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Vendor: Microsoft
Exam Code: 70-469
Exam Name: Recertification for MCSE: Data Platform

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QUESTION 151
Drag and Drop Questions
You are planning to deploy a database to Windows Azure SQL Database.
You need to design a stored procedure to update rows.
The stored procedure must meet the following requirements:
- If the update fails, an error must be raised to the application and the update must be discarded.
- The stored procedure must be designed to maximize concurrency.
What should you include in your design? To answer, move the appropriate actions from the list of actions to the answer area and arrange them in the correct order.
 
Answer:

QUESTION 152
Drag and Drop Questions
You plan to deploy SQL Server 2012.
You are designing two stored procedures named USP_1 and USP_2 that have the following requirements:
- Prevent data read by USP_1 from being modified by other active processes.
- Prevent USP_2 from performing dirty reads.
You need to recommend the isolation level for each stored procedure. The solution must maximize concurrency.
Which isolation levels should you recommend? To answer, drag the appropriate isolation level to the correct stored procedure in the answer area.
 
Answer:
 

QUESTION 153
Drag and Drop Questions
You use SQL Server 2014.
You need to create a single object that inserts a provided value into Table1, and then returns a count of the records in Table1.
Develop the solution by selecting and arranging the required code blocks in the correct order. You may not need all of the code blocks.
 
Answer:

QUESTION 154
You are building a stored procedure for a Windows Azure SQL Database.
The procedure will add multiple rows to a table.
You need to design the stored procedure to meet the following requirements:
- If any of the new rows violates a table constraint, then no further additions must be attempted and all changes made by the stored procedure must be discarded.
- If any errors occur, a row must be added to an audit table, and the original error must be returned to the caller of the stored procedure.
What should you include in the design?

A.    An explicit transaction that has XACT_ABORT disabled
B.    An implicit transaction that has error handling enabled
C.    An explicit transaction that has error handling enabled
D.    An implicit transaction that has XACT.ABORT enabled

Answer: C
Explanation:
http://technet.microsoft.com/en-us/library/ms175127(v=SQL.105).aspx

QUESTION 155
Drag and Drop Questions
You are the senior database administrator at Contoso, Ltd.
You manage a SQL Server 2014 Instance, with multiple databases used for reporting.
You have recently hired a junior database administrator.
You want this person to be able to view the database structures on the server, but you do not want him or her to be able to make changes or see the data in the tables.
The new hire's login credentials are as follows:
Login name: JFree
Password: Jx672$qse
You want the new hire to be required to change his password on his next login.
The code that is produced should execute no matter the initial database context in which it is started.
You need to write the code required to give the new hire only the desired access, using the smallest number of steps. Develop the solution by selecting and arranging the required code blocks in the correct order. You may not need all of the code blocks.
 
Answer:
 

QUESTION 156
You are creating a database that will store usernames and credit card numbers for an application.
You need to recommend a solution to store and reuse the credit card numbers in the database.
What should you recommend? More than one answer choice may achieve the goal. Select the BEST answer.

A.    Data encryption
B.    Transparent Data Encryption (TDE)
C.    Encrypting File System (EPS)
D.    Data hashing

Answer: B
Explanation:
If we are going to encrypt credit card number for storage, then we should have Data Encryption Key (DEK) for encrypting the credit card number.
http://msdn.microsoft.com/en-us/library/bb934049.aspx

QUESTION 157
You have a query that is used by a reporting dashboard.
Users report that the query sometimes takes a long time to run.
You need to recommend a solution to identify what is causing the issue.
What should you recommend? More than one answer choice may achieve the goal. Select the BEST answer.

A.    Set the blocked process threshold, and then run SQL Server Profiler.
B.    Set the blocked process threshold, and then create an alert.
C.    Enable trace flag 1204, and then create an alert.
D.    Create a job that queries the sys.dm_os_waiting_tasks dynamic management view.

