AZ-900

Question 1

Disaster Recovery

Answer 1

The ability to recover from a cloud service outage. Cloud services disaster recovery should happen quickly through automation.

Question 2

High Availability

Answer 2

The ability to keep services up and running for long periods of time, while experiencing little to no downtime.

Question 3

Scalability

Answer 3

The ability to increase or decrease resources for a given workload. You can add resources to service a workload (scale out), or add additional capabilities to handle increases in demand (scale up).

Question 4

Elasticity

Answer 4

The ability to automatically or dynamically increase or decrease resources as necessary.

Question 5

Agility

Answer 5

The ability to react quickly. Cloud services can allocate and deallocate resources quickly.

Question 6

Fault Tolerance

Answer 6

The ability to remain up & running even if a component or service is no longer functioning.

Question 7

Predictive Cost

Answer 7

The ability to predict what costs will be incurred for a particular cloud service or offering.

Question 8

Azure Virtual Machines

Answer 8

Choose a VM when you need more control over the computing environment than the other choices offer.

Question 9

Azure Container Instances

Answer 9

Azure Container Instances offers the fastest and simplest way to run a container in Azure, without having to manage any virtual machines.
Great solution for any scenario that can operate in isolated containers, including simple applications, task automation, and build jobs.

Question 10

Azure App Service

Answer 10

Azure App Service is an HTTP-based service for hosting web applications, REST APIs, and mobile back ends.

Question 11

Azure Kubernetes Service

Answer 11

Azure Kubernetes Service (AKS) is a managed Kubernetes offering that simplifies container-based application deployment and management.

Question 12

Azure Functions

Answer 12

Azure Functions allows you to implement your system’s logic into readily available blocks of code. These code blocks are called “functions”. Different functions can run anytime you need to respond to critical events.

Question 13

Internet of Things

Answer 13

A collection of Microsoft-managed cloud services that connect, monitor, and control billions of IoT assets. In simpler terms, an IoT solution is made up of one or more IoT devices that communicate with one or more back-end services hosted in the cloud.

Question 14

Multi-Factor Authentication

Answer 14

Provides added security for user authentications by requiring two or more elements for authentication

Question 15

Application Security Group

Answer 15

Configure network security as an extension of an application’s structure
Reuse your security policies at scale
Azure handles the complexity of explicit IP addresses and multiple rule sets

Question 16

Network Security Group

Answer 16

Filters network traffic to and from Azure resources connected to Azure Virtual Networks.
Consists of inbound and outbound rules
Supports as many rules as necessary, within subscription limits.

Question 17

DevOps

Answer 17

Azure DevOps provides developer services for support teams to plan work, collaborate on code development, and build and deploy applications. Developers can work in the cloud using Azure DevOps Services or on-premises using Azure DevOps Server.

Question 18

Azure Blob Storage

Answer 18

Blob storage is designed for:
Serving images or documents directly to a browser.
Storing files for distributed access.
Streaming video and audio.
Writing to log files.
Storing data for backup and restore, disaster recovery, and archiving.
Storing data for analysis by an on-premises or Azure-hosted service.

Question 19

Azure Files

Answer 19

Fully managed file shares in the cloud that are accessible via the industry standard Server Message Block (SMB) protocol or Network File System (NFS) protocol.
Azure file shares can be mounted concurrently by cloud or on-premises deployments.
Azure Files SMB file shares are accessible from Windows, Linux, and macOS clients.
Azure Files NFS file shares are accessible from Linux or macOS clients.

Question 20

Azure Firewall

Answer 20

Microsoft’s managed network security service in Azure that protects Azure Virtual Network resources.
Uses a static public IP address to represent the virtual network resources behind it.