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2018 Mar Microsoft Official New Released 70-469
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Recertification for MCSE: Data Platform
Question No: 11 – (Topic 2)
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.)
-
Option A
-
Option B
-
Option C
-
Option D
-
Option E
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Option F
Answer: B,E
Explanation: Future delivery dates.
Question No: 12 – (Topic 2)
You need to provide referential integrity between the Sessions table and Speakers table.
Which code segment should you add at line 47 of Tables.sql?
-
Option A
-
Option B
-
Option C
-
Option D
Answer: B Explanation:
http://msdn.microsoft.com/en-us/library/ms189049.aspx http://msdn.microsoft.com/en-us/library/ms179610.aspx http://msdn.microsoft.com/en-us/library/ff878370.aspx
Question No: 13 – (Topic 2)
You need to create the object used by the parameter of usp_InsertSessions. Which statement should you use?
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CREATE XML SCHEMA COLLECTION SessionDataTable
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CREATE TYPE SessionDataTable AS Table
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CREATE SCHEMA SessionDataTable
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CREATE TABLE SessionDataTable
Answer: B
Question No: 14 – (Topic 2)
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?
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ALTER TABLE Attendees ADD Confirmed bit DEFAULT 0;
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ALTER TABLE Attendees
ADD Confirmed char(l) DEFAULT #39;1#39;;
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ALTER TABLE Attendees ADD Confirmed bit DEFAULT 1;
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ALTER TABLE Attendees
ADD Confirmed char(l) DEFAULT ‘1’;
Answer: A Explanation:
http://msdn.microsoft.com/en-us/library/ms177603.aspx
Question No: 15 – (Topic 2)
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?
-
Usp_UpdateSpeakerName to use the NOLOCK query hint
-
Usp_UpdateSpeakerName to use snapshot isolation
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Usp_SelectSpeakersByName to use the NOLOCK query hint
-
Usp_SelectSpeakersByName to use snapshot isolation
Answer: C Explanation: NOLOCK
Is equivalent to READUNCOMMITTED. READUNCOMMITTED
Specifies that dirty reads are allowed.
Question No: 16 – (Topic 2)
You are evaluating the table design.
You need to recommend a change to Tables.sql that reduces the amount of time it takes for usp_AttendeesReport to execute.
What should you add at line 14 of Tables.sql?
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FullName nvarchar(100) NOT NULL CONSTRAINT DF_FuIlName DEFAULT (dbo.CreateFullName (FirstName, LastName)),
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FullName AS (FirstName ‘ ‘ LastName),
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FullName nvarchar(100) NOT NULL DEFAULT (dbo.CreateFullName (FirstName, LastName)).
-
FullName AS (FirstName ‘ ‘ LastName) PERSISTED,
Answer: D Explanation:
http://msdn.microsoft.com/en-us/library/ms188300.aspx http://msdn.microsoft.com/en-us/library/ms191250.aspx
Question No: 17 – (Topic 2)
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?
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(LastName);
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(FirstName) INCLUDE (LastName);
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(LastName, FirstName);
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(LastName) INCLUDE (FirstName);
Answer: C
Question No: 18 – (Topic 2)
You need to create the object used by the parameter of usp_InsertSessions. Which statement should you use?
-
CREATE SCHEMA SessionDataTable
-
CREATE TYPE SessionDataTable AS Table
-
CREATE TABLE SessionDataTable
-
CREATE XML SCHEMA COLLECTION SessionDataTable
Answer: A
Question No: 19 – (Topic 2)
You execute usp_TestSpeakers.
You discover that usp_SelectSpeakersByName uses inefficient execution plans. You need to update usp_SelectSpeakersByName to ensure that the most efficient
execution plan is used.
What should you add at line 30 of Procedures.sql?
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OPTION (FORCESCAN)
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OPTION (FORCESEEK)
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OPTION (OPTIMIZE FOR UNKNOWN)
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OPTION (OPTIMIZE FOR (@LastName= #39;Anderson#39;))
Answer: C Explanation:
http://msdn.microsoft.com/en-us/library/ms181714.aspx
Question No: 20 – (Topic 2)
You need to recommend a solution to ensure that SQL1 supports the auditing requirements of usp_UpdateSpeakerName.
What should you include in the recommendation?
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The Distributed Transaction Coordinator (DTC)
-
Transactional replication
-
Change data capture
-
Change tracking
Answer: A
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