Intro to Computing - How the Internet WorksA browser sends a request but the page never loads. Which of these is a likely cause?AThe browser sent the HTTP request correctlyBThe DNS server did not respond with an IP addressCThe user closed the browser before loadingDThe webpage was cached locallyCheck Answer
Step-by-Step SolutionSolution:Step 1: Identify failure point in request processIf DNS does not respond, the browser cannot find the server IP.Step 2: Understand impact on page loadingWithout IP, the browser cannot send HTTP request, so page never loads.Final Answer:The DNS server did not respond with an IP address -> Option BQuick Check:DNS failure = page won't load [OK]Quick Trick: No DNS reply means no page load [OK]Common Mistakes:Assuming HTTP request sent means successIgnoring DNS roleThinking cache affects initial load
Master "How the Internet Works" in Intro to Computing9 interactive learning modes - each teaches the same concept differentlyLearnWhyDeepFlowTryChallengeDrawRecallReal
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