HP0-J67 · Question #45
A company is planning to deploy a database application that requires high availability. In the event of a host failure, the application must sustain only minimal service interruption. Which…
The correct answer is C. clustering. To ensure a database application maintains minimal service interruption during a host failure, clustering is the most effective technology for achieving high availability. Clustering allows multiple servers to work together, providing failover capabilities.
Question
A company is planning to deploy a database application that requires high availability. In the event of a host failure, the application must sustain only minimal service interruption. Which technology should the company use?
Options
- Aremote data replication
- Blocal data replication
- Cclustering
- Dtwo-stage backup
How the community answered
(40 responses)- B3% (1)
- C95% (38)
- D3% (1)
Why each option
To ensure a database application maintains minimal service interruption during a host failure, clustering is the most effective technology for achieving high availability. Clustering allows multiple servers to work together, providing failover capabilities.
Remote data replication is for disaster recovery or data protection across locations, not for immediate application failover during a host failure within a single site.
Local data replication protects data within a site but does not automatically provide application failover to another host upon a host failure.
Clustering involves grouping multiple servers (nodes) together to act as a single system, where if one node fails, another node automatically takes over its workload with minimal downtime. For a database application requiring high availability and minimal service interruption during a host failure, this active-passive or active-active failover mechanism is essential.
Two-stage backup focuses on data restoration and involves significant downtime, which is contrary to the requirement for minimal service interruption.
Concept tested: High availability for applications via clustering
Source: https://learn.microsoft.com/en-us/windows-server/failover-clustering/failover-clustering-overview
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