Describe Azure compute and networking services
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Questions and Answers

Which configuration allows for high availability by assigning a unique public IP address to each instance?

  • Active/active (correct)
  • Active/backup
  • Active/standby
  • Active/passive

What happens to connections during a failover in the active/standby configuration?

  • Connections are restored within a few seconds (correct)
  • Connections are lost permanently
  • Connections are uninterrupted
  • Connections are restored within 90 seconds

What type of configuration is the default for VPN gateways in Azure?

  • Active/backup
  • Active/standby (correct)
  • Active/active
  • Active/passive

Which programming languages can be used with the WebJobs feature in Azure?

<p>Java, PHP, Python, or Node.js (B)</p> Signup and view all the answers

What can be done using the Mobile Apps feature in Azure?

<p>All of the above (D)</p> Signup and view all the answers

What is the purpose of Azure virtual networks and virtual subnets?

<p>All of the above (D)</p> Signup and view all the answers

How can you enable incoming connections from the internet to an Azure resource?

<p>Both A and B (C)</p> Signup and view all the answers

Which tool in Azure helps you centrally manage, configure, and update a large number of VMs in minutes?

<p>Scale sets (D)</p> Signup and view all the answers

What is the purpose of fault domains in availability sets?

<p>To protect against physical power or networking failure (C)</p> Signup and view all the answers

When would you use virtual machines in Azure?

<p>All of the above (D)</p> Signup and view all the answers

What is Azure Virtual Desktop?

<p>A service for desktop and application virtualization (C)</p> Signup and view all the answers

Which of the following statements is true about Azure Virtual Desktop?

<p>It provides centralized security management with Azure AD (A)</p> Signup and view all the answers

What is a key difference between virtual machines and containers?

<p>Containers can run multiple instances of an application on a single host (B)</p> Signup and view all the answers

Which Azure service allows you to run a container without managing any virtual machines?

<p>Azure Container Instances (C)</p> Signup and view all the answers

What is the benefit of using a microservice architecture with containers?

<p>It allows independent maintenance, scaling, and updating of app components (A)</p> Signup and view all the answers

Which hosting option in Azure allows you to build and host web apps, background jobs, mobile back-ends, and RESTful APIs without managing infrastructure?

<p>Azure App Service (A)</p> Signup and view all the answers

Which hosting option in Azure provides maximum control of the hosting environment and allows you to configure it exactly how you want?

<p>Virtual machine (VM) (C)</p> Signup and view all the answers

Which hosting option in Azure automatically scales and provides high availability, and supports multiple languages including .NET, Java, Ruby, Node.js, PHP, and Python?

<p>Azure App Service (D)</p> Signup and view all the answers

Which hosting option in Azure is an event-driven, serverless compute option that doesn’t require maintaining virtual machines or containers?

<p>Azure Functions (C)</p> Signup and view all the answers

Which of the following is NOT a benefit of using Azure virtual machines (VMs)?

<p>Avoiding the need to configure and maintain software (C)</p> Signup and view all the answers

Which feature in Azure allows you to create and manage a group of identical, load-balanced VMs?

<p>Virtual machine scale sets (C)</p> Signup and view all the answers

What is an image in the context of Azure virtual machines?

<p>A preconfigured VM with an OS and other software (B)</p> Signup and view all the answers

Which of the following is NOT a method to filter traffic between subnets in Azure virtual networks?

<p>Route tables (C)</p> Signup and view all the answers

Which of the following is TRUE about virtual network peering in Azure?

<p>Peering enables resources in each virtual network to communicate with each other. (C)</p> Signup and view all the answers

What is the primary distinction between policy-based and route-based VPN gateways in Azure?

<p>Policy-based gateways specify statically the IP address of packets that should be encrypted, while route-based gateways use IP routing to determine which tunnel interface to use. (A)</p> Signup and view all the answers

Which of the following is a way to maximize the resiliency of a VPN gateway in Azure?

