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Group Policy is a framework that administrators use to control the configuration of users and computers in an Active Directory domain. GPOs are processed in the following order: Local, Site, Domain, OU. You can enforce Group Policy password policy settings for SQL Server logins by enabling the Enforce Password Policy or CHECK_POLICY option for a particu lar login.

Query #1 (1 row) Query #2 (selective) 24,237 pages 1,062 pages 28 pages Query #3 (somewhat selective) 24,237 pages 5,029 pages 139 pages Query #4 (non-selective) 24,237 pages 50,125 pages 1,286 pages

You can use the following questions to test your knowledge of the information in Les son 1, Enforcing SQL Server Security Through Group Policy. The questions are also available on the companion CD if you prefer to review them in electronic form.

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.

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

An attack in which a server is flooded with spurious requests, reducing the server s availability. A process by which one computer connects to another computer so that it can connect to a third computer.

4

The performance metric that is shown in the table is the number of data pages that SQL Server touched during the query execution (SET STATISTICS IO ON, logical reads). Note that the so-called selective query (Query #2) returns 0.01 percent of the rows in the table. For a table of this size, that still amounts to 1,000 rows. If you are speaking to someone about the number of rows that will be affected by a query, and he or she says that number is only a couple of percent of the table, this usually translates to a lot of rows. Some conclusions that we can draw from the test are given here. (This is only with regard to read performance; write performance is discussed later in this lesson.)

1 The Finance department within the Fabrikamcom domain hosts a SQL Server computer named CustAcct that contains several confidential databases To tighten security, you want to create a password policy for the Finance depart ment that is stricter than the one used for the rest of the Fabrikamcom domain How can you best achieve this A Create a new site for the Finance department Attach a GPO that defines the new password policy to the Finance site B Create a new OU for the Finance department Attach a GPO that defines the new password policy to the Finance OU C Create a new domain named financefabrikamcom Move the Finance serv ers (including CustAcct) to the new domain Within the Default Domain Policy for the new domain, define the new password policy D.

Use Local Security Policy on each server in the Finance department to define the new, stricter password policy 2 The Finance department has successfully implemented a new, stricter password policy that enforces complexity requirements for Windows logins You want to ensure that SQL Server logins for the CustAcct server are subject to the same password complexity requirements as the rest of the department How can you achieve this (Choose all that apply) A Verify that the CHECK_POLICY option is enabled for all SQL Server logins B Enable the Passwords Must Meet Complexity Requirements policy in the Local Security Policy on CustAcct C Ensure that CustAcct is running Windows Server 2003 or later D Verify that the CHECK_EXPIRATION option is enabled for all new SQL Server logins 3 You work for Contoso, Ltd, a company with 450 employees.

A covered index always performs better than a non-covered index. For queries that return a very limited number of rows, a non-covered index also performs very well. For the somewhat-selective query (Query #3), the covered index reads at least 36 times fewer pages than the non-covered index. In this case, a query was considered selective by the query optimizer when it matched less than roughly 0.77 percent of the table.

A SQL Server object that represents the capability for SQL Server to communicate over the network. Each endpoint supports a specific type of communication. An event class grouping. A mechanism that specifies sets of events by a single value. In a SQL trace, recorded events are instances of the event classes in the trace definition.