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Vendor: Microsoft
Exam Code: 70-469
Exam Name: Recertification for MCSE: Data Platform

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QUESTION 101
You need to implement changes to the system to reduce contention and improve performance of the SalesOrderDetail table.
Which three actions should you perform? Each correct answer presents part of the solution. Choose three.

A.    Use (SNAPSHOT] hints in the report queries
B.    ALTER DATABASE [ProdDB] SET READ_COMMITTED_SNAPSHOT ON
C.    ALTER DATABASE [ProdDB] SET READ_COMMITTED_SNAPSHOT OFF
D.    SET TRANSACTION ISOLATION LEVEL SNAPSHOT
E.    Use (TABLOCK) hints in the report queries
F.    SET TRANSACTION ISOLATION LEVEL SERIALIZABLE
G.    ALTER DATABASE [ProdDB] SET ALLOW.SNAPSHOT ISOLATION ON
H.     Use (SNAPSHOT] hints in the update statements

Answer: ABF
Explanation:
* Scenario:
The SalesOrderDetail table holds the details about each sale. It is in the Sales schema owned by the SalesStaff Windows group.
This table is constantly being updated, inserted into, and read.
* Regardless of which office runs a sales force report, the SalesOrderDetail table should only return valid, committed order data; any orders not yet committed should be ignored.
* READ_COMMITTED_SNAPSHOT { ON | OFF }
ON
Enables Read-Committed Snapshot option at the database level. When it is enabled, DML statements start generating row versions even when no transaction uses Snapshot Isolation. Once this option is enabled, the transactions specifying the read committed isolation level use row versioning instead of locking. When a transaction runs at the read committed isolation level, all statements see a snapshot of data as it exists at the start of the statement.
OFF
Turns off Read-Committed Snapshot option at the database level. Transactions specifying the READ COMMITTED isolation level use locking.
ALTER DATABASE SET Options (Transact-SQL)
SET Statements (Transact-SQL)

QUESTION 102
Drag and Drop Questions
The business requires a satellite office to have a local copy of the data to report against.
You want to implement a solution to support the requirements.
You need to establish a new Availability Group between the two servers.
Develop the solution by selecting and arranging the required code blocks in the correct order. You may not need all of the code blocks.
 
Answer:
 

QUESTION 103
You need to change the ProdDB database.
Which two database options should you change to meet the requirements? Each correct answer presents part of the solution. Choose two.

A.    CONTAINS FILESTREAM
B.    Change recovery model to FULL
C.    CONTAINMENT = PARTIAL
D.    Change recovery model to BULK_LOGGED
E.    COLLATE IN.MEMORY
F.    CONTAINS MEMORY OPTIMIZED DATA

Answer: EF
Explanation:
* Scenario:
To help with performance, the database needs to be modified so that it can support in-memory data, specifically for the Product table, which the CIO has indicated should be a memory-optimized table.
Collations and Code Pages
FileGroupDefinition.ContainsMemoryOptimizedData Property (Microsoft.SqlServer.TransactSql.ScriptDom)

QUESTION 104
Drag and Drop Questions
You need to create a job to automate some database maintenance tasks.
Which code fragment should you use in each location in the command to complete one of the commands you will need to include in the job? To answer, drag the appropriate lines of code to the correct locations in the command. Each line of code may be used once, more than once, or not at all. You may need to drag the split bar between panes or scroll to view content.
 
Answer:
 

QUESTION 105
Drag and Drop Questions
You need to create the CustomerAccess table to support the reporting and performance requirements. Develop the solution by selecting and arranging the required code blocks in the correct order. You may not need all of the code blocks.
 
Answer:
 
QUESTION 106
You need to configure security on the Product table for customer support representatives.
Which two actions should you perform? Each correct answer presents part of the solution.
Choose two.

A.    Create a view called CustProduct that includes columns ProductID.
ProductName, Product Description, QuantityOnHand, ProductPrice, ProductCost, and ProductSupplierID.
B.    GRANT ALL on CustProduct TO OurDomain\CustomerSupport
C.    Create a user-defined data type called CustProduct that includes columns ProductID, ProductName,
Product Description, and ProductPrice.
D.    Create a view called CustProduct that includes columns ProductID, ProductName, Product Description,
QuantityOnHand, and ProductPrice.
E.    GRANT SELECT on CustProduct TO OurDomain\CustomerSupport.
F.    GRANT SELECT on CustProduct TO public.

