What should you do?

You have five servers that run Microsoft Windows 2012 R2. Each server hosts a Microsoft SQL Server instance. The topology for the environment is shown in the following diagram.

You have an Always On Availability group named AG1.

The details for AG1 are shown in the following table.

Instance1 experiences heavy read-write traffic. The instance hosts a database named OperationsMain that is four terabytes (TB) in size. The database has multiple data files and filegroups. One of the filegroups isread_only and is half of the total database size.

Instance4 and Instance5 are not part of AG1. Instance4 is engaged in heavy read-write I/O.

Instance5 hosts a database named StagedExternal. A nightly BULK INSERT process loads data into an emptytable that has a rowstore clustered index and two nonclustered rowstore indexes.

You must minimize the growth of the StagedExternal database log file during the BULK INSERT operationsand perform point-in-time recovery after the BULK INSERT transaction. Changes made must not interrupt the log backup chain.

You plan to add a new instance named Instance6 to a datacenter that is geographically distant from Site1 andSite2. You must minimize latency between the nodes in AG1.

All databases use the full recovery model. All backups are written to the network location \SQLBackup. A separate process copies backups to an offsite location. You should minimize both the time required to restore the databases and the space required to store backups.

The recovery point objective (RPO) for each instance is shown in the following table.

Full backups of OperationsMain take longer than six hours to complete. All SQL Server backups use the keyword COMPRESSION.

You plan to deploy the following solutions to the environment. The solutions will access a database namedDB1 that is part of AG1.

Reporting system: This solution accesses data in DB1with a login that is mapped to a database user that is a member of the db_datareader role. The user has EXECUTE permissions on the database. Queries make no changes to the data. The queries must be load balanced over variable read-only replicas.

Operations system: This solution accesses data in DB1with a login that is mapped to a database user that is a member of the db_datareader and db_datawriter roles. The user has EXECUTE permissions on the database. Queries from the operations system will perform both DDL and DML operations.

The wait statistics monitoring requirements for the instances are described in the following table.

You need to reduce the amount of time it takes to backup OperationsMain.

What should you do?
A . Modify the backup script to use the keyword SKIP in the FILE_SNAPSHOT statement.
B . Modify the backup script to use the keyword SKIP in the WITH statement
C . Modify the backup script to use the keyword NO_COMPRESSION in the WITH statement.
D . Modify the full database backups script to stripe the backup across multiple backup files.

View Answer

Answer: D

Explanation:

One of the filegroup is read_only should be as it only need to be backup up once. Partial backups are usefulwhenever you want to exclude read-only filegroups. A partial backup resembles a full database backup, but a partial backup does not contain all the filegroups. Instead, for a read-write database, a partial backup containsthe data in the primary filegroup, every read-write filegroup, and, optionally, one or more read-only files. A partial backup of a read-only database contains only the primary filegroup.

From scenario: Instance1 experiences heavy read-write traffic. The instance hosts a database named

OperationsMainthat is four terabytes (TB) in size. The database has multiple data files and filegroups. One of the filegroups is read_only and is half of the total database size.

References: https://docs.microsoft.com/en-us/sql/relational-databases/backup-restore/partial-backups-sqlserver