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Microsoft 70-457 Exam Syllabus Topics:

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

Question 1

You are developing a database application by using Microsoft SQL Server 2012. An application that uses a database begins to run slowly. You discover that during reads, the transaction experiences blocking from concurrent updates. You need to ensure that throughout the transaction the data maintains the original version. What should you do?

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

Question 2

You administer a Microsoft SQL Server 2012 database. All database traffic to the SQL Server must be encrypted by using secure socket layer (SSL) certificates or the connection must be refused. Network
administrators have deployed server certificates to the Windows store of all Windows servers on the
network from a trusted Certificate Authority. This is the only Certificate Authority allowed to distribute
certificates on the network.
You enable the Force Encryption flag for the MSSQLServer protocols, but client computers are unable to
connect. They receive the following error message:
"A connection was successfully established with the server, but then an error occurred during the pre-login
handshake, (provider: SSL Provider, error: 0 - The certificate chain was issued by an authority that is not
trusted.) (Microsoft SQL Server)"
You notice the following entry in the SQL Server log:
"A self-generated certificate was successfully loaded for encryption."
You need to configure SQL Server to encrypt all client traffic across the network. You also need to ensure
that client computers are able to connect to the server by using a trusted certificate. Which three 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:

Question 3

You create the following stored procedure. (Line numbers are included for reference only.)

You need to ensure that the stored procedure performs the following tasks: If a record exists, update the record. If no record exists, insert a new record.
Which four Transact-SQL statements should you insert at line 07? (To answer, move the appropriate statements from the list of statements to the answer area and arrange them in the correct order.)
Build List and Reorder:

Question 4

You administer a Microsoft SQL Server 2012 database named Contoso on a server named Server01. You need to prevent users from disabling server audits in Server01. What should you create?

A. an Alert
B. a Database Audit Specification
C. a Resource Pool
D. a SQL Profiler Trace
E. a Server Audit Specification
F. an Extended Event session
G. a Policy

Question 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 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, NTILE(2) 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 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 SubjectCode ORDER BY Marks ASC) AS Rank
FROM StudentMarks) tmp
WHERE Rank = 1
E. SELECT StudentCode as Code, DENSE_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, RANK() 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: