aaaz
Yogesh Khurana
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2 Answers
What is the first valid host on the subnetwork that the node 172.20.225.111 255.255.255.128 belongs to?
author
Yogesh Khurana
Answer:172.20.225.1 subnet mask is 255.255.255.128 so block size will be  256-128=128 so  Subnetwork will be 172.20.225.0 and first valid host 172.20.225.1
How many collision domains are present in the diagram and how?
author
Yogesh Khurana
There are 8 collision domain because hubs are in one collision domain switches have per port collision domain