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1. Why should you implement a database security policy even before you ana lyze business requirements to modify that policy 2. Which type of network attacks can you thwart by applying the latest updates to Windows and SQL Server

SELECT * FROM Test.TestTran; /* Returns an empty result set (which, in this case, is not a dirty read). This shows the problem with the read uncommitted isolation level. The previous 2 statements returned data that logically never existed! */

1. Your database server should be secure by default. When you analyze busi ness requirements, you determine exceptions to that policy. 2. Viruses and worms.

A security policy is a document or set of documents defining exactly which resources need to be protected, along with guiding principles and high-level courses of action that provide this protection. In general, your database security policy should be secure by default. Specific business requirements can then be gathered and analyzed to define exceptions to this security. You need to take preventive measures to protect your SQL Server from network attacks. Different types of network threats require different types of protection as well as different types of responses. For example, viruses and worms are best pre vented by applying the latest updates to Windows and SQL Server, but SQL injec tion attacks are best prevented by reducing ad hoc queries against the SQL Server databases. Be sure to learn about these differences before deploying SQL Server in a production environment.

-- Drop the table used in this example. DROP TABLE Test.TestTran;

Description Name of the role in the current database Role ID for the role in the current database Member of the role in the current database User ID for the member of the role

You can use the following questions to test your knowledge of the information in Les son 1, Assessing Database Security Needs for Business. The questions are also avail able on the companion CD if you prefer to review them in electronic form.

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Answers to these questions and explanations of why each answer choice is right or wrong are located in the Answers section at the end of the book.

1. Which of the following is most likely to directly affect a business s security policy A. Legislation requiring user data to be encrypted B. The presence of an Internet Information Services (IIS) server in the network C. The presence of Active Directory in the network D. Propensity for flooding in the geographical area 2. Your security policy states that the Marketing Admins group should not be granted administrative privileges to the Marketing database. However, you want members of the Marketing Admins group to be able to control which employees in the Marketing department can have read access to the Marketing database. Currently, the access-marketing-database database role has read access to the Marketing database. How can you achieve the goal and conform to the security

The second query will produce the correct result, as follows:

The information that sp_helpuser returns is subject to restrictions on access to metadata. Entities on which the principal has no permission do not appear. The following example lists all users in the current database:

3

USE AdventureWorks; WITH a AS ( SELECT TOP(2) ProductID, Name, Color, ListPrice FROM Production.Product

policy (Choose two. Each answer presents part of the solution.) A. Enable the Marketing Admins group to control membership of the accessmarketing-database database role. B. Create a Windows group named MarketingDatabaseAccess and add the group to the access-marketing-database database role. C. Give the Marketing Admins group membership control of the MarketingDatabaseAccess group. D. Give the Marketing Admins group privileges to modify the access-market ing-database database role. 3. Which of the following is the best way to mitigate the risk of SQL injection attacks for database queries occurring through a Web application A. Ensure that queries are encrypted via Secure Sockets Layer (SSL). B. Ensure that the latest updates are applied to SQL Server 2005. C. Ensure that the Web application accesses database data only through stored procedures. D. Ensure that the SQL Server hosting the data is a member of an Active Direc tory domain.