You administer a Microsoft SQL Server 2014 instance named SQL2012 that hosts an OLTP database of 1 terabyte in size.
The database is modified by users only from Monday through Friday from 09:00 hours to 17:00 hours. Users modify more than 30 percent of the data in the database during the week.
Backups are performed as shown in the following schedule:
The Finance department plans to execute a batch process every Saturday at 09:00 hours. This batch process will take a maximum of 8 hours to complete.
The batch process will update three tables that are 10 GB in size. The batch process will update these tables multiple times.
When the batch process completes, the Finance department runs a report to find out whether the batch process has completed correctly.
You need to ensure that if the Finance department disapproves the batch process, the batch operation can be rolled back in the minimum amount of time.
What should you do on Saturday?
A . Perform a differential backup at 08:59 hours.
B . Record the LSN of the transaction log at 08:59 hours. Perform a transaction log backup at17:01 hours.
C . Create a database snapshot at 08:59 hours.
D . Record the LSN of the transaction log at 08:59 hours. Perform a transaction log backup at08:59 hours.
E . Create a marked transaction in the transaction log at 08:59 hours. Perform a transaction log backup at 17:01 hours.
F . Create a marked transaction in the transaction log at 08:59 hours. Perform a transaction log backup at 08:59 hours.
Answer: C
Explanation:
References: https://docs.microsoft.com/en-us/sql/relational-databases/databases/database-snapshots-sql-server