When making a serial connection between two Windows 2000 machines， which type of cable is needed for proper communications？（）A、RG-59 coaxial cableB、RS-232 Null Modem cableC、telephone cableD、UTP CAT5 patch cable
When making a serial connection between two Windows 2000 machines， which type of cable is needed for proper communications？（）
- A、RG-59 coaxial cable
- B、RS-232 Null Modem cable
- C、telephone cable
- D、UTP CAT5 patch cable
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