An organization has a number of Local Area Networks (LANs) linked to form a single Wide Area Network (WAN). Which of the following would BEST ensure network continuity?

Question

Options

• AThird-party emergency repair contract
• BPre-built servers and routers
• CPermanent alternative routing
• DFull off-site backup of every server

• A
  10% (3)
• B
  3% (1)
• C
  79% (23)
• D
  7% (2)

Explanation

Permanent alternative routing (C) ensures that if any link in the WAN fails, traffic automatically reroutes through a pre-configured backup path - keeping the network operational without human intervention or recovery time. This is the only option that addresses continuity (staying up during a failure) rather than recovery (getting back up after one).

• A is wrong because a repair contract restores the network after it's already down - there's still downtime while waiting for the repair crew.
• B is wrong because pre-built spares still require manual swap-in and configuration, meaning the network is down during that window.
• D is wrong because server backups protect data, not network connectivity - restoring a server doesn't fix a severed WAN link.

Memory tip: Think of "continuity" as "never stopping." Only redundant routing is always-on - repairs, spares, and backups all assume you're already down.

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