You use Azure Data Lake Storage Gen2 to store data that data scientists and data engineers will query by using Azure Databricks interactive notebooks. The folders in Data Lake Storage will be secured, and users will have access only to the folders that relate to the projects on which they work.
You need to recommend which authentication methods to use for Databricks and Data Lake Storage to provide the users with the appropriate access. The solution must minimize administrative effort and development effort Which authentication method should you recommend for each Azure service? To answer, select the appropriate options in the answer area NOTE: Each correct selection is worth one point.

Correct Answer:

Explanation:
Databricks: Personal access tokens
To authenticate and access Databricks REST APIs, you use personal access tokens. Tokens are similar to passwords; you should treat them with care. Tokens expire and can be revoked.
Data Lake Storage: Azure Active Directory
Azure Data Lake Storage Gen1 uses Azure Active Directory for authentication.
References:
https://docs.azuredatabricks.net/dev-tools/api/latest/authentication.html
https://docs.microsoft.com/en-us/azure/data-lake-store/data-lakes-store-authentication-using-azure-active-directory

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You are planning the deployment of two separate Azure Cosmos DB databases named db1 and db2.
You need to recommend a deployment strategy that meets the following requirements:
* Costs for both databases must be minimized.
* Db1 must meet an SLA of 99.99% for both reads and writes.
* Db2 must meet an SLA of 99.99% for writes and 99.999% for reads.
Which deployment strategy should you recommend for each database? To answer, select the appropriate options in the answer area.
NOTE: Each correct selection is worth one point.

Correct Answer:

Db1: A single read/write region
Db2: A single write region and multi read regions

References:
https://docs.microsoft.com/en-us/azure/cosmos-db/high-availability

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You are designing an app that will provide a data cleaning and supplementing service for customers. The app will use Azure Data Factory to run a daily process to read and write data from Azure Storage blob containers.
You need to recommend an access mechanism for the customers to grant the app access to their data. The solution must meet the following requirements:
* Provide access for a period of three months.
* Restrict the app's access to specific containers.
* Minimize administrative effort.
* Minimize changes to the existing access controls of the customer's Azure Storage accounts.
What should you recommend?

• A.a shared key
• B.anonymous public read access
• C.a managed identity
• D.a shared access signature (SAS)

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You need to optimize storage for CONT_SQL3.
What should you recommend?

• A.AlwaysOn
• B.Transactional processing
• C.General
• D.Data warehousing

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You need to recommend a solution for storing the image tagging data.
What should you recommend?

• A.Azure File Storage
• B.Azure Cosmos DB
• C.Azure Blob Storage
• D.Azure SQL Database
• E.Azure Synapse Analytics

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