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What is satellite  communication and how does it work  ?    #Communications satellites  are used for television, telephone, radio, internet,  and military The purpose of  communications satellites  is to relay the signal around the curve of the Earth allowing  communication  between widely separated geographical  #A communications satellite is an artificial satellite that relays and amplifies radio telecommunications signals via a transponder; it creates a communication channel between a source transmitter and a receiver at different locations on Earth. Communications satellites are used for television, telephone, radio, internet, and military applications. There are about 2,000 communications satellites in Earth's orbit, used by both private and government organizations.Many are in geostationary orbit 22,236 miles (35,785 km) above the equator, so that the satellite appears stationary at the same point in the sky, so the satellite dish antennas of ground stations can be aimed perm

HACKER Ethical Hacking Training Learn to hack and secure web applications About Ethical Hacking Training The Ethical Hacking Training by CREZYTECH4U is  online training program in the field of web application security. In this training program, you will learn how to perform a vulnerability   assessment and penetration test on a live web application in a virtual lab environment. This training program is created by CREZYTECH4U'S team of STUDENT. You will learn through video tutorials. For a great hands-on learning experience, this training program is packed with practice exercises.  What is Hacking? Introduction & Types What is Hacking? Hacking is identifying weakness in computer systems or networks to exploit its weaknesses to gain access . Example of Hacking: Using password cracking algorithm to gain access to a system Computers have become mandatory to run a successful businesses. It is not enough to have isolated computers systems; they