AZ-900 - 2022

What is Azure IoT Hub?

- Azure IoT Hub is a managed service that's hosted in the cloud and that acts as a central message hub for bi-directional communication between your IoT application and the devices it manages. - You can use Azure IoT Hub to build IoT solutions with reliable and secure communications between millions of IoT devices and a cloud-hosted solution back end. - You can connect virtually any device to your IoT hub.

What technologies does Microsoft Azure support to provide big data and analytic solutions?

- Azure Synapse Analytics - Azure HDInsight - Azure Databricks - Azure Data Lake Analytics

What are the types of blob storage?

- Block blobs - Append blobs - Page blobs

What are the three types of Azure subscriptions?

- Free trial - Pay as you go - Pay as you go Dev/Test

Azure Cognitive Services can be divided into the following categories...

- Language - Speech - Vision - Decision

Which of the following statements is a valid statement about an Azure subscription? - Using Azure doesn't require a subscription. - An Azure subscription is a logical unit of Azure services.

An Azure subscription is a logical unit of Azure services.

________________________ ensure that your resources are deployed into separate datacenters in a region. There are at least three _______________________ in every region.

Availability zones

What Azure storage solution is ideal for the following situations: - Serving images or documents directly to a browser. - Storing files for distributed access. - Streaming video and audio. - Storing data for backup and restore, disaster recovery, and archiving. - Storing data for analysis by an on-premises or Azure-hosted service. - Storing up to 8 TB of data for virtual machines.

Azure Blob Storage

Which Azure Storage option is better for storing data for backup and restore, disaster recovery, and archiving? - Azure Files Storage - Azure Disk Storage - Azure Blob Storage

Azure Blob Storage

What is Azure Blob Storage?

Azure Blob Storage is an object storage solution for the cloud. It can store massive amounts of data, such as text or binary data. Azure Blob Storage is unstructured, meaning that there are no restrictions on the kinds of data it can hold. Blob Storage can manage thousands of simultaneous uploads, massive amounts of video data, constantly growing log files, and can be reached from anywhere with an internet connection. Blobs aren't limited to common file formats.

You need to create a human-computer interface that uses natural language to answer customer questions. Which product option should you select as a candidate? - Azure Machine Learning - Azure Cognitive Services - Azure Bot Service

Azure Bot Service

You need to identify the content of product images to automatically create alt tags for images formatted properly. Which product option is the best candidate? - Azure Machine Learning - Azure Cognitive Services - Azure Bot Service

Azure Cognitive Services

__________________ is a PaaS service that offers the ability to run a containerized application easily.

Azure Container Instances (ACI)

_____________________________ can distribute traffic from the internet across multiple VMs in your VNet.

Azure Load Balancer

You need to predict future behavior based on previous actions. Which product option should you select as a candidate? - Azure Machine Learning - Azure Cognitive Services - Azure Bot Service

Azure Machine Learning

What is Azure Machine Learning?

Azure Machine Learning is a platform for making predictions. It consists of tools and services that allow you to connect to data to train and test models to find one that will most accurately predict a future result. After you've run experiments to test the model, you can deploy and use it in real time via a web API endpoint.

A company wants to build a new voting kiosk for sales to governments around the world. Which IoT technologies should the company choose to ensure the highest degree of security? - IoT Hub - IoT Central - Azure Sphere

Azure Sphere

What is Azure Sphere?

Azure Sphere creates an end-to-end, highly secure IoT solution for customers that encompasses everything from the hardware and operating system on the device to the secure method of sending messages from the device to the message hub.

Tailwind Traders has millions of log entries that it wants to analyze. Which option would be ideal for analysis? - Azure Cosmos DB - Azure SQL Database - Azure Database for PostgreSQL - Azure Synapse Analytics

Azure Synapse Analytics

What is Azure virtual networking?

Azure virtual networks enable Azure resources, such as VMs, web apps, and databases, to communicate with each other, with users on the internet, and with your on-premises client computers.

What is the first step that you would take in order to share an image file as a blob in Azure Storage? - Create an Azure Storage container to store the image. - Create an Azure Storage account. - Upload the image file and create a container. - Use a Shared Access Signature (SAS) token to restrict access to the image

Create an Azure Storage account.

What is meant by cloud computing? - Delivery of computing services over the internet. - Setting up your own datacenter. - Using the internet.

Delivery of computing services over the internet.

Which of the following options isn't a benefit of ExpressRoute? - Redundant connectivity - Consistent network throughput - Encrypted network communication - Access to Microsoft cloud services

Encrypted network communication

Azure offers a service called _____________________ that can offer speeds up to 10 Gbps over dedicated fiber-optic connections. When you use ________________, you connect from your on-premises network to a Microsoft Enterprise Edge router (MSEE), and that MSEE router then connects you to Azure.

