Switched Network X Frame X Packet Switch X3 Host A Data Link A-R1 Host C Physical Link (A-X1) Switch X4 Switched Network Y Switch X1 Router R1 Switch X2 Route A-B Data Link R1-R2 Packet Frame Y Switched Network z Switch Z1 Router R2 Host B Packet Frame Z Switch Z2 Data Link R2-B Switch 23 Host E Switch 24 Host D Router R3 1-1. a) When Host Din the above Figure transmits a packet to Host Chow many physical links, data links, and routes will there be? b) How many packets will there be? c) How many frames