Regarding the description of the characteristics of a high-availability network, which one is correct? (Multiple choice)

Question

Options

• AOnce a failure occurs, the business can only be restored through manual intervention.
• BCan recover quickly after failure
• CThere will be no malfunction
• DAvoid frequent failures

• A
  16% (4)
• B
  76% (19)
• C
  8% (2)

Explanation

High-availability (HA) networks are engineered to minimize downtime impact - not eliminate failures entirely. Option B is correct because rapid recovery (via automated failover, redundancy, and self-healing mechanisms) is the defining characteristic of HA systems. Option D is correct because HA design actively reduces failure frequency through redundant components, load balancing, and proactive fault tolerance.

Why the distractors fail:

• A is the opposite of HA - manual intervention is slow and defeats the purpose; HA relies on automated recovery.
• C is an impossible guarantee; no real-world system has zero failures. HA is about resilience, not perfection.

Memory tip: Think of HA as an ambulance, not a shield - it can't prevent all accidents (not C), but it responds fast (B) and reduces how often accidents happen through safe road design (D). Manual intervention (A) would be like calling a taxi instead.

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