You build an internal application that uses the Computer Vision API.
You need to ensure that only specific employees can access the application.
What should you include in the solution?

• A. a multiservice subscription key
• B. single-service subscription key
• C. service principals in Azure Active Directory (Azure AD)
• D. user principals in Azure Active Directory (Azure AD)

Your company plans to implement an Al solution that will analyse data from loT devices.
Data from the devices will be analysed in real time. The results of the analysis will be stored in a SQL database.
You need to recommend a data processing solution that uses the Transact-SQL language.
Which data processing solution should you recommend?

• A. SQL Server Integration Services (SSIS)
• B. Azure Event Hubs
• C. Azure Machine Learning
• D. Azure Stream Analytics

You are designing an AI solution that will provide feedback to teachers who train students over the Internet.
The students will be in classrooms located in remote areas. The solution will capture video and audio data of the students in the classrooms.
You need to recommend Azure Cognitive Services for the AI solution to meet the following requirements:
Alert teachers if a student seems angry or distracted.
Identify each student in the classrooms for attendance purposes.
Allow the teachers to log the text of conversations between themselves and the students.
Which Cognitive Services should you recommend?

• A. Computer Vision, Speech to Text, and Text Analytics
• B. Computer Vision, Text Analytics, and Face API
• C. Text Analytics, QnA Maker, and Computer Vision
• D. Video Indexer, Speech to Text, and Face API
• E. Video Indexer, Face API, and Text Analytics

Your company recently deployed several hardware devices that contain sensors.
The sensors generate new data on an hourly basis. The data generated is stored on-premises and retained for several years.
During the past two months, the sensors generated 300 GB of data.
You plan to move the data to Azure and then perform advanced analytics on the data.
You need to recommend an Azure storage solution for the data.
Which storage solution should you recommend?

• A. Azure SQL Database
• B. Azure Blob storage
• C. Azure Cosmos DB
• D. Azure Queue storage

You deploy an application that performs sentiment analysis on the data stored in Azure Cosmos DB.
Recently, you loaded a large amount of data to the database. The data was for a customer named Contoso. Ltd.
You discover that queries for the Contoso data are slow to complete, and the queries slow the entire application.
You need to reduce the amount of time it takes for the queries to complete. The solution must minimize costs.
What is the best way to achieve the goal? More than one answer choice may achieve the goal. Select the BEST answer.

• A. Change the requests units.
• B. Migrate the data to the Cosmos DB database.
• C. Change the transaction isolation level.
• D. Change the partitioning strategy.