Microsoft Microsoft Certifications DP-300 Questions & Answers

• Question 291:

  DRAG DROP

  You are building an Azure virtual machine.

  You allocate two 1-TiB, P30 premium storage disks to the virtual machine. Each disk provides 5,000 IOPS.

  You plan to migrate an on-premises instance of Microsoft SQL Server to the virtual machine. The instance has a database that contains a 1.2-TiB data file. The database requires 10,000 IOPS.

  You need to configure storage for the virtual machine to support the database.

  Which three objects should you create in sequence? To answer, move the appropriate objects from the list of objects to the answer area and arrange them in the correct order.

  Select and Place:

  

  Correct Answer:

  

  Follow these same steps to create striped virtual disk:

  1.

  Create Log Storage Pool.

  2.

  Create Virtual Disk

  3.

  Create Volume Box 1: a storage pool Box 2: a virtual disk that uses stripe layout

  Disk Striping: Use multiple disks and stripe them together to get a combined higher IOPS and Throughput limit. The combined limit per VM should be higher than the combined limits of attached premium disks.

  Box 3: a volume

  Reference:

  https://hanu.com/hanu-how-to-striping-of-disks-for-azure-sql-server/

• Question 292:

  DRAG DROP

  You have an Azure SQL database that contains a table named Employees. Employees contains a column named Salary.

  You need to encrypt the Salary column. The solution must prevent database administrators from reading the data in the Salary column and must provide the most secure encryption.

  Which three actions should you perform in sequence? To answer, move the appropriate actions from the list of actions to the answer area and arrange them in the correct order.

  Select and Place:

  

  Correct Answer:

  

  Step 1: Create a column master key

  Create a column master key metadata entry before you create a column encryption key metadata entry in the database and before any column in the database can be encrypted using Always Encrypted.

  Step 2: Create a column encryption key.

  Step 3: Encrypt the Salary column by using the randomized encryption type.

  Randomized encryption uses a method that encrypts data in a less predictable manner. Randomized encryption is more secure, but prevents searching, grouping, indexing, and joining on encrypted columns.

  Note: A column encryption key metadata object contains one or two encrypted values of a column encryption key that is used to encrypt data in a column. Each value is encrypted using a column master key.

  Incorrect Answers:

  Deterministic encryption.

  Deterministic encryption always generates the same encrypted value for any given plain text value. Using deterministic encryption allows point lookups, equality joins, grouping and indexing on encrypted columns. However, it may also allow

  unauthorized users to guess information about encrypted values by examining patterns in the encrypted column, especially if there's a small set of possible encrypted values, such as True/False, or North/South/East/West region.

  Reference:

  https://docs.microsoft.com/en-us/sql/relational-databases/security/encryption/always-encrypted-database-engine

• Question 293:

  DRAG DROP

  You have a new Azure SQL database named DB1 on an Azure SQL server named AzSQL1.

  The only user who was created is the server administrator.

  You need to create a contained database user in DB1 who will use Azure Active Directory (Azure AD) for authentication.

  Which three actions should you perform in sequence? To answer, move the appropriate actions from the list of actions to the answer area and arrange them in the correct order.

  Select and Place:

  

  Correct Answer:

  

  Step 1: Set up the Active Directory Admin for AzSQL1.

  Step 2: Connect to DB1 by using the server administrator.

  Sign into your managed instance with an Azure AD login granted with the sysadmin role.

  Step 3: Create a user by using the FROM EXTERNAL PROVIDER clause.

  FROM EXTERNAL PROVIDER is available for creating server-level Azure AD logins in SQL Database managed instance. Azure AD logins allow database-level Azure AD principals to be mapped to server-level Azure AD logins. To create an

  Azure AD user from an Azure AD login use the following syntax:

  CREATE USER [AAD_principal] FROM LOGIN [Azure AD login]

  Reference:

  https://docs.microsoft.com/en-us/sql/t-sql/statements/create-user-transact-sql

• Question 294:

  DRAG DROP

  You have SQL Server 2019 on an Azure virtual machine that contains an SSISDB database.

