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DP-300 Practice Question: Plan and configure a high availability and disaster recovery environment

Exhibit

Refer to the exhibit. The following is a Kusto query from Azure Monitor analyzing failover events:

AzureDiagnostics
| where ResourceProvider == "MICROSOFT.SQL"
| where Category == "DatabaseWaitStatistics"
| where wait_type == "FAILOVER_GROUP_WAIT"
| summarize TotalWait = sum(wait_time_ms) by DatabaseName, bin(TimeGenerated, 1h)
| where TotalWait > 100000
| project DatabaseName, TimeGenerated, TotalWait

You run the above Kusto query and see that a database named 'OrdersDB' has high wait times for 'FAILOVER_GROUP_WAIT' every hour. What does this indicate?

Answer choices

Why each option matters

Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.

Correct answer & explanation

Replication lag between primary and secondary is high

High wait times for 'FAILOVER_GROUP_WAIT' indicate significant replication lag between the primary and secondary databases, as this wait type measures the time the primary spends waiting for the secondary to apply changes. Option A is incorrect because the query does not measure connection requests. Option B is incorrect because write transactions may still occur; the wait is about replication, not transaction absence. Option C is incorrect because frequent automatic failovers are not indicated by this wait stat; it measures replication lag, not failover frequency.

Answer analysis

Option-by-option breakdown

For each option: why learners choose it and why it is or isn't the right answer here.

  • The secondary database is experiencing high connection requests

    Why it's wrong here

    This wait type is for replication, not for connections.

  • The primary database is not receiving any write transactions

    Why it's wrong here

    High wait indicates replication is struggling, not that there are no writes.

  • The failover group is experiencing frequent automatic failovers

    Why it's wrong here

    The wait type is for replication, not for failover itself.

  • Replication lag between primary and secondary is high

    Why this is correct

    FAILOVER_GROUP_WAIT measures time spent waiting for replication to complete.

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JA

Written by Johnson Ajibi, MSc IT Security

Senior Network & Security Engineer · founder of Courseiva

This DP-300 practice question is part of Courseiva's free Microsoft certification practice question bank. Courseiva provides original exam-style practice questions with explanations, topic-based practice, mock exams, readiness tracking, and study analytics to help learners prepare for the DP-300 exam.