Microsoft Certified: Azure IoT Developer Specialty (AZ-220) Practice Test

Browse all practice questions for the Microsoft Certified: Azure IoT Developer Specialty (AZ-220) Practice Test. Search by topic, open any question and review its full explanation, then test yourself in the practice quiz.

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Creating a Device ID in Azure IoT Hub with Azure CLIWhat is required to create a new device ID in Azure IoT Hub using the Azure CLI?Discover the Steps to Create a Device Template in Azure IoT CentralHow can you create a device template in IoT Central?Discovering the Average: A Deep Dive into Azure IoT Developer MetricsGiven the values 6, 4, 5, 0, 12, -1, -2, 0, 4, 2, what is the average of these metrics?Explore Device Flexibility in Azure IoT CentralWhat type of devices can you add to an IoT Central application?Explore how Azure IoT excels in managing device sensor dataWhich type of data can Azure IoT help manage and analyze effectively?Explore the Importance of the Location Tile in Azure IoT Central DashboardsWhen creating a dashboard in Azure IoT Central, which tile is recommended to expand for better visibility?Explore tools for automating IoT device managementWhich tool can be used to automate the management of IoT devices?Exploring Different Sensor Types for Commercial ApplicationsWhich is NOT a type of sensor mentioned for commercial applications?Exploring the Key Patterns of IoT Edge Devices as GatewaysWhat are the three primary patterns for using an IoT Edge device as a gateway?Finding Your Way to the Service Connection String in Azure IoT HubTo locate the service connection string in IoT Hub, which left-hand menu entry should you select?Generating a Bearer Token in Azure IoT Central Made EasyHow can a bearer token be generated in Azure IoT Central?How Regular Firmware Updates Keep Your IoT Devices Secure and FunctionalWhat is a simple way to ensure that IoT devices are kept up-to-date?How to Efficiently Manage IoT Devices Using Azure CLI ScriptsWhat is the recommended method for creating Automatic Device Management configurations at scale?How to View Hub Keys in Azure IoT Hub ProperlyWhat option on the left menu do you select to view the hub keys?Learn the Right Command for Creating Device Management Configurations in Azure CLIWhat is the correct command to create a new Device Management configuration using the Azure CLI?Learning to Configure Connection Strings on IoT Edge DevicesHow can the connection string be configured on an IoT Edge device?Recommended Configuration Patterns for Legacy Devices in Azure IoTWhich configuration patterns are recommended for legacy devices without native support for MQTT/AMQP/HTTP?Understand how diagnostic settings in Azure IoT Hub route telemetry and logs to monitoring destinationsWhat is the role of diagnostic settings in managing Azure IoT Hub?Understand What Data Azure Stream Analytics HandlesWhat type of data does Azure Stream Analytics primarily process?Understanding Audit Logs in Azure IoT Central ApplicationsWhat type of logs can also be exported from IoT Central applications?Understanding Azure Security Center features for IoT security managementWhat is required to fully utilize features of Azure Security Center for IoT?Understanding Data Export Options in Azure IoT CentralWhat type of data can you export from IoT Central?Understanding Device Identity Management in Azure IoT HubWhich option provides the ability to manage device identities in IoT Hub?Understanding Device Management Configurations in the Azure PortalCan Device Management configurations be set up in the Azure portal?Understanding Device Template Capabilities in Azure IoTWhich capability types are included in a Device Template?Understanding Device Twin Properties in Azure IoT SolutionsWhen setting up a Device Twin Property field, what must prefix the value?Understanding Diagnostic Settings in Azure IoT HubWhat type of information do diagnostic settings in Azure IoT Hub send to their destinations?Understanding Direct Method Invocation in Azure IoT DevelopmentWhat is the purpose of invoking a direct method in an IoT connected environment?Understanding Direct Methods in Azure IoT ApplicationsHow is a direct method identified in the back-end app?Understanding Hierarchical Namespaces in Azure Data Lake Gen 2What feature does Data Lake Gen 2 storage add for better data organization?Understanding How Azure Functions Handle Fluctuating Demand in IoTWhich benefit of Azure Functions for IoT