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70-473 · Question #123

You plan to deploy a highly available Microsoft SQL Server solution in Microsoft Azure to two virtual machines. Each virtual machine contains an OS disk and four data disks. You plan to configure both

The correct answer is C. Always On availability groups. To provide a highly available SQL Server solution across two Azure virtual machines with local disks and a shared public IP, ensuring database availability if a server fails, Always On availability groups are recommended.

Implement business continuity

Question

You plan to deploy a highly available Microsoft SQL Server solution in Microsoft Azure to two virtual machines. Each virtual machine contains an OS disk and four data disks. You plan to configure both virtual machines to share a single public IP address. You need to recommend a highly availability solution to ensure that all the databases are available if a single server fails. What should you recommend including in the solution?

Options

  • Alog shipping
  • BAlways On Failover Cluster Instances
  • CAlways On availability groups
  • Ddatabase mirroring

How the community answered

(32 responses)
  • A
    3% (1)
  • B
    6% (2)
  • C
    81% (26)
  • D
    9% (3)

Why each option

To provide a highly available SQL Server solution across two Azure virtual machines with local disks and a shared public IP, ensuring database availability if a server fails, Always On availability groups are recommended.

Alog shipping

Log shipping is a disaster recovery solution that sends transaction log backups periodically and does not provide automatic failover for high availability.

BAlways On Failover Cluster Instances

Always On Failover Cluster Instances (FCIs) require shared storage, which is not implied by the description of local data disks, and provide instance-level rather than database-level high availability.

CAlways On availability groupsCorrect

Always On availability groups provide high availability for a set of user databases, offering automatic failover and supporting a listener for client connections that can be configured with an Azure Load Balancer for a shared public IP. This ensures database availability across multiple independent SQL Server instances if a single server fails.

Ddatabase mirroring

Database mirroring is a deprecated feature for high availability of a single database, superseded by Always On availability groups, and does not scale well for multiple databases.

Concept tested: SQL Server Always On Availability Groups in Azure

Source: https://learn.microsoft.com/en-us/azure/azure-sql/virtual-machines/windows/availability-group-overview

Topics

#SQL Server high availability#Always On Availability Groups#Azure VMs#public IP

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