Answer: B
Explanation:
Step 1: Turn on the blocked process report. This will look for any blocking taking 20 seconds or longer.
--Make sure you don't have any pending changes
SELECT *
FROM sys.configurations
WHERE value <> value_in_use;
GO
exec sp_configure 'show advanced options', 1;
GO
RECONFIGURE
GO
exec sp_configure 'blocked process threshold (s)', 20; GO
RECONFIGURE
GO
Step 2: Set up a trace to capture the blocked process report.
Run it as a server side trace. blocked process threshold Server Configuration Option

QUESTION 158
You are troubleshooting an application that runs a query.
The application frequently causes deadlocks.
You need to identify the isolation level used by the query when a deadlock occurs.
What should you do? More than one answer choice may achieve the goal. Select the BEST answer.

A.    Query the sys.dm_exec_requests dynamic management view.
B.    Create a trace in SQL Server Profiler that contains the Deadlock graph event.
C.    Query the sys.dm_exec_sessions dynamic management view.
D.    Enable trace flag 1222, and then view the SQL Server error log.

Answer: C
Explanation:
* sys.dm_exec_sessions
Returns one row per authenticated session on SQL Server. sys.dm_exec_sessions is a server-scope view that shows information about all active user connections and internal tasks.
Include the column:
transaction_isolation_level
smallint
Transaction isolation level of the session.
0 = Unspecified
1 = ReadUncomitted
2 = ReadCommitted
3 = Repeatable
4 = Serializable
5 = Snapshot
Is not nullable.
sys.dm_exec_sessions (Transact-SQL)

QUESTION 159
You have four databases that are accessed by using an Online Transaction Processing (OLTP) application. The databases are stored on a server named SQL1 that has SQL Server 2014 installed.
You plan to deploy an additional server that has SQL Server 2014 installed.
You need to design a high-availability solution for the databases that meets the following requirements:
- If SQL1 fails, the databases must be available.
- Users must be able to run reports against a secondary copy of the databases.
What should you include in the design? More than one answer choice may achieve the goal. Select the BEST answer.

A.    AlwaysOn availability groups
B.    Database mirroring
C.    Log shipping
D.    Failover Clustering

Answer: A
Explanation:
The AlwaysOn Availability Groups feature is a high-availability and disaster- recovery solution that provides an enterprise-level alternative to database mirroring. Introduced in SQL Server 2012, AlwaysOn Availability Groups maximizes the availability of a set of user databases for an enterprise. An availability group supports a failover environment for a discrete set of user databases, known as availability databases, that fail over together.
Failover and Failover Modes (AlwaysOn Availability Groups)

QUESTION 160
You administer a SQL Server 2014 instance.
Users report that the SQL Server has seemed slow today.
A large database was being restored for much of the day, which could be causing issues.
You want to write a query of the system views that will report the following:
- Number of users that have a connection to the server
- Whether a user's connection is active
- Whether any connections are blocked
- What queries are being executed
Whether the database restore is still executing and, if it is, what percentage of the restore is complete.
Which system objects should you use in your query to best achieve this task?

A.    sys.dm_exec_requests, sys.dm_exec_sessions, sys.objects
B.    sys.dm_exec_sessions, sys.dm_exec_query_stats, sys.dm_exec_query_text,sys.objects
C.    sys.sysprocesses, sys.dm_exec_query_text, sys.objects
D.    sys.dm_exec_requests, sys.dm_exec_sessions, sys.dm_exec_query_text

Answer: D
Explanation:
* sys.dm_exec_requests
Returns information about each request that is executing within SQL Server.
* sys.dm_exec_sessions
Returns one row per authenticated session on SQL Server. sys.dm_exec_sessions is a server-scope view that shows information about all active user connections and internal tasks. This information includes client version, client program name, client login time, login user, current session setting, and more.
* sys.dm_exec_query_text
Returns the text of the SQL batch that is identified by the specified sql_handle.
sys.dm_exec_requests (Transact-SQL)
sys.dm_exec_sessions (Transact-SQL)
Incorrect:
* sys.dm_exec_query_stats
Returns aggregate performance statistics for cached query plans in SQL Server. The view contains one row per query statement within the cached plan, and the lifetime of the rows are tied to the plan itself.
* sys.objects
Contains a row for each user-defined, schema-scoped object that is created within a database.

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