CompTIA Tech+ (FC0-U71)Applications and SoftwareMedium
A technician is troubleshooting a web browser that is experiencing slow loading times and frequent pop-up ads, even on reputable websites. The user reports that these issues started recently. Which of the following is the MOST likely cause?
- AThe browser cache is too large.
- BThe operating system needs to be updated.
- CMalicious browser extensions or adware has been installed.
- DThe internet service provider (ISP) is throttling bandwidth.
Show answer & explanationAnswer & explanation
Correct answer: C. Malicious browser extensions or adware has been installed.
Slow loading and frequent pop-ups, especially recent onset, are classic symptoms of adware or malicious browser extensions that inject unwanted content and slow down browsing.
Why the other options are wrong
- A. A large browser cache might cause some sites to load slowly if it's constantly being written to, but it typically doesn't cause frequent pop-up ads.
- B. An outdated OS is less likely to suddenly cause browser-specific pop-ups and slowdowns unless there's a known vulnerability being exploited, but adware is a more direct cause for these symptoms.
- D. ISP throttling would affect all internet traffic, not just browser performance with specific symptoms like pop-ups.
Adware
Software that automatically displays or downloads advertising material (often pop-ups) when a user is online, often installed without explicit consent.
- Can be bundled with legitimate software or installed via malicious websites.
- Often includes browser extensions that modify browsing behavior.
- Causes slow performance, unwanted redirects, and intrusive ads.
Memory trick: When your browser's slow and noisy, suspect unwanted guests.