How should inter-zone traffic be evaluated in a risk assessment?

How should inter-zone traffic be evaluated in a risk assessment?

• A. Ignore inter-zone traffic
• B. Analyze inter-zone traffic to identify potential cross-zone attack paths and bottlenecks; adjust controls accordingly
• C. Only monitor intra-zone traffic
• D. Rely on default firewall rules with no testing

Answer: (B)

Analyzing inter-zone traffic is essential because it shows how data and commands move across security boundaries and where attackers could travel from a lower-trust area into more sensitive systems. By examining these flows, you identify potential cross-zone attack paths and bottlenecks, then tune controls—such as firewall rules, segmentation, and monitoring—to block or constrain risky cross-zone access. Ignoring inter-zone traffic or relying on default rules leaves gaps that attackers can exploit, and focusing only on intra-zone traffic misses critical risks at the boundaries.

Analyzing inter-zone traffic is essential because it shows how data and commands move across security boundaries and where attackers could travel from a lower-trust area into more sensitive systems. By examining these flows, you identify potential cross-zone attack paths and bottlenecks, then tune controls—such as firewall rules, segmentation, and monitoring—to block or constrain risky cross-zone access. Ignoring inter-zone traffic or relying on default rules leaves gaps that attackers can exploit, and focusing only on intra-zone traffic misses critical risks at the boundaries.