have only one responsibility.

Question 4

What does the O stand for in the SOLID Principle?

Answer 4

The Open–closed principle: “Software entities … should be open for extension, but closed for modification.” Add better explaination

Question 5

What does the L stand for in the SOLID Principle?

Answer 5

The Liskov substitution principle: “Functions that use pointers or references to base classes must be able to use objects of derived classes without knowing it.”

For example, if a class Car has the function ShiftGear() and an electric car class is a subclass of Car. Then this ElectricCar would be a violation of this principle.

Question 6

What does the I stand for in the SOLID Principle?

Answer 6

The Interface segregation principle: “Clients should not be forced to depend upon interfaces that they do not use.” Add example

Question 7

What does the D stand for in the SOLID Principle?

Question 8

What is EPM software?

Answer 8

It stands for Enterprise Performance Management?