Refer to the exhibit. This graph represents the number of requests waiting for a response across various tiers. With load being generated at a constantly increasing rate, which tier is the bottleneck

Question

Exhibit

Options

• AThe Web tier is the bottleneck because it has the most open requests waiting for a response.
• BThe DB tier is the bottleneck because it is the lowest tier that is clearly not handling requests in
• CThe App tier is the bottleneck because it is the first tier not handling the same number of requests
• DThe Web tier is the bottleneck because at an Offered Load of 300, there are still 50 requests
• EThe App tier is the bottleneck because the DB tier is handling everything the App tier sends it.

• A
  13% (5)
• B
  5% (2)
• C
  3% (1)
• D
  76% (29)
• E
  3% (1)

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