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43.You administer a single server that contains a Microsoft SQL Server 2014 default instance. You plan to install a new application that requires the deployment of a database on the server. The application login requires sysadmin permissions. You need to ensure that the application login is unable to access other production databases. What should you do? A. Use the SQL Server default instance and configure an affinity mask. B. Install a new named SQL Server instance on the server. C. Use the SQL Server default instance and enable Contained Databases. D. Install a new default SQL Server instance on the server. Answer:B 44.You administer a Microsoft SQL Server 2014 Enterprise Edition server that uses 64 cores. You discover performance issues when large amounts of data are written to tables under heavy system load. You need to limit the number of cores that handle I/O. What should you configure? 45.You administer a Microsoft SQL Server 2014 instance that contains a financial database hosted on a storage area network (SAN). The financial database has the following characteristics: The database is continually modified by users during business hours from Monday through Friday between 09:00 hours and 17:00 hours. Five percent of the existing data is modified each day. The Finance department loads large CSV files into a number of tables each business day at 11:15 hours and 15:15 hours by using the BCP or BULK INSERT commands. Each data load adds 3 GB of data to the database. These data load operations must occur in the minimum amount of time. A full database backup is performed every Sunday at 10:00 hours. Backup operations will be performed every two hours (11:00, 13:00, 15:00, and 17:00) during business hours. You need to ensure that your backup will continue if any invalid checksum is encountered.