Huawei
H13-831_V2.0 · Question #3825
Which of the following designs can help the system achieve high availability in the event of node failure? (Multiple choice)
The correct answer is A. RDS master-slave deployment, automatic switchover after the master node is damaged C. Elastic scaling automatically replaces a node when it fails D. ELB security check finds a server node failure and no longer passes new requests to it. See the full explanation below for the reasoning.
Business Continuity and Disaster Recovery Architecture
Question
Which of the following designs can help the system achieve high availability in the event of node failure? (Multiple choice)
Options
- ARDS master-slave deployment, automatic switchover after the master node is damaged
- BWhen the system is attacked, arrange for operations and maintenance colleagues to enter a wartime
- CElastic scaling automatically replaces a node when it fails
- DELB security check finds a server node failure and no longer passes new requests to it
How the community answered
(25 responses)- A76% (19)
- B24% (6)
Topics
#RDS failover#elastic scaling#ELB health check#high availability
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