Which approach for SenderBase Reputation Score filtering would ensure a very small false positive rate and achieve better system performance?

Question

Options

• AGeneric
• BAggressive
• CModerate
• DBasic
• EConservative

• A
  7% (1)
• C
  93% (13)

Explanation

Moderate filtering strikes the optimal balance between accuracy and efficiency in SenderBase Reputation Score (SBRS) filtering on Cisco Email Security Appliances. It applies thresholds aggressive enough to block a meaningful volume of low-reputation senders - improving throughput and reducing processing overhead - while remaining careful enough to keep false positives very low, which is critical in production email environments.

Why the distractors are wrong:

• Conservative (E): Minimizes false positives but lets too much suspicious mail through for further inspection, providing little performance gain.
• Aggressive (B): Maximizes blocking and performance gains but significantly raises the false positive risk, potentially blocking legitimate mail.
• Generic (A) / Basic (D): These are not standard SBRS policy levels in Cisco ESA; they are distractors with no defined behavior in this context.

Memory tip: Think of it as a Goldilocks problem - Conservative is too cautious, Aggressive is too risky, and Moderate is just right for balancing both a low false positive rate and better performance. If the question mentions both goals together, the answer is almost always Moderate.

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