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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 a Microsoft SQL Server 2012 database. You need to ensure that the size of the transaction log file does not exceed 2 GB. What should you do?

A) In SQL Server Management Studio, right-click the instance and select Database Settings. Set the maximum size of the file for the transaction log.
B) Use the ALTER DATABASE...SET LOGFILE command along with the midsize parameter.
C) In SQL Server Management Studio, expand the Storage leaf under the database. Select the transaction log file and set the maximum size of the file.
D) In SQL Server Management Studio, right-click the database, select Properties, and then click Files. Open the Transaction log Autogrowth window and set the maximum size of the file.

2. You are developing a database application by using Microsoft SQL Server 2012. You have a query that runs slower than expected. You need to capture execution plans that will include detailed information on missing indexes recommended by the query optimizer. What should you do?

A) Include a SET STATISTICS SHOWPLAN_XML ON statement before you run the query.
B) Enable the optimize for ad hoc workloads option.
C) Include a SET TRANSACTION ISOLATION LEVEL SERIALIZABLE statement before you run the query.
D) Add a HASH hint to the query.
E) Include a SET TRANSACTION ISOLATION LEVEL REPEATABLE READ statement before you run the query.
F) Add a LOOP hint to the query.
G) Add a FORCESCAN hint to the Attach query.
H) Add a FORCESEEK hint to the query.
I) Add an INCLUDE clause to the index.
J) Cover the unique clustered index with a columnstore index.
K) Include a SET FORCEPLAN ON statement before you run the query.
L) Add a columnstore index to cover the query.
M) Include a SET STATISTICS PROFILE ON statement before you run the query.
N) Include a SET TRANSACTION ISOLATION LEVEL SNAPSHOT statement before you run the query.

3. You use a contained database named ContosoDb within a domain. You need to create a user who can log on to the ContosoDb database. You also need to ensure that you can port the database to different database servers within the domain without additional user account configurations. Which type of user should you create?

A) Domain user
B) login mapped to a virtual account
C) SQL user without login
D) User mapped to an asymmetric key

4. 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 retrieve the students who scored the highest marks for each subject along with the marks. Which Transact-SQL query should you use?

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

5. You administer a Microsoft SQL Server 2012 instance. The instance contains a database that supports a retail sales application. The application generates hundreds of transactions per second and is online 24 hours per day and 7 days per week. You plan to define a backup strategy for the database. You need to ensure that the following requirements are met:
No more than 5 minutes worth of transactions are lost.
Data can be recovered by using the minimum amount of administrative effort.
What should you do? Choose all that apply.

A) Configure the database to use the FULL recovery model.
B) Configure the database to use the SIMPLE recovery model.
C) Create a LOG backup every 5 minutes.
D) Create a DIFFERENTIAL database backup every 4 hours.
E) Create a DIFFERENTIAL database backup every 24 hours.
F) Create a FULL database backup every 24 hours.

Solutions: