Q: What is a question about this article? If the question is unanswerable, say "unanswerable".
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.
What feature enables an MCU to allow for multiple parties to be seen on screen at the same time?
A: Continuous Presence

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In 2007, the Japanese Buddhist organisation Nipponzan Myohoji decided to build a Peace Pagoda in the city containing Buddha relics. It was inaugurated by the current Dalai Lama.
Which Japanese Buddhist organization built a Peace Pagoda in New Delhi in 2007?
A: Nipponzan Myohoji

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Many names for pubs that appear nonsensical may have come from corruptions of old slogans or phrases, such as "The Bag o'Nails" (Bacchanals), "The Goat and Compasses" (God Encompasseth Us), "The Cat and the Fiddle" (Chaton Fidele: Faithful Kitten) and "The Bull and Bush", which purportedly celebrates the victory of Henry VIII at "Boulogne Bouche" or Boulogne-sur-Mer Harbour.
What location does Boulogne Bouche refer to?
A: Boulogne-sur-Mer Harbour

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One-color light is well suited for traffic lights and signals, exit signs, emergency vehicle lighting, ships' navigation lights or lanterns (chromacity and luminance standards being set under the Convention on the International Regulations for Preventing Collisions at Sea 1972, Annex I and the CIE) and LED-based Christmas lights. In cold climates, LED traffic lights may remain snow-covered. Red or yellow LEDs are used in indicator and alphanumeric displays in environments where night vision must be retained: aircraft cockpits, submarine and ship bridges, astronomy observatories, and in the field, e.g. night time animal watching and military field use.
In what year were luminescence standards set?
A:
1972