<p>Use route-based VPN gateways for on-premises devices. (A)</p> Signup and view all the answers

Match the following VPN gateway configurations with their descriptions:

<p>Active/standby = Two instances are deployed, with the standby instance automatically assuming responsibility for connections during disruptions. Connections are typically restored within a few seconds for planned maintenance and within 90 seconds for unplanned disruptions. Active/active = Supports the BGP routing protocol. A unique public IP address is assigned to each instance, with separate tunnels created from the on-premises device to each IP address. High availability can be extended by deploying an additional VPN device on-premises.</p> Signup and view all the answers

Match the VPN gateway configurations with their failover characteristics:

<p>Active/standby = Connections are interrupted during failover, but typically restored within a few seconds for planned maintenance and within 90 seconds for unplanned disruptions. Active/active = Failover mechanism involves creating separate tunnels from the on-premises device to each IP address of the instances.</p> Signup and view all the answers

Match the following VPN gateway configurations with their deployment characteristics:

<p>Active/standby = Deployed as two instances, even if you only see one VPN gateway resource in Azure. Active/active = Deployed with a unique public IP address assigned to each instance.</p> Signup and view all the answers

Match the following Azure Virtual Machine (VM) concepts with their definitions:

<p>Infrastructure as a Service (IaaS) = A service model that provides a virtualized server in the cloud VM Image = A template used to create a VM that may already include an OS and other software Virtual Machine Scale Sets = A feature that allows you to create and manage a group of identical, load-balanced VMs Availability Sets = A feature that groups VMs together to provide high availability, scalability, and redundancy</p> Signup and view all the answers

Match the following Azure VM features with their associated benefits:

<p>Total control over the OS = Ability to run custom software Use of custom hosting configurations = Flexibility of virtualization without having to buy and maintain the physical hardware Preconfigured VM image = Ability to create and provision a VM in minutes Grouping of VMs = High availability, scalability, and redundancy</p> Signup and view all the answers

Match the following Azure VM characteristics with their implications:

<p>IaaS offering = Need to configure, update, and maintain the software that runs on the VM Customizable software = Total control over the operating system Rapid provisioning with VM image = Ability to create a VM in minutes Grouping of VMs = High availability, scalability, and redundancy</p> Signup and view all the answers

Match the following Azure tools with their descriptions:

<p>Virtual machine scale sets = Allows you to centrally manage, configure, and update a large number of VMs in minutes Virtual machine availability sets = Designed to ensure that VMs stagger updates and have varied power and network connectivity Update domain = Groups VMs that can be rebooted at the same time Fault domain = Groups your VMs by common power source and network switch</p> Signup and view all the answers

Match the following use cases with their corresponding Azure services:

<p>Running applications in the cloud = Virtual Machines Extending your datacenter to the cloud = Virtual Networks Disaster recovery = IaaS-based approach Desktop and application virtualization service = Azure Virtual Desktop</p> Signup and view all the answers

Match the following Azure VM resources with their descriptions:

<p>Size = Defined by purpose, number of processor cores, and amount of RAM Storage disks = Can be hard disk drives, solid state drives, etc. Networking = Includes virtual network, public IP address, and port configuration</p> Signup and view all the answers

Match the following Azure VM configurations with their corresponding benefits:

<p>Virtual machine scale sets = Automatically deploy a load balancer to make sure that your resources are being used efficiently Virtual machine availability sets = Prevents you from losing all your VMs with a single network or power failure Update domain = Allows you to apply updates while knowing that only one update domain grouping will be offline at a time Fault domain = Helps protect against a physical power or networking failure by having VMs in different fault domains</p> Signup and view all the answers

Match the following Azure services with their descriptions:

<p>Azure Virtual Desktop = Enables multiple concurrent users on a single VM and provides centralized security management Azure Container Instances = Fastest and simplest way to run a container in Azure without having to manage any virtual machines Azure Container Apps = Allows to incorporate load balancing and scaling in the container management Azure Kubernetes Service = A container orchestration service that manages the lifecycle of containers</p> Signup and view all the answers

Match the following features of Azure Virtual Desktop with their functions:

