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2016/10 Latest Microsoft 70-469: Recertification for MCSE: Data Platform Exam Questions Updated Today!
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QUESTION 16
You need to add a new column named Confirmed to the Attendees table.
The solution must meet the following requirements:
- Have a default value of false.
- Minimize the amount of disk space used.
Which code block should you use?

A.    ALTER TABLE Attendees
ADD Confirmed bit DEFAULT 0;
B.    ALTER TABLE Attendees
ADD Confirmed char(l) DEFAULT '1';
C.    ALTER TABLE Attendees
ADD Confirmed bit DEFAULT 1;
D.    ALTER TABLE Attendees
ADD Confirmed char(l) DEFAULT `1';

Answer: A
Explanation:
http://msdn.microsoft.com/en-us/library/ms177603.aspx 1

QUESTION 17
You need to create the object used by the parameter of usp_InsertSessions.
Which statement should you use?

A.    CREATE XML SCHEMA COLLECTION SessionDataTable
B.    CREATE TYPE SessionDataTable AS Table
C.    CREATE SCHEMA SessionDataTable
D.    CREATE TABLE SessionDataTable

Answer: B

QUESTION 18
Developers report that usp_UpdateSessionRoom periodically returns error 3960.
You need to prevent the error from occurring.
The solution must ensure that the stored procedure returns the original values to all of the updated rows.
What should you configure in Procedures.sql?

A.    Replace line 46 with the following code:
SET TRANSACTION ISOLATION LEVEL SERIALIZABLE
B.    Replace line 46 with the following code:
SET TRANSACTION ISOLATION LEVEL REPEATABLE READ
C.    Move the SELECT statement at line 49 to line 57.
D.    Move the SET statement at line 46 to line 53.

Answer: A

QUESTION 19
You discover that usp.SelectSpeakersByName executes slowly if usp_UpdateSpeakerName executes simultaneously.
You need to minimize the execution time of usp.SelectSpeakersByName.
The solution must not affect the performance of the other stored procedures.
What should you update?

A.    Usp_UpdateSpeakerName to use the NOLOCK query hint
B.    Usp_UpdateSpeakerName to use snapshot isolation
C.    Usp_SelectSpeakersByName to use the NOLOCK query hint
D.    Usp_SelectSpeakersByName to use snapshot isolation

Answer: C
Explanation:
NOLOCK
Is equivalent to READUNCOMMITTED.
READUNCOMMITTED
Specifies that dirty reads are allowed.

QUESTION 20
While testing usp.GetFutureSessions, you discover that IX_Sessions is accessed by a scan rather than a seek.
You need to minimize the amount of time it takes to execute usp_GetFutureSessions.
What should you do? (Each correct answer presents part of the solution. Choose all that apply.)
 

A.    Option A
B.    Option B
C.    Option C
D.    Option D
E.    Option E
F.    Option F

Answer: BE
Explanation:
Future delivery dates.

QUESTION 21
You need to ensure that if any of the statements in usp_UpdateSpeakerName return an error message, all of the changes executed by usp_UpdateSpeakerName are not committed to the database.
What should you do in Procedures.sql? (Each correct answer presents part of the solution.
Choose all that apply.)
 
A.    Option A
B.    Option B
C.    Option C
D.    Option D
E.    Option E

Answer: BD

QUESTION 22
You are evaluating the index design.
You need to recommend a change to Indexes.sql that will minimize the amount of time it takes for usp_AttendeesReport to execute.
The solution must minimize the amount of database fragmentation.
Which line of code should you use to replace line 12 of Indexes.sql?

A.    (LastName);
B.    (FirstName) INCLUDE (LastName);
C.    (LastName, FirstName);
D.    (LastName) INCLUDE (FirstName);

Answer: C


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