ExpressRoute

True or false: You need to purchase an Azure account before you can use any Azure resources.

False

Azure Functions

Functions are ideal when you're concerned only about the code running your service and not the underlying platform or infrastructure. They're commonly used when you need to perform work in response to an event (often via a REST request), timer, or message from another Azure service, and when that work can be completed quickly, within seconds or less.

Which of the following choices isn't a benefit of using cloud services? - Scalability - Disaster recovery - High availability - Geographic isolation

Geographic isolation

Which of the following can be used to manage governance across multiple Azure subscriptions? - Azure initiatives - Management groups - Resource groups

Management groups

________________________ allow you to assign policies and access control to Azure resources.

Management groups

Azure offers a feature called ____________________ that allow you to enforce rules about what kind of traffic is allowed on the VNet.

Network Security Groups

Which of the following choices isn't a cloud computing category? - Networking-as-a-Service (NaaS) - Platform-as-a-Service (PaaS) - Infrastructure-as-a-Service (IaaS) - Software-as-a-Service (SaaS)

Networking-as-a-Service (NaaS)

Do all regions support availability zones?

No

Traffic between two VNets that use _______________ travels over Microsoft's private backbone infrastructure and not over the Internet; however, unlike a VNet-to-VNet connection, the tragic is not encrypted.

Peering

What type of service is Azure SQL Server Database? - Infrastructure as a Service (IaaS) - Platform as a Service (PaaS) - Software as a Service (SaaS)

Platform as a Service (PaaS)

Kubernetes creates containers in a ____________. A ____________ is a group of related containers, and containers within a _____________ can share resources.

Pod

A _________________ connects your VNet to a single device.

Point-to-site

What is the public cloud?

Public clouds are the most common type of cloud computing deployment. The cloud resources (like servers and storage) are owned and operated by a third-party cloud service provider and delivered over the internet. With a public cloud, all hardware, software, and other supporting infrastructure are owned and managed by the cloud provider.

Fill in the blanks: A _____________ is a logical container for Azure services. By creating all Azure services associated with a particular application in a single ______________, you can then deploy and manage all of those services as a single entity.

Resource Group

Which of the following features does not apply to resource groups? - Resources can be in only one resource group. - Role-based access control can be applied to the resource group. - Resource groups can be nested.

Resource groups can be nested.

What's another name for the private cloud?

Single-tenant environment

A _________________ connection allows you to connect your VNet to an on-premises network using an encrypted VPN connection.

Site-to-site

Tailwind Traders wants to use Azure ExpressRoute to connect its on-premises network to the Microsoft cloud. Which of the following choices isn't an ExpressRoute model that Tailwind Traders can use? - Any-to-any connection - Site-to-site virtual private network - Point-to-point Ethernet connection - CloudExchange colocation

Site-to-site virtual private network

What is Software as a Service (SaaS)?

The cloud provider manages all aspects of the applications environment, the tenant only needs to provide their data to the application managed by the provider (i.e. Office 365, etc.)

Platform as a Service (PaaS)

The cloud provider manages the VMs and networking resources, and the tenant deploys their applications into the managed hosting environment (i.e. Azure App Service, etc.).

Which of the following statements is true? - With Operating Expenses (OpEx), you are responsible for purchasing and maintaining your computing resources. - With Operating Expenses (OpEx), you are only responsible for the computing resources that you use. - With Capital Expenses (CapEx), you are only responsible for the computing resources that you use.

With Operating Expenses (OpEx), you are only responsible for the computing resources that you use.

Can resources be located in multiple regions when they're all in the same resource group?

Yes

When a service is located in a specific availability zone it's known as ________________.

Zonal

Services that are _________________________ span across multiple availability zones within a region automatically.

Zone redundant

What are the benefits of cloud computing?

"GASHED" High Availability - Cloud resources are set up in such a manner that most guarantee 99% uptime. Scalability - Machines and services can be scaled vertically by adding compute capacity to a VM (i.e. CPUs, RAM, etc). Horizontal scaling increase compute capacity by adding entire resources (i.e. VMs, etc.) Elasticity - You can configure cloud-based apps to take advantage of autoscaling so applications will always have the necessary resources. Agility - Because machines and services can be requisitioned and configured on demand you don't have to do as much planning or forward thinking compared to when you purchase a physical machine and have to plan what you may be using it for across its lifespan. Geo-distribution - Apps can be deployed to datacenters around the globe, ensuring users always have the best performance in their region. Disaster Recovery - By taking advantage of cloud-based backup services, data replication, and geo-distribution, you can deploy your apps with the confidence that comes from knowing that your data is safe in the event of disaster.

