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QUESTION NO:2

You are designing your maintenance plan.

Which command should you use only during the monthly maintenance window?

A. DBCC INDEXDEFRAG (ProdDB, SalesOrderDetail, SODIndex)

B. ALTER INDEX SODIndex ON SalesOrderDetail REORGANIZE

C. ALTER INDEX SODIndex ON SalesOrderDetail REBUILD

D. ALTER INDEX SODIndex ON SalesOrderDetail REBUILD WITH (ONLINE * ON)

Correct Answer: D

Explanation

Explanation/Reference:

* Scenario: Database Issues

The current database does not perform well. Additionally, a recent disk problem caused the system to go down, resulting in lost sales revenue. In reviewing the

current system, you found that there are no automated maintenance procedures. The database is severely fragmented, and everyone has read and write access.

* After the degree of fragmentation is known, use the following table to determine the best method to correct the fragmentation.

avg_fragmentation_in_percent value

/ > 5% and < = 30%

then use

ALTER INDEX REORGANIZE

/ > 30%

then use

ALTER INDEX REBUILD WITH (ONLINE = ON)

QUESTION NO:2

You need to recommend a solution that addresses the index fragmentation and index width issue. What should you include in the recommendation? (Each correct

answer presents part of the solution. Choose all that apply.)

A. Change the data type of the lastModified column to smalldatetime.

B. Remove the lastModified column from the clustered index.

C. Change the data type of the modifiedBy column to tinyint.

D. Change the data type of the id column to bigint.

E. Remove the modifiedBy column from the clustered index.

F. Remove the id column from the clustered index.

Correct Answer: BE

Explanation

Explanation/Reference:

Scenario: Index Fragmentation Issues

Customers discover that clustered indexes often are fragmented. To resolve this issue, the customers defragment the indexes more frequently.

All of the tables affected by fragmentation have the following columns that are used as the clustered index key:

QUESTION NO:10

You need to recommend an isolation level for usp_UpdateOrderDetails.

Which isolation level should recommend?

A. Read committed

B. Repeatable read

C. Read uncommitted

D. Serializable

Correct Answer: B

Explanation

Explanation/Reference:

* Scenario: Databasel will also contain a stored procedure named usp_UpdateOrderDetails. The stored procedure is used to update order information. The stored

procedure queries the Orders table twice each time the procedure executes. The rows returned from the first query must be returned on the second query

unchanged along with any rows added to the table between the two read operations.

* REPEATABLE READ

Specifies that statements cannot read data that has been modified but not yet committed by other transactions and that no other transactions can modify data that

has been read by the current transaction until the current transaction completes.

Testlet 1

Contoso Ltd

Overview

Application Overview

Contoso, Ltd., is the developer of an enterprise resource planning (ERP) application. Contoso is designing a new version of the ERP application. The previous

version of the ERP application used SQL Server 2008 R2. The new version will use SQL Server 2014. The ERP application relies on an import process to load

supplier data. The import process updates thousands of rows simultaneously, requires exclusive access to the database, and runs daily.

You receive several support calls reporting unexpected behavior in the ERP application. After analyzing the calls, you conclude that users made changes directly

to the tables in the database.

Tables

The current database schema contains a table named OrderDetails. The OrderDetails table contains information about the items sold for each

purchase order. OrderDetails stores the product ID, quantities, and discounts applied to each product in a purchase order. The product price is

stored in a table named Products.

The Products table was defined by using the SQL_Latin1_General_CPl_CI_AS collation. A column named ProductName was created by using the varchar data

type.

The database contains a table named Orders. Orders contains all of the purchase orders from the last 12 months. Purchase orders that are older than 12 months

are stored in a table named OrdersOld.

Stored Procedures

The current version of the database contains stored procedures that change two tables. The following shows the relevant portions of the two stored procedures:

Customer Problems

Installation Issues

The current version of the ERP application requires that several SQL Server logins be set up to function correctly. Most customers set up the ERP application in

multiple locations and must create logins multiple times.

Index Fragmentation Issues

Customers discover that clustered indexes often are fragmented. To resolve this issue, the customers defragment the indexes more frequently.

All of the tables affected by fragmentation have the following columns that are used as the clustered index key:

Backup Issues

Customers who have large amounts of historical purchase order data report that backup time is unacceptable.

Search Issues

Users report that when they search product names, the search results exclude product names that contain accents, unless the search string includes the accent.

Missing Data Issues

Customers report that when they make a price change in the Products table, they cannot retrieve the price that the item was sold for in previous orders.

Query Performance Issues

Customers report that query performance degrades very quickly. Additionally, the customers report that users cannot run queries when SQL Server runs

maintenance tasks.

Import Issues

During the monthly import process, database administrators receive many supports call from users who report that they cannot access the supplier data. The

database administrators want to reduce the amount of time required to import the data.

