You don't know tech: The InfoWorld news quiz

iPhones slow on the upload, Justin Bieber hits the road

Last week the blogosphere was up in arms over the iPhone 4's spotty reception; this week it was all about the phone's slow uploads. (Some people just aren't happy unless they've got something to complain about.) In other non-Apple news: Twitter has a new advertising service, Facebook has a Germany problem, YouTube is making it easier to turn your brain into mush, and this just in: Chuck Norris is not Justin Bieber's dad, despite the uncanny resemblance. Are you paying close attention to today's tech headlines? Prove it by acing this quiz. Correct answers are worth 10 points. Now get going.

1. Uh-oh, there's more trouble in Apple paradise. Some users are reporting dialup-like speeds when uploading files from their iPhone 4s. What's causing the slowdown?

a. A secret AT&T cap on uploads
b. More Apple antenna problems
c. A software defect
d. They're holding the phone wrong

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