Perform some research on the High-level Data Link Control (HDLC) Data-Link protocol and answer the following questions:

1. Networks may be classified by the geographic area they coverage (LAN/WAN/etc.) or, they may alternatively be described by their application specific use case (Storage Network, Provider Network, Controller Network, etc.).
   1. What kind of network is HDLC primarily used in?
   2. Explain why HDLC is used for the kind of network you have indicated.