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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 a Microsoft SQL Server 2012 Enterprise Edition server that uses 64 cores. You discover performance issues when large amounts of data are written to tables under heavy system load. You need to limit the number of cores that handle I/O. What should you configure?

A) Lightweight pooling
B) I/O affinity
C) Processor affinity
D) Max worker threads

2. You administer a Microsoft SQL Server 2012 instance named SQL2012 that hosts an OLTP database of 1 terabyte in size. The database is modified by users only from Monday through Friday from 09:00 hours to
17:00 hours. Users modify more than 30 percent of the data in the database during the week. Backups are performed as shown in the following schedule:

The Finance department plans to execute a batch process every Saturday at 09:00 hours. This batch process will take a maximum of 8 hours to complete. The batch process will update three tables that are 10 GB in size. The batch process will update these tables multiple times. When the batch process completes, the Finance department runs a report to find out whether the batch process has completed correctly. You need to ensure that if the Finance department disapproves the batch process, the batch operation can be rolled back in the minimum amount of time. What should you do on Saturday?

A) Create a marked transaction in the transaction log at 08:59 hours. Perform a transaction log backup at
17:01 hours.
B) Perform a differential backup at 08:59 hours.
C) Create a marked transaction in the transaction log at 08:59 hours. Perform a transaction log backup at
08:59 hours.
D) Record the LSN of the transaction log at 08:59 hours. Perform a transaction log backup at 17:01 hours.
E) Record the LSN of the transaction log at 08:59 hours. Perform a transaction log backup at 08:59 hours.
F) Create a database snapshot at 08:59 hours.

3. You use a Microsoft SQL Server 2012 database. You want to create a table to store Microsoft Word documents. You need to ensure that the documents must only be accessible via Transact-SQL queries. Which Transact-SQL statement should you use?

A) CREATE TABLE DocumentStore
(
[Id] INT NOT NULL PRIMARY KEY,
[Document] VARBINARY(MAX) NULL
)
GO
B) CREATE TABLE DocumentStore AS FileTable
C) CREATE TABLE DocumentStore
(
[Id] [uniqueidentifier] ROWGUIDCOL NOT NULL UNIQUE,
[Document] VARBINARY(MAX) FILESTREAM NULL
)
GO
D) CREATE TABLE DocumentStore
(
[Id] hierarchyid,
[Document] NVARCHAR NOT NULL
)
GO

4. You use Microsoft SQL Server 2012 to develop a database application. Your application sends data to an NVARCHAR(MAX) variable named @var. You need to write a Transact-SQL statement that will find out the success of a cast to a decimal (36,9). Which code segment should you use?select

A) BEGIN TRY
SELECT convert(decimal(36,9), @var) AS Value, 'True' AS BadCast
END TRY
BEGIN CATCH
SELECT convert(decimal(36,9), @var) AS Value, 'False' AS BadCast
END CATCH
B) SELECT
IIF(TRY_PARSE(@var AS decimal(36,9)) IS NULL, 'True', 'False')
AS BadCast
C) TRY( SELECT convert(decimal(36,9), @var) SELECT 'True' AS BadCast
)
CATCH(
SELECT 'False' AS BadCast
)
D) SELECT
CASE
WHEN convert(decimal(36,9), @var) IS NULL
THEN 'True'
ELSE 'False'
END
AS BadCast

5. 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 a large amount of memory is consumed by single-use dynamic queries. You need to reduce procedure cache usage from these statements without creating any additional indexes. What should you do?

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

Solutions: