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AZ-220 Prüfungsfragen, AZ-220 Fragen und Antworten, Microsoft Azure IoT Developer
Die Prüfungsunterlagen zur Microsoft AZ-220 Zertifizierungsprüfung werden nach dem Lehrkompendium und den echten Prüfungen bearbeitet. Wir aktualisieren auch ständig unsere Schulungsunterlagen, so dass Sie in erster Zeit die neuesten und besten Informationen bekommen. Wenn Sie unsere Schulungsunterlagen zur Microsoft AZ-220 Zertifizierungsprüfung kaufen, können Sie einen einjährigen kostenlosen Update-Service bekommen. Sie können jederzeit Abonnmentszeit verlängern, so dass Sie mehr Zeit haben, sich auf die Microsoft AZ-220 Prüfung vorzubereiten.
Die Microsoft AZ-220-Prüfung eine wichtige Zertifizierung für Personen, die sich auf die IoT-Entwicklung mit Microsoft Azure spezialisieren möchten. Die Prüfung umfasst wichtige Themen und Technologien, die für den Aufbau und die Bereitstellung von IoT-Lösungen unerlässlich sind, einschließlich IoT Hub, IoT Edge und Azure Stream Analytics. Durch das Bestehen der Prüfung und den Erwerb der Zertifizierung können Einzelpersonen ihre Expertise präsentieren und Anerkennung von Arbeitgebern und Kollegen in der Branche erhalten.
Microsoft Azure IoT Developer AZ-220 Prüfungsfragen mit Lösungen (Q34-Q39):
34. Frage
You have an Azure IoT Edge module named SampleModule that runs on a device named Device1.
You make changes to the code of SampleModule by using Microsoft Visual Studio Code.
You need to push the code to the container registry and then deploy the module to Device1.
Which two actions should you perform from Visual Studio Code? Each correct answer presents part of the solution.
NOTE: Each correct selection is worth one point.
- A. Build and push the SampleModule code to the registry.
- B. Generate a shared access signature (SAS) token for Device 1.
- C. Build an loT Edge solution.
- D. Create a deployment for a single device.
- E. Upload to Azure Storage.
Antwort: C,D
Begründung:
Explanation
D: Once you create IoT Edge modules with your business logic, you want to deploy them to your devices to operate at the edge.
B: Configure a deployment manifest. A deployment manifest is a JSON document that describes which modules to deploy, how data flows between the modules, and desired properties of the module twins.
You deploy modules to your device by applying the deployment manifest that you configured with the module information.
* In the Visual Studio Code explorer view, expand the Azure IoT Hub section, and then expand the Devices node.
* To confirm that the device you've chosen is an IoT Edge device, select it to expand the list of modules and verify the presence of $edgeHub and $edgeAgent. Every IoT Edge device includes these two modules.
* Select Create Deployment for Single Device.
* Navigate to the deployment manifest JSON file that you want to use, and click Select Edge Deployment Manifest.
Reference:
https://docs.microsoft.com/en-us/azure/iot-edge/how-to-deploy-modules-vscode
35. Frage
You need to configure a digital twin to accept device telemetry data from the loT hub Which four actions should you perform m sequence? To answer, move the appropriate actions from the list of actions to the answer area and arrange them in the correct order.
Antwort:
Begründung:
Explanation
36. Frage
You need to configure Stream Analytics to meet the POV requirements.
What are two ways to achieve the goal? Each Answer presents a complete solution.
NOTE: Each correct selection is worth one point.
- A. Create a Stream Analytics module, and then deploy the module to all IoT Edge devices in the fleet.
- B. From IoT Hub, create a custom event hub endpoint, and then configure the endpoint as an input to Stream Analytics.
- C. Route telemetry to an Azure Blob storage custom endpoint, and then configure the Blob storage as a reference input for Stream Analytics.
- D. Create an input in Stream Analytics that uses the built-in events endpoint of IoT Hub as the source.
Antwort: B,D
Begründung:
Explanation
37. Frage
You have an Azure subscription that contains an Azure IoT hub and two IoT devices named Device1 and Device2.
You plan to deploy an Azure IoT Edge gateway device named Gateway1.
You need to ensure that all device-to-cloud messages and twin change notifications from Device1 and Device2 to the IoT hub are routed by using Gateway1.
What tasks should you perform to configure the devices? To answer, select the appropriate options in the answer area.
NOTE: Each correct selection is worth one point.
Antwort:
Begründung:
Explanation
Graphical user interface, text, application, email Description automatically generated
Box 1: Device1 and Device2
Connection strings for downstream devices need the following components:
* The gateway device that the device connects through. Provide the hostname value from the IoT Edge gateway device's config file: GatewayHostName={gateway hostname} Box 2: Gateway1 To deploy the IoT Edge hub module and configure it with routes to handle incoming messages from downstream devices, follow these steps:
* In the Azure portal, navigate to your IoT hub.
* Go to IoT Edge and select your IoT Edge device that you want to use as a gateway.
* Select Set Modules.
* On the Modules page, you can add any modules you want to deploy to the gateway device.
* Select Next: Routes.
* On the Routes page, make sure that there is a route to handle messages coming from downstream devices. For example:A route that sends all messages, whether from a module or from a downstream device, to IoT Hub:
Name: allMessagesToHub Value: FROM /messages/* INTO $upstream
Box 3: FROM /messages/* INTO $upstream
Reference:
https://docs.microsoft.com/en-us/azure/iot-edge/how-to-authenticate-downstream-device
38. Frage
How should you complete the GROUP BY clause to meet the Streaming Analytics requirements?
- A. GROUP BY SessionWindow(Second, 30, 60)
- B. GROUP BY SlidingWindow(Second, 30)
- C. GROUP BY TumblingWindow(Second, 30)
- D. GROUP BY HoppingWindow(Second, 60, 30)
Antwort: C
Begründung:
Explanation
Scenario: You plan to use a 30-second period to calculate the average temperature reading of the sensors.
Tumbling window functions are used to segment a data stream into distinct time segments and perform a function against them, such as the example below. The key differentiators of a Tumbling window are that they repeat, do not overlap, and an event cannot belong to more than one tumbling window.
InAnswers:
A: Hopping window functions hop forward in time by a fixed period. It may be easy to think of them as Tumbling windows that can overlap, so events can belong to more than one Hopping window result set.
Reference:
https://docs.microsoft.com/en-us/azure/stream-analytics/stream-analytics-window-functions
Topic 2, ADatum
Case Study
This is a case study. Case studies are not timed separately. You can use as much exam time as you would like to complete each case. However, there may be additional case studies and sections on this exam. You must manage your time to ensure that you are able to complete all questions included on this exam in the time provided.
To answer the questions included in a case study, you will need to reference information that is provided in the case study. Case studies might contain exhibits and other resources that provide more information about the scenario that is described in the case study. Each question is independent of the other question on this case study.
At the end of this case study, a review screen will appear. This screen allows you to review your answers and to make changes before you move to the next sections of the exam. After you begin a new section, you cannot return to this section.
To start the case study
To display the first question on this case study, click the button. Use the buttons in the left pane to explore the content of the case study before you answer the questions. Clicking these buttons displays information such as business requirements, existing environment, and problem statements. If the case study has an All Information tab, note that the information displayed is identical to the information displayed on the subsequent tabs. When you are ready to answer a question, click the button to return to the question.
Requirements. Planned Changes
ADatum is developing an Azure IoT solution to monitor environmental conditions. The IoT solution consists of hardware devices and cloud services. All the devices will communicate directly to Azure IoT Hub.
The hardware devices will be deployed to the branch offices and will collect data about various environmental conditions such as temperature, humidity, air quality, and noise level. The devices will be wired by using Power over Ethernet (PoE) connections.
ADatum is developing the solution in the following three phases: proof of value (POV), pilot, and production.
Requirements. POV Requirements
The POV phase will demonstrate that a technical solution is viable. During this phase, 100 devices will be deployed to the main office and Azure Stream Analytics will be connected to an IoT hub to generate real-time alerts. Stream Analytics will perform the following processing:
* Calculate the median rate of the telemetry across the entire devices that exceed the median rate by a factor of 4.
* Compare the current telemetry to the specified thresholds and issue alerts when telemetry values are out of range.
* Ensure that all message content during this phase is human readable to simplify debugging.
Requirements. Pilot Requirements
During the pilot phase, devices will be deployed to 10 offices. Each office will have up to 1,000 devices.
During this phase, you will add Azure Time Series Insights in parallel to Stream Analytics to support real-time graphs and queries in a dashboard web app.
The pilot deployment must minimize operating costs.
Requirements. Production Requirements
The production phase will include all the offices.
The production deployment will have one IoT hub in each Azure region. Devices must connect to the IoT hub in their region.
The production phase must meet the following requirements:
* Ensure that the IoT solution can support performance and scale targets.
* Ensure that the IoT solution support up to 1,000 devices per office.
* Minimize operating costs of the IoT solution.
Requirements. Technical Requirements
Datum identifies the following requirements for the planned IoT solution:
* The solution must generate real-time alerts when a fire condition is detected in an office. All the devices in that office must trigger an audible alarm siren within 10 seconds of the alert.
* A dashboard UI must display alerts and the system status in real time and must allow device operators to make adjustments to the system.
* Each device will send hourly updates to IoT Hub. Condition alerts will be sent immediately.
* Multiple types of devices will collect telemetry that has different schemas.
* IoT Hub must perform message routing based on the message body.
* Direct methods must be used for cloud-to-device communication.
* Reports must be provided monthly, quarterly, and annually.
* Stored data queries must be as efficient as possible.
* The device message size will be under 4 KB.
* Development effort must be minimized.
Requirements. Throttle and Quotas
The relevant throttles and quotas for various IoT Hub tiers are shown in the following table.
Requirements. IoT Hub Routing
You plan to implement IoT Hub routing during the POV phase as shown in the following exhibit.
39. Frage
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