Sept. 9, 2011: Yahoo gives Bartz the ax, Assange goes on the attack This week’s theme: Now you see them, now you don’t. Following blockbuster announcements by Google, HP, and Apple in recent weeks, Yahoo joined the crowd by giving 30-month CEO Carol Bartz her walking papers, and AOL capped it by showing TechCrunch’s Michael Arrington the door. What else happened? IFA Berlin, Europe’s answer to the Consumer Electronics Show, featured the appearances (and disappearances) of several groundbreaking products, as well as the U.S. State Department’s enemy No. 1, WikiLeaks’ Julian Assange. Google killed off more of its darlings, and Amazon’s Jeff Bezos learned that gravity can be a cruel taskmaster. Do you have what it takes to ace our quiz? Give yourself 10 points for each correct answer, and keep an eye out for falling objects (and plummeting CEOs). Now begin.1. Yahoo dropped a bombshell this week, ousting CEO Carol Bartz and installing an interim chief to take her place. Who’ll be manning the fort while Yahoo looks for a permanent replacement?a. Tim Cook b. Tim Armstrong c. Tim Morse d. Tim Conway Take the InfoWorld news quizMore InfoWorld quizzes Data Management