The correct action is to configure the firewall to send logs to a separate log collector. This reduces dataplane CPU by offloading logs to an external collector, which shifts the resource-intensive tasks of log processing, indexing, and local storage away from the firewall’s dataplane. By delegating these operations to a dedicated collector, the firewall can conserve CPU cycles for its primary role of packet inspection and forwarding, thereby lowering the dataplane CPU load without compromising security policies or inspection capabilities. On the Palo Alto Networks Certified Network Security Administrator PCNSA exam, this scenario tests your understanding of dataplane resource management versus management-plane functions; a common trap is to mistakenly adjust security profiles or disable logging entirely, which would weaken security posture. Remember the memory tip: “Offload the load to keep the dataplane afloat”—offloading logs preserves both performance and protection.
PCNSA Palo Alto Networks Platforms and Architecture Practice Question
This PCNSA practice question tests your understanding of palo alto networks platforms and architecture. Read the scenario carefully and evaluate each option against the stated constraints before committing to an answer. After answering, compare your reasoning against the explanation and wrong-answer breakdown below. Once you have made your selection, read the full explanation to reinforce the concept and understand why each distractor is designed to mislead on exam day.
A network administrator notices that the firewall's dataplane CPU is consistently above 80% during peak hours. The administrator wants to reduce CPU load without impacting security. Which action should the administrator take?
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Configure the firewall to send logs to a separate log collector
Option B is correct because offloading logs to a separate log collector reduces the firewall's dataplane CPU overhead associated with local log processing and storage. The firewall can then focus on core packet inspection and forwarding tasks, maintaining security posture while alleviating CPU pressure.
Key principle: Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
✗
Disable logging for all security rules
Why it's wrong here
Disabling logging removes visibility and is not recommended.
✓
Configure the firewall to send logs to a separate log collector
Why this is correct
Offloading logs reduces CPU load on the firewall while retaining logs.
Related concept
Read the scenario before looking for a memorised answer.
✗
Upgrade to a higher-end firewall model
Why it's wrong here
Upgrading hardware is costly and may not be necessary if logging is offloaded.
✗
Reduce the number of security policies
Why it's wrong here
Reducing policies may weaken security posture.
Common exam traps
Common exam trap: answer the scenario, not the keyword
The trap here is that candidates may assume disabling logging (Option A) is a quick fix to reduce CPU load, but they overlook that logging is essential for security monitoring and compliance, and that offloading logs (Option B) achieves the same CPU reduction without sacrificing visibility.
Detailed technical explanation
How to think about this question
Palo Alto Networks firewalls use a dedicated dataplane CPU for packet forwarding, security policy matching, and log generation. When logging is enabled, each session generates log entries that are written locally, consuming CPU cycles and I/O resources. Offloading logs to an external collector (e.g., Panorama or a syslog server) via the management plane or dedicated logging interface reduces dataplane overhead, as the firewall can batch and forward logs without local storage processing. In high-throughput environments, this can lower dataplane CPU utilization by 10-20% or more, depending on log volume.
KKey Concepts to Remember
Read the scenario before looking for a memorised answer.
Find the constraint that changes the correct option.
Eliminate answers that are true in general but not in this case.
TExam Day Tips
→Watch for words such as best, first, most likely and least administrative effort.
→Review why wrong options are wrong, not only why the correct option is correct.
Key takeaway
Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Real-world example
How this comes up in practice
A practitioner preparing for the PCNSA exam encounters this exact type of scenario on the job. The correct answer here is not the most general option — it is the best answer for the specific constraint described. Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option. Real exam questions reward reading the full scenario before eliminating options, because the constraint defines which answer fits.
What to study next
Got this wrong? Here's your next step.
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
Palo Alto Networks Platforms and Architecture — This question tests Palo Alto Networks Platforms and Architecture — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: Configure the firewall to send logs to a separate log collector — Option B is correct because offloading logs to a separate log collector reduces the firewall's dataplane CPU overhead associated with local log processing and storage. The firewall can then focus on core packet inspection and forwarding tasks, maintaining security posture while alleviating CPU pressure.
What should I do if I get this PCNSA question wrong?
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
What is the key concept behind this question?
Read the scenario before looking for a memorised answer.
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Question Discussion
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