ISC2 Certified in Cybersecurity (CC)Business Continuity (BC), Disaster Recovery (DR) & Incident Response (IR) ConceptsHard
A company requires its critical manufacturing control systems to be operational 24/7 without any planned or unplanned downtime. To achieve this, they plan to implement redundant systems and automatic failover mechanisms. This approach is aimed at achieving:
- ABusiness Continuity Planning
- BHigh Availability (HA)
- CDisaster Recovery
- DData Replication
Show answer & explanationAnswer & explanation
Correct answer: B. High Availability (HA)
High Availability (HA) refers to systems that are designed to operate continuously without interruption, often utilizing redundant components and automatic failover to minimize downtime. The goal of 24/7 operation without downtime directly aligns with the concept of High Availability.
Why the other options are wrong
- A. Business Continuity Planning is a broader strategy that includes HA, but HA is the specific technical objective described.
- C. Disaster recovery focuses on restoring operations after a major disaster, which implies some downtime, whereas HA aims for continuous operation.
- D. Data replication is a technique used to support HA, but it's not the overarching goal itself.
High Availability (HA)
The ability of a system or component to operate continuously without failure for a long period, often achieved through redundancy, load balancing, and failover mechanisms.
- Aims to minimize or eliminate downtime.
- Often measured in 'nines' (e.g., 99.999% availability).
- Requires significant investment in redundant infrastructure.
Memory trick: HA: 'Highly Available' means always ON, no matter what.