  A recent failure causes the master database to be lost.

  You discover that all Microsoft SQL Server integration Services (SSIS) packages fail to run on the virtual machine.

  Which four actions should you perform in sequence to resolve the issue? To answer, move the appropriate actions from the list of actions to the answer area and arrange them in the correct.

  Select and Place:

  

  Correct Answer:

  

  Step 1: Attach the SSISDB database

  Step 2: Turn on the TRUSTWORTHY property and the CLR property

  If you are restoring the SSISDB database to an SQL Server instance where the SSISDB catalog was never created, enable common language runtime (clr)

  Step 3: Open the master key for the SSISDB database

  Restore the master key by this method if you have the original password that was used to create SSISDB.

  open master key decryption by password = 'LS1Setup!' --'Password used when creating SSISDB' Alter Master Key Add encryption by Service Master Key

  Step 4: Encrypt a copy of the mater key by using the service master key

  Reference: https://docs.microsoft.com/en-us/sql/integration-services/backup-restore-and-move-the-ssis-catalog

• Question 295:

  DRAG DROP

  You have a resource group named App1Dev that contains an Azure SQL Database server named DevServer1. DevServer1 contains an Azure SQL database named DB1. The schema and permissions for DB1 are saved in a Microsoft SQL

  Server Data Tools (SSDT) database project.

  You need to populate a new resource group named App1Test with the DB1 database and an Azure SQL Server named TestServer1. The resources in App1Test must have the same configurations as the resources in App1Dev.

  Which four actions should you perform in sequence? To answer, move the appropriate actions from the list of actions to the answer area and arrange them in the correct order.

  Select and Place:

  

  Correct Answer:

  

• Question 296:

  DRAG DROP

  You have an Azure SQL Database instance named DatabaseA on a server named Server1.

  You plan to add a new user named App1 to DatabaseA and grant App1 db_datacenter permissions. App1 will use SQL Server Authentication.

  You need to create App1. The solution must ensure that App1 can be given access to other databases by using the same credentials.

  Which three actions should you perform in sequence? To answer, move the appropriate actions from the list of actions to the answer area and arrange them in the correct order.

  Select and Place:

  

  Correct Answer:

  

  Step 1: On the master database, run CREATE LOGIN [App1] WITH PASSWORD = 'p@aaW0rd!'

  Logins are server wide login and password pairs, where the login has the same password across all databases. Here is some sample Transact-SQL that creates a login:

  CREATE LOGIN readonlylogin WITH password='1231!#ASDF!a';

  You must be connected to the master database on SQL Azure with the administrative login (which you get from the SQL Azure portal) to execute the CREATE LOGIN command.

  Step 2: On DatabaseA, run CREATE USER [App1] FROM LOGIN [App1]

  Users are created per database and are associated with logins. You must be connected to the database in where you want to create the user. In most cases, this is not the master database. Here is some sample Transact-SQL that creates a

  user:

  CREATE USER readonlyuser FROM LOGIN readonlylogin;

  Step 3: On DatabaseA run ALTER ROLE db_datareader ADD Member [App1]

  Just creating the user does not give them permissions to the database. You have to grant them access. In the Transact-SQL example below the readonlyuser is given read only permissions to the database via the db_datareader role.

  EXEC sp_addrolemember 'db_datareader', 'readonlyuser';

  Reference:

  https://azure.microsoft.com/en-us/blog/adding-users-to-your-sql-azure-database/

• Question 297:

  DRAG DROP

  Your company analyzes images from security cameras and sends alerts to security teams that respond to unusual activity. The solution uses Azure Databricks.

  You need to send Apache Spark level events, Spark Structured Streaming metrics, and application metrics to Azure Monitor.

  Which three actions should you perform in sequence? To answer, move the appropriate actions from the list of actions in the answer area and arrange them in the correct order.

