Question 1 Question1 You want to allow users to access the CD-RW device on your machine from any other host on the network via NFS. Further‚ you only want them to have read-only access to the device. Which line should you add to the /etc/exports file to allow this? a. /mnt /cdrom *(ro) b. /mnt /cdrom *(r) c. /mnt /cdrom * d. /mnt /cdrom Question 2 Which of the following files defines how FTP connection requests are processed by the TCP Wrapper? a. ftpusers b. inetd.conf c. ftpaccess
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COAL -- A Fossil Fuel How Coal Was Formed How We Get Coal How Coal is Transported Types of Coal Where We Get Coal How Coal is Used Coal and the Environment energy calculator links page recent statistics HOW COAL WAS FORMED Coal is a combustible black or brownish-black sedimentary rock composed mostly of carbon and hydrocarbons. It is the most abundant fossil fuel produced in the United States. Coal is a nonrenewable energy source because it takes millions of years to create. The
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A Dolphin’s Nightmare The makers of The Cove effectively use ethos‚ logos‚ and pathos‚ as a call to action to end the annual slaughter of twenty thousand dolphins in Taiji‚ Japan. Though faced with many challenges due to the perverse Japanese government the filmmakers were able to portray the nightmare these dolphins endure. Through the use of ethos‚ Ric O’Barry‚ Louie Psihoyos‚ and the Oceanic Preservation Society put together a brilliant film that shows the world the horrors that take place in
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Hazardous Household Products Fact Sheet Household hazardous products represent an unregulated waste stream that can lead to environmental contamination when improperly disposed. What happens to improperly disposed of hazardous household products? 1. Hazardous household products that are flushed down the drain‚ poured onto the ground‚ or dumped into storm drains pollute the Bay’s waters and possibly your drinking water. 2. Disposal of hazardous materials in a municipal landfill contributes to the
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stay alive. So Shi Huangdi would consume large amounts of Mercury because he believed it would increase his time alive. He began his quest for immortality‚ he had heard of an elixir that is believed to make you live forever‚ so he searched. Shi Huangdi search for elixir until the time of his death.
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History of Calcium- Calcium is a very interesting element that has a lot to tell about itself. There is much history to be learned about calcium. Calcium was actually discovered by Humphry Davy in 1808. Calcium’s name happens to come from the latin ‘calx’ meaning lime. Lime (calcium oxide‚ CaO) was a useful material that was created by heating limestone. Before the discovery of calcium‚ a man named Antoine Lavoisier classified the lime as “earth” because it was very difficult‚ almost
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Plasma Complexity! Plasma is said to a substance similar to gas in which a certain portion of the particles are ionized. The basic premise is that heating a gas dissociates its molecular bonds‚ rendering it into its constituent atoms. Further heating leads ionization‚ turning it into plasma: containing charged particles‚ positive ions and negative electrons. The presence of a non-negligible number of charge carriers makes the plasma electrically conductive so that it responds strongly to electromagnetic
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Fluid B [pic] [pic] Figure Q1 [8 marks] . Q2. Figure Q2a shows a mercury manometer‚ (mercury s.g.=13.6) connected to a pipeline transporting oil (oil s.g.=0.85)‚ the other arm of the manometer is exposed to the atmosphere. What is the absolute pressure in the pipeline? [pic] Figure Q2a [10 marks] Another mercury manometer is connected to two oil pipelines (oil s.g.=0.85) labelled A and B‚ as shown below in Figure Q2b. Calculate the
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Chlor-alkali is an industrial process widely used to produce chlorine‚ caustic soda‚ and other chlorine and sodium derived/based products such as sodium hypochlorite‚ hydrochloric acid‚ chlorosulphonic acid‚ bleaching power‚ polyaluminium chloride‚ hydrogen gas‚ and chlorinated paraffin. The process uses brine (sodium chloride) solution during electrolysis to produce aforesaid products which are also known as Chlor-Alkali Industry /market products. The report estimates the market size of Chlor-Alkali
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Materials 1 spectroscope 1 incandescent bulb 1 hydrogen gas discharge tube 1 mercury discharge tube 1 nitrogen gas discharge tube 1 fluorescent light 1 neon gas discharge tube Solar light source 1 discharge tube apparatus Procedure The procedure of using a spectroscope was practiced with a fluorescent light source. The slit was pointed towards the source‚ and the spectroscope was shifted until the spectrum was clearly visible. The appearance of the spectrum from the fluorescent light
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