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What is Internet? (how search work (search engine running program '…
What is Internet?
how search work
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search engine's ranking algorithm check from the title, sequence or keywords
wire,cable &wifi
passage by electricity, light & radio waves
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send bits as light beams from one place to another using a fiber optic cable which is the alternative when it in the long distance
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what is internet?
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to access information, send/post message, communicate with friends and family
packets, routing & reliability
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IP addresses & DNS
DNS (Domain Name System)
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DNS server are connected in a distributed hierarchy & divided into zone, splitting major domain (eg: org,com, net)
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cyber-security & crime
cybercrime causes huge problems for society personally,financially and even in matters of national security