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Which network is most widely used for powertrain communication?

  • A.A high speed controller area network operating at five hundred kilobits per second, which connects the powertrain units
  • B.The controller area network
  • C.The local interconnect network, which is used for high speed communication between the powertrain control units
  • D.Ethernet

Answer: B

Controller area network at five hundred kilobits per second is the powertrain standard. The last option states exactly that, which makes it a correct and more specific version. Local interconnect networks are slow subnetworks. Working the distinction through on a single concrete case fixes it more firmly than any rule of thumb. Checking which component actually carries the load settles most questions of this kind at once. Most errors here come from carrying a result across from a neighbouring case where it does not hold.

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