FC0-U71 Security Practice Question
A user is setting up a new wireless router for a home office and wants to secure the wireless network. Which TWO of the following should the user configure to help prevent unauthorized access? (Choose two.)
⚠ Common exam trap
The trap here is believing that disabling SSID broadcast or enabling DHCP improves security, when these either provide only obscurity or are convenience features that do not prevent unauthorized access.
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
✓
Change the default administrator password
To secure a home wireless network, the user should enable strong encryption such as WPA3 and change the router's default administrator password. WPA3 protects data in transit and controls who can join, while changing the default admin password prevents unauthorized reconfiguration. The other options either provide minimal protection, are unrelated to security, or can increase exposure.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
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Enable DHCP on the router
Why it's wrong here
DHCP automatically assigns IP addresses to devices on the network. It is a convenience feature, not a security control. Enabling DHCP does not prevent unauthorized devices from connecting; in fact, it makes it easier for any device to obtain an IP address. It does not contribute to preventing unauthorized access, so it is not a correct choice for securing the wireless network.
- ✓
Change the default administrator password
Why this is correct
Default administrator credentials are publicly known and are a common entry point for attackers to reconfigure the router. Changing the default password to a strong, unique one prevents unauthorized users from accessing the router's management interface and altering security settings. This is a fundamental step in securing any network device and directly reduces the risk of unauthorized access, making it a correct choice.
- ✓
Enable WPA3 encryption
Why this is correct
WPA3 is the latest wireless security protocol and provides strong encryption for data transmitted over the air. It also includes protections against offline dictionary attacks. Enabling WPA3 on the router ensures that only devices with the correct pre-shared key or credentials can join the network and that traffic is encrypted. This directly helps prevent unauthorized access and eavesdropping, making it a correct choice.
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Disable SSID broadcast
Why it's wrong here
Disabling SSID broadcast hides the network name from casual scanning, but it is not a strong security control. Attackers can still discover the network using readily available tools, and legitimate users may have difficulty connecting. It does not prevent unauthorized access and can create a false sense of security. Therefore it is not one of the best practices for securing the wireless network.
- ✗
Place the router near a window
Why it's wrong here
Placing the router near a window can extend the wireless signal outside the home, making it easier for unauthorized users to detect and attempt to connect to the network. This is a physical placement issue that can weaken security rather than improve it. It does not prevent unauthorized access and is not a recommended security configuration, so it is not a correct choice.
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About these practice questions
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JA
Written and reviewed by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
Last reviewed September 2026 · checked against the official CompTIA exam blueprint
This FC0-U71 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-U71 exam.