Refer to the exhibit. Which statement is true about the WAN switch device?
- It uses a multiport internetworking device to switch traffic such as Frame Relay, ATM or X.25 over the WAN.
- It provides internetworking and WAN access interface ports that are used to connect to the service provider network.
- 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.
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