Introduction Flashcards
(91 cards)
What ARM stand for?
Azure Resource Manager
What RBAC stand for?
Role-based Access Control
Two deployments models in Azure
- ASM - Azure Service Model (old)
- ARM - Azure Resource Model (new)
Can resources be provisioned on different Azure regions and belong to the same resource group?
YES
Does every resource need to be a part of resource group?
YES
What is Idempotent feature?
Ensures predictability, standarization and consistency in resource deployment by ensuring that every deployment will result in the same state of resources and configuration, no matter the number of times it is executed
What technology is Azure running on?
Azure runs on a customized version of Hyper-V. It’s fairly close to Hyper-V core in construct or theory, but that’s where all the similarities end.
Four ways to interact with Azure
- Azure Portal
- PowerShell
- CLI
- REST API
Feature to ensure that applications are still available even when a data center goes down.
Availability zones.
Feature to provide provide redundancy at a data center level, similar to locally redundant storage
Availability sets
What is Azure fault domain?
A fault domain is a logical group of underlying hardware that share a common power source and network switch, similar to a rack within an on-premises datacenter. As you create VMs within an availability set, the Azure platform automatically distributes your VMs across these fault domains.
What is availability set?
An Availability Set is a logical grouping capability for isolating VM resources from each other when they’re deployed. Azure makes sure that the VMs you place within an Availability Set run across multiple physical servers, compute racks, storage units, and network switches.
What is Azure update domain?
An update domain is a logical group of underlying hardware that can undergo maintenance or be rebooted at the same time. As you create VMs within an availability set, the Azure platform automatically distributes your VMs across these update domains.
What is Azure Availability Zones?
Availability Zones is a high-availability offering that protects your applications and data from datacenter failures. Availability Zones are unique physical locations within an Azure region. Each zone is made up of one or more datacenters equipped with independent power, cooling, and networking
Two Azure features for load balacing?
- Load Balacers (layer 4)
- Application Gateways (layer 7)
What is Cookie-based session affinity?
Feature in Application Gateway feature in which all subsequent requests following the first request should be processed by the same service instance
What is Secure Sockets Layer (SSL) offload?
SSL offload helps in transferring cryptography processing from the web server to the load balancer, thereby providing more resources to web servers serving users.
What is End-to-end SSL?
Application Gateway feature which allows mission-critical secure applications that need complete SSL encryption and decryption even if traffic passes through load balancers.
What is URL-based content routing?
Application gateway traffic redirection based on the URL content of incoming requests.
Packet fields used for load balancing in Azure?
- Originating IP address
- Target IP address
- Originating port number
- Target port number
- Type of the protocol (TCP, HTTP, etc.)
What is Azure Traffic Manager?
Traffic Manager helps us to create highly available solutions that span multiple geographies, regions, and data centers. It uses DNS to redirect requests to an appropriate endpoint .
What is VM scale sets (VMSS)
Azure compute resource that you can use to deploy and manage a set of identical VMs.
What is max number of VM in VMSS (VM Scale Sets)
- 1,000 VMs when using a platform images
- 100 VMs if using a custom image
How Authentication is performed in Azure?
OpenID Connect