Questions Flashcards
Explain IaaS Infrastructure as a Service
Renting server resources (CPU, Mem, Disk) from a Cloud provider. Eg; Azure Virtual Machines and Container Services, allows access to underlying OS
Expain PaaS Platform as a Service
Renting server platforms to run code on. Eg: Azure SQL Databases, App Services, CDN. No access to underlying OS
Explain FaaS Function as a Service
PaaS for event-driven serverless computing. Eg: Azure Functions
What is Azure App Services?
Fully Managed service for running Web, API, Mobile, Logic, and Function apps
What is a Site-to-Site VPN used for?
Connecting on-prem environments to Azure services
What is a P2S Point-to-Site VPN used for?
Connecting a single device to Azure services securely
What is a VNet Peering Connection used for?
Connecting services in separate virtual networks together
What is Azure Monitor used for?
Collecting, Analyzing, and Acting on status events for Azure and on-prem services. Basically Zabbix.
What is Azure Resource Manager Templates?
Infrastructure as Code for Azure. Similar to Terraform.
What is Azure Resource Manager?
The API Layer used for all interactions with Azure services, used for creating/deleting/modifying/managing Azure services via console, cli, or script
What is Azure Events Hub?
PaaS for ingesting and processing streaming data, compatible with Kafka
What is Azure Advisor used for?
Checking Azure environment for best practices, advises on optimising cost, performance, reliability, and security
What’s the difference between Availability Sets and Scale Sets?
Availability sets define hardware redundancy (across physical networks, AZ’s, etc). Scale Sets are groups of autoscaling VM’s
What platforms is Azure Powershell available on?
Windows, Mac, and Linux
What is Azure Blob?
Object cloud storage, similar to Amazon S3
What is Azure Disks?
Block level storage volumes that can be attached to VM’s
What is Azure Tables?
Structured NoSQL datastore
What is Azure Files?
NFS stores that can be accessed via SMB
What are VNet Service Endpoints used for?
Connecting Azure services in the same region via private/backend networking
What’s the difference between a Site-to-Site VPN and ExpressRoute?
Site-to-Site goes over public internet, ExpressRoute uses private connections
What is a Network Security Group and what resources can be attached to it?
A list of Allow/Deny rules for traffic going in/out of Azure Resources. Can be attached to a Subnet or a Network Interface
Does Azure charge for Inbound or Outbound Traffic?
Inbound is free. Outbound is charged per GB
What tool can be used to identify idle and underutilized resources?
Azure Cost Management + Billing
What is a Azure Blueprint?
A set of Groups, Policies, ARM Templates, and Roles, used to set up an Azure infrastructure, iterate over it, maintain relationships and versioning