What are 4 benefits of ARM?

"SECT" - ARM allows you to easily deploy multiple resources at once. - ARM makes it possible to reproduce any deployment with consistent results at any point in the future. - ARM allows you to create declarative templates for deployment instead of requiring you to write and maintain complex deployment scripts. - ARM makes it possible to set up dependencies so that your resources are deployed in the right order every time.

Fill in the blanks: In order to provide Azure services to people around the world, Microsoft has created boundaries called _______________. Within each of these Microsoft has created another logical boundary called a ______________.

- Geographies - Regional Pair

What are the two deployment options for Azure Database for PostgreSQL?

- Single Server - Hyperscale

What types of connectivity does an Azure VPN Gateway enable?

- Site-to-site - Point-to-site - Network-to-network

What are the connection types supported by VPN Gateway?

- Site-to-site - Point-to-site - VNet-to-VNet

Virtual Machines are an ideal choice when you need...

- Total control over the operating system (OS). - The ability to run custom software. - To use custom hosting configurations.

What is Azure Bot Service?

Azure Bot Service and Bot Framework are platforms for creating virtual agents that understand and reply to questions just like a human. Azure Bot Service is a bit different from Azure Machine Learning and Azure Cognitive Services in that it has a specific use case. Namely, it creates a virtual agent that can intelligently communicate with humans. Behind the scenes, the bot you build uses other Azure services, such as Azure Cognitive Services, to understand what their human counterparts are asking for.

What is Azure Cognitive Services?

Azure Cognitive Services provides prebuilt machine learning models that enable applications to see, hear, speak, understand, and even begin to reason. Use Azure Cognitive Services to solve general problems, such as analyzing text for emotional sentiment or analyzing images to recognize objects or faces. You don't need special machine learning or data science knowledge to use these services. Developers access Azure Cognitive Services via APIs and can easily include these features in just a few lines of code.

Your development team is interested in writing Graph-based applications that take advantage of the Gremlin API. Which option would be ideal for that scenario? - Azure Cosmos DB - Azure SQL Database - Azure Databricks - Azure Database for PostgreSQL

Azure Cosmos DB

Tailwind Traders uses the LAMP stack for several of its websites. Which option would be ideal for migration? - Azure Cosmos DB - Azure Database for MySQL - Azure Database for PostgreSQL

Azure Database for MySQL

What is Azure Files?

Azure Files offers fully managed file shares in the cloud that are accessible via the industry standard Server Message Block and Network File System (preview) protocols. Azure file shares can be mounted concurrently by cloud or on-premises deployments of Windows, Linux, and macOS. Applications running in Azure virtual machines or cloud services can mount a file storage share to access file data, just as a desktop application would mount a typical SMB share. Any number of Azure virtual machines or roles can mount and access the file storage share simultaneously.

Which of the following services should be used when the primary concern is to perform work in response to an event (often via a REST command) that needs a response in a few seconds? - Azure Functions - Azure App Service - Azure Container Instances

Azure Functions

What is Azure IoT Central?

Azure IoT Central builds on top of IoT Hub by adding a dashboard that allows you to connect, monitor, and manage your IoT devices.

________________________ offloads the burden of dealing with the Kubernetes master to Microsoft. When you create a Kubernetes cluster in _____________, Azure creates the master and the nodes for you.

Azure Kubernetes Service (AKS)

Azure App Service

With Azure App Service, you can quickly build, deploy, and scale enterprise-grade web, mobile, and API apps running on any platform. You can meet rigorous performance, scalability, security, and compliance requirements while using a fully managed platform to perform infrastructure maintenance. App Service is a platform as a service (PaaS) offering.

Azure virtual networks provide the following key networking capabilities...

"FRIICCC" - Isolation and segmentation - Internet communications - Communicate between Azure resources - Communicate with on-premises resources - Route network traffic - Filter network traffic - Connect virtual networks

What are the 3 access tiers for Azure Storage?

"HAC" - Hot access tier - Cold access tier - Archive access tier

What are the database API types for a Cosmos DB?

"Mc CAG" - Core (SQL) - Mongo DB - Cassandra - Azure Table - Gremlin

How many Azure Resource Groups can an Azure Resource exist in?

1

Infrastructure as a Service (IaaS)

A cloud provider will keep the hardware up-to-date, but operating system maintenance and network configuration is up to the tenant (i.e. Azure VMs). Tenants are not buying the hardware, only renting.

Which of the following is not a feature of Cloud computing? - Faster innovation - A limited pool of services - Speech recognition and other cognitive services

A limited pool of services.

What is a private cloud?