  Select and Place:

  

  Correct Answer:

  

  Send application metrics using Dropwizard.

  Spark uses a configurable metrics system based on the Dropwizard Metrics Library.

  To send application metrics from Azure Databricks application code to Azure Monitor, follow these steps:

  Step 1: Configure your Azure Databricks cluster to use the Databricksmonitoring library.

  Prerequisite: Configure your Azure Databricks cluster to use the monitoring library.

  Step 2: Build the spark-listeners-loganalytics-1.0-SNAPSHOT.jar JAR file

  Step 3: Create Dropwizard counters in your application code

  Create Dropwizard gauges or counters in your application code

• Question 298:

  DRAG DROP

  You plan to create a table in an Azure Synapse Analytics dedicated SQL pool.

  Data in the table will be retained for five years. Once a year, data that is older than five years will be deleted.

  You need to ensure that the data is distributed evenly across partitions. The solutions must minimize the amount of time required to delete old data.

  How should you complete the Transact-SQL statement? To answer, drag the appropriate values to the correct targets. Each value may be used once, more than once, or not at all.

  You may need to drag the split bar between panes or scroll to view content.

  NOTE: Each correct selection is worth one point.

  Select and Place:

  

  Correct Answer:

  

  Box 1: HASH

  Box 2: OrderDateKey

  In most cases, table partitions are created on a date column.

  A way to eliminate rollbacks is to use Metadata Only operations like partition switching for data management. For example, rather than execute a DELETE statement to delete all rows in a table where the order_date was in October of 2001,

  you could partition your data early. Then you can switch out the partition with data for an empty partition from another table.

  Reference:

  https://docs.microsoft.com/en-us/sql/t-sql/statements/create-table-azure-sql-data-warehouse

  https://docs.microsoft.com/en-us/azure/synapse-analytics/sql/best-practices-dedicated-sql-pool

• Question 299:

  DRAG DROP

  You are creating a managed data warehouse solution on Microsoft Azure.

  You must use PolyBase to retrieve data from Azure Blob storage that resides in parquet format and load the data into a large table called FactSalesOrderDetails.

  You need to configure Azure Synapse Analytics to receive the data.

  Which four actions should you perform in sequence? To answer, move the appropriate actions from the list of actions to the answer area and arrange them in the correct order.

  Select and Place:

  

  Correct Answer:

  

  To query the data in your Hadoop data source, you must define an external table to use in Transact-SQL queries. The following steps describe how to configure the external table. Step 1: Create a master key on database.

  1.

  Create a master key on the database. The master key is required to encrypt the credential secret.

  (Create a database scoped credential for Azure blob storage.)

  Step 2: Create an external data source for Azure Blob storage.

  2.

  Create an external data source with CREATE EXTERNAL DATA SOURCE..

  Step 3: Create an external file format to map the parquet files.

  3.

  Create an external file format with CREATE EXTERNAL FILE FORMAT.

  Step 4. Create an external table FactSalesOrderDetails

  4.

  Create an external table pointing to data stored in Azure storage with CREATE EXTERNAL TABLE.

  Reference: https://docs.microsoft.com/en-us/sql/relational-databases/polybase/polybase-configure-azure-blob-storage

• Question 300:

  DRAG DROP

  You have an Azure SQL managed instance named SQLMI1 that has Resource Governor enabled and is used by two apps named App1 and App2.

  You need to configure SQLMI1 to limit the CPU and memory resources that can be allocated to App1.

  Which four actions should you perform in sequence? To answer, move the appropriate actions from the list of actions to the answer area and arrange them in the correct order.

  Select and Place:

  

  Correct Answer:

  

  Reference: https://docs.microsoft.com/en-us/sql/relational-databases/resource-governor/resource-governor?view=sql-server-ver15

  https://docs.microsoft.com/en-us/sql/relational-databases/resource-governor/create-and-test-a-classifier-user-defined-function?view=sql-server-ver15