H13-922 무료 덤프문제 온라인 액세스

For standby clusters, no services can be provided during recovery, and read-only services can be provided during non-recovery periods

• A.False
• B.True

The basic unit of the execution engine is the execution operator.

• A.FALSE
• B.TRUE

SQL tuning does not pay attention to the use of resources, as long as it can achieve the best performance.

• A.False
• B.True

Which of the following are important statistics for the execution of the statement

• A.MCV value (Most common value)
• B.ISTINCT value
• C.NULL record ratio
• D.HB value
• E.Field width
• F.Number of tuples in the table

The description of CN automatic rejection function limitation is correct

• A.In a multi-CN scenario, when multiple CNs fail, all CNs will be automatically removed
• B.Configure load balancing. After a CN fault, the faulty CN is automatically removed and the service will automatically switch to another CN.
• C.Automatic CN removal can occur when there are 2 CNs deployed in the cluster
• D.After theCN fault is removed, the CN will be in the Deleted state and the cluster will be in the Degraded state. User services can continue to be performed without being affected. The physical cluster expansion, reduction, upgrade, CN addition, and changeIP operations will not be affected.