DRAG DROP
Drag and drop the functions from the left onto the correct Path Computation Element Protocol roles on the right
Answer: 
Explanation:
Path Computation Element (Calculates paths through the network, keeps TE topology database information, sends path status updates) Path computation Client (sends path calculation request, sends path creation request)
Path Computation Element (PCE)
Represents a software module (which can be a component or application) that enables the router to compute paths applying a set of constraints between any pair of nodes within the router’s TE topology database. PCEs are discovered through IGP.
Path Computation Client (PCC)
Represents a software module running on a router that is capable of sending and receiving path computation requests and responses to and from PCEs. The PCC is typically an LSR (Label Switching Router). https://www.cisco.com/c/en/us/td/docs/routers/crs/software/crs_r53/mpls/configuration/guide/b-mpls-cg53x-crs/b-mpls-cg53x
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