Refer to the exhibit. Which statement is true about the CSU/DSU device?
- It connects asynchronous devices to a LAN or WAN through network and terminal emulation software.
- It uses a multiport internetworking device to switch traffic such as Frame Relay, ATM, or X.25 over the WAN.
- It provides termination for the digital signal and ensures connection integrity through error correction and line monitoring.
- It converts the digital signals produced by a computer into voice frequencies that can be transmitted over the analog lines of the public telephone network.
Exam with this question: CCNA Exploration 4: EWAN Practice Final Exam