Huawei H13-922 Exam Practice Test Instant Access

Question 1

(Multiple choices) Which two phases are involved in a two-phase transaction commit?

ATransaction verification phase

BTransaction pre-commit phase

CTransaction rollback phase

DGlobal commit phase

Answer : B, D

Question 2

What is wrong about the logical cluster description?

AGaussDB 200 only supports the physical expansion mode, and the human physical cluster is directly expanded to the logical cluster.

BGaussDB 200 supports physical expansion mode, supports elastic cluster expansion to logical cluster

CWhen the amount of data storage required by the business decreases, in order to avoid wasting resources, the logical cluster or elastic cluster can be scaled down

DWhen the nodes of the logical cluster change or the logical cluster capacity is not redistributed, you need to manually perform data redistribution on the logical cluster.

Answer : A

Question 3

Which of the following are the basic functions of dual cluster disaster recovery?

AMaster and standby cluster roles swap

BDisplay the current cluster role

CShow master cluster synchronization progress

DCancel the standby cluster relationship

Answer : A, B, C, D

Question 4

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

ATrue

BFalse

Answer : A

Question 5

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

ATrue

BFalse

Answer : A

Question 6

Which of the following operators are high memory elimination operators?

AHashJoin operator

BSort operator

CAggregate operator

DStreamtha operator

Answer : A, B, C

Question 7

What problems might be caused by modifying the contents of the pg_hba.comf configuration file

ACause the database process to restart

BThe client is not connected or the CN or DN is abnormal.

CCauses SQL statement execution to be interrupted

DCause database data to be inconsistent

Answer : B

Huawei H13-922 HCIP GaussDB-OLAP V1.0 Exam Practice Test