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    PracticeAzure Solutions Architect Expert (AZ-305)Azure Solutions Architect Expert AZ-305 Practice Exam 3Question 18
    Hard1 markMultiple Choice
    Domain 2.1: Relational Data StorageDomain 2Relational DataPostgreSQLDisaster Recovery

    AZ-305 · Question 18 · Domain 2.1: Relational Data Storage

    A global SaaS provider uses Azure Database for PostgreSQL - Flexible Server for their core application.

    The business requires a disaster recovery architecture that meets the following constraints:

    1. The database must be replicated to a secondary Azure region.
    2. In the event of a primary region failure, the application must be able to fail over to the secondary region.
    3. During normal operations, the secondary region database must be accessible for read-only analytical queries to offload reporting workloads.

    Which TWO features should you configure to meet these requirements? (Select TWO)

    Answer options:

    A.

    Zone-redundant High Availability (HA)

    B.

    Read replicas in the secondary region

    C.

    Promote the read replica to a standalone server during a disaster

    D.

    Auto-failover groups

    E.

    Geo-redundant backup (GRS) restore

    How to approach this question

    Identify how PostgreSQL handles cross-region replication (Read Replicas) and how failover is executed (Promotion).

    Full Answer

    Read replicas in the secondary region, Promote the read replica to a standalone server during a disaster
    For Azure Database for PostgreSQL - Flexible Server, cross-region disaster recovery and read scale-out are achieved using Read Replicas. You deploy a read replica in a secondary region, which satisfies the reporting requirement. In the event of a primary region outage, you manually 'promote' the read replica. This severs the replication link and makes the server read-write, completing the failover process.

    Common mistakes

    Selecting Auto-failover groups, which is an Azure SQL feature, not a PostgreSQL feature.
    Question 17All questionsQuestion 19

    Practice the full Azure Solutions Architect Expert AZ-305 Practice Exam 3

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