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| Section | Objectives |
|---|---|
| Topic 1: Plan and implement a high availability and disaster recovery environment | - Backup and restore
|
| Topic 2: Perform automation | - Automate database tasks
|
| Topic 3: Implement a secure environment | - Manage database authentication and authorization
|
| Topic 4: Monitor and optimize operational resources | - Optimize resources
|
| Topic 5: Plan and implement data platform resources | - Plan and configure security for the data platform
|
| Topic 6: Optimize query performance | - Analyze query performance
|
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NEW QUESTION # 152
You plan to develop a dataset named Purchases by using Azure Databricks. Purchases will contain the following columns:
* ProductID
* ItemPrice
* LineTotal
* Quantity
* StoreID
* Minute
* Month
* Hour
* Year
* Day
You need to store the data to support hourly incremental load pipelines that will vary for each StoreID. The solution must minimize storage costs.
How should you complete the code? To answer, select the appropriate options in the answer area.
NOTE: Each correct selection is worth one point.
Answer:
Explanation:
Explanation:
Graphical user interface, text, application Description automatically generated
Box 1: .partitionBy
Example:
df.write.partitionBy("y","m","d")
mode(SaveMode.Append)
parquet("/data/hive/warehouse/db_name.db/" + tableName)
Box 2: ("Year","Month","Day","Hour","StoreID")
Box 3: .parquet("/Purchases")
Reference:
https://intellipaat.com/community/11744/how-to-partition-and-write-dataframe-in-spark-without-deleting-partitio
NEW QUESTION # 153
SIMULATION
You need to configure db1 to pause automatically after one hour of inactivity.
To complete this task, sign in to the virtual machine. You may need to use SQL Server Management Studio and the Azure portal.
Answer:
Explanation:
Azure SQL elastic pool pausing feature
Aan elastic pool vCore provisioned server can be paused. You can do this by changing the compute tier of the elastic pool to Serverless. In the serverless compute tier, the database is automatically paused when it is inactive for a period of time that you specify. The database is automatically resumed when the next login or other activity occurs.
Part 1: Change to the serverless compute tier
To change the compute tier of an elastic pool, you can follow these steps:
Step 1: Go to the Azure portal and sign in to your account.
Step 2: Select the Azure SQL resource that contains the elastic pool.
Step 3: In the left navigation menu, select Elastic Pools.
Step 4: Select the elastic pool that you want to change the compute tier for.
Step 5: In the Settings section, select Compute Tier.
Step 6: Select Serverless.
Step 7: Click Save.
Part 2: Configure the Auto-pause setting.
Step 1: Select db1.
Once you have changed the compute tier to serverless, the database will be paused after the idle time that you specified. You can view the idle time in the Auto-pause delay setting.
Step 2: Open database settings.
Step 3: Change the Auto-pause delay setting to 1 hour.
Reference:
https://learn.microsoft.com/en-us/azure/azure-sql/database/serverless-tier-overview
https://learn.microsoft.com/en-us/azure/azure-sql/database/single-database-create-quickstart
NEW QUESTION # 154
You have an Azure subscription that contains a resource group named RG1. RG1 contains an Azure SQL Server named Server1 in the West US Azure region.
You need to ensure that any Azure services deployed to RG1 can access Server1.
How should you complete the Azure Command-Line Interface < CU) command? To answer, select the appropriate options in the answer area.
NOTE: Each correct selection is worth one point.
Answer:
Explanation:
Explanation:
Basic Concept: This question tests plan and configure a high availability and disaster recovery (ha/dr) environment in the DP-300 exam context. The correct choice is determined by the exact service boundary and operational requirement stated in the scenario.
Why the selected answer is Correct: The selected values fit this scenario because they apply the required Azure SQL configuration at the correct scope and sequence: You need to ensure that any Azure services deployed to RG1 can access Server1.
Why the alternate choices are Wrong: The alternate selections apply to different administrative stages or different scopes. In a hotspot or drag-drop task, order and scope are part of the answer, so a technically valid Azure feature can still be wrong if it is placed in the wrong step.
NEW QUESTION # 155
You configure a long-term retention policy for an Azure SQL database as shown in the exhibit. (Click the Exhibit tab.)
The first weekly backup occurred on January 4, 2020. The dates for the first 10 weekly backups are:
January 4, 2020
January 11, 2020
January 18, 2020
January 25, 2020
February 1, 2020
February 8, 2020
February 15, 2020
February 22, 2020
February 29, 2020
March 7, 2020
Use the drop-down menus to select the answer choice that completes each statement based on the information presented in the graphic.
NOTE: Each correct selection is worth one point.
Answer:
Explanation:
NEW QUESTION # 156
Hotspot Question
You have an Azure subscription that is linked to a hybrid Azure Active Directory (Azure AD) tenant. The subscription contains an Azure Synapse Analytics SQL pool named Pool1.
You need to recommend an authentication solution for Pool1. The solution must support multi- factor authentication (MFA) and database-level authentication.
Which authentication solution or solutions should you include in the recommendation? To answer, select the appropriate options in the answer area.
NOTE: Each correct selection is worth one point.
Answer:
Explanation:
Explanation:
Box 1: Azure AD authentication
Azure Active Directory authentication supports Multi-Factor authentication through Active Directory Universal Authentication.
Box 2: Contained database users
Azure Active Directory Uses contained database users to authenticate identities at the database level.
Incorrect:
SQL authentication: To connect to dedicated SQL pool (formerly SQL DW), you must provide the following information:
- Fully qualified servername
- Specify SQL authentication
- Username
- Password
- Default database (optional)
Reference:
https://docs.microsoft.com/en-us/azure/synapse-analytics/sql-data-warehouse/sql-data-warehouse-authentication
NEW QUESTION # 157
......
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