helps manage fluctuating demand?Understanding How Device Templates Empower Azure IoT Central DevelopmentWhat feature allows for the building of custom capability models in IoT Central?Understanding How to Export Telemetry Data with Azure Service BusWhich service can telemetry data be exported to?Understanding How to Generate Your First API Token in IoT CentralWhere can the first API token be generated in IoT Central?Understanding How to Handle Direct Method Errors in Azure IoTWhen handling direct method errors, which condition should be reported?Understanding HTTP Trigger in Azure Functions and how triggers shape serverless workWhich of the following is an example of a trigger type for Azure Functions?Understanding Key Metrics in Azure IoT Hub's FunctionalityWhich metric is NOT typically recorded by Azure IoT Hub?Understanding mechanical vibration and the role of g-forcesWhich measurement unit is commonly used to quantify mechanical vibration?Understanding Minimum and Maximum Values in Data SetsWhat is the minimum and maximum value of the following metric values: 6, 4, 5, 0, 12, -1, -2, 0, 4, 2?Understanding Proof of Possession in X.509 CertificatesWhat does Proof of Possession verify in the context of X.509 certificates?Understanding REST API Capabilities for Device Templates in Azure IoT SolutionsWhat can you do with the REST API concerning device templates?Understanding root and leaf certificates in Azure IoTWhich statement accurately describes the use of root and leaf certificates?Understanding Secure and Aggregated Messaging in Azure IoT Edge DevicesIn the transparent pattern configuration of an IoT Edge device, what benefit does it provide?Understanding Secure Communication Protocols for IoT Gateway ConnectionsWhat type of identity translation is used for connecting downstream devices to IoT Hub via a gateway?Understanding session consistency: immediate writes with varying update latencies in distributed systemsWhich consistency level allows for immediate data writes but varying latencies in updates?Understanding Target Devices Condition in Device Management ConfigurationsWhat can the Target Devices condition include when creating a device management configuration?Understanding the Alert Status Sequence in Azure IoT HubWhat is the sequence of statuses that triggered alerts go through in Azure IoT Hub?Understanding the Core Elements of a GeopointInternally, what elements make up a Geopoint?Understanding the Data Flow in Azure Stream AnalyticsWhat is the typical data flow in Azure Stream Analytics?Understanding the Default Allocation Policy for Azure IoT Device Provisioning ServiceWhat is the default allocation policy for Azure IoT DPS systems?Understanding the Device Connection String for Azure IoT Downstream DevicesWhat components form the device connection string for a Downstream Device?Understanding the Disadvantages of X.509 Certificates: What You Need to KnowWhat is a significant disadvantage of using X.509 certificates?Understanding the Essential Components of Non-Time-Aggregated Rule Conditions in Azure IoTWhich three components are required for a non-time-aggregated rule condition?Understanding the Functionality of a Data Simulation Module in Azure IoTHow can a company ensure that a data simulation module is functioning correctly?Understanding the Functions of the IoT Central REST APIWhat is one of the functions of the IoT Central REST API?Understanding the Global Device Endpoint for Azure Device Provisioning ServiceWhat is the Global Device Endpoint for Azure Device Provisioning Service?Understanding the Importance of Ambient Conditions Data in IoTWhat kind of data should a company ensure is simulated in addition to temperature data?Understanding the Importance of Device Identity Properties in Azure IoTWhich of the following is a characteristic of device identity properties?Understanding the Importance of Port 8883 for MQTT on IoT Edge DevicesWhat is the designated port number for MQTT transport on IoT Edge devices?Understanding the Importance of Publishing Device Templates in Azure IoTWhat control is necessary to make a device template available for use?Understanding the Importance of Regular Firmware Updates for IoT DevicesHow often should firmware updates be applied to IoT devices?Understanding the Importance of Simulating Ambient Conditions in IoT Sensor EnvironmentsWhy is it important to simulate ambient conditions in a sensor environment?Understanding the Key Capabilities of the IoT Central REST APIWhat is one of the capabilities of the IoT Central REST API?Understanding the Key Metrics in Azure IoT HubWhich two metrics are shown by default on the overview page for your IoT hub?Understanding the Key Properties Required for Creating an Azure IoT Edge DeviceWhich two properties are required when creating a new virtual IoT Edge device?Understanding the Key Role of Azure IoT Hub in Device CommunicationWhat does the Azure IoT Hub enable in relation to IoT devices?Understanding the Key Tabs in Azure's Message Routing ConfigurationWhat are the primary tabs available in the message routing configuration pane?Understanding the Limitations of the IoT Central REST APIWhich capability does the IoT Central REST API NOT provide?Understanding the Purpose of the Device Provisioning Service in Azure IoTWhat is the main purpose of the Device Provisioning Service?Understanding the Role of 'device_ca_cert' in IoT Edge Gateway ConfigurationWhat does the 'device_ca_cert' entry refer to in the context of IoT Edge Gateway configuration?Understanding the Role of an Application Builder in Azure IoTWhich role allows an application builder to create, edit, or delete device templates?Understanding the Role of Azure CLI in Creating IoT Central ApplicationsWhat is the purpose of the Azure CLI in relation to IoT Central?Understanding the Role of Azure IoT Hub in Device ProvisioningIoT Hub is suitable for managing IoT devices at scale because it can:Understanding the Role of Certificates in IoT SecurityWhat type of certificate is directly chained to the root certificate in Group Enrollment?Understanding the Role of Heartbeats in IoT TelemetryWhat does a heartbeat represent in the context of IoT telemetry?Understanding the Role of Network Security Groups in AzureWhich Azure resource is used to manage inbound and outbound port access to Azure Virtual Machines?Understanding the Role of Parent Devices in Azure IoT Edge CommunicationWhat is the role of the parent device when configuring a downstream device in an IoT Edge setup?Understanding the Role of Resource Groups in Azure IoT SolutionsWhat is the primary function of a Resource Group in an Azure IoT solution?Understanding the Role of the IoT Edge Agent in Edge RuntimeWhat is the role of the IoT Edge agent in the IoT Edge runtime?Understanding the Role of the IoT Edge Hub in Device CommunicationWhat component of the IoT Edge runtime manages communications between modules on the device?Understanding the Role of the IoT Edge Security DaemonWhat is one of the key features of the IoT Edge security daemon?Understanding the Role of the Security Module Twin in Azure IoT SolutionsWhat is the purpose of the security module twin in Azure Security Center for IoT?Understanding the Role of Time Series Insights in Azure IoTWhat is the primary function of Time Series Insights?Understanding the Role of Triggers in Azure FunctionsWhat does the trigger in an Azure Function do?Understanding the Structure of Connection Strings in Azure IoT HubAll connection strings for Azure IoT Hub begin with what text?Understanding the Unique Role of Tags in Azure IoT Device TwinsWhat type of device twin property is not visible to the device itself?Understanding What Applications Can Benefit from IoT EdgeWhat type of applications can leverage the capabilities of IoT Edge?Understanding What Every REST API Call to Azure IoT Central Must IncludeWhat must every REST API call to an Azure IoT Central application contain?Understanding Which Data Sources Connect with Time Series InsightsWhich of the following sources cannot be directly connected to Time Series Insights?Understanding Why Truck Location is Telemetry in Azure IoT CentralIs the location of the truck considered a Property or Telemetry in IoT Central?Understanding Writable Properties in Azure IoT CentralWhich method best describes the interaction of writable properties with the IoT Central app?Understanding Writable Properties in Azure IoT CentralWhat characterizes a writable property in IoT Central?What You Need to Know About Visualizations in Time Series InsightsWhat are the three visualizations available in Time Series Insights?Why an Azure Maps Account is Key for IoT Developer EfficiencyWhy is an Azure Maps account necessary in this module?Why Azure Key Vault and HSM Are Essential for Secure Password ManagementIn a production environment, where should passwords and certificates be stored for security?Why IoT Devices Face Heightened Security ThreatsWhat is a primary reason IoT devices are exposed to more security threats?
More practice questions

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  • What type of storage is required for unlimited retention of data?
  • What is Azure Stream Analytics specifically used for?
  • How can a company verify that a data-simulating module is operational?
  • Which type of telemetry might you use to monitor the temperature of a container?
  • How does Azure Functions for IoT charge users for resource usage?
  • What are the types of Blob Storage available in Azure?
  • What common feature is associated with over-the-air firmware updates for IoT devices?
  • What do manufacturers generally provide for IoT firmware updates?
  • What does the 'az iot hub configuration show-metric' command return?
  • What type of data can IoT Central collect and analyze?
  • Which component of IoT Edge would you use to monitor the health of IoT devices?
  • What aspect of IoT does Azure IoT Hub mainly focus on improving?
  • In which unit is conveyor belt vibration commonly measured?
  • Can one rule in Azure IoT Central trigger multiple actions?
  • How can you retrieve the list of API tokens in an IoT Central application?
  • Which command correctly identifies the process for updating a device's firmware?
  • Which functionality does the IoT Edge runtime provide?
  • What is one of the ways to create azureiotsecurity module twins?
  • What are Azure IoT Hub logs derived from?
  • Is an API token in IoT Central associated with a specific user?
  • What is the primary purpose of Azure Event Hubs?
  • What is the maximum value of temperatures ranging from -2 degrees to -10 degrees in a specified time period?
  • Which Azure service provides support for event ingestion from IoT devices?
  • What does the Azure IoT solution primarily collect for actionable insights?
  • Which command is used to create a new IoT Hub using Azure CLI?
  • Which property is used to store device tags in Azure IoT Hub?
  • What kind of data retention policy is associated with Cold storage?
  • What differentiates natural vibration from other types of vibration?
  • What tool can you use to set up Device Management configurations aside from the Azure portal?
  • What type of property in a device twin reflects current values of device settings?
  • What is the primary function of a Device Twin in Azure IoT?
  • What is the first step in managing device groups with Device Twins tags?
  • Which authentication type is commonly recommended for production environments in IoT Central?
  • Which statement is true regarding direct methods in Azure IoT?
  • Which role in IoT Central grants access to all API calls?
  • Which Azure service is designed specifically for real-time analytics?
  • When charting metrics in the Azure portal, what is selected first?
  • What is the primary objective of analyzing time-stamped data with Time Series Insights?
  • What do security groups in Azure IoT facilitate?
  • What is the main difference between a failover region and a secondary read region?
  • What type of information do device twin tags contain?
  • Which of the following does a device template specify about a connected device?
  • Which of the following is not considered an action type in Azure IoT Hub?
  • What is the output type of telemetry data?
  • What capability does Azure Functions for IoT provide that contributes to managing large-scale applications?
  • Which type of storage allows for faster queries on the latest data?
  • Which of the following characteristics of Azure Functions aids in scalability?
  • Which IoT subsystem consumes data, integrates with business processes, and places the data in storage?
  • What is the process of authenticating devices to IoT Central known as?
  • How does a C# device app indicate if the conveyor belt has stopped for more than 5 seconds?
  • What is an Azure Function primarily used for in regards to IoT Hub alerts?
  • Which Azure service allows for the ingestion of millions of events per second?
  • What additional data should be monitored apart from temperature in a sensor setup?
  • Which command is used to create an IoT Edge device in Azure?
  • How does IoT Edge ensure application functionality during intermittent connectivity?
  • What are some risks involved in updating IoT device firmware?
  • Which common IoT challenges do customers often face that Azure IoT can help address?
  • Which of the following actions can be included in an Azure IoT Hub action group?
  • What is a key characteristic of forced vibration in structures?
  • How is the scope of a chart set when visualizing metrics in Azure?
  • What makes IoT Edge suitable for running machine learning applications?
