This 350-701 practice question tests your understanding of security concepts. 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.
Which THREE of the following are valid characteristics of a next-generation firewall (NGFW) compared to a traditional stateful firewall? (Choose three.)
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Decryption and inspection of SSL/TLS traffic
A is correct because NGFWs can perform SSL/TLS decryption and inspection, allowing them to examine encrypted traffic for threats. Traditional stateful firewalls only inspect packet headers and state information, leaving encrypted payloads unexamined. This capability is critical for detecting malware or data exfiltration hidden in HTTPS sessions.
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.
✓
Decryption and inspection of SSL/TLS traffic
Why this is correct
NGFWs can decrypt encrypted traffic for inspection.
Related concept
Read the scenario before looking for a memorised answer.
✓
Application identification regardless of port
Why this is correct
NGFWs use deep packet inspection to identify applications.
Related concept
Read the scenario before looking for a memorised answer.
Read the scenario before looking for a memorised answer.
Common exam traps
Common exam trap: answer the scenario, not the keyword
Cisco often tests the misconception that NAT and VPNs are exclusive to NGFWs, when in fact they are common features of both traditional stateful firewalls and NGFWs.
Detailed technical explanation
How to think about this question
NGFWs use deep packet inspection (DPI) to identify applications by analyzing traffic patterns and signatures, even when applications use non-standard ports or attempt to hide via port hopping. For example, an NGFW can detect Facebook traffic on port 443 by examining HTTP Host headers or TLS SNI fields, whereas a stateful firewall would only see HTTPS on port 443. This application awareness enables granular policy enforcement, such as blocking Facebook while allowing other HTTPS traffic.
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 small business has 20 workstations on the 192.168.1.0/24 network and one public IP from its ISP. The router uses PAT (NAT overload) so all 20 devices share one public address using different source ports. NAT questions test whether you understand the four address terms and which direction each translation applies.
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.
Security Concepts — This question tests Security Concepts — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: Decryption and inspection of SSL/TLS traffic — A is correct because NGFWs can perform SSL/TLS decryption and inspection, allowing them to examine encrypted traffic for threats. Traditional stateful firewalls only inspect packet headers and state information, leaving encrypted payloads unexamined. This capability is critical for detecting malware or data exfiltration hidden in HTTPS sessions.
What should I do if I get this 350-701 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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