- A
Configure DHCP snooping on switches
Why wrong: DHCP snooping helps prevent rogue DHCP servers, not directly ARP spoofing.
- B
Use IPsec transport mode between hosts
Why wrong: IPsec encrypts traffic but does not prevent ARP spoofing at Layer 2.
- C
Implement Port Security with MAC address binding
Port Security limits MAC addresses per port, making it harder for an attacker to spoof multiple IPs.
- D
Deploy a network-based IDS monitoring ARP traffic
Why wrong: An IDS can detect ARP spoofing but is not a preventive control; it is detective.
- E
Enable Dynamic ARP Inspection (DAI) on switches
DAI intercepts and validates ARP packets, preventing spoofed ARP replies.
Question 863 of 1,000
SSCP Network and Communications Security Practice Question
This SSCP practice question tests your understanding of network and communications security. 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 security analyst is investigating a potential ARP spoofing attack on a local network segment. Which TWO network security controls would be most effective in preventing or detecting such an attack at Layer 2?
Answer choices
Why each option matters
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Implement Port Security with MAC address binding
Dynamic ARP Inspection (DAI) validates ARP packets on trusted ports and drops invalid ones. Port Security with MAC address binding limits the number of MAC addresses per port, reducing the effectiveness of ARP spoofing.
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.
- ✗
Configure DHCP snooping on switches
Why it's wrong here
DHCP snooping helps prevent rogue DHCP servers, not directly ARP spoofing.
- ✗
Use IPsec transport mode between hosts
- ✓
Implement Port Security with MAC address binding
Why this is correct
Port Security limits MAC addresses per port, making it harder for an attacker to spoof multiple IPs.
Related concept
Read the scenario before looking for a memorised answer.
- ✗
Deploy a network-based IDS monitoring ARP traffic
- ✓
Enable Dynamic ARP Inspection (DAI) on switches
Common exam traps
Common exam trap: answer the scenario, not the keyword
Many certification questions include familiar terms but test a specific constraint. Read the exact wording before choosing an answer that is generally true but wrong for this case.
Detailed technical explanation
How to think about this question
This question should be treated as a scenario, not a definition check. Identify the problem, the constraint and the best action. Then compare each option against those facts.
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.
- Use explanations to understand the rule behind the answer.
TExam Day Tips
- Underline the problem statement mentally.
- 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 security analyst at a medium-sized enterprise encounters this scenario during an investigation or architecture review. The correct answer reflects best practice for the specific threat or control described. Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option. Security exam questions test whether you can match controls to threats in context — not just recall definitions.
Quick reference
Access Control Model Comparison
| Model | Acronym | Who Controls Access? | Best For |
|---|---|---|---|
| Discretionary Access Control | DAC | Resource owner | Small teams, file shares |
| Mandatory Access Control | MAC | System / security labels | Classified govt / military |
| Role-Based Access Control | RBAC | Administrator (via roles) | Enterprise environments |
| Attribute-Based Access Control | ABAC | Policy engine (user + resource attributes) | Fine-grained, dynamic policies |
| Rule-Based Access Control | RuBAC | System rules / ACLs | Firewall rules, network ACLs |
What to study next
Got this wrong? Here's your next step.
Identify which SSCP exam domain this question belongs to, then review the specific concept being tested. Practise related questions in that domain and focus on understanding why each wrong answer is tempting — not just why the correct answer is right.
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FAQ
Questions learners often ask
What does this SSCP question test?
Network and Communications Security — This question tests Network and Communications Security — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: Implement Port Security with MAC address binding — Dynamic ARP Inspection (DAI) validates ARP packets on trusted ports and drops invalid ones. Port Security with MAC address binding limits the number of MAC addresses per port, reducing the effectiveness of ARP spoofing.
What should I do if I get this SSCP question wrong?
Identify which SSCP exam domain this question belongs to, then review the specific concept being tested. Practise related questions in that domain and focus on understanding why each wrong answer is tempting — not just why the correct answer is right.
What is the key concept behind this question?
Read the scenario before looking for a memorised answer.
About these practice questions
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Last reviewed: Jul 4, 2026
This SSCP practice question is part of Courseiva's free ISC2 certification practice question bank. Courseiva provides original exam-style practice questions with explanations, topic-based practice, mock exams, readiness tracking, and study analytics to help learners prepare for the SSCP exam.
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