1. Crust: The Earth’s surface is composed mostly of water‚ basalt and granite. Oceans cover about 70% of Earth’s surface. The Earth’s thin‚ rocky crust is composed of silicon‚ aluminum‚ calcium‚ sodium and potassium. The crust is divided into continental plates which drift slowly (only a few centimeters each year) atop the less rigid mantle. The crust is thinner under the oceans; this is where new crust is formed. Continental crust is about 25-90 km thick. 2. Mantle: Under the crust is the rocky
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X Window System Linux Networking 8/13/2013 John Rowell 1. What three components make up the X Windows System? What is the additional component? X server Window Manager Desktop environment X font server 2. Why does the Xorg.conf file contain a warning about editing the file? What is the function of the module section in the xorg.conf or XF86config. File? 7.3.1.5. Module The Module section specifies which modules from the /usr/X11R6/lib/modules/ directory the X server
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Linux Admin Research Paper #1 Linux is a open source operating systems that has been evolving over many years. Linux has changed to a very powerful platform that has been adopted by many people as well as developed by the robust open source community. One particular aspect of development that has changed is the security of linux‚ with the introduction of a few security technologies such as SE Linux‚ chroot jail‚ and IP tables. With many of these new technologies Linux has become more secure and
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Official User Guide Linux Mint Main Edition Page 1 of 50 Table of Contents INTRODUCTION TO LINUX MINT........................................................................................ 4 HISTORY.........................................................................................................................................4 PURPOSE.........................................................................................................................................4 VERSION
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----------Day 01: ----------Date: Friday 17th‚ June Time: 19:00 to 22:00 -----------------------------------------01. Introduction and Orientation --------------------------------------------02. Linux History and Redhat Certification --------------------------------------------------------03. Linux Installation I - Graphical Installation ------------------------------------------------------------04. Introduction to vi/vim editor --------------------------------------------- vi (pronounced vee-EYE
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The ozone layer is a layer in Earth’s atmosphere which absorbs most of the Sun’s UV radiation. It contains relatively high concentrations of ozone (O3)‚ although it is still very small with regard to ordinary oxygen‚ and is less than ten parts per million‚ the average ozone concentration in Earth’s atmosphere being only about 0.6 parts per million. The ozone layer is mainly found in the lower portion of the stratosphere from approximately 20 to 30 kilometres (12 to 19 mi) above Earth‚ though the
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OZONE LAYER The Earth ’s ozone layer protects all life from the sun ’s harmful radiation‚ but human activities have damaged this shield. Less protection from ultraviolet light will‚ over time‚ lead to higher skin cancer and cataract rates and crop damage. The ozone layer is one layer of the stratosphere‚ the second layer of the Earth’s atmosphere. The stratosphere is the mass of protective gases clinging to our planet. Ozone is only a trace gas in the atmosphere only about 3 molecules for every
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Linux Vs Windows 1. Why has Microsoft been so successful with Windows? Windows has been successful with Windows for a number of reasons such as below: * Dominant Operating System/Large Installation Base: Windows was first launched in 1983‚ and has been the most dominant Operating System with a huge market share and installation base. * Enormous plethora of GUIs: Microsoft windows provide a range of features from a step-by-step user interface for novice users to powerful interfaces
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Linux admin interview questions 1. How do you take a single line of input from the user in a shell script? 2. Write a script to convert all DOS style backslashes to UNIX style slashes in a list of files. 3. Write a regular expression (or sed script) to replace all occurrences of the letter ‘f’‚ followed by any number of characters‚ followed by the letter ‘a’‚ followed by one or more numeric characters‚ followed by the letter ‘n’‚ and replace what’s found with the string “UNIX”.
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LINUX vs. WINDOWS The debate on Windows vs. Linux is truly an on going one with no end in site. Regardless how you come at this juncture you are usually a UNIX supporter or a customer of Microsoft OS and products who are grateful for products of Microsoft. We will in the following paragraphs try to compare the advantages and disadvantages of these different systems. We will give a brief description on the cost of these products‚ what kind of market-share these two systems hold‚ the availability
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