Microsoft Administering Relational Databases on Microsoft Azure - DP-300무료 덤프문제 풀어보기
Note: This question is part of a series of questions that present the same scenario. Each question in the series contains a unique solution that might meet the stated goals. Some question sets might have more than one correct solution, while others might not have a correct solution.
After you answer a question in this section, you will NOT be able to return to it. As a result, these questions will not appear in the review screen.
You have the on-premises networks shown in the following table.
You have an Azure subscription that contains an Azure SQL Database server named SQL1.
SQL1 contains two databases named DB1 and DB2.
You need to configure access to DB1 and DB2. The solution must meet the following requirements:
- Ensure that DB1 can be accessed only by users in Branch1.
- Ensure that DB2 can be accessed only by users in Branch2.
Solution: You connect to the master of SQL1 and run the following command.
EXECUTE sp_set_firewall_rule 'Allow db1 and db2 users', '131.107.11.0',
'131.107.11.255'
Does this meet the goal?
After you answer a question in this section, you will NOT be able to return to it. As a result, these questions will not appear in the review screen.
You have the on-premises networks shown in the following table.
You have an Azure subscription that contains an Azure SQL Database server named SQL1.
SQL1 contains two databases named DB1 and DB2.
You need to configure access to DB1 and DB2. The solution must meet the following requirements:
- Ensure that DB1 can be accessed only by users in Branch1.
- Ensure that DB2 can be accessed only by users in Branch2.
Solution: You connect to the master of SQL1 and run the following command.
EXECUTE sp_set_firewall_rule 'Allow db1 and db2 users', '131.107.11.0',
'131.107.11.255'
Does this meet the goal?
정답: B
설명: (Fast2test 회원만 볼 수 있음)
Your on-premises network contains a server that hosts a 60-TB database named DB1. The network has a 10-Mbps internet connection.
You need to migrate DB1 to Azure. The solution must minimize how long it takes to migrate the database.
What should you use?
You need to migrate DB1 to Azure. The solution must minimize how long it takes to migrate the database.
What should you use?
정답: B
Hotspot Question
You have two Azure SQL databases named SQLDB1 and SQLDB2 in the Hyperscale service tier. SQLDB1 was set to the Hyperscale service tier when the database was created. SQLDB2 was changed from the Business Critical service tier to the Hyperscale service tier during the last
14 days.
You need to change SQLDB1 and SQLDB2 to the Business Critical service tier. The solution must minimize the administrative effort.
What should you do first? To answer, select the appropriate options in the answer area.
NOTE: Each correct selection is worth one point.
You have two Azure SQL databases named SQLDB1 and SQLDB2 in the Hyperscale service tier. SQLDB1 was set to the Hyperscale service tier when the database was created. SQLDB2 was changed from the Business Critical service tier to the Hyperscale service tier during the last
14 days.
You need to change SQLDB1 and SQLDB2 to the Business Critical service tier. The solution must minimize the administrative effort.
What should you do first? To answer, select the appropriate options in the answer area.
NOTE: Each correct selection is worth one point.
정답:
Explanation:
Box 1: Export the data
For databases that don't qualify for reverse migration [See Limitations for reverse migration below], the only way to migrate from Hyperscale to a non-Hyperscale service tier is to export/import using a bacpac file or other data movement technologies (Bulk Copy, Azure Data Factory, Azure Databricks, SSIS, etc.) Box 2: Set the Service tier to General Purpose.
Reverse migrate a database from Hyperscale
You can migrate an existing Hyperscale database in Azure SQL Database to the General Purpose service tier using the Azure portal, the Azure CLI, PowerShell, or Transact-SQL.
Reverse migration to the General Purpose service tier allows customers who have recently converted an existing database in Azure SQL Database to Hyperscale to move back in an emergency, should Hyperscale not meet their needs. While reverse migration is initiated by a service tier change, it's essentially a size-of-data move between different architectures.
Reference:
https://learn.microsoft.com/en-us/azure/azure-sql/database/reverse-migrate-from-hyperscale
Case Study 5 - ADatum Corporation
Overview
ADatum Corporation is a financial services company that has a main office in New York City.
Existing Environment
Licensing Agreement
ADatum has a Microsoft Volume Licensing agreement that includes Software Assurance.
Network Infrastructure
ADatum has an on-premises datacenter and an Azure subscription named Sub1.
Sub1 contains a virtual network named Network1 in the East US Azure region.
The datacenter is connected to Network1 by using a Site-to-Site (S2S) VPN.
Identity Environment
The on-premises network contains an Active Directory Domain Services (AD DS) forest.
The forest contains a single domain named corp.adatum.com.