  • Which of the following descriptions best describes how IoT works?
  • Is IoT Hub an Azure service that allows back-end developers to build remote device-management solutions?
  • What is a recognized weakness of self-signed certificates?
  • What type of information is NOT typically included in a device template?
  • Which action can the IoT Central REST API not perform directly on devices?
  • What is the purpose of interface definitions in a device template?
  • True or False: You can't receive telemetry data in the Azure portal when using the Raspberry Pi Azure IoT simulator.
  • What feature of IoT Central allows sending data to other services for analysis?
  • Which tier of IoT Hub should you use for distributed processing requirements?
  • Which of the following is NOT an action type for IoT Hub alerts?
  • What is a primary role of a device template in IoT Central?
  • What type of service is Azure IoT Central?
  • An IoT Hub name must be unique across which space?
  • What is a valid destination for a continuous data export from IoT Central?
  • What is the purpose of the Name attribute in Device Template elements?
  • What must the back-end app prepare for invoking a direct method?
  • What is a characteristic of an Append Blob in Azure?
  • How does a Stream Analytics job operate on input data?
  • Which three sources can stream input to an Azure Stream Analytics job?
  • What does telemetry represent in the context of sensors?
  • What X.509 certificate setting corresponds to the device CA Certificate in an IoT Edge Gateway configuration?
  • What ID is identical for all devices connected to one IoT Central app?
  • Are multiple rule conditions logically AND-ed together?
  • Why is it necessary to update firmware regularly in IoT devices?
  • How can you create an IoT Central application?
  • What does "g-forces" refer to in the context of measuring vibration?
  • What are the most common IoT solutions used across industries?
  • What role does IoT Edge modules play in an IoT solution?
  • What are the main components of an Azure Function?
  • For managing the authenticity of data from different kinds of sensors, IoT Hub is suitable because it:
  • What type of IoT Hub features are Alerts considered to be?
  • How can you manage data export definitions using IoT Central?
  • Is it easier to update software packages individually on IoT devices?
  • What allows for improved data encapsulation in Azure Data Lake Gen 2?
  • Why is simulating data through an edge module considered cost-effective?
  • To send a command to a device such as requesting it to reboot, you must:
  • What is the key advantage of using protocol translation with an IoT Edge device?
  • What does the acronym C2D in IoT metrics refer to?
  • Which IoT Central REST API operation is used to manage data export definitions?
  • Which of the following is true about the availability of sample queries in Azure IoT Hub logs?
  • In IoT Hub metrics, what defines an action group?
  • In terms of Azure IoT Hub, what do alerts trigger?
  • What are the four entries available for the IoT Hub Monitoring menu?
  • Why would you consider using IoT Edge for near real-time response to local events?
  • Which of the following correctly describes device twins in Azure IoT?
  • What is the primary function of an IoT Edge Gateway?
  • What is a benefit of using bindings in Azure Functions?
  • Which method can provide a list of devices associated with a template in IoT Central?
  • What is a "Direct Method" in IoT?
  • What does an API token in IoT Central determine?
  • What is the primary purpose of telemetry in IoT devices?
  • What does DPS stand for in the context of Azure IoT?
  • What is the purpose of the Automatic Device Management feature in Azure IoT Hub?
  • What is primarily used for device authentication in test environments?
  • What type of device template is used to create custom capabilities in Azure IoT Central?
  • When should IoT Edge be utilized?
  • What must be configured on a downstream device to facilitate communication with IoT Hub via an IoT Edge Gateway?
  • Which method is recommended for simulating the working of an edge device?
  • How do Azure Functions for IoT allow for the rapid deployment of IoT solutions?
  • What does the IoT Edge hub primarily facilitate?
  • What feature does a device template include in relation to device credentials?
  • What is the Azure IoT Hub feature used for implementing an over-the-air firmware update campaign?
  • What is commonly true of over-the-air IoT firmware updates?
  • What are the two primary parts that make up an Azure Function?
  • What is a recommended approach for simulating various machines in a production environment?
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