Question

When implementing a network with WAN technologies, which of the following must be known? (select two)

a. A modem is used to connect to a digital line.

b. A router is typically considered a DTE device.

c. A CSU/DSU is used to connect to an analog line.

d. A router is typically considered a DCE device.

e. A modem is used to connect to an analog line.

Answer 1

For WAN implementation, a modem is used for analog line connections, and a router is usually a DTE device, interfacing with DCE devices like CSU/DSU for digital line connections.

Step-by-step explanation:

When implementing a network with WAN technologies, two important considerations are that a modem is used to connect to an analog line and a router is typically considered a DTE (Data Terminal Equipment) device. A modem converts digital signals into analog signals (and vice versa) to transmit data over traditional phone lines. A router, functioning as DTE, interfaces with the DCE (Data Circuit-terminating Equipment), typically a CSU/DSU (Channel Service Unit/Data Service Unit), to connect to a digital line. A CSU/DSU is used to connect to digital lines and provide framing, signaling, and error checking for WAN communications.