I need help with these questions a prompt response would be

I need help with these questions, a prompt response would be highly appreciated.

1. what is the checksum for the data (in Hex): 3456ABCC02BCEEEE?

2. Show the subnet address, subnet mask in slash notation, broadcast address, number of addresses, first valid host address, and the last valid host address for the subnet address of the host with IPv4 address: 182.16.200.8        255.255.224.0

Solution

1) checksum forthe given data 3456ABCC02BCEEEE is 65.

2) subnet address: 182.16.200.0

subnet mask : 24

broadcast address: 182.16.200.255

number of addresses: 254

first valid host address: 182.16.200.1 - 182.16.200.254