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Question 1:
A company has an on-premises Microsoft SQL Server 2014 environment. The company has a main office in Seattle, and remote offices in Amsterdam and Tokyo. You plan to deploy a Microsoft Azure SQL Database instance to support a new
application. You expect to have 100 users from each office.
In the past, users at remote sites reported issues when they used applications hosted at the Seattle office.
You need to optimize performance for users running reports while minimizing costs.
What should you do?
A. Implement an elastic pool.
B. Implement a standard database with readable secondaries in Asia and Europe, and then migrate the application.
C. Implement replication from an on-premises SQL Server database to the Azure SQL Database instance.
D. Deploy a database from the Premium service tier.
Correct Answer: B
References:https://docs.microsoft.com/en-us/azure/sql-database/sql-database-georeplication-transact-sql#add-secondary-database
Question 2:
You develop a Microsoft SQL Server 2014 database that contains a heap named OrdersHistorical.
You write the following Transact-SQL query:
INSERT INTO OrdersHistorical
SELECT * FROM CompletedOrders
You need to optimize transaction logging and locking for the statement.
Which table hint should you use?
A. HOLDLOCK
B. ROWLOCK
C. XLOCK
D. UPDLOCK
E. TABLOCK
Correct Answer: E
When importing data into a heap by using the INSERT INTO SELECT FROM statement, you can enable optimized logging and locking for the statement by specifying the TABLOCK hint for the target table. References:https://docs.microsoft.com/en-us/sql/t-sql/queries/hints-transact-sql-table
Question 3:
You administer a Microsoft SQL Server 2014 database that contains a table named AccountTransaction.
You discover that query performance on the table is poor due to fragmentation on the IDX_AccountTransaction_AccountCode non-clustered index. You need to defragment the index. You also need to ensure that user queries are able to use
the index during the defragmenting process.
Which Transact-SQL batch should you use?
A. ALTER INDEX IDX_AccountTransaction_AccountCode ONAccountTransaction.AccountCode REORGANIZE
B. ALTER INDEX ALL ON AccountTransaction REBUILD
C. ALTER INDEX IDX_AccountTransaction_AccountCode ONAccountTransaction.AccountCode REBUILD
D. CREATE INDEX IDXAccountTransactionAccountCode ONAccountTransaction.AccountCode WITH DROP EXISTING
Correct Answer: A
Reorganize: This option is more lightweight compared to rebuild. It runs through the leaf level of the index, and as it goes it fixes physical ordering of pages and also compacts pages to apply any previously set fillfactor settings. This operation
is always online, and if you cancel it then it\’s able to just stop where it is (it doesn\’t have a giant operation to rollback).
References: https://www.brentozar.com/archive/2013/09/index-maintenance-sql-server- rebuild-reorganize/
Question 4:
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 sections, you will NOT be able to return to it. As a result, these questions will not appear in the review screen.
You are migrating an on-premises Microsoft SQL Server instance to SQL Server on a Microsoft Azure virtual machine. The instance has 30 databased that consume a total of 2 TB of disk space.
The instance sustains more than 30,000 transactions per second.
You need to provision storage for the virtual machine. The storage must be able to support the same load as the on-premises deployment.
Solution: You create 30 storage accounts that each has one container. You create a VHD in each container. Does this meet the goal?
A. Yes
B. No
Correct Answer: A
Each Storage Account handles up to 20.000 IOPS, and 500TB of data.
References: https://www.tech-coffee.net/understand-microsoft-azure-storage-for-virtual- machines/
Question 5:
You plan to create an AlwaysOn availability group that will have two replicas in Microsoft Azure and two on premises replicas.
You need to configure the network to support the availability group listener.
Which cmdlet should you run first?
A. New-AzureRmAvailabilitySet
B. New-AzureRmLoadBalancer
C. New-AzureRmSqlDatabaseSecondary
D. New-AzureRmSqlElasticPool
E. New-AzureRmVM
F. New-AzureRmSqlServer
G. New-AzureRmSqlDatabaseCopy
H. New-AzureRmSqlServerCommunicationLink
Correct Answer: B
An availability group listener is a virtual network name that clients connect to for database access. On Azure virtual machines, a load balancer holds the IP address for the listener. The load balancer routes traffic to the instance of SQL Server that is listening on the probe port. Usually, an availability group uses an internal load balancer.
