What is cloud computing in a nutshell
Cloud computing is the opposite of on-premise computing. In an on-premise setup, the organization owns the hardware (servers, networking, etc.), hire their own IT experts to manage their data center,…
AWS Architecture Questions and Answers
Distributing workloads across multiple Availability Zones supports which cloud architecture design principle?Design for failure. Which two services can be used across hybrid AWS Cloud architectures? 1. Amazon Route 532. Virtual…
AWS Intrastructure Questions and Answers
How many Availability Zones should compute resources be provisioned across to achieve high availability?A minimum of two Which of the following is a correct relationship between regions, Availability Zones, and…
How to empty a MySQL database
Emptying a databases involves dropping (deleting) all its tables. The easiest way to do this is to drop and recreate a database: Depending on the system you are working, the…
Quick Introduction to React.js
React is an open source JavaScript library created by Facebook and maintained by a large community. It is used for creating views as in V in MVC. It is a…
How to install python on your machine
This post show how to install and run python on Ubuntu Linux system or Mac OS system. It covers python3. Installing and running If you are using Linux, python3 is…
Python Basics
This is a quick introduction to the basics of python programming language. It covers python3. Variables See the following program. Save as datatype.py: To run Output Casting between string, int,…
Object-Oriented Python
Python is a fully object-oriented programming language but it can also be used for scripting. It is assumed that you are already familiar with object-orientation concepts and have experience writing…
Python Error Handling
In Python, you can handle errors with exceptions. The following code will generate an FileNotFound error because the file it is trying to open does not exist: output An error…
Python Regular Expressions
Python uses re library for regular expressions. re comes with standard python installation. Regular expressions is a very big topic. This page only covers the basics of how to search…