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You plan to deploy 20 Microsoft Azure SQL Database instances to an elastic pool in Azure to support a batch processing application.
Two of the databases in the pool reach their peak workload threshold at the same time every day. This leads to inconsistent performance for batch completion.
You need to ensure that all batches perform consistently.
What should you do?
A. Create an In-Memory table.
B. Increase the storage limit in the pool.
C. Implement a readable secondary database.
D. Increase the total number of elastic Database Transaction Units (eDTUs) in the pool.
Correct Answer: D
In SQL Database, the relative measure of a database\’s ability tohandle resource demands is expressed in Database Transaction Units (DTUs) for single databases and elastic DTUs (eDTUs) for databases in an elastic pool.
A pool is given a set number of eDTUs, for a set price. Within the pool, individual databases are given the flexibility to auto-scale within set parameters. Under heavy load, a database can consume more eDTUs to meet demand.
Additional eDTUs can be added to an existing pool with no database downtime.
You administer a Microsoft SQL Server 2014 database named ContosoDb. Tables are defined as shown in the exhibit. (Click the Exhibit button.)
You need to display rows from the Orders table for the Customers row having the CustomerId value set to 1 in the following XML format.
Which Transact-SQL query should you use?
A. SELECT OrderId, OrderDate, Amount, Name, CountryFROM OrdersINNER JOIN CustomersON Orders.CustomerId = Customers-CustomerIdWHERE Customers.CustomerId = 1FOR XML RAW
B. SELECT OrderId, OrderDate, Amount, Name, CountryFROM OrdersINNER JOIN CustomersON Orders.CustomerId = Customers.CustomerIdWHERE Customers.CustomerId = 1FOR XML RAW, ELEMENTS
C. SELECT OrderId, OrderDate, Amount, Name, CountryFROM OrdersINNER JOIN CustomersON Orders.CustomerId = Customers.CustomerIdWHERE Customers.CustomerId = 1FOR XML AUTO
D. SELECT OrderId, OrderDate, Amount, Name, CountryFROM OrdersINNER JOIN CustomersON Orders.CustomerId-Customers.CustomerIdWHERE Customers.CustomerId= 1FOR XML AUTO, ELEMENTS
E. SELECT Name, Country, Orderld, OrderDate, AmountFROM OrdersINNER JOIN CustomersON Orders.CustomerId= Customers.CustomerIdWHERE Customers.CustomerId= 1FOR XML AUTO, ELEMENTS
F. SELECT Name, Country, Crderld, OrderDate, AmountFROM OrdersINNER JOIN CustomersON Orders.CustomerId= Customers.CustomerIdWHERE Customers.CustomerId= FOR XML AUTO, ELEMENTS
G. SELECT Name AS `@Name\’, CountryAS `@Country\’, OrderId, OrderDate, AmountFROM OrdersINNER JOIN CustomersON Orders.CustomerId= Customers.CustomerIdWHERE Customers.CustomerId= 1FOR XML PATH (`Customers\’)
H. SELECT Name AS `Customers/Name\’, CountryAS `Customers/Country\’, OrderId, OrderDate, AmountFROM OrdersINNER JOIN CustomersON Orders.CustomerId= Customers.CustomerIdWHERE Customers.CustomerId= 1FOR XML PATH (`Customers\’
Correct Answer: E
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/
You administer a Microsoft SQL Server 2014 database named Contoso on a server named Server01.
You need to be notified immediately when fatal errors occur on Server01.
What should you create?
A. A Database Audit Specification
B. A Policy
C. An Alert
D. A SQL Profiler Trace
E. A Resource Pool
F. An Extended Event session
G. A Server Audit Specification
Correct Answer: C
SQL Server has alerts that get more important based on the severity of the alert. Anything of severity 16 or below tends to refer to the database and deals with issues that are tied to syntax errors, violations of foreign keys, etc. While those errors are typically important, they don\’t refer to anything with regards to overall health of the SQL Server. Alerts 17 through 25 do. Those are the ones your health checks are probably firing on.
References: https://www.mssqltips.com/sqlservertip/3384/configuring-critical-sql-server- alerts/
You administer a Windows 2008 server hosting an instance of Microsoft SQL Server 2014 Standard Edition. The server hosts a database named Orders.
Users report that a query that filters on OrderDate is taking an exceptionally long time. You discover that an index named IX_OrderDate on the CustomerOrder table is heavily fragmenteD.
You need to improve the performance of the IX_OrderDate index. The index should remain online during the operation.
Which Transact-SQL command should you use?
A. ALTER INDEX IX_OrderDateON CustomerOrder DISABLE
B. ALTER INDEX IX_OrderDateON CustomerOrder ENABLE
C. ALTER INDEX IX_OrderDateON CustomerOrder REORGANIZE
D. ALTER INDEX IX OrderDateON CustomerOrder REBUILD
Correct Answer: C
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).
You administer a Microsoft SQL Server 2014 instance that contains a financial database hosted on a storage area network (SAN).
The financial database has the following characteristics:
The database is continually modified by users during business hours from Monday through Friday between 09:00 hours and 17:00 hours. Five percent of the existing data is modified each day.
The Finance department loads large CSV files into a number of tables each business day at 11:15 hours and 15:15 hours by using the BCP or BULK INSERT commands. Each data load adds 3 GB of data to the database.
These data load operations must occur in the minimum amount of time.
A full database backup is performed every Sunday at 10:00 hours. Backup operations will be performed every two hours (11:00, 13:00, 15:00, and 17:00) during business hours.
On Wednesday at 10:00 hours, the development team requests you to refresh the database on a development server by using the most recent version.
You need to perform a full database backup that will be restored on the development server.
Which backup option should you use?
J. Transaction log
K. DBO ONLY
N. CONTINUE AFTER ERROR
Correct Answer: L
COPY_ONLY specifies that the backup is a copy-only backup, which does not affect the normal sequence of backups. A copy-only backup is created independently of your regularly scheduled, conventional backups. A copy-only backup does not affect your overall backup and restore procedures for the database. https://docs.microsoft.com/en-us/sql/t-sql/statements/backup-transact-sql
You administer a Windows Azure SQL Database database named Inventory that contains a stored procedure named p_AddInventory.
Users need to be able to SELECT from all tables in the database and execute the stored procedure.
You need to grant only the necessary permissions.
What should you do?
A. Grant EXECUTE permission on p_AddInventory to all users. Grant VIEW DEFINITION to all users.
B. Grant EXECUTE permission on p_AddInventory to all users. Add all users to the db_datawriter role.
C. Add all users to the db_owner role.
D. Grant EXECUTE permission on p_AddInventory to all users. Add all users to the db_datareader role.
Correct Answer: D
Members of the db_datareader fixed database role can run a SELECT statement against any table or view in the database. References:https://technet.microsoft.com/en-us/library/ms188629(v=sql.90).aspx
You need to optimize SRV1.
What configuration changes should you implement? To answer, select the appropriate option from each list in the answer area.
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.
You have an on-premises database.
You plan to migrate the database to Microsoft SQL Server on a Microsoft Azure virtual machine.
You move the database files to Azure.
You need to attach the database files to the SQL Server instance on the virtual machine.
The solution must ensure that you can run file snapshot backups.
How should you complete the statement? To answer, select the appropriate options in the answer area.
NOTE: Each correct selection is worth one point.
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.
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
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