You use Chrome's Incognito mode while connected to your workplace's WiFi network to search for a new job. Which of the following is accurate?
AYour employer cannot see your search activity because Incognito hides it from the network
BYour employer's network administrators can still see your traffic, because Incognito only prevents local browser history
CGoogle cannot build an advertising profile from this session because you used Incognito
DYour searches are deleted from Google's servers when the Incognito window closes
Incognito mode only prevents the browser from saving history, cookies, and form data on your device. Network traffic is still visible to anyone monitoring the network — your employer's IT team, your ISP, or anyone with access to network logs. Google, the websites you visit, and any embedded trackers still receive and may retain your requests. Incognito is a local privacy tool, not a network privacy tool.
Question 2 Multiple Choice
A friend tells you: 'I cleared my browser history, so no one can ever find out what sites I visited.' Which scenario would prove this claim wrong?
ASomeone examines the browser's cache folder, which clears separately from history
BYour ISP checks its own traffic logs for websites you visited during that session
CA website you visited still has server logs recording your IP address and visit time
DBoth B and C — clearing browser history doesn't remove records held by external parties
Clearing browser history removes the local record on your device — it has no effect on records held elsewhere. Your ISP logs all traffic passing through its infrastructure. Every web server you connect to logs incoming requests with your IP address and a timestamp. Advertising networks and analytics services also retain data from the session. Clearing history is useful for local privacy (preventing someone who picks up your device from seeing your browsing), not for erasing all evidence of your activity.
Question 3 True / False
Private browsing mode prevents your Internet Service Provider from seeing which websites you visit.
TTrue
FFalse
Answer: False
Private (Incognito) mode only affects what is stored on your local device. Your ISP handles all network traffic between your device and the internet, so it sees every DNS lookup and connection request you make regardless of your browser's privacy mode. To hide traffic from your ISP, you would need a VPN, which encrypts your traffic before it reaches the ISP's infrastructure.
Question 4 True / False
Clearing your browser's history also clears your cookies and cached files.
TTrue
FFalse
Answer: False
Browsers store history, cookies, and cache as separate categories. History records the URLs you visited. Cookies store login sessions, preferences, and tracking identifiers. Cache stores page assets for faster reloading. Clearing history removes visited-page records but leaves cookies intact — meaning you will still be logged into websites and trackers embedded across sites can still identify you. A thorough clean slate requires clearing each category explicitly.
Question 5 Short Answer
What is the difference between 'local privacy' and 'network privacy,' and why does clearing browser history only address one of them?
Think about your answer, then reveal below.
Model answer: Local privacy concerns what is stored on your own device — browser history, cookies, cached files. Network privacy concerns what is visible to external parties as your traffic passes through their infrastructure — your ISP, network administrators, and the websites you visit. Clearing browser history removes the local record but leaves untouched everything recorded outside your device. ISPs, web servers, and analytics networks retain their own logs independently of anything you do in your browser settings.
Most privacy mistakes stem from conflating these two levels. Deleting history prevents someone who grabs your laptop from seeing your activity; it does nothing to erase records held by your ISP or the sites you visited. Network-level privacy requires tools like VPNs (encrypt traffic from your ISP), HTTPS (encrypts content between browser and site), and tracker blockers (prevent third-party analytics scripts from profiling you across sites). Each tool addresses a specific link in the chain.