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Data handling and analysis

Data handling and analysis

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Question 110

A network security consultant conducted a study investigating response times of two different enterprise firewalls under a simulated high-volume Distributed Denial of Service (DDoS) attack. The firewall latency times (in milliseconds, ms) were recorded.

When analyzing the performance data, the consultant wanted to determine if there was a notable difference in latency and stability between Firewall Alpha and Firewall Beta during the high-stress period.

Results table of means and standard deviations for latency (ms)

Firewall AlphaFirewall Beta
Mean42.678.4
SD11.23.5

Raw Test Log

In a subsequent validation run of this simulation with a fresh sequence of 151515 test packets for each firewall, the following raw latency times (ms) were obtained:

  • Firewall Alpha's response times: 35, 52, 28, 41, 60, 30, 45, 38, 55, 48, 25, 43, 50, 32, 57
  • Firewall Beta's response times: 75, 79, 81, 74, 83, 77, 80, 76, 75, 82, 79, 84, 78, 75, 83

Using the descriptive statistics provided in the results table, comment on the performance of Firewall Alpha and Firewall Beta during the attack.

[2]
Markscheme

Data handling and analysis Questions

  1. A Level
  2. /Psychology
  3. /Data handling and analysis

235 exam-style questions on AQA A Level Psychology Data handling and analysis. Each one has a worked solution and a mark scheme showing where the marks go.

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