What is the difference between a CSU/DSU and a modem?（）A、A CSU/DSU converts analog signals from a router to a leased line; a modem converts analog signals from a router to a leased lineB、A CSU/DSU converts analog signals from a router to a phone line; a modem converts digital signals from a router to a leased lineC、A CSU/DSU converts digital signals from a router to a phone line; a modem converts analog signals from a router to a phone lineD、A CSU/DSU converts digital signals from a router to a leased line; a modem converts digital signals from a router to a phone line
What is the difference between a CSU/DSU and a modem?（）
- A、A CSU/DSU converts analog signals from a router to a leased line; a modem converts analog signals from a router to a leased line
- B、A CSU/DSU converts analog signals from a router to a phone line; a modem converts digital signals from a router to a leased line
- C、A CSU/DSU converts digital signals from a router to a phone line; a modem converts analog signals from a router to a phone line
- D、A CSU/DSU converts digital signals from a router to a leased line; a modem converts digital signals from a router to a phone line
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