After multiple availability issues a systems administrator is reviewing the following metrics from the web server farm, which is configured to serve the company's e-commerce site: To reduce the…

Question

Exhibit

Options

• Alog correlation and aggregation system
• Bload balancer algorithm
• Cweb application firewall.
• Dweb server to the farm.

• A
  11% (6)
• B
  81% (46)
• C
  4% (2)
• D
  5% (3)

Explanation

When a web server farm experiences recurring availability issues, the most common underlying cause visible in server-farm metrics is uneven traffic distribution - some servers become saturated while others remain underutilized, causing failures and dropped requests. A new load balancer algorithm (e.g., switching from round-robin to least-connections or resource-based weighted algorithms) redistributes traffic more intelligently based on current server load, directly improving availability without adding hardware. Option D (adding a web server) increases raw capacity but doesn't fix distribution inefficiency and is more expensive. Option A (log aggregation) improves observability but does not mitigate availability risk. Option C (WAF) provides security filtering but is not a remedy for availability problems caused by uneven load distribution. The metrics context implies the issue is how work is being distributed, not how much total capacity exists.

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