The corp.adatum.com domain syncs with a Microsoft Entra tenant named adatum.com.
Database Environment
The datacenter contains the servers shown in the following table.
DB1 and DB2 are used for transactional and analytical workloads by an application named App1.
App1 runs on Microsoft Entra hybrid joined servers that run Windows Server 2022. App1 uses Kerberos authentication.
DB3 stores compliance data used by two applications named App2 and App3.
DB3 performance is monitored by using Extended Events sessions, with the event_file target set to a file share on a local disk of SVR3.
Resource allocation for DB3 is managed by using Resource Governor.
Requirements
Planned Changes
ADatum plans to implement the following changes:
- Deploy an Azure SQL managed instance named Instance1 to Network1.
- Migrate DB1 and DB2 to Instance1.
- Migrate DB3 to Azure SQL Database.
- Following the migration of DB1 and DB2, hand over database development to remote developers who use Microsoft Entra joined Windows 11 devices.
- Following the migration of DB3, configure the database to be part of an auto-failover group.
Availability Requirements
ADatum identifies the following post-migration availability requirements:
- For DB1 and DB2, offload analytical workloads to a read-only database replica in the same Azure region.
- Ensure that if a regional disaster occurs, DB1 and DB2 can be recovered from backups.
- After the migration, App1 must maintain access to DB1 and DB2.
- For DB3, manage potential performance issues caused by resource demand changes by App2 and App3.
- Ensure that DB3 will still be accessible following a planned failover.
- Ensure that DB3 can be restored if the logical server is deleted.
- Minimize downtime during the migration of DB1 and DB2.
Security Requirements
ADatum identifies the following security requirements for after the migration:
- Ensure that only designated developers who use Microsoft Entra joined Windows 11 devices can access DB1 and DB2 remotely.
- Ensure that all changes to DB3, including ones within individual transactions, are audited and recorded.
Management Requirements
ADatum identifies the following post-migration management requirements:
- Continue using Extended Events to monitor DB3.
- In Azure SQL Database, automate the management of DB3 by using elastic jobs that have database-scoped credentials.
Business Requirements
ADatum identifies the following business requirements:
- Minimize costs whenever possible, without affecting other requirements.
- Minimize administrative effort.
You need to recommend a solution to meet the security requirements and the business requirements for DB3.
What should you recommend as the first step of the solution?
Overview
ADatum Corporation is a financial services company that has a main office in New York City.
Existing Environment
Licensing Agreement
ADatum has a Microsoft Volume Licensing agreement that includes Software Assurance.
Network Infrastructure
ADatum has an on-premises datacenter and an Azure subscription named Sub1.
Sub1 contains a virtual network named Network1 in the East US Azure region.
The datacenter is connected to Network1 by using a Site-to-Site (S2S) VPN.
Identity Environment
The on-premises network contains an Active Directory Domain Services (AD DS) forest.
The forest contains a single domain named corp.adatum.com.
The corp.adatum.com domain syncs with a Microsoft Entra tenant named adatum.com.
Database Environment
The datacenter contains the servers shown in the following table.
DB1 and DB2 are used for transactional and analytical workloads by an application named App1.
App1 runs on Microsoft Entra hybrid joined servers that run Windows Server 2022. App1 uses Kerberos authentication.
DB3 stores compliance data used by two applications named App2 and App3.
DB3 performance is monitored by using Extended Events sessions, with the event_file target set to a file share on a local disk of SVR3.
Resource allocation for DB3 is managed by using Resource Governor.
Requirements
Planned Changes
ADatum plans to implement the following changes:
- Deploy an Azure SQL managed instance named Instance1 to Network1.
- Migrate DB1 and DB2 to Instance1.
- Migrate DB3 to Azure SQL Database.
- Following the migration of DB1 and DB2, hand over database development to remote developers who use Microsoft Entra joined Windows 11 devices.
- Following the migration of DB3, configure the database to be part of an auto-failover group.
Availability Requirements
ADatum identifies the following post-migration availability requirements:
- For DB1 and DB2, offload analytical workloads to a read-only database replica in the same Azure region.
- Ensure that if a regional disaster occurs, DB1 and DB2 can be recovered from backups.
- After the migration, App1 must maintain access to DB1 and DB2.
- For DB3, manage potential performance issues caused by resource demand changes by App2 and App3.
- Ensure that DB3 will still be accessible following a planned failover.
- Ensure that DB3 can be restored if the logical server is deleted.
- Minimize downtime during the migration of DB1 and DB2.
Security Requirements
ADatum identifies the following security requirements for after the migration:
- Ensure that only designated developers who use Microsoft Entra joined Windows 11 devices can access DB1 and DB2 remotely.
