- A
Connect the web server directly to the ISP modem, bypassing the firewall
Why wrong: Bypassing the firewall removes protection for the server and the internal network.
- B
Place the web server in the DMZ of the firewall and allow all inbound traffic to the server's IP
Why wrong: DMZ exposes the server to more traffic and potential attacks; port forwarding is more secure.
- C
Assign a public IP address to the web server and connect it to the same switch as the other computers
Why wrong: This exposes the server directly and unnecessarily uses additional public IPs.
- D
Configure port forwarding on the router to direct HTTP (port 80) and HTTPS (port 443) traffic to the web server's internal IP address
This allows external access only to the specified ports while protecting the internal network.
Quick Answer
The correct configuration is to set up port forwarding on the router to direct HTTP (port 80) and HTTPS (port 443) traffic to the web server’s internal IP address. This works because port forwarding acts as a controlled gateway: the firewall/router accepts incoming requests on its single public IP for only those specific ports, then forwards them to the private IP of the web server inside the network. By doing so, the web server remains behind the firewall, which blocks all other unsolicited inbound traffic and protects the internal computers from direct external access. On the CompTIA ITF+ FC0-U61 exam, this scenario tests your understanding of how to balance accessibility with security using a common SOHO router feature—a frequent topic in the networking domain. A common trap is thinking you need to expose the server to the internet by placing it in a DMZ or assigning it the public IP, but that would bypass the firewall’s protection. Memory tip: think of port forwarding as a “bouncer” that only lets in guests (HTTP/HTTPS traffic) through the front door (ports 80/443) and escorts them directly to the right room (the web server), while keeping everyone else locked outside.
FC0-U61 Infrastructure Practice Question
This FC0-U61 practice question tests your understanding of infrastructure. This is a configuration task: choose the command set that satisfies every stated requirement. Small differences — like 'secret' vs 'password' or 'transport input ssh' vs 'all' — change whether the answer is correct. 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 small business uses a single external IP address from their ISP and has a network of 10 computers. They want to host a web server that must be accessible from the internet, but they also need to protect their internal network. They have a firewall/router that supports port forwarding. Which configuration should they implement?
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
Configure port forwarding on the router to direct HTTP (port 80) and HTTPS (port 443) traffic to the web server's internal IP address
Option D is correct because port forwarding allows the firewall/router to accept incoming HTTP (port 80) and HTTPS (port 443) traffic on the single public IP address and forward it to the web server's internal private IP address. This exposes only the necessary ports to the internet while keeping the web server behind the firewall, protecting the internal network from direct external access.
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.
- ✗
Connect the web server directly to the ISP modem, bypassing the firewall
Why it's wrong here
Bypassing the firewall removes protection for the server and the internal network.
- ✗
Place the web server in the DMZ of the firewall and allow all inbound traffic to the server's IP
Why it's wrong here
DMZ exposes the server to more traffic and potential attacks; port forwarding is more secure.
- ✗
Assign a public IP address to the web server and connect it to the same switch as the other computers
Why it's wrong here
This exposes the server directly and unnecessarily uses additional public IPs.
- ✓
Configure port forwarding on the router to direct HTTP (port 80) and HTTPS (port 443) traffic to the web server's internal IP address
Why this is correct
This allows external access only to the specified ports while protecting the internal network.
Related concept
Read the scenario before looking for a memorised answer.
Common exam traps
Common exam trap: answer the scenario, not the keyword
The trap here is that candidates often confuse the DMZ option (B) as a secure solution, not realizing that a typical SOHO DMZ exposes the host to all inbound traffic, which is far less secure than targeted port forwarding.
Detailed technical explanation
How to think about this question
Port forwarding works by creating a static NAT rule on the firewall that maps specific external ports (e.g., TCP 80 and 443) to an internal IP address and port. The firewall tracks these connections using stateful inspection, ensuring that only responses to initiated traffic are allowed back, while unsolicited traffic to other ports is dropped. In a real-world scenario, this is commonly used for hosting a web server on a residential or small business connection with a single dynamic public IP, often combined with a dynamic DNS service to handle IP changes.
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 FC0-U61 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.
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FAQ
Questions learners often ask
What does this FC0-U61 question test?
Infrastructure — This question tests Infrastructure — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: Configure port forwarding on the router to direct HTTP (port 80) and HTTPS (port 443) traffic to the web server's internal IP address — Option D is correct because port forwarding allows the firewall/router to accept incoming HTTP (port 80) and HTTPS (port 443) traffic on the single public IP address and forward it to the web server's internal private IP address. This exposes only the necessary ports to the internet while keeping the web server behind the firewall, protecting the internal network from direct external access.
What should I do if I get this FC0-U61 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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Last reviewed: Jun 25, 2026
This FC0-U61 practice question is part of Courseiva's free CompTIA 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 FC0-U61 exam.
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