<p>Azure Active Directory = Provides centralized security management for users' desktops Multifactor authentication = Secures user sign-ins Role-based access controls = Secures access to data by assigning granular controls to users Data and apps separation from local hardware = Reduces the risk of confidential data being left on a personal device</p> Signup and view all the answers

Match the following concepts related to containers with their descriptions:

<p>Containers = A virtualization environment where multiple instances can run on a single physical or virtual host Docker = One of the most popular container engines supported by Azure Microservice architecture = An architecture where solutions are broken into smaller, independent pieces for better maintenance and scalability Container orchestration service = Manages the lifecycle of containers and simplifies fleet management</p> Signup and view all the answers

Match the following Azure services with their type of offering:

<p>Azure Virtual Desktop = Desktop as a Service (DaaS) Azure Container Instances = Platform as a Service (PaaS) Azure Container Apps = Platform as a Service (PaaS) Azure Kubernetes Service = Container Orchestration Service</p> Signup and view all the answers

Match the following Azure features with their descriptions:

<p>Route tables = Define rules about how traffic should be directed Network security groups = Azure resources that can contain multiple inbound and outbound security rules Network virtual appliances = Specialized VMs that carry out a particular network function User-defined routes (UDR) = Allow you to control the routing tables between subnets within a virtual network or between virtual networks</p> Signup and view all the answers

Match the following Azure VPN Gateway connectivity options with their definitions:

<p>Site-to-site connection = Connect on-premises datacenters to virtual networks Point-to-site connection = Connect individual devices to virtual networks Network-to-network connection = Connect virtual networks to other virtual networks</p> Signup and view all the answers

Match the following types of VPN gateways with their definitions:

<p>Policy-based VPN gateways = Specify statically the IP address of packets that should be encrypted through each tunnel Route-based VPN gateways = IPSec tunnels are modeled as a network interface or virtual tunnel interface</p> Signup and view all the answers

Match the following Azure features with their primary purposes:

<p>Virtual network peering = Allows two virtual networks to connect directly to each other VPN gateways = Enable connectivity such as site-to-site, point-to-site and network-to-network connections Azure Route Server = Works with Border Gateway Protocol (BGP) to propagate on-premises BGP routes to Azure virtual networks Azure ExpressRoute = Provides a private, dedicated, high-availability network connection to Microsoft's cloud services</p> Signup and view all the answers

Match the following Azure components with their descriptions:

<p>Azure Functions = Event-driven, serverless compute option that scales automatically based on demand Durable Functions = Stateful functions in Azure that pass a context to track prior activity Azure App Service = HTTP-based service for hosting web applications, REST APIs, and mobile back ends Azure App Service WebJobs = Background task runner in Azure App Service</p> Signup and view all the answers

Match the following Azure services with their primary use cases:

<p>Azure Functions = Ideal for work that can be completed quickly, within seconds or less, in response to an event Azure App Service = Hosting web-oriented applications with automatic scaling and high availability Durable Functions = Used when state needs to be maintained across function executions Azure App Service WebJobs = Running background tasks in an Azure App Service environment</p> Signup and view all the answers

Match the following Azure App Service types with their definitions:

<p>Web apps = Supports hosting web apps using various programming languages API apps = Allows building REST-based web APIs with full Swagger support WebJobs = Enables running background tasks in an Azure App Service environment Mobile apps = Used for building mobile backends</p> Signup and view all the answers

Match the following Azure App Service features with their descriptions:

<p>Automatic scaling = Ability to handle varying demand by adjusting resources High availability = Built-in load balancing and traffic manager Continuous deployment model = Automated deployments from GitHub, Azure DevOps, or any Git repo Support for multiple languages = Supports .NET, .NET Core, Java, Ruby, Node.js, PHP, or Python</p> Signup and view all the answers

Match the following Azure features with their descriptions:

<p>WebJobs = Runs a program or script in the same context as a web app, API app, or mobile app Mobile Apps = Quickly builds a back end for iOS and Android apps Azure virtual networking = Enables Azure resources to communicate with each other, with users on the internet, and with on-premises client computers Service endpoints = Connects to other Azure resource types, such as Azure SQL databases and storage accounts</p> Signup and view all the answers

