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NEW QUESTION 45
DRAG DROP
You need to implement statistics maintenance for SalesSQLDb1. The solution must meet the technical requirements.
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:
Answer:
Explanation:
Section: [none]
Explanation:
Automating Azure SQL DB index and statistics maintenance using Azure Automation:
1. Create Azure automation account (Step 1)
2. Import SQLServer module (Step 2)
3. Add Credentials to access SQL DB
This will use secure way to hold login name and password that will be used to access Azure SQL DB
4. Add a runbook to run the maintenance (Step 3)
Steps:
1. Click on "runbooks" at the left panel and then click "add a runbook"
2. Choose "create a new runbook" and then give it a name and choose "Powershell" as the type of the runbook and then click on "create"
5. Schedule task (Step 4)
Steps:
1. Click on Schedules
2. Click on "Add a schedule" and follow the instructions to choose existing schedule or create a new schedule.
Reference:
https://techcommunity.microsoft.com/t5/azure-database-support-blog/automating-azure-sql-db-index-and- statistics-maintenance-using/ba-p/368974 Question Set 2
NEW QUESTION 46
You have an Azure SQL Database server named sqlsrv1 that hosts 10 Azure SQL databases.
The databases perform slower than expected.
You need to identify whether the performance issue relates to the use of tempdb by Azure SQL databases on
sqlsrv1.
What should you do?
- A. Review information provided by SQL Server Profiler-based traces
- B. Run Query Store-based queries
- C. Review information provided by Query Performance Insight
- D. Run dynamic management view-based queries
Answer: D
Explanation:
Section: [none]
Explanation:
The diagnostics log outputs tempDB contention details. You can use the information as the starting point for
troubleshooting.
You can use the Intelligent Insights performance diagnostics log of Azure SQL Database to troubleshoot
performance issues.
Reference:
https://docs.microsoft.com/en-us/azure/azure-sql/database/intelligent-insights-troubleshoot-
performance#tempdb-contention
https://docs.microsoft.com/en-us/azure/azure-sql/database/intelligent-insights-use-diagnostics-log
NEW QUESTION 47
You have an Azure subscription that contains an Azure SQL database.
The database fails to respond to queries in a timely manner.
You need to identify whether the issue relates to resource_semaphore waits.
How should you complete the Transact-SQL query? To answer, select the appropriate options in the answer area.
NOTE: Each correct selection is worth one point.
Answer:
Explanation:
Reference:
https://docs.microsoft.com/en-us/azure/azure-sql/database/monitoring-with-dmvs
NEW QUESTION 48
You have an Azure virtual machine named VM1 on a virtual network named VNet1. Outbound traffic from VM1 to the internet is blocked.
You have an Azure SQL database named SqlDb1 on a logical server named SqlSrv1.
You need to implement connectivity between VM1 and SqlDb1 to meet the following requirements:
Ensure that all traffic to the public endpoint of SqlSrv1 is blocked.
Minimize the possibility of VM1 exfiltrating data stored in SqlDb1.
D18912E1457D5D1DDCBD40AB3BF70D5D
What should you create on VNet1?
- A. an ExpressRoute gateway
- B. a service endpoint
- C. a private link
- D. a VPN gateway
Answer: C
Explanation:
Azure Private Link enables you to access Azure PaaS Services (for example, Azure Storage and SQL Database) and Azure hosted customer-owned/partner services over a private endpoint in your virtual network.
Traffic between your virtual network and the service travels the Microsoft backbone network. Exposing your service to the public internet is no longer necessary.
Reference:
https://docs.microsoft.com/en-us/azure/private-link/private-link-overview
NEW QUESTION 49
You need to identify the cause of the performance issues on SalesSQLDb1.
Which two dynamic management views should you use? Each correct answer presents part of the solution.
NOTE: Each correct selection is worth one point.
- A. sys.dm_exec_compute_node_errors
- B. sys.dm_tran_locks
- C. sys.dm_pdw_nodes_tran_locks
- D. sys.dm_exec_requests
- E. sys.dm_pdw_nodes_os_wait_stats
- F. sys.dm_cdc_errors
Answer: C,E
Explanation:
SalesSQLDb1 experiences performance issues that are likely due to out-of-date statistics and frequent blocking queries.
A: Use sys.dm_pdw_nodes_tran_locks instead of sys.dm_tran_locks from Azure Synapse Analytics (SQL Data Warehouse) or Parallel Data Warehouse.
E: Example:
The following query will show blocking information.
SELECT
t1.resource_type,
t1.resource_database_id,
t1.resource_associated_entity_id,
t1.request_mode,
t1.request_session_id,
t2.blocking_session_id
FROM sys.dm_tran_locks as t1
INNER JOIN sys.dm_os_waiting_tasks as t2
ON t1.lock_owner_address = t2.resource_address;
Note: Depending on the system you're working with you can access these wait statistics from one of three locations:
sys.dm_os_wait_stats: for SQL Server
sys.dm_db_wait_stats: for Azure SQL Database
sys.dm_pdw_nodes_os_wait_stats: for Azure SQL Data Warehouse
Incorrect Answers:
F: sys.dm_tran_locks returns information about currently active lock manager resources in SQL Server 2019 (15.x). Each row represents a currently active request to the lock manager for a lock that has been granted or is waiting to be granted.
Instead use sys.dm_pdw_nodes_tran_locks.
Reference:
https://docs.microsoft.com/en-us/sql/relational-databases/system-dynamic-management-views/sys-dm-tran- locks-transact-sql Optimize Query Performance Question Set 2
NEW QUESTION 50
......
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