A private cloud consists of cloud computing resources used exclusively by one business or organization. The private cloud can be physically located at your organization's on-site datacenter, or it can be hosted by a third-party service provider. But in a private cloud, the services and infrastructure are always maintained on a private network and the hardware and software are dedicated solely to your organization.

You can mount ___________________ shares on Azure VMs and on-premises on Windows, Linux, and MacOS.

Azure Files

_______________________________ uses VPN connections to enable secure connectivity between an Azure VNet and other networks.

Azure VPN Gateway

Your company has a team of remote workers that need to use Windows-based software to develop your company's applications, but your team members are using various operating systems like macOS, Linux, and Windows. Which Azure compute service would help resolve this scenario? - Azure App Service - Azure Virtual Desktop - Azure Container Instances

Azure Virtual Desktop

What is Azure Virtual Desktop?

Azure Virtual Desktop is a desktop and application virtualization service that runs on the cloud. It enables your users to use a cloud-hosted version of Windows from any location. Azure Virtual Desktop works across devices like Windows, Mac, iOS, Android, and Linux.

Azure Virtual Machines

Azure Virtual Machines provides infrastructure as a service (IaaS) and can be used in different ways. When you need total control over an operating system and environment, VMs are an ideal choice. Just like a physical computer, you can customize all the software running on the VM. This ability is helpful when you're running custom software or custom hosting configurations.

Which of the following is a logical unit of Azure services that links to an Azure account? - Azure subscription - Management group - Resource group - Public cloud

Azure subscription

___________________________ are an IaaS offering where you manage the operating system and configuration.

Azure virtual machines

An ________________________ (often called a VNet) allows Azure services to communicate with each other and with the Internet.

Azure virtual network

Microsoft calls an ExpressRoute connection a ________________.

Circuit

Which of these is NOT a reason for picking a specific region? - Performance - Consumption Cost - Regulatory - Disaster Recovery/Resiliency

Consumption Cost

Containers and Kubernetes

Container Instances and Azure Kubernetes Service are Azure compute resources that you can use to deploy and manage containers. Containers are lightweight, virtualized application environments.

Blobs are stored in storage _____________________.

Containers

Microsoft offers a hosted NoSQL database system in Azure called _____________, which supports all NoSQL database types.

Cosmos DB

Which of the following options isn't a type of cloud computing? - Distributed cloud - Hybrid cloud - Private cloud - Public cloud

Distributed cloud

Tailwind Traders wants to create a secure communication tunnel between its branch offices. Which of the following technologies can't be used? - Point-to-site virtual private network - Implicit FTP over SSL - Azure ExpressRoute - Site-to-site virtual private network

Implicit FTP over SSL

A company wants to quickly manage its individual IoT devices by using a web-based user interface. Which IoT technology should it choose? - IoT Hub - IoT Central - Azure Sphere

IoT Central

You want to send messages from the IoT device to the cloud and vice versa. Which IoT technology can send and receive messages? - IoT Hub - IoT Central - Azure Sphere

IoT Hub

What is cloud computing?

It's the delivery of computing services over the internet, which is otherwise known as the cloud. These services include servers, storage, databases, networking, software, analytics, and intelligence.

__________________ is a container orchestration service. This means that it's responsible for monitoring containers and ensuring that they're always running.

Kubernetes

Fill in the blanks... _______________ are a convenient way to apply policies and access control to your Azure resources. Much like resource groups, _______________ are containers for organizing your resources. However, _______________ can contain only Azure subscriptions or other ______________.

Management groups

Operational Expenditure

Purchasing a resource as we use it, it is consumption based.

Capital Expenditure (CapEx)

Purchasing an asset up front for a full price that we need to use for a certain period of time (i.e. computer, software license, etc.).

A ________________ connection allows you to connect two Azure VNets to each other.

VNet-to-VNet

A ____________________ is a software-based computer that runs on a physical computer.

Virtual machine

Which Azure compute resource can be deployed to manage a set of identical virtual machines? - Virtual machine scale sets - Virtual machine availability sets - Virtual machine availability zones

Virtual machine scale sets

Virtual Machine Scale Sets

Virtual machine scale sets are an Azure compute resource that you can use to deploy and manage a set of identical VMs. With all VMs configured the same, virtual machine scale sets are designed to support true autoscale.

Which of the following options can you use to link virtual networks? - Network address translation - Multi-chassis link aggregation - Dynamic Host Configuration Protocol - Virtual network peering

Virtual network peering

______________________________ makes applications and OSes easily available to multiple users from almost any device.

Windows Virtual Desktop

_____________________ is a PaaS offering in Azure that provides desktop virtualization that is managed by Microsoft.

Windows Virtual Desktop (WVD)