vijayanandgawle

This section is based on the list from  Microsoft website  which is quite accurate to the exam. Refer: https://github.com/AzureMentor/Azure-AZ-900-Study-Guide There are 4 main parts. For each part, I am giving summarised information here to speed up your learning or you can also use them as revision material. Part 1) Cloud Concept This part contains general knowledge about cloud computing e.g. what are the benefits of cloud, the differences types of cloud service offering, and the differences in cloud deployment models. Technological benefits of cloud: High Availability  — The major cloud providers (Azure, AWS, GCP) have multiple data centers spread around throughout the world. Data and code stored in the cloud are copied to more than one data center. If anything happens to one data center, the data can be recovered from another data center. Fault Tolerance  — In case there is any fault in the application or infrastructure, the service can continue to work by moving the w

Regions / Availability Zones (AZs) Regions : AWS Geographical regions like US East, US West, EU Central etc Availability Zones : Distinct data centres that host the physical compute and other resources for AWS (AWS ensures a minimum of 2 AZs per region). They are often separated with each other but a geographical calamity could still impact/disrupt services on both Edge Locations : Each Region further consists of many edge locations which basically serve cached data for frequent access from nearby users. Edge location can also be used to write data (For eg. in S3 Transfer Acceleration) As of today there are approximately 15 regions, 45 AZs and ~100+ Edge locations fronted by Cloudfront. Sometimes edge locations could also be operated/managed by AWS partner network Route53 Fun fact : In Route53, ‘Route’ comes from Route 66 — Oldest inter state highway in the United States, and port 53 used by DNS in Computer Networking It is used for resolving DNS names to IP addr