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QUESTION 16
Note: This question is part of a series of questions that present the same scenario. Each question in the series contains a unique solution. Determine whether the solution meets stated goals.
You manage a Microsoft SQL Server environment with several databases. You need to ensure that queries use statistical data and do not initialize values for local variables.
Solution: You enable the QUERY_OPTIMIZER_HOTFIXES option for the databases.
Does the solution meet the goal?

A.    Yes
B.    No

Answer: B
Explanation:
QUERY_OPTIMIZER_HOTFIXES = { ON | OFF | PRIMARY } enables or disables query optimization hotfixes regardless of the compatibility level of the database. This is equivalent to Trace Flag 4199.
https://msdn.microsoft.com/en-us/library/mt629158.aspx

QUESTION 17
Note: This questions is part of a series of questions that use the same or similar answer choices. An answer choice may be correct for more than one question in the series. Each question is independent of the other questions in this series. Information and details provided in a question apply only to that question.
You manage on-premises and Microsoft Azure SQL Database instances for a company. Your environment must support the Microsoft SQL Server 2012 ODBS driver. You need to encrypt only specific columns in the database. What should you implement?

A.    transport-level encryption
B.    cell-level encryption
C.    Transparent Data Encryption
D.    Always Encrypted
E.    Encrypting File System
F.    BitLocker
G.    dynamic data masking

Answer: D
Explanation:
To encrypt columns you can configure Always Encrypted. SQL Server Management Studio (SSMS) provides a wizard that helps you easilyconfigure Always Encrypted by setting up the column master key, column encryption key, and encrypted columns for you. Always Encrypted allows client applications to encrypt sensitive data and never reveal the data or the encryption keys to SQL Server or Azure SQL Database. An Always Encrypted enabled driver, such as the ODBC Driver 13.1 for SQL Server, achieves this by transparently encrypting and decrypting sensitive data in the client application.
Note:
The ODBC driver automatically determines which query parameters correspond to sensitive database columns (protected using Always Encrypted), and encrypts the values of those parameters before passing the data to SQL Server or Azure SQL Database. Similarly, the driver transparently decrypts data retrieved from encrypted database columns in query results.
https://docs.microsoft.com/en-us/azure/sql-database/sql-database-always-encrypted-azure-key-vault#encrypt-columns-configure-always-encrypted
https://msdn.microsoft.com/en-us/library/mt637351(v=sql.110).aspx

QUESTION 18
Note: This questions is part of a series of questions that use the same or similar answer choices. An answer choice may be correct for more than one question in the series. Each question is independent of the other questions in this series. Information and details provided in a question apply only to that question.
Your company has several Microsoft Azure SQL Database instances. Data encryption should be allowed to be implemented by the client applications that access the data. Encryption keys should not be made available to the database engine. You need to configure the database. What should you implement?

A.    transport-level encryption
B.    cell-level encryption
C.    Transparent Data Encryption
D.    Always Encrypted
E.    Encrypting FileSystem
F.    BitLocker
G.    dynamic data masking

Answer: A
Explanation:
Using encryption during transit with Azure File Shares Azure File Storage supports HTTPS when using the REST API, but is more commonly used as an SMB file share attached to a VM. HTTPS is a transport-level security protocol.


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