Match the following communication methods with their definitions:

<p>Isolation and segmentation = Allows creation of multiple isolated virtual networks Internet communications = Enables incoming connections from the internet by assigning a public IP address to an Azure resource Communicate between Azure resources = Enables Azure resources to communicate securely with each other Communicate with on-premises resources = Links resources together in your on-premises environment and within your Azure subscription</p> Signup and view all the answers

Match the following connectivity mechanisms with their definitions:

<p>Point-to-site virtual private network connections = From a computer outside your organization back into your corporate network Site-to-site virtual private networks = Links your on-premises VPN device or gateway to the Azure VPN gateway in a virtual network Azure ExpressRoute = Provides a dedicated private connectivity to Azure that doesn't travel over the internet</p> Signup and view all the answers

Match the following Azure resources with their capabilities:

<p>Azure virtual networks = Provide isolation and segmentation, internet communications, communication between Azure resources, communication with on-premises resources, route network traffic, filter network traffic, connect virtual networks Public endpoints = Have a public IP address and can be accessed from anywhere in the world Private endpoints = Exist within a virtual network and have a private IP address from within the address space of that virtual network Azure resources = Can be linked to virtual networks to improve security and provide optimal routing between resources</p> Signup and view all the answers

Which of the following is a high-availability option for ExpressRoute connections?

<p>Configuring a VPN gateway as a secure failover path (C)</p> Signup and view all the answers

What is the purpose of deploying gateways in Azure availability zones?

<p>To physically and logically separate gateways within a region (D)</p> Signup and view all the answers

What is the primary purpose of Azure ExpressRoute?

<p>To extend on-premises networks into the Microsoft cloud (A)</p> Signup and view all the answers

Which of the following is NOT a benefit of using Azure DNS?

<p>Customizable virtual networks (C)</p> Signup and view all the answers

What feature of Azure DNS allows you to seamlessly update DNS resolution when the IP address of the underlying resource changes?

<p>Alias records (B)</p> Signup and view all the answers

Which Azure service is Azure DNS based on?

<p>Azure Resource Manager (A)</p> Signup and view all the answers

How can applications integrate with Azure DNS for automated DNS management?

<p>REST API and SDKs (A)</p> Signup and view all the answers

Which of the following is NOT a benefit of using ExpressRoute connections in Azure?

<p>Lower security (C)</p> Signup and view all the answers

What is the purpose of ExpressRoute Global Reach in Azure?

<p>To exchange data across on-premises sites without using the public internet (C)</p> Signup and view all the answers

Which connectivity model in ExpressRoute allows for integrating wide area networks (WAN) with Azure?

<p>Any-to-any connection (B)</p> Signup and view all the answers

What is the primary security benefit of using ExpressRoute connections in Azure?

<p>Data is not exposed to potential risks associated with internet communications (A)</p> Signup and view all the answers

True or false: ExpressRoute circuits are immune to physical problems that affect the cables delivering connectivity or outages that affect the complete ExpressRoute location.

<p>False (B)</p> Signup and view all the answers

True or false: In high-availability scenarios, you can provision a VPN gateway as a secure failover path for ExpressRoute connections.

<p>True (A)</p> Signup and view all the answers

True or false: In regions that support availability zones, VPN gateways and ExpressRoute gateways can be deployed in a zone-redundant configuration, providing resiliency, scalability, and higher availability.

<p>True (A)</p> Signup and view all the answers

ExpressRoute connections offer slower speeds, inconsistent latencies, and lower security compared to typical connections over the Internet.

<p>False (B)</p> Signup and view all the answers

ExpressRoute enables direct access to Microsoft Office 365, Microsoft Dynamics 365, and Azure compute services in all regions.

<p>True (A)</p> Signup and view all the answers

ExpressRoute Global Reach allows for data exchange between on-premises sites without transferring data over the public internet.

<p>True (A)</p> Signup and view all the answers

ExpressRoute uses the Border Gateway Protocol (BGP) for dynamic routing between on-premises networks and resources running in Azure.

<p>True (A)</p> Signup and view all the answers

True or false: Azure DNS uses anycast networking to provide fast performance and high availability for domains in Azure DNS.

<p>True (A)</p> Signup and view all the answers

True or false: Azure DNS supports private DNS domains, allowing you to use your own custom domain names in your private virtual networks.

<p>True (A)</p> Signup and view all the answers

True or false: Azure DNS supports alias record sets, which can be used to refer to Azure resources and seamlessly update themselves during DNS resolution.

<p>True (A)</p> Signup and view all the answers

True or false: Azure DNS is integrated in the Azure portal and can be managed with Azure PowerShell cmdlets and the Azure CLI.

<p>True (A)</p> Signup and view all the answers

Study Notes

High Availability and Configuration

  • High availability is achieved by using configurations that assign a unique public IP address to each instance.
  • In an active/standby configuration, connections may be disrupted during a failover as the standby instance takes over the public IP address.
  • Default configuration for VPN gateways in Azure is route-based.

Azure Features and Tools

  • WebJobs in Azure can utilize languages such as C#, Python, Node.js, Java, and PHP.
  • Mobile Apps feature in Azure enables development of mobile applications with back-end capabilities.
  • Azure virtual networks and subnets facilitate isolated networking environments for resources.
  • Incoming internet connections to Azure resources can be enabled using Azure Public IP addresses and Network Security Groups (NSGs).
  • Azure Automation is the tool for managing, configuring, and updating multiple VMs quickly.

Availability Sets and Virtual Machines

  • Fault domains in availability sets prevent simultaneous failures by spreading resources across multiple physical hosts.
  • Use virtual machines in Azure for hosting applications that require a full OS or specific configurations.
  • Azure Virtual Desktop provides virtualized desktop and application experience in the cloud.

Virtual Machines and Containers

  • Key difference between virtual machines and containers: VMs run full operating systems while containers share the OS kernel.
  • Azure Container Instances allow for running containers without managing VMs, simplifying deployment.
  • Microservice architecture benefits from containers by allowing modular development, easier updates, and scalability.

Azure Hosting Options

  • Azure App Service for building web apps, backend jobs, and RESTful APIs without infrastructure management.
  • Azure Virtual Machines for maximum control of hosting environments.
  • Azure Functions as a serverless compute option, allowing event-driven coding without managing infrastructure.

VM Features and Networking

  • Azure Scale Sets enable creating and managing pools of identical, load-balanced VMs.
  • An image in the context of Azure VMs is a template that contains the OS and application configurations.
  • Not all methods can filter traffic between subnets; e.g., using NSGs is a valid method.
  • True statements about virtual network peering include its ability to connect Azure virtual networks easily.

VPN Gateways and Connectivity

  • Policy-based and route-based VPN gateways differ mainly in the way they handle traffic routing.
  • Resiliency of a VPN gateway can be maximized by deploying it in an availability zone, providing redundancy.
  • Cloud services facilitate various integration and communication methods essential for modern applications.

ExpressRoute and Azure DNS

  • Azure ExpressRoute offers dedicated connections and improved security compared to typical internet connections.
  • ExpressRoute Global Reach provides a private networking feature that allows data exchange between on-premises sites.
  • Azure DNS supports seamless DNS updates through the use of alias records and can manage DNS via the Azure portal or CLI.

General Azure Benefits

  • True statements clarify that Azure solutions offer fast performance, integration for services (like Office 365), and resilient configurations.
  • Azure provides robust DNS capabilities with anycast networking, private domains, and alias record sets for dynamic resource management.

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Description

"Mastering Azure Networking: A Quiz on Routing and Route Tables" Test your knowledge of Azure networking with this quiz that focuses on routing and route tables. Explore how to control routing, create custom route tables, and work with BGP to propagate on-premises BGP routes to Azure virtual networks.

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