Design Requirements

File Storage Requirements

The ERP database stores scanned documents that are larger than 2 MB. These files must only be accessed through the ERP application. File access must have

the best possible read and write performance.

Data Recovery Requirements

If the import process fails, the database must be returned to its prior state immediately.

Security Requirements

You must provide users with the ability to execute functions within the ERP application, without having direct access to the underlying tables.

Concurrency Requirements

You must reduce the likelihood of deadlocks occurring when Sales.Proc1 and Sales.Proc2 execute.

QUESTION NO:7

You need to recommend a solution to ensure that USP_4 adheres to the security requirements.

What should you include in the recommendation?

A. Enable SQL Server Audit.

B. Enable trace flags.

C. Configure data manipulation language (DML) triggers.

D. Enable C2 audit tracing.

Correct Answer: A

Explanation

Explanation/Reference:

* Scenario: 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.

* Beginning in SQL Server 2008 Enterprise, you can set up automatic auditing by using SQL Server Audit.

QUESTION NO:1

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

Correct Answer: C

Explanation

Explanation/Reference:

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.

QUESTION NO:6

You need to recommend a solution to improve the performance of usp.UpdateInventory. The solution must minimize the amount of development effort.

What should you include in the recommendation?

A. A table variable

B. A common table expression

C. A subquery

D. A cursor

Correct Answer: A

Explanation

Explanation/Reference:

*Scenario: Database2 will contain a stored procedure named usp_UpdateInventory. Usp_UpdateInventory will manipulate a table that contains a self-join that has

an unlimited number of hierarchies.

* A table variable can be very useful to store temporary data and return the data in the table format.

* Example: The following example uses a self-join to find the products that are supplied by more than one vendor.

Because this query involves a join of the ProductVendor table with itself, the ProductVendor table appears in two roles. To distinguish these roles, you must give

the ProductVendor table two different aliases (pv1 and pv2) in the FROM clause. These aliases are used to qualify the column names in the rest of the query.

This is an example of the self-join Transact-SQL statement:

USE AdventureWorks2008R2;

GO

SELECT DISTINCT pv1.ProductID, pv1.VendorID

FROM Purchasing.ProductVendor pv1

INNER JOIN Purchasing.ProductVendor pv2

ON pv1.ProductID = pv2.ProductID

AND pv1.VendorID pv2.VendorID

ORDER BY pv1.ProductID

Incorrect:

Not B: Using a CTE offers the advantages of improved readability and ease in maintenance of complex queries. The query can be divided into separate, simple,

logical building blocks. These simple blocks can then be used to build more complex, interim CTEs until the final result set is generated.

QUESTION NO:10

You need to recommend a change to USP_3 to ensure that the procedure completes only if all of the UPDATE statements complete.

Which change should you recommend?

A. Set the XACT_ABORT option to off

B. Set the XACT_ABORT option to on.

C. Set the IMPLICIT_TRANSACTIONS option to off.

D. Set the IMPLICIT_TRANSACTIONS option to on.

Correct Answer: B

Explanation

Explanation/Reference:

* 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.

* When SET XACT_ABORT is ON, if a Transact-SQL statement raises a run-time error, the entire transaction is terminated and rolled back.

QUESTION NO:4

You need to recommend a solution for Application1 that meets the security requirements.

What should you include in the recommendation?

A. Signed stored procedures

B. Certificate Authentication

C. Encrypted columns

D. Secure Socket Layer (SSL)

Correct Answer: A

Explanation

Explanation/Reference:

* Scenario:

/ Data from Database2 will be accessed periodically by an external application named Application1

/ Application developers must be denied direct access to the database tables. Applications must be denied direct access to the tables.

QUESTION NO:2

You create a stored procedure that retrieves all of the rows from a table named Table1.

You need to recommend a solution to ensure that all of the statements in the stored procedure can be executed if another transaction is modifying rows in Table1

simultaneously.

What should you recommend?

A. Snapshot isolation

B. A database snapshot

C. Filegroups

D. Indexes

Correct Answer: A

Explanation

Explanation/Reference:

Once snapshot isolation is enabled, updated row versions for each transaction are maintained in tempdb. A unique transaction sequence number identifies each

transaction, and these unique numbers are recorded for each row version. The transaction works with the most recent row versions having a sequence number

before the sequence number of the transaction. Newer row versions created after the transaction has begun are ignored by the transaction.

QUESTION NO:5

You deploy a SQL Server instance named SQLProd that uses SQL Server 2014.

You need to recommend a solution to monitor the transactions that are running currently against SQLProd. The solution must minimize the amount of custom

code required.

What should you recommend?

A. Statistics

B. A dynamic management view

C. A trigger

D. User-defined views

Correct Answer: B

Explanation

Explanation/Reference:

Dynamic management views and functions return server state information that can be used to monitor the health of a server instance, diagnose problems, and

tune performance.

Transactions can be monitored.

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