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70-464 PDF DEMO:

QUESTION NO: 1
You need to resolve the performance issues of the usp_ExportOpenings stored procedure.
The solution must minimize the amount of hard disk space used.
Which statement should you execute on DB1?
A. EXEC sp_recompile 'usp_ExportOpenings';
B. EXEC sp_dboption 'DB1', 'auto create statistics', 'TRUE';
C. CREATE INDEX IX_Exp_Openings ON Openings(PostDate) INCLUDE (Description, Title, Salary)
WHERE FilledDate IS NULL;
D. CREATE INDEX IX_Exp_Openings ON Openings(PostDate, FilledDate) INCLUDE (Description, Title,
Salary);
Answer: C

QUESTION NO: 2
You plan to create a new table that has the following requirements:
* Uses a GUID data type as the primary key.
* Uses a clustered index as the primary key.
* Minimizes fragmentation.
You need to recommend which option to include in the CREATE statement.
Which option should you include?
More than one answer choice may achieve the goal. Select the BEST answer.
A. @@IDENTITY
B. IDENTITY
C. NEWSEQUENTIALID
D. NEWID
Answer: C

QUESTION NO: 3
You plan to deploy two stored procedures name USP_1 and USP_2 that read data from a database.
Your company identifies the following requirements for each stored procedure:
USP_1 cannot allow dirty reads.
USP_2 must place range locks on the data to ensure read consistency.
You need to identify which isolation level you must set for each stored procedure. The solution must minimize the number of locks.
Which isolation level should you identify?
To answer, drag the appropriate isolation level to the correct stored procedure in the answer area.
(Answer choices may be used once, more than once, or not at all.)
Answer:
Explanation:
* read committed
READ COMMITTED
Specifies that shared locks are held while the data is being read to avoid dirty reads, but the data can be changed before the end of the transaction, resulting in nonrepeatable reads or phantom data.
This option is the SQL Server default.
* SERIALIZABLE
Places a range lock on the data set, preventing other users from updating or inserting rows into the data set until the transaction is complete. This is the most restrictive of the four isolation levels.
Because concurrency is lower, use this option only when necessary. This option has the same effect as setting HOLDLOCK on all tables in all SELECT statements in a transaction.

QUESTION NO: 4
You need to create the object used by the parameter of usp_UpdateEmployeeName.
Which code segment should you use?
A. CREATE TABLE EmployeesInfo
B. CREATE TYPE EmployeesInfo AS Table
C. CREATE SCHEMA EmployeesInfo
D. CREATE XML SCHEMA COLLECTION EmployeesInfo
Answer: B
Explanation:
Example Usage of Table-Valued Parameters (Database Engine)
http://msdn.microsoft.com/en-us/library/bb510489.aspx (Benefits of using Table-Valued
Parameters)
/* Create a table type. */
CREATE TYPE LocationTableType AS TABLE
( LocationName VARCHAR(50)
, CostRate INT );
GO
/* Create a procedure to receive data for the table-valued parameter. */ CREATE PROCEDURE dbo.
usp_InsertProductionLocation
@TVP LocationTableType READONLY
AS
SET NOCOUNT ON
INSERT INTO AdventureWorks2012.Production.Location
(Name
,CostRate
,Availability
,ModifiedDate)
SELECT *, 0, GETDATE()
FROM @TVP;
GO
Also:
http://msdn.microsoft.com/en-us/library/ms175007.aspx(CREATE TYPE *tabletypename* AS TABLE)
http://msdn.microsoft.com/en-us/library/ms175010.aspx(table data types) Wrong Answers:
http://msdn.microsoft.com/en-us/library/ms174979.aspx(CREATE TABLE)
http://msdn.microsoft.com/en-us/library/ms189462.aspx(CREATE SCHEMA)
http://msdn.microsoft.com/en-us/library/ms176009.aspx(CREATE XML SCHEMA COLLECTION)

QUESTION NO: 5
You need to monitor the health of your tables and indexes in order to implement the required index maintenance strategy.
What should you do?
A. Create a SQL Agent alert when the File Table: Avg time per file I/O request value is increasing.
B. Query system DMVs to monitor total_bucket_count. Create alerts to notify you when this value increases.
C. Query system DMVs to monitor avg_chain_length and max_chain_length. Create alerts to notify you when these values converge.
D. Query system DMVs to monitor total_bucket_count. Create alerts to notify you when this value decreases.
Answer: C
Explanation:
From scenario:
* You need to anticipate when POSTransaction table will need index maintenance.
* The index maintenance strategy for the UserActivity table must provide the optimal structure for both maintainability and query performance.

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Updated: May 28, 2022