Microsoft 70-450 exam questions and answers

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1. You are designing a new SQL Server instance that will support a Web application. The Web application is hosted on a Web
farm that contains 32 nodes.
The server has 128 GB of memory and 16 processor cores. The application contains two databases and supports both online
analytical processing (OLAP) and online transaction processing (OLTP) workloads.
When testing the application, you discover that some queries run extremely slow and some queries run very fast.
You need to ensure that the server processes database queries as fast as possible.
What should you do? (More than one answer choice may achieve the goal. Select the BEST answer.)
A. Execute the following command on the server: exec sp_configure ‘maximum degree of parallelism’, 1
B. Execute the following command on the server: exec sp_configure ‘maximum degree of parallelism’,8
C. Use SQL Profiler to identify queries that experience CXPACKET waits. Add (OPTION MAXDOP 1) to each query.
D. Use SQL Profiler to identify queries that experience CXPACKET waits. Add (OPTION MAXDOP 8) to each query.
Answer: C

2. You administer a SQL Server 2008 instance.
You plan to deploy a new database to the instance. The database will be subject to frequent inserts and updates. The database
will have multiple schemas. One of the schemas will contain a large amount of read-only reference data.
You need to design the physical database structure for optimal backup performance.
What should you do?
A. Create the database by using a single data file and a single log file.
B. Create the database by using a single data file and multiple log files.
C. Create the database by using a single log file and multiple filegroups.
D. Create the database by using a single log file and a filegroup that has multiple data files.
Answer: C

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