what are the three main categories desings within tinkercad, 3D design, circuit, codeblocks, circuit,code,simulation, what is the main purpose of a firewall in cyber security, to block unsolicited communication, to scan for viruses in emails, which feature would you use to display only those records that meet certain cirteria, sort, filter, which relationship operator checks if two values are not equal, !=, ==, what does the sort feature in excel help you do, arrange data in asending or decending order, remove duplicate recoeds

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