References: https://docs.microsoft.com/en-us/azure/virtual-machines/windows/sql/virtual- machines-windowsportal-sql-ps-alwayson-int-listener
Latest 70-765 Dumps70-765 VCE Dumps70-765 Exam Questions
Question 6:
You use a Microsoft SQL Server 2014 database that contains two tables named SalesOrderHeader and SalesOrderDetail. The indexes on the tables are as shown in the exhibit. (Click the Exhibit button.)
You write the following Transact-SQL query:
You discover that the performance of the query is slow. Analysis of the query plan shows table scans where the estimated rows do not match the actual rows for SalesOrderHeader by using an unexpected index on SalesOrderDetail.
You need to improve the performance of the query.
What should you do?
A. Use a FORCESCAN hint in the query.
B. Add a clustered index on SalesOrderId in SalesOrderHeader.
C. Use a FORCESEEK hint in the query.
D. Update statistics on SalesOrderId on both tables.
Correct Answer: D
New statistics would be useful.
The UPDATE STATISTICS command updates query optimization statistics on a table or indexed view. By default, the query optimizer already updates statistics as necessary to improve the query plan; in some cases you can improve query
performance by using UPDATE STATISTICS or the stored procedure sp_updatestats to update statistics more frequently than the default updates.
References: http://msdn.microsoft.com/en-us/library/ms187348.aspx
Question 7:
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 sections, you will NOT be able to return to it. As a result, these questions will not appear in the review screen.
You have Microsoft SQL Server on a Microsoft Azure virtual machine that has a database named DB1.
You discover that DB1 experiences WRITE_LOG waits that are longer than 50 ms.
You need to reduce the WRITE_LOG wait time.
Solution: Move the transaction logs to a faster disk.
Does this meet the goal?
A. Yes
B. No
Correct Answer: A
Explanation: Section: Deploy and migrate applications
In SQL Server, if we have a transactional based system and find a high WRITELOG wait type this is a performance bottleneck and can cause the transaction log file to grow rapidly and frequently.
It is being recommended to SQL server users that they must archive the log files on a separate disk for getting better performance.
References: https://atdhebuja.wordpress.com/2016/06/20/resolving-sql-server-transaction- log-waits/
Question 8:
You have a Microsoft Azure SQL database in the US West region.
You need to create a replica in the US East region.
Which cmdlet should you run first?
A. New-AzureRmAvailabilitySet
B. New-AzureRmLoadBalancer
C. New-AzureRmSqlDatabaseSecondary
D. New-AzureRmSqlElasticPool
E. New-AzureRmVM
F. New-AzureRmSqlServer
G. New-AzureRmSqlDatabaseCopy
H. New-AzureRmSqlServerCommunicationLink
Correct Answer: G
Explanation:
The New-AzureRmSqlDatabaseCopy command creates a copy of a SQL Database that uses the snapshot at the current time.
References: https://docs.microsoft.com/en-us/powershell/module/azurerm.sql/new- azurermsqldatabasecopy?view=azurermps-5.1.1
Question 9:
You need to optimize SRV1.
What configuration changes should you implement? To answer, select the appropriate option from each list in the answer area.
Hot Area:
Correct Answer:
From the scenario: SRV1 has 16 logical cores and hosts a SQL Server instance that supports a mission-critical application. The application hasapproximately 30,000 concurrent users and relies heavily on the use of temporary tables.
Box 1: Change the size of the tempdb log file.
The size and physical placement of the tempdb database can affect the performance of a system. For example, if the size that is defined for tempdb is too small, part of the systemprocessing load may be taken up with autogrowing tempdb to
the size required to support the workload every time you restart the instance of SQL Server. You can avoid this overhead by increasing the sizes of the tempdb data and log file.
Box 2: Add additional tempdb files.
Create as many files as needed to maximize disk bandwidth. Using multiple files reduces tempdb storage contention and yields significantly better scalability. However, do not create too many files because this can reduce performance and
increase management overhead.
As a general guideline, create one data file for each CPU on the server (accounting for any affinity mask settings) and then adjust the number of files up or down as necessary.
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