3INTERNET OF THINGSQuestion 1The statement “The best interface for a system is no user interface” merely meanseliminating the user interface during the implementation of any technology in order to eliminatevarious process during the interfacing of the user with respect to the technology (Cui, 2016). Asa result of which it would give more time for the user as there would not be much steps in orderto operate the technology in the phase of user interface. It can be explained with the help of twoexamples.Example 1:In cars user interface technology is implemented to open the gate by using an applicationoperated by mobile phone. It takes several steps before opening gate as the user will have to takeout his phone and unlock the phone then dig into the icons of many applications, search for theparticular application then he or she can open the gate (Mulani & Pingle, 2016). Example 2:User Interface in the merchant pay system by using phone application (Fisher, 2013). Ifwe implement no user interface system it will eliminate all the steps including entering passwordto phone and app and all that are explained in example 1 and allow user to sit, order and leave asthis system will pay the restaurant bill automatically.Question 2Specifications of CablesCable typesBandwidthDistanceInterferenceratingCostSecurityTwisted PairCable1MHz100mSusceptible tointerferencebut limited toa distanceCheapest thanothersPoor SecurityCoaxial Cable1GHz500mLeastsusceptible tointerferencethan othersMedium costcompared toothersModeratesecurity butcan bebreached(Winzer2014).Fibre OpticCable75 THz10km(Single-Notsusceptible toExpensiveHighly

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