200-201 Network Intrusion Analysis Practice Question
This 200-201 practice question tests your understanding of network intrusion analysis. 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.
Exhibit
Refer to the exhibit.
%ASA-4-106023: Deny tcp src outside:10.10.10.10/54321 dst inside:192.168.1.100/80
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Inbound HTTP connection denied
The firewall log entry shows a packet with source IP 10.0.0.2 (internal) and destination IP 203.0.113.5 (external) on destination port 80 (HTTP). The action is 'DENY' and the direction is 'inbound', meaning the firewall denied an incoming connection attempt from the external host to the internal host. Since the destination port is HTTP, this is an inbound HTTP connection that was denied.
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.
✗
Outbound HTTP connection denied
Why it's wrong here
Source is outside, so it is inbound, not outbound.
✗
Inbound HTTP connection allowed
Why it's wrong here
The message says deny, not allow.
✓
Inbound HTTP connection denied
Why this is correct
Source outside, destination inside port 80, and action is deny.
Related concept
Read the scenario before looking for a memorised answer.
✗
Outbound HTTP connection allowed
Why it's wrong here
Both direction and action are incorrect.
Common exam traps
Common exam trap: answer the scenario, not the keyword
Cisco often tests the distinction between the source/destination IP addresses and the firewall's direction field; candidates mistakenly assume that if the source IP is internal, the traffic must be outbound, but the direction field indicates the flow relative to the firewall's interfaces, not the IP addresses.
Detailed technical explanation
How to think about this question
In firewall logs, the 'direction' field is often defined relative to the firewall's internal interface; 'inbound' means traffic entering from a lower-security zone (e.g., untrusted external network) to a higher-security zone (e.g., internal network). The source IP 10.0.0.2 is internal, but the direction is inbound because the packet is arriving on the external interface destined for the internal network. This is a common scenario where an external host attempts to initiate an HTTP connection to an internal server, and the firewall blocks it due to a default deny rule or lack of an explicit allow rule for inbound HTTP.
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.
Network Intrusion Analysis — This question tests Network Intrusion Analysis — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: Inbound HTTP connection denied — The firewall log entry shows a packet with source IP 10.0.0.2 (internal) and destination IP 203.0.113.5 (external) on destination port 80 (HTTP). The action is 'DENY' and the direction is 'inbound', meaning the firewall denied an incoming connection attempt from the external host to the internal host. Since the destination port is HTTP, this is an inbound HTTP connection that was denied.
What should I do if I get this 200-201 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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