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Question 70/100
You have five servers that run Microsoft SQL Server, Each server hosts multiple databases. You plan to implement fault tolerance.
You need lo implement a fault tolerance solution that meets the following requirements:
* Each database must use a separate fault tolerance configuration.
* The solution must support three or more copies of each database.
* Failover of database must be automatic.
What should you do use?
You need lo implement a fault tolerance solution that meets the following requirements:
* Each database must use a separate fault tolerance configuration.
* The solution must support three or more copies of each database.
* Failover of database must be automatic.
What should you do use?
Correct Answer: A
Explanation
An availability group supports a replicated environment for a discrete set of user databases, known as availability databases. You can create an availability group for high availability (HA) or for read-scale. An HA availability group is a group of databases that fail over together.
Each set of availability database is hosted by an availability replica. Two types of availability replicas exist: a single primary replica. which hosts the primary databases, and one to eight secondary replicas, each of which hosts a set of secondary databases and serves as a potential failover targets for the availability group.
References:
https://docs.microsoft.com/en-us/sql/database-engine/availability-groups/windows/overview-of-always-on-availa
An availability group supports a replicated environment for a discrete set of user databases, known as availability databases. You can create an availability group for high availability (HA) or for read-scale. An HA availability group is a group of databases that fail over together.
Each set of availability database is hosted by an availability replica. Two types of availability replicas exist: a single primary replica. which hosts the primary databases, and one to eight secondary replicas, each of which hosts a set of secondary databases and serves as a potential failover targets for the availability group.
References:
https://docs.microsoft.com/en-us/sql/database-engine/availability-groups/windows/overview-of-always-on-availa
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