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最新的 MCSA 070-457 免費考試真題:

1. You administer a Microsoft SQL Server database named Sales. The database is 3 terabytes in size. The Sales database is configured as shown in the following table.

You discover that all files except Sales_2.ndf are corrupt. You need to recover the corrupted data in the minimum amount of time. What should you do?

A) Perform a transaction log restore.
B) Perform a restore from a full backup.
C) Perform a filegroup restore.
D) Perform a file restore.

2. You administer all the deployments of Microsoft SQL Server 2012 in your company. You need to ensure that an OLTP database that uses a storage area network (SAN) remains available if any of the servers fail. You also need to minimize the amount of storage used by the database. Which configuration should you use?

A) * Two servers configured in different data centers * SQL Server Availability Group configured in Synchronous-Commit Availability Mode * One server configured as an Active Secondary
B) * Two servers configured in the same data center * A primary server configured to perform log-shipping every 10 minutes * A backup server configured as a warm standby
C) * Two servers configured in the same data center * SQL Server Availability Group configured in Asynchronous-Commit Availability Mode * One server configured as an Active Secondary
D) * Two servers configured in a Windows Failover Cluster in the same data center * SQL Server configured as a clustered instance
E) * SQL Server that includes an application database configured to perform transactional replication
F) * SQL Server that includes an application database configured to perform snapshot replication
G) * Two servers configured on the same subnet * SQL Server Availability Group configured in Synchronous-Commit Availability Mode
H) * Two servers configured in different data centers * SQL Server Availability Group configured in Asynchronous-Commit Availability Mode

3. You administer a single server that contains a Microsoft SQL Server 2012 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 enable Contained Databases.
B) Use the SQL Server default instance and configure an affinity mask.
C) Install a new default SQL Server instance on the server.
D) Install a new named SQL Server instance on the server.

4. You administer a Microsoft SQL Server 2012 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?

A) Processor affinity
B) I/O affinity
C) Max worker threads
D) Lightweight pooling

5. You administer a Microsoft SQL Server 2012 server that hosts a transactional database and a reporting database. The transactional database is updated through a web application and is operational throughout the day. The reporting database is only updated from the transactional database. The recovery model and backup schedule are configured as shown in the following table: At 14:00 hours, you discover that pages 71, 520, and 713 on one of the database files are corrupted on the reporting database. You need to ensure that the databases are restored. You also need to ensure that data loss is minimal. What should you do?

A) Perform a point-in-time restore.
B) Perform a partial restore.
C) Restore the latest full backup. Then, restore each differential backup taken before the time of failure from the most recent full backup.
D) Restore the latest full backup, and restore the latest differential backup. Then, restore the latest log backup.
E) Restore the latest full backup. Then, restore the latest differential backup.
F) Restore the latest full backup.
G) Perform a page restore.
H) Restore the latest full backup, and restore the latest differential backup. Then, restore each log backup taken before the time of failure from the most recent differential backup.

問題與答案：