Answer: AE
Explanation:
Give access to CustomerSupport through a view.
The view must include all these columns (refer to scenario).
GRANT Object Permissions (Transact-SQL)

Case Study 10 – A.Datum (Question 107 – Question 119)
Overview
General Overview
A. Datum Corporation has offices in Miami and Montreal.
The network contains a single Active Directory forest named adatum.com.
The offices connect to each other by using a WAN link that has a 5-ms latency.
A. Datum standardizes its database platform by using SQL Server 2014 Standard edition.
Databases
Each office contains databases named Sales. Inventory, Customers, Products, Personnel, and Dev.
Servers and databases are managed by a team of database administrators. Currently, all of the database administrators have the same level of permissions on all of the servers and all of the databases.
The Customers database contains two tables named Customers and Classifications. The following graphic shows the relevant portions of the tables:
 
The following table shows the current data in the Classifications table:
 
The Inventory database is used mainly for reports. The database is recreated every day.
A full backup of the database currently takes three hours to complete.
Stored Procedures
A stored procedure named USP_1 generates millions of rows of data for multiple reports. USP_1 combines data from five different tables from the Sales and Customers databases in a table named Table1.
After Table1 is created, the reporting process reads data from a table in the Products database and searches for information in Table1 based on input from the Products table. After the process is complete, Table1 is deleted.
A stored procedure named USP_2 is used to generate a product list. USP_2 takes several minutes to run due to locks on the tables the procedure accesses.
A stored procedure named USP_3 is used to update prices. USP_3 is composed of several UPDATE statements called in sequence from within a transaction. Currently, if one of the UPDATE statements fails, the stored procedure continues to execute.
A stored procedure named USP_4 calls stored procedures in the Sales, Customers, and Inventory databases. The nested stored procedures read tables from the Sales, Customers, and Inventory databases. USP_4 uses an EXECUTE AS clause.
A stored procedure named USP_5 changes data in multiple databases. Security checks are performed each time USP_5 accesses a database.
You suspect that the security checks are slowing down the performance of USP_5.
All stored procedures accessed by user applications call nested stored procedures. The nested stored procedures are never called directly.
Design Requirements
Data Recovery
You must be able to recover data from the Inventory database if a storage failure occurs. You have a Recovery Point Objective (RPO) of one hour.
You must be able to recover data from the Dev database if data is lost accidentally. You have a Recovery Point Objective (RPO) of one day.
Classification Changes
You plan to change the way customers are classified. The new classifications will have four levels based on the number of orders. Classifications may be removed or added in the future.
Management requests that historical data be maintained for the previous classifications.
Security
A group of junior database administrators must be able to view the server state of the SQL Server instance that hosts the Sales database. The junior database administrators will not have any other administrative rights.
A. Datum wants to track which users run each stored procedure.
Storage
A. Datum has limited storage. Whenever possible, all storage space should be minimized for all databases and all backups.
Error Handling
There is currently no error handling code in any stored procedure. You plan to log errors in called stored procedures and nested stored procedures. Nested stored procedures are never called directly.

QUESTION 107
You need to recommend a solution to minimize the amount of time it takes to execute USP_2.
What should you recommend?

A.    A database snapshot
B.    A table variable
C.    A temporary table
D.    Snapshot isolation

Answer: C
Explanation:
Scenario:
A stored procedure named USP_2 is used to generate a product list.
USP_2 takes several minutes to run due to locks on the tables the procedure accesses.
CREATE TABLE (SQL Server)

QUESTION 108
You need to recommend a solution for the error handling of USP_3.
The solution must minimize the amount of custom code required.
What should you recommend?

A.    Use the @@ERROR variable in the nested stored procedures.
B.    Use a TRY CATCH block in the called stored procedures.
C.    Use the @@ERROR variable in the called stored procedures.
D.    Use the RAISERROR command in the nested stored procedures.

Answer: B
Explanation:
* Must catch and handle the error.
* Scenario: A stored procedure named USP_3 is used to update prices.
USP_3 is composed of several UPDATE statements called in sequence from within a transaction. Currently, if one of the UPDATE statements fails, the stored procedure continues to execute.
TRY…CATCH (Transact-SQL)

QUESTION 109
You need to recommend a solution to minimize the amount of time it takes to execute USP_1.
With what should you recommend replacing Table1?

A.    An indexed view
B.    A function
C.    A table variable
D.    A temporary table

Answer: D
Explanation:
Scenario:
A stored procedure named USP_1 generates millions of rows of data for multiple reports.
USP_1 combines data from five different tables from the Sales and Customers databases in a table named Table1.
After Table1 is created, the reporting process reads data from a table in the Products database and searches for information in Table1 based on input from the Products table.
After the process is complete, Table1 is deleted.
CREATE TABLE (SQL Server)

QUESTION 110
You need to recommend a disaster recovery solution for the Dev database.
What should you include in the recommendation?

A.    The simple recovery model and full backups
B.    The bulk-logged recovery model and full backups
C.    The full recovery model, full backups, and differential backups
D.    The full recovery model, full backups, and transaction log backups

Answer: A
Explanation:
* Scenario:
You must be able to recover data from the Dev database if data is lost accidentally.
You have a Recovery Point Objective (RPO) of one day.
* The simple recovery model provides the simplest form of backup and restore. This recovery model supports both database backups and file backups, but does not support log backups. Transaction log data is backed up only with the associated user data. The absence of log backups simplifies managing backup and restore. . However, a database can be restored only to the end of the most recent backup.
Incorrect:
Not B: The bulk-logged recovery model is a special-purpose recovery model that should be used only intermittently to improve the performance of certain large-scale bulk operations, such as bulk imports of large amounts of data.
Recovery Models (SQL Server)


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