Which of the following types does the global routing strategy include? (Multiple choice)

Question

Options

• ALink priority active and backup backup
• BLink bandwidth load sharing
• CLink quality load sharing
• DLink weight load balancing

• A
  100% (21)

Explanation

All four options are correct because global routing strategy encompasses the full spectrum of methods used to control how traffic is distributed or protected across WAN links. Link priority active/backup (A) provides redundancy by designating one link as primary and another as standby, activating the backup only on failure. Link bandwidth load sharing (B) distributes traffic proportionally based on each link's capacity, ensuring higher-bandwidth links carry more load. Link quality load sharing (C) routes traffic dynamically based on real-time metrics like latency, jitter, and packet loss, directing more traffic to healthier links. Link weight load balancing (D) lets administrators manually assign weights to links, giving precise control over traffic distribution ratios.

Since all four options are valid, there are no distractors to eliminate - the key exam trap here is assuming only one or two apply. Global routing strategy is a comprehensive framework, not a single method.

Memory tip: Use the acronym PBQW - Priority, Bandwidth, Quality, Weight. Think of it as four dials an admin can turn to control how traffic flows: which link is preferred, how much it can carry, how well it's performing, and how much weight it's assigned. If you see all four listed as choices, the answer is almost certainly "all of the above."

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