Problem: Simultaneous videoconferencing among three or more remote points is possible by means of a Multipoint Control Unit (MCU). This is a bridge that interconnects calls from several sources (in a similar way to the audio conference call). All parties call the MCU, or the MCU can also call the parties which are going to participate, in sequence. There are MCU bridges for IP and ISDN-based videoconferencing. There are MCUs which are pure software, and others which are a combination of hardware and software. An MCU is characterised according to the number of simultaneous calls it can handle, its ability to conduct transposing of data rates and protocols, and features such as Continuous Presence, in which multiple parties can be seen on-screen at once. MCUs can be stand-alone hardware devices, or they can be embedded into dedicated videoconferencing units.
Where can an MCU be embedded?
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Answer: dedicated videoconferencing units

Problem: Opponents argue that actual energy savings are inconclusive, that DST increases health risks such as heart attack, that DST can disrupt morning activities, and that the act of changing clocks twice a year is economically and socially disruptive and cancels out any benefit. Farmers have tended to oppose DST.
What profession is more likely to want to repeal DST: farmers or shopkeepers?
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Answer: Farmers

Problem: The final two contestants were Lee DeWyze and Bowersox. DeWyze was declared the winner during the May 26 finale. No new song was used as coronation song this year; instead, the two finalists each released a cover song DeWyze chose U2's "Beautiful Day", and Bowersox chose Patty Griffin's "Up to the Mountain". This is the first season where neither finalist achieved significant album sales.
When was the finale held?
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Answer:
May 26