AZ900 Total Study Cards Flashcards
Capital Expenditure (CapEx)
one-time up front expenditure to purchase or secure tangible resources
Operational Expenditure
spending money on services or products over time. (example renting convention center, leasing a company vehicle)
What is cloud computing
Delivery of computing services over the Internet
Which cloud model uses datacenter focused on providing cloud services to anyone that wants them, and some data centers that are focused on a single customer?
Hybrid cloud
According to the shared responsibility model, which cloud service type places the most responsibility on the customer?
IaaS
Vertical Scaling
Adding more CPU or RAM to VM
Horizontal Scaling
Add more Virtual Machines or containers
Infrastructure as a Service (IaaS)
Cloud provider is responsible for maintaining hardware, network connectivity, and physical security.
Customer is responsible for OS, Install, configuration, and maintenance, network config, database, and storage configuration.
In essence you are renting the hardware in the cloud datacenter.
Platform as a Service (PaaS)
Cloud provider maintains physical infrastructure, physical security, and connection to the internet, OS, middleware, development tools, and business intelligence services.
Region
geographical area on the planet that has one or multiple datacenters nearby
Availability Zone
physically separate datacenter within a region. Each one is made up of one or more data centers. Its intended to be an isolation boundary
Region pair
paired with another within the same geography at least 300 miles away
sovereign regions
isolated from main instance of Azure for compliance or legal purpose
i.e. US government
Azure subscriptions
unit of management, billing and scale.
allow you to logically organize resource groups and facilitate billing
Billing boundary
how an Azure account is billed for using Azure
Access control Boundary
applies access management at the subscription level.
Management Group
level of scope above subscriptions
Resources are gathered into ___ ___
Resource groups
Resources groups are gathered into ___
Subscriptions
Azure VM Scale Sets
allows you to centrally manage configure, and update large number of VMs in minutes.
T/F Virtual Machine scale sets do not automatically deploy a load balancer.
False - Scale sets can ensure your resources are being used efficiently
Update Domain
they can be rebooted at the same time. Allows you to apply updates while knowing that only one update domain grouping will be offline at a time. Given a 30 min time to recover before maintenance on the next update starts
