FC0-U71 Tech Concepts and Terminology Practice Question
A home user reports that a web page loads slowly and intermittently fails to open, but other users on the same network reach the same site without trouble, and the site is reachable from a mobile phone on cellular data. The technician suspects the browser is holding outdated cached data for that site. Which action should the technician take first?
⚠ Common exam trap
The trap here is escalating to network hardware or shared services when the evidence shows the problem is confined to a single browser on a single device.
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
✓
Clear the browser cache and cookies
The symptom is isolated to one browser on one machine while other devices reach the same site, which points to locally stored browser data rather than network hardware, the shared internet link, or DNS. Clearing the cache and cookies forces a fresh fetch from the server and directly resolves stale or corrupt cached content.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
Change the DNS server addresses on the router
Why it's wrong here
DNS resolution problems typically cause an entire site to fail with name resolution errors for every user on the network, not slow and intermittent loading for one person. Because other devices resolve and reach the site normally, name resolution is functioning. Changing router DNS settings is a broad configuration change that does not match the isolated, browser-specific symptom described.
- ✗
Reboot the internet service provider modem
Why it's wrong here
Restarting the modem would disrupt connectivity for every device on the network and would not explain why other users reach the same site without trouble. The symptom is isolated to one browser on one machine, so the shared internet connection is demonstrably working. Power cycling shared equipment to fix a client-side caching problem is an unnecessary action that risks interrupting other users.
- ✓
Clear the browser cache and cookies
Why this is correct
A browser cache stores copies of pages, scripts, and images so they load faster on repeat visits. When those copies become stale or corrupt, the browser can render an outdated version or stall while requesting resources. Clearing the cache and cookies forces the browser to fetch fresh content from the web server, which directly addresses the suspected cause and is non-destructive to the rest of the system.
- ✗
Replace the network interface card
Why it's wrong here
A failing network interface card typically produces symptoms such as no connectivity at all, dropped link lights, or errors across every site and service, not a problem isolated to one web page. Other devices on the same network reach the site successfully, which points away from the local network hardware. Replacing the adapter is an invasive step that does not match the evidence.
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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.