11: Lesson Review Answers in .NET framework

Generation PDF-417 2d barcode in .NET framework 11: Lesson Review Answers

11: Lesson Review Answers
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Lesson 2
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1. Correct Answers: A, C, and D A. Correct: Each backup places an entry into the SQL Server error log that contains the database name, file name, and first/last LSN for the backup. B. Incorrect: This is a table in SQL Server 2000 that contains the history of all backups on the instance. This table no longer exists in SQL Server 2005. C. Correct: The msdb.dbo.backupset table is used to track each backup that is generated. It used with the msdb.dbo.backupfile table to identify each file that was created during a backup operation. D. Correct: The same backup information that is written to the SQL Server error log is also written to the Application Event Log. 2. Correct Answers: B and C A. Incorrect: The inactive claims are in FG5, so a filegroup backup of the active claims (FG4) does not do any good. B. Correct: The last full backup of the database needs to be restored. C. Correct: After restoring the last full backup, the most recent differential backup should be restored, followed by every subsequent transaction log backup. D. Incorrect: Because the filegroup differential backup is executed against FG4, it cannot be used to recover FG5.
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Lesson 3
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1. Correct Answers: C and D A. Incorrect: A data pump task in SSIS only moves data from one location to another. It does not transfer all other objects in a database nor does it transfer users, schemas, or permissions. B. Incorrect: When a database is detached, it is no longer accessible. Therefore, users would not be able to run reports. C. Correct: You could use backup and restore to move the database, which would leave the original database on Server1 for reporting while enabling you to create a copy of the database on Server2. D. Correct: You can use SMO to extract all the elements of the database on Server1 and re-create them on Server2.
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11: Case Scenario Answers
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11: Case Scenario Answers
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Case Scenario: Designing a Backup Strategy
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1. You need to implement backups of some type immediately, which will mean explaining to management, usually many times, all the ways that a SAN can actually be taken offline or become unavailable. All the rest of the planning and testing can wait for a later time. 2. As an immediate solution, you should implement a strategy of full, differential, and transaction log backups. On a 500-GB+ database, it is unlikely that you will meet the 30-minute downtime threshold, but being able to at least restore the database to either a point in time or up to the point of failure is a major step forward. To meet the five minutes or less of data loss will require transaction log backups. Providing for a margin of error, create transaction log backups that run every two minutes. To minimize the number of transaction log backups that need to be applied, implement differential backups that run every four hours. For now, a full backup every day should be sufficient as long as adequate storage space is available. 3. Thinking longer term, you need to break down the entire database as well as access patterns on the data. Because of the amount of data in the database, restore operations will prove time-consuming, and the situation will only get worse. In many operational systems, data eventually reaches a point at which it is no longer modified. As data continues to age, it is rarely read and then finally reaches a point when it is never again accessed. However, you cannot simply throw it away. You need to determine the aging pattern so that you can implement archival routines that will reduce the volume of data needing to be backed up on a daily basis. You should also change the storage structure within the database through distinct placement of tables on specific filegroups as well as using partitioning. You can switch to filegroup backups that can target a subset of the database and enable your backups to consume less space as well as provide more granular and efficient restores. You need to perform all these tasks within the context of figuring out how to restore all or a portion of the database within business requirements and then designing the backup strategy required to meet those needs.
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