- Ensure that all changes to DB3, including ones within individual transactions, are audited and recorded.
Management Requirements
ADatum identifies the following post-migration management requirements:
- Continue using Extended Events to monitor DB3.
- In Azure SQL Database, automate the management of DB3 by using elastic jobs that have database-scoped credentials.
Business Requirements
ADatum identifies the following business requirements:
- Minimize costs whenever possible, without affecting other requirements.
- Minimize administrative effort.
You need to recommend a solution to meet the security requirements and the business requirements for DB3.
What should you recommend as the first step of the solution?
정답: D
Your environment contains a Microsoft Azure virtual machine and an Azure SQL database. The virtual machine has Microsoft SQL Server installed and contains several applications.
You need to recommend a solution to migrate one of the applications to the Azure SQL database.
The solution must minimize downtime.
Which solution should you recommend?
You need to recommend a solution to migrate one of the applications to the Azure SQL database.
The solution must minimize downtime.
Which solution should you recommend?
정답: C
Hotspot Question
You have an Azure Synapse Analytics dedicated SQL pool named Pool1 and an Azure Data Lake Storage Gen2 account named Account1.
You plan to access the files in Account1 by using an external table.
You need to create a data source in Pool1 that you can reference when you create the external table.
How should you complete the Transact-SQL statement? To answer, select the appropriate options in the answer area.
NOTE: Each correct selection is worth one point.
You have an Azure Synapse Analytics dedicated SQL pool named Pool1 and an Azure Data Lake Storage Gen2 account named Account1.
You plan to access the files in Account1 by using an external table.
You need to create a data source in Pool1 that you can reference when you create the external table.
How should you complete the Transact-SQL statement? To answer, select the appropriate options in the answer area.
NOTE: Each correct selection is worth one point.
정답:
Explanation:
Box 1: dfs
For Azure Data Lake Store Gen 2 used the following syntax:
http[s] <storage_account>.dfs.core.windows.net/<container>/subfolders
Incorrect:
Not blob: blob is used for Azure Blob Storage. Syntax:
http[s] <storage_account>.blob.core.windows.net/<container>/subfolders
Box 2: TYPE = HADOOP
Syntax for CREATE EXTERNAL DATA SOURCE.
External data sources with TYPE=HADOOP are available only in dedicated SQL pools.
CREATE EXTERNAL DATA SOURCE <data_source_name>
WITH -
( LOCATION = '<prefix>://<path>'
[, CREDENTIAL = <database scoped credential> ]
, TYPE = HADOOP
)
[;]
Reference:
https://docs.microsoft.com/en-us/azure/synapse-analytics/sql/develop-tables-external-tables
Hotspot Question
You have an Azure SQL database named SQL1.
You need to monitor the resource usage of SQL1 by using a dynamic management view. The solution must return the average memory usage and the peak CPU usage.
How should you complete the query? To answer, select the appropriate options in the answer area.
NOTE: Each correct selection is worth one point.
You have an Azure SQL database named SQL1.
You need to monitor the resource usage of SQL1 by using a dynamic management view. The solution must return the average memory usage and the peak CPU usage.
How should you complete the query? To answer, select the appropriate options in the answer area.
NOTE: Each correct selection is worth one point.
정답:
Explanation:
Box 1: max_worker_percent
Maximum concurrent workers (requests) in percentage of the limit of the database's service tier.
Box 2: dm_db_resource_stats:
This dynamic management view (DMV) in Azure SQL Database provides real-time resource utilization data.
The query SELECT avg_memory_usage_percent FROM sys. is used in Azure SQL Database to retrieve the average memory usage percentage of a database. This information is provided by the sys.dm_db_resource_stats dynamic management view (DMV). The avg_memory_usage_percent column represents the average memory usage as a percentage of the maximum allowed memory for the database's service tier and performance level.
Reference:
https://learn.microsoft.com/en-us/sql/relational-databases/system-dynamic-management-views/sys-dm-db-resource-stats-azure-sql-database
Case Study 4 - A.Datum
Overview
ADatum Corporation is a retailer that sells products through two sales channels: retail stores and a website.
Existing Environment
ADatum has one database server that has Microsoft SQL Server 2016 installed. The server hosts three mission-critical databases named SALESDB, DOCDB, and REPORTINGDB.
SALESDB collects data from the stores and the website.
DOCDB stores documents that connect to the sales data in SALESDB. The documents are stored in two different JSON formats based on the sales channel.
REPORTINGDB stores reporting data and contains several columnstore indexes. A daily process creates reporting data in REPORTINGDB from the data in SALESDB. The process is implemented as a SQL Server Integration Services (SSIS) package that runs a stored procedure from SALESDB.
