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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:

1. You administer all the deployments of Microsoft SQL Server 2012 in your company. You need to ensure that data changes are sent to a non-SQL Server database server in near real time. You also need to ensure that data on the primary server is unaffected. Which configuration should you use?

A) Two servers configured on the same subnet SQL Server Availability Group configured in Synchronous-Commit Availability Mode
B) SQL Server that includes an application database configured to perform transactional replication
C) Two servers configured in the same data center A primary server configured to perform log-shipping every 10 minutes A backup server configured as a warm standby
D) Two servers configured in different data centers SQL Server Availability Group configured in Asynchronous-Commit Availability Mode
E) SQL Server that includes an application database configured to perform snapshot replication
F) Two servers configured in a Windows Failover Cluster in the same data center SQL Server configured as a clustered instance
G) Two servers configured in different data centers SQL Server Availability Group configured in Synchronous-Commit Availability Mode One server configured as an Active Secondary
H) Two servers configured in the same data center SQL Server Availability Group configured in Asynchronous-Commit Availability Mode One server configured as an Active Secondary

2. You administer a Microsoft SQL Server 2012. A process that normally runs in less than 10 seconds has been running for more than an hour. You examine the application log and discover that the process is using session ID 60. You need to find out whether the process is being blocked. Which Transact-SQL statement should you use?

A) SELECT * FROM sys.dm_exec_requests WHERE session_id = 60
B) EXEC sp_helpdb 60
C) SELECT * FROM sys.dm_exec_sessions WHERE session_id = 60
D) DBCC OPENTRAN

3. Your database contains two tables named DomesticSalesOrders and InternationalSalesOrders. Both tables contain more than 100 million rows. Each table has a Primary Key column named SalesOrderId. The data in the two tables is distinct from one another. Business users want a report that includes aggregate information about the total number of global sales and total sales amounts. You need to ensure that your query executes in the minimum possible time. Which query should you use?

A) SELECT COUNT(*) AS NumberOfSales, SUM(SalesAmount) AS TotalSalesAmount FROM DomesticSalesOrders UNION ALL SELECT COUNT(*) AS NumberOfSales, SUM(SalesAmount) AS TotalSalesAmount FROM InternationalSalesOrders
B) SELECT COUNT(*) AS NumberOfSales, SUM(SalesAmount) AS TotalSalesAmount FROM DomesticSalesOrders UNION SELECT COUNT(*) AS NumberOfSales, SUM(SalesAmount) AS TotalSalesAmount FROM InternationalSalesOrders
C) SELECT COUNT(*) AS NumberOfSales, SUM(SalesAmount) AS TotalSalesAmount
FROM (
SELECT SalesOrderId, SalesAmount
FROM DomesticSalesOrders
UNION ALL
SELECT SalesOrderId, SalesAmount
FROM InternationalSalesOrders
) AS p
D) SELECT COUNT(*) AS NumberOfSales, SUM(SalesAmount) AS TotalSalesAmount
FROM (
SELECT SalesOrderId, SalesAmount
FROM DomesticSalesOrders
UNION
SELECT SalesOrderId, SalesAmount
FROM InternationalSalesOrders
) AS p

4. You administer a Microsoft SQL Server 2012. A process that normally runs in less than 10 seconds has been running for more than an hour. You examine the application log and discover that the process is using session ID 60. You need to find out whether the process is being blocked. Which Transact-SQL statement should you use?

A) SELECT * FROM sys.dm_exec_sessions WHERE sessionid = 60
B) EXEC sp_who 60
C) DBCC INPUTBUFFER (60)
D) EXEC sp_helpdb 60

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

Solutions: