Explanation
PC1 would not receive a response . When PC1 pings the IP address 172.16.1.2 , the packet would reach R2 but R2 does not have information related to the network 192.168.1.0 to which PC1 belongs . So the response packet to PC1 would be dropped . This information has to be provided on R2 with a static route for the network 192.168.1.0 / 24 or using dynamic routing protocols between R1 and R2 .
Question 18
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