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Design a disk subsystem for a database server with throughput requirement of 500 reads and 100 writes per second, and a database size of 50 GB. Estimate the amount of memory required in the same database server. Assume 2,000 simultaneous users, Windows Server 2003 Enterprise Edi tion operating system, and SQL Server 2005 Enterprise Edition. For the same database server, predict the number of a certain CPU needed to process the database workload. Assume that for one CPU, you have calculated a utilization of 200 percent.

BACKUP DATABASE Mydatabase to DISK='C:\SQLserver2005\Backups\Mydatabase.bak'

The practice tests on this book s companion CD offer many options. For example, you can test yourself on just one exam objective, or you can test yourself on all the 70-443 certification exam content. You can set up the test so that it closely simulates the expe rience of taking a certification exam, or you can set it up in study mode so that you can look at the correct answers and explanations after you answer each question.

The execution order shown in Table 7-1 holds true for all queries except those that contain the UNION clause. These queries will use the theoretical execution order shown in Table 7-2.

For details about all the practice test options available, see the How to Use the Practice Tests sec tion in this book s Introduction.

Table 7-2

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You then select the Schedule tab and define the schedule. For any schedule that you specify, the SQL Server Agent service carries out the job as scheduled. You can, however, right-click any job and choose Start Job to start the job immediately.

When deploying Microsoft SQL Server 2005 in a production environment, you might need to determine whether to install more than one instance on a single machine. This design decision can arise as a result either of a new deployment or of a consoli dation of existing servers. This chapter describes some of the reasons to install multi ple instances, the reasons to consolidate them, and the guidelines for doing both.

Results Join execution and first query filter (the ON clause). Second query filter; does not support aggregate functions.

Exam objectives in this chapter:

GROUP BY and aggregate functions (such as Grouping and aggregation calculations. SUM, AVG etc.) that are included in the query HAVING TOP Third query filter; only supports filtering on the results of aggregate functions. Fourth (and last) query filter; causes the query to return only the first X rows from the previous clause. (Note that, in this case, the TOP clause is executed before the ORDER BY clause.)

Decide how many databases to create. Decide on the placement of system databases for each instance. Decide on the physical storage for the tempdb database for each instance. Decide on the number of instances. Decide on the naming of instances. Decide how many physical servers are needed for instances. Establish service requirements. Specify instance configurations. Gather information to analyze the dispersed environment. Identify potential consolidation problems. Create a specification to consolidate SQL Server databases. Design a database migration plan for the consolidated environment. Test existing applications against the consolidated environment.

A software package has a smaller surface area if there are fewer ways to attack it. You reduce the surface area by, for example, closing ports that do not need to be open, closing APIs that don t need to be running, and disabling protocols and services that are not required. SQL Server 2005 enables you to explicitly manage its surface area with the SQL Server Surface Area Configuration tool. The SQL Server Surface Area Configuration tool presents you with a brief explanation of the surface area concept and provides hyperlinks that let you start the individual surface area configuration tools: Surface Area Configuration For Services And Connections, and Surface Area Configuration For Features. Typically, you run the SQL Server Surface Area Configuration tool immediately after installing SQL Server 2005 because the default SQL Server 2005 installation has most features disabled in the interest of increasing security. You should enable only the features you need, and then use the tool at regular intervals to ensure that any features you no longer require are disabled.

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4. 5.

Lessons in this chapter:

Lesson 1: Deploying Multiple Instances. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 69

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