David is a network administrator in an organization. The organization has leased the Class C address of 200.16.16.0. He subnets using a 255.255.255.224 subnet mask using 2 Cisco routers. How many IP addresses are available to be allocated to computers?
  1. 29
  2. 62
  3. 30
  4. 20
Explanation
Answer - A - 29 IP addresses are available for computers.

Key Takeaway: A subnet mask of 255.255.255.224 gives five host address bits. The maximum number of host addresses is 25 - 2 = 30. Since one address is needed for the router interface, there are 29 IP addresses available for computers, including servers and hosts.
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