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Question 1:

You have a Microsoft SQL Server 2014 named SRV2014 that has a single tempdb database file. The tempdb database file is eight gigabytes (GB) in size.

You install a SQL Server 2016 instance named SQL Server 2016 by using default settings.

The new instance has eight logical processor cores.

You plan to migrate the databases from SRV2014 to SRV2016.

You need to configure the tempdb database on SRV2016. The solution must minimize the number of future tempdb autogrowth events.

What should you do?

A. Increase the size of the tempdb datafile to 8 GB. In the tempdb database, set the value of the MAXDOP property to8.

B. Increase the size of the tempdb data files to1 GB.

C. Add seven additional tempdb data files. In the tempdb database, set the value of the MAXDOP property to8.

D. Setthe value for the autogrowth setting for the tempdb data file to128megabytes (MB). Add seven additional tempdb data files and set the autogrowth value to128 MB.

Correct Answer: B

In an effort to simplify the tempdb configuration experience, SQL Server 2016 setup has been extended to configure various properties for tempdb for multi-processor environments.

1.

A new tab dedicated to tempdb has been added to the Database Engine Configuration step of setup workflow.

2.

Configuration options: Data Files

*

Number offiles – this will default to the lower value of 8 or number of logical cores as detected by setup.

*

Initial size – is specified in MB and applies to each tempdb data file. This makes it easier to configure all files of same size. Total initial size is the cumulative tempdb data file size (Number of files * Initial Size) that will be created.

*

Autogrowth – is specified in MB (fixed growth is preferred as opposed to a non-linear percentage based growth) and applies to each file. The default value of 64MBwas chosen to cover one PFS interval.

Figure:

References:https://blogs.msdn.microsoft.com/psssql/2016/03/17/sql-2016-it-just-runsfaster-automatic-tempdb-configuration/


Question 2:

You have a database named DB1 that uses simple recovery mode.

Full backups of DB1 are taken daily and DB1 is checked for corruption before each backup.

There was no corruption when the last backup was complete.

You run the sys.columns catalog view and discover corrupt pages.

You need to recover the database. The solution must minimize data loss.

What should you do?

A. Run RESTORE DATABASE WITH RECOVERY.

B. Run RESTORE DATABASE WITH PAGE.

C. Run DBCC CHECKDB and specify the REPAIR_ALLOW_DATA_LOSS parameter.

D. Run DBCC CHECKDB and specify the REPAIT_REBUILD parameter.

Correct Answer: B

A page restore is intended for repairing isolated damaged pages. Restoring and recovering a few individual pages might be faster than a file restore, reducing the amount of data that is offline during a restore operation.

RESTORE DATABASE WITH PAGE

Restores individual pages. Page restore is available only under the full and bulk-logged recovery models.

References: https://docs.microsoft.com/en-us/sql/t-sql/statements/restore-statements- transact-sql


Question 3:

You administer a Microsoft SQL Server 2014 instance that has several SQL Server Agent jobs configured.

When SQL Server Agent jobs fail, the error messages returned by the job steps do not provide the required detail.

The following error message is an example error message:

“The job failed. The Job was invoked by User CONTOSO\ServiceAccount. The last step to run was step 1 (Subplan_1).”

You need to ensure that all available details of the job step failures for SQL Server Agent jobs are retained.

What should you do?

A. Configure output files.

B. Expand agent logging to include information from all events.

C. Disable the Limit size of job history log feature.

D. Configure event forwarding.

Correct Answer: B

References: http://msdn.microsoft.com/en-us/library/ms175488.aspx


Question 4:

You need to maximize performance of writes to each database without requiring changes to existing database tables.

In the table below, identify the database setting that you must configure for each database.

NOTE: Make only one selection in each column. Each correct selection is worth one point.

Hot Area:

Correct Answer:

DB1: DELAYED_DURABILITY=FORCED

From scenario: Thousands of records are inserted into DB1 or updated each second.

Inserts are made by many different external applications that your company\’s developers do not control. You observe that transaction log write latency is a bottleneck in performance. Because of the transient nature of all the data in this

database, the business can tolerate some data loss in the event of a server shutdown.