Requirements
Planned Changes
ADatum plans to move the current data infrastructure to Azure. The new infrastructure has the following requirements:
* Migrate SALESDB and REPORTINGDB to an Azure SQL database.
* Migrate DOCDB to Azure Cosmos DB.
* The sales data, including the documents in JSON format, must be gathered as it arrives and analyzed online by using Azure Stream Analytics. The analytics process will perform aggregations that must be done continuously, without gaps, and without overlapping.
* As they arrive, all the sales documents in JSON format must be transformed into one consistent format.
* Azure Data Factory will replace the SSIS process of copying the data from SALESDB to REPORTINGDB.
Technical Requirements
The new Azure data infrastructure must meet the following technical requirements:
* Data in SALESDB must encrypted by using Transparent Data Encryption (TDE). The encryption must use your own key.
* SALESDB must be restorable to any given minute within the past three weeks.
* Real-time processing must be monitored to ensure that workloads are sized properly based on actual usage patterns.
* Missing indexes must be created automatically for REPORTINGDB.
* Disk IO, CPU, and memory usage must be monitored for SALESDB.
Which counter should you monitor for real-time processing to meet the technical requirements?
Overview
ADatum Corporation is a retailer that sells products through two sales channels: retail stores and a website.
Existing Environment
ADatum has one database server that has Microsoft SQL Server 2016 installed. The server hosts three mission-critical databases named SALESDB, DOCDB, and REPORTINGDB.
SALESDB collects data from the stores and the website.
DOCDB stores documents that connect to the sales data in SALESDB. The documents are stored in two different JSON formats based on the sales channel.
REPORTINGDB stores reporting data and contains several columnstore indexes. A daily process creates reporting data in REPORTINGDB from the data in SALESDB. The process is implemented as a SQL Server Integration Services (SSIS) package that runs a stored procedure from SALESDB.
Requirements
Planned Changes
ADatum plans to move the current data infrastructure to Azure. The new infrastructure has the following requirements:
* Migrate SALESDB and REPORTINGDB to an Azure SQL database.
* Migrate DOCDB to Azure Cosmos DB.
* The sales data, including the documents in JSON format, must be gathered as it arrives and analyzed online by using Azure Stream Analytics. The analytics process will perform aggregations that must be done continuously, without gaps, and without overlapping.
* As they arrive, all the sales documents in JSON format must be transformed into one consistent format.
* Azure Data Factory will replace the SSIS process of copying the data from SALESDB to REPORTINGDB.
Technical Requirements
The new Azure data infrastructure must meet the following technical requirements:
* Data in SALESDB must encrypted by using Transparent Data Encryption (TDE). The encryption must use your own key.
* SALESDB must be restorable to any given minute within the past three weeks.
* Real-time processing must be monitored to ensure that workloads are sized properly based on actual usage patterns.
* Missing indexes must be created automatically for REPORTINGDB.
* Disk IO, CPU, and memory usage must be monitored for SALESDB.
Which counter should you monitor for real-time processing to meet the technical requirements?
정답: D
설명: (Fast2test 회원만 볼 수 있음)
Hotspot Question
You have an Azure Data Lake Storage Gen2 account named account1 that stores logs as shown in the following table.
You do not expect that the logs will be accessed during the retention periods.
You need to recommend a solution for account1 that meets the following requirements:
- Automatically deletes the logs at the end of each retention period
- Minimizes storage costs
What should you include in the recommendation? To answer, select the appropriate options in the answer area.
NOTE: Each correct selection is worth one point.
You have an Azure Data Lake Storage Gen2 account named account1 that stores logs as shown in the following table.
You do not expect that the logs will be accessed during the retention periods.
You need to recommend a solution for account1 that meets the following requirements:
- Automatically deletes the logs at the end of each retention period
- Minimizes storage costs
What should you include in the recommendation? To answer, select the appropriate options in the answer area.
NOTE: Each correct selection is worth one point.
정답:
Explanation:
Box 1: Store the infrastructure logs in the Cool access tier the application logs in the Archive access tier Hot - Optimized for storing data that is accessed frequently.
Cool - Optimized for storing data that is infrequently accessed and stored for at least 30 days.
Archive - Optimized for storing data that is rarely accessed and stored for at least 180 days with flexible latency requirements, on the order of hours.
Box 2: Azure Blob storage lifecycle management rules
Blob storage lifecycle management offers a rich, rule-based policy that you can use to transition your data to the best access tier and to expire data at the end of its lifecycle.
Reference:
https://docs.microsoft.com/en-us/azure/storage/blobs/storage-blob-storage-tiers