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Microsoft 070-457 Exam Syllabus Topics:

Microsoft Transition Your MCTS on SQL Server 2008 to MCSA: SQL Server 2012, Part 1 Sample Questions:

1. You administer three Microsoft SQL Server 2008 R2 instances. Database mirroring is configured in High-Safety mode with Automatic Failover between the following three servers:
SQL1 is the Principal server.
SQL2 is the mirror server.
SQL3 is the witness server.
You need to upgrade SQL1 and SQL2 to SQL Server 2012. You need to ensure that downtime is minimized during the upgrade. Which six actions should you perform in sequence? (To answer, move the appropriate actions from the list of actions to the answer area and arrange them in the correct order.)
Build List and Reorder:

2. You administer a Microsoft SQL Server 2012 instance that has several SQL Server Agent jobs configured.
When SQL Server Agent jobs fail, the error messages returned by the job steps do not provide the required
detail. The following error message is an example error message:
"The job failed. The Job was invoked by User CONTOSO\ServiceAccount. The last step to run was step 1
(Subplan_1)."
You need to ensure that all available details of the job step failures for SQL Server Agent jobs are retained.
What should you do?

A) Expand agent logging to include information from all events.
B) Disable the Limit size of job history log feature.
C) Configure event forwarding.
D) Configure output files.

3. You develop a database for a travel application. You need to design tables and other database objects. You create the Airline_Schedules table. You need to store the departure and arrival dates and times of flights along with time zone information. What should you do?

A) Enable the Optimize for ad hoc workloads option.
B) Include a SET STATISTICS PROFILE ON statement before you run the query.
C) Add a columnstore index to cover the query.
D) Add a LOOP hint to the query.
E) Include a SET FORCEPLAN ON statement before you run the query.
F) Add a FORCESCAN hint to the Attach query.
G) Add a HASH hint to the query.
H) Cover the unique clustered index with a columnstore index.
I) Add a FORCESEEK hint to the query.
J) Add an INCLUDE clause to the index.

4. You have a database that contains the tables shown in the exhibit. (Click the Exhibit button.)

You need to create a query that calculates the total sales of each OrderId from the Sales.Details table. The solution must meet the following requirements:
Use one-part names to reference columns.
Sort the order of the results from OrderId.
NOT depend on the default schema of a user.
Use an alias of TotalSales for the calculated ExtendedAmount.
Display only the OrderId column and the calculated TotalSales column.
Which code segment should you use?
To answer, type the correct code in the answer area.

A) SELECT OrderID, SUM(ExtendedAmount) AS TotalSales FROM Sales.Details GROUP BY OrderID ORDER BY OrderID
B) SELECT OrderID, SUM(ExtendedAmount) AS TotalSales FROM Sales.Details ORDER BY OrderID

5. You create a table that has the StudentCode, SubjectCode, and Marks columns to record mid-year marks for students. The table has marks obtained by 50 students for various subjects. You need to ensure that the top half of the students arranged by their average marks must be given a rank of 1 and the remaining students must be given a rank of 2. Which Transact-SQL query should you use?

A) SELECT StudentCode as Code,
DENSE_RANK() OVER (ORDER BY AVG (Marks) DESC) AS Value
FROM StudentMarks
GROUP BY StudentCode
B) SELECT StudentCode AS Code,Marks AS Value FROM ( SELECT StudentCode, Marks AS Marks, RANXO OVER (PARTITION BY StudentCode ORDER BY Marks DESC) AS Rank
FROM StudentMarks) tmp
WHERE Rank = 1
C) SELECT StudentCode AS Code,Marks AS Value FROM ( SELECT StudentCode, Marks AS Marks, RANK() OVER (PARTITION BY SubjectCode ORDER BY Marks ASC) AS Rank
FROM StudentMarks) tmp
WHERE Rank = 1
D) SELECT StudentCode AS Code,Marks AS Value FROM ( SELECT StudentCode, Marks AS Marks, RANK() OVER (PARTITION BY SubjectCode ORDER BY Marks DESC) AS Rank
FROM StudentMarks) tmp
WHERE Rank = 1
E) SELECT StudentCode as Code,
RANK() OVER (ORDER BY AVG (Marks) DESC) AS Value
FROM StudentMarks
GROUP BY StudentCode
F) SELECT StudentCode AS Code,Marks AS Value FROM (
SELECT StudentCode, Marks AS Marks,
RANK () OVER (PARTITION BY StudentCode ORDER BY Marks ASC) AS Rank
FROM StudentMarks) tmp
WHERE Rank = 1
G) SELECT StudentCode as Code,
NTILE (2) OVER (ORDER BY AVG (Marks) DESC) AS Value
FROM StudentMarks
GROUP BY StudentCode
H) SELECT Id, Name, Marks,
DENSE_RANK() OVER (ORDER BY Marks DESC) AS Rank
FROM StudentMarks

Solutions: