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AZ900 > Basics of Azure > Flashcards

Basics of Azure Flashcards

1
Q

What is a resource?

A

A thing that is hosted and used on azure that provides a specific purpose for the user.

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2
Q

What are some examples of resources?

A

VMs
Storage accounts
Functions
App services
Databases
Virtual networks

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3
Q

What is a resource group?

A

A way to group multiple resources together to manage them and organise them.

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4
Q

TRUE OR FALSE: Resources in the same resource group can be stored in separate regions.

A

TRUE

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5
Q

TRUE OR FALSE: A resource can only exist in one resource group at a time.

A

TRUE

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6
Q

What is an azure subscription?

A

A container used to authorize access to azure resources. It stores resources and resource groups.

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7
Q

Where is the cost of all the resources billed?

A

The subscription

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8
Q

What is a Virtual Machine?

A

A software emulation of a physical computer.

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9
Q

What is provided with azure VMs?

A

Virtual processing
Memory and storage
Networking for the VM

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10
Q

What is an app service?

A

A platform to manage, build and deploy web apps and APIs quickly in azure.

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11
Q

What are some examples of web app code structures and languages that app services works with?

A

.NET
.NET core
Node.js
Java
Python
Php

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12
Q

What is a function?

A

A small piece of cost hosted on azure that can be launched and run. It can be set to run by specific events or times.

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13
Q

What is an azure container service?

A

A lightweight virtual environment. It can respond to changes on demand and does not need an OS.

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14
Q

What is the difference between a VM and a Container service?

A

A container service doesn’t need an OS.

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15
Q

What kind of as a service type is azure container instances?

A

PaaS

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16
Q

What is Azure container instances?

A

A PaaS that runs a container in azure without the need to manage a VM or additional services.

17
Q

What kind of as a service type is a VM?

A

IaaS

18
Q

What is a Windows Virtual Desktop?

A

A WVD is a desktop and app virtualization that runs in the cloud. It allows employees to have a workspace while working from home. It creates a full virtual desktop within the need to run additional gateway serves.
It published unlimited host pools.

19
Q

What are the two Azure networking services?

A
  1. Azure Virtual Network (VNet)
  2. Virtual Private Network Gateway (VPN)
20
Q

What does Azure Virtual Network do?

A

It enables azure resources to communicate with each other, the internet and on prem networks that are configured for that network.

21
Q

What is an Azure VPN gateway?

A

A type of virtual network gateway composed of two or more Azure VMs that are automatically configured and deployed to a specific subnet that you create. It allows them to communicate privately together.

22
Q

What are the 4 types of Azure database?

A

Azure Cosmos Database
Azure SQL Database
Azure Database for MySql
Azure Database for PostgreSql

23
Q

What is Azure Cosmos Database?

A

A globally distributed database service that elastically and independently scaled throughput and storage.

24
Q

What is Azure SQL Database?

A

A relational database as a service (DaaS) based on the latest stable version of Microsoft SQL Server.

25
Q

What is Azure Database for MySql?

A

A relational database service in the Microsoft cloud based on the MySql community edition.

26
Q

What is Azure database for PostgreSql?

A

A relational database service based on the open source PostgreSql database engine.

27
Q

What is Azure SQL Managed Instance?

A

An instance that allows existing SQL customers to lift and soft their on prem application to the cloud with minimal application and database changes.

28
Q

What are the benefits of Azure SQL Managed Instance?

A
  1. Fully managed and evergreen platform as a service
  2. Preserves PaaS capabilities (Automatic patching and version updates, automated backups and high availability)
  3. You can quickly lift and sift a database without much hassle
29
Q

What is Azure Marketplace?

A

A place that allows customers to find, try, purchase and provision applications and services from hundred of leading service providers in azure.

30
Q

What are Service Level Agreements (SLAs)?

A

Agreements that describe Microsoft’s commitments for uptime and connectivity for resources. It sets a guaranteed minimum for time the service is available.

31
Q

What happens if a service fails to meet the guarantees set out in its SLA?

A

A percentage of the monthly service fee can be credited for the user.

32
Q

What actions lower your SLAs?

A
  1. Adding more services (This spreads out the SLA guarantees between multiple services)
  2. Choosing free, preview or non-SLA services
33
Q

What factors can raise your SLAs?

A
  1. Specific Availability zones
  2. Redundant systems
34
Q

What is the Azure Preview Program?

A

A place in Azure you can provision, try and test beta and other pre-release/preview features, products, services, software, and regions to provide feedback.

35
Q

TRUE OR FALSE: Previews cannot have SLAs.

A

TRUE
They are not guaranteed to work, so cannot have a guarantee for availability build in.

36
Q

Should you use azure preview features in production environments?

A

No, since they are not finished and require more testing/feedback, they cannot be guaranteed and are not reliable for a production environment.

37
Q

Which version of Azure SQl database for PostgreSQL can scale horizontally?

A

Azure database for PostgreSQL Hyperscale (Citus)

38
Q

How does Azure database for PostgreSQL Hyperscale (Citus) scale horizontally?

A

It splits up large tables of data into smaller parts called shards so that they can be searched through quicker. Makes it so when the database has too much data it can split it up and make it manageable.

39
Q

What is Azure Virtual Machine Scale Sets?

A

A compute resource that lets you deploy and manage and scale multiple identical VMs.

AZ900 (12 decks)

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