With the DELAYED_DURABILITY=FORCED setting, every transaction that commits on the database is delayed durable.

With the DELAYED_DURABILITY= ALLOWED setting, each transaction’s durability is determined at the transaction level.

Note: Delayed transaction durability reduces both latency and contention within the system because:

*

The transaction commit processing does not wait for log IO to finish and return control to the client.

*

Concurrent transactions are less likely to contend for log IO; instead, the log buffer can be flushed to disk in larger chunks, reducing contention, and increasing throughput.

DB2: ALLOW_SNAPSHOT_ISOLATION ON and READ_COMMITTED_SNAPSHOT ON Snapshot isolation enhances concurrency for OLTP applications.

Snapshot isolation must be enabled by setting the ALLOW_SNAPSHOT_ISOLATION ON database option before it is used in transactions.

The following statements activate snapshot isolation and replace the default READ COMMITTED behavior with SNAPSHOT:

ALTER DATABASE MyDatabase

SET ALLOW_SNAPSHOT_ISOLATION ON

ALTER DATABASE MyDatabase

SET READ_COMMITTED_SNAPSHOT ON

Setting the READ_COMMITTED_SNAPSHOT ON option allows access to versioned rows under the default READ COMMITTED isolation level.

From scenario: The DB2 database was migrated from SQLServer 2012 to SQL Server 2016. Thousands of records are updated or inserted per second. You observe that the WRITELOG wait type is the highest aggregated wait type. Most

writes must have no tolerance for data loss in the event of a server shutdown. The business has identified certain write queries where data loss is tolerable in the event of a server shutdown.

References: https://msdn.microsoft.com/en-us/library/dn449490.aspx https://msdn.microsoft.com/en-us/library/tcbchxcb(v=vs.110).aspx


Question 5:

You plan to deploy two new Microsoft Azure SQL Database instances. Once instance will support a data entry application. The other instance will support the company’s business intelligence efforts. The databases will be accessed by mobile

applications from public IP addresses.

You need to ensure that the database instances meet the following requirements:

The database administration team must receive alerts for any suspicious activity in the data entry database, including potential SQL injection attacks.

Executives around the world must have access to the business intelligence application.

Sensitive data must never be transmitted. Sensitive data must not be stored in plain text in the database.

In the table below, identify the feature that you must implement for each database. NOTE: Make only one selection in each column. Each correct selection is work one point.

Hot Area:

Correct Answer:

Data entry: Threat Detection SQL Threat Detection provides a new layer of security, which enables customers to detect and respond to potential threats as they occur by providing security alerts on anomalous activities. Users receive an alert upon suspicious database activities, potential vulnerabilities, and SQL injection attacks, as well as anomalous database access patterns. Business intelligence: Dynamic Data Masking Dynamic data masking limits (DDM) sensitive data exposure by masking it to nonprivileged users. It can be used to greatly simplify the design and coding of security in your application.

References: https://docs.microsoft.com/en-us/azure/sql-database/sql-database-threat-detection https://docs.microsoft.com/en-us/sql/relational-databases/security/dynamic-data-masking


70-765 VCE Dumps70-765 Study Guide70-765 Exam Questions

Question 6:

A new Azure Active Directory security principal named [email protected] should have access to select all current and future objects in the Reporting database. You should not grant the principal any other permissions. You should use your Active Directory Domain Services (AD DS) account to authenticate to the Azure SQL database.

You need to create the new security principal.

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:

To provision an Azure AD-based contained database user (other than the server administrator that owns the database), connect to the database (here the Reporting database) with an Azure AD identity (not with a SQL Server account) that

has access to the database.

Step 2: CREATE USER … FROM EXTERNAL PROVIDER

To create an Azure AD-based contained database user (other than the server administrator that owns the database), connect to the database with an Azure AD identity, as a user with at least the ALTER ANY USER permission. Then use the

following Transact-SQL syntax:

CREATE USER

FROM EXTERNAL PROVIDER;

Step 3:

Grant the proper reading permissions.

References:https://docs.microsoft.com/en-us/azure/sql-database/sql-database-aadauthentication


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