Problem: Assistive listening devices in many theaters and similar spaces use arrays of infrared LEDs to send sound to listeners' receivers. Light-emitting diodes (as well as semiconductor lasers) are used to send data over many types of fiber optic cable, from digital audio over TOSLINK cables to the very high bandwidth fiber links that form the Internet backbone. For some time, computers were commonly equipped with IrDA interfaces, which allowed them to send and receive data to nearby machines via infrared.
What type of fiber forms the backbone of the internet?
The answer is the following: very high bandwidth

Problem: 83% of the total population adheres to Christianity, making it the most common religion in Swaziland. Anglican, Protestant and indigenous African churches, including African Zionist, constitute the majority of the Christians (40%), followed by Roman Catholicism at 20% of the population. On 18 July 2012, Ellinah Wamukoya, was elected Anglican Bishop of Swaziland, becoming the first woman to be a bishop in Africa. 15% of the population follows traditional religions; other non-Christian religions practised in the country include Islam (1%), the Baha'i Faith (0.5%), and Hinduism (0.2%). There are 14 Jewish families.
What percentage of the Swazi population are Christian?
The answer is the following: 83%

Problem: Under extreme compressive stresses and pressure, marine sedimentary rocks were uplifted, creating characteristic recumbent folds, or nappes, and thrust faults. As the rising peaks underwent erosion, a layer of marine flysch sediments was deposited in the foreland basin, and the sediments became involved in younger nappes (folds) as the orogeny progressed. Coarse sediments from the continual uplift and erosion were later deposited in foreland areas as molasse. The molasse regions in Switzerland and Bavaria were well-developed and saw further upthrusting of flysch.
What was uplifted from extreme compressive stresses and pressure?
The answer is the following: marine sedimentary rocks

Problem: The principal official languages (German, French, and Italian) have terms, not used outside of Switzerland, known as Helvetisms. German Helvetisms are, roughly speaking, a large group of words typical of Swiss Standard German, which do not appear either in Standard German, nor in other German dialects. These include terms from Switzerland's surrounding language cultures (German Billette from French), from similar term in another language (Italian azione used not only as act but also as discount from German Aktion). The French spoken in Switzerland has similar terms, which are equally known as Helvetisms. The most frequent characteristics of Helvetisms are in vocabulary, phrases, and pronunciation, but certain Helvetisms denote themselves as special in syntax and orthography likewise. Duden, one of the prescriptive sources for Standard German, is aware of about 3000 Helvetisms. Current French dictionaries, such as the Petit Larousse, include several hundred Helvetisms.
What are terms that are not used outside of Switzerland known as?
The answer is the following:
Helvetisms