What are two disadvantages of Standby Reactive HA configuration?

• A. High operational costs and resource wastage
• B. Long turnaround time and dependency on VA readiness
• C. Inflexibility in management and increased complexity
• D. High latency and low redundancy

Answer: (B)

The selection of long turnaround time and dependency on VA readiness as disadvantages of Standby Reactive High Availability (HA) configuration highlights significant challenges associated with this approach.

In a Standby Reactive HA setup, when a primary system fails, the backup system must be brought online, which can take considerable time. This is known as turnaround time. Any delay in the process of detecting the failure, initiating the switch, or bringing the standby system up can affect the continuity of services.

Additionally, this configuration often relies on the readiness of the backup system (often referred to as a Virtual Appliance or VA). If the standby system is not up to date or properly configured, it may not be able to take over effectively, leading to further delays and potential service interruptions. This dependency emphasizes the importance of regular maintenance and update procedures for the standby systems, which adds to the operational complexities.

Other options may describe other aspects of HA configurations but do not capture the specific nuances related to turnaround time and readiness that are particularly relevant to Standby Reactive HA. Thus, the focus on these two disadvantages provides valuable insight into the operational challenges that organizations may face when implementing such a configuration.