Which of the following descriptions of the characteristics of high-availability networks are correct? (Multiple choice)

Question

Options

• AThere will be no malfunction
• BAvoid frequent failures
• COnce a failure occurs, business can only be restored through manual intervention.
• DCan recover quickly after failure

• A
  14% (4)
• B
  79% (22)
• C
  7% (2)

Explanation

High-availability (HA) networks are designed around the realistic assumption that failures will happen - so the goals are to minimize how often they occur (B) and to recover from them rapidly with minimal downtime (D). These two properties together define what "high availability" actually means in practice.

A is wrong because no system can guarantee zero failures - HA networks aim to reduce failure frequency and impact, not eliminate failures entirely. Claiming "no malfunction will ever occur" is an impossible standard.

C is wrong because it directly contradicts a core HA principle: automated failover and self-healing mechanisms are specifically designed so that recovery does not depend on manual intervention. Requiring human intervention would dramatically increase downtime.

Memory tip: Think of HA as the "minimize and automate" rule - minimize failures (B) and automate recovery (D). Anything claiming "zero failures" or "manual-only recovery" is the opposite of high availability.

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