a. 192.168.1.0 b. 192.168.1.255 c. 192.168.2.1 d. No addresses are available 7.6 Which CIDR network has the smallest possible number of hosts? a. 123.0.0.0/8 c. 123.45.67.0/24 b. 123.45.0.0/16 d. All have the same possible number of hosts 7.7. A host with the IP address of 172.16.18.5/18 belongs to what network? a. 172.16.0.018 b. 172.16.64.0/18 c. 172.16.96.0/18 d. 172.16.128.0/18 4. Identify whether each IP address is valid or invalid. If invalid, give a reason. a. 46.47.482 b. 3.6.11.14 c. 13.265.3.100 d. 23-45-67-89-0A-BC 5. Consider the class-less IP network 130.45.67.0/24 How many bits are in the net id? How many bits are in the host id? What is the mask in binary and dotted decimal? a. b. c. and d. How many possible actual hosts are there on this network? 6. A computer has an IP address of 17.17.200.3 assigned to it with a subnet mask of /18 What is the IP address of the network as a whole? (in either binary or dotted decimal) a. What is the broadcast IP address for this network? (in either binary or dotted decimal) b. What range of addresses can be assigned to hosts on this network? c. 7. Is the host 128.235.207.16 on the network 128.235.204.0/22? We wish to assign a CIDR block of 64 addresses (include host addresses of all 0's and all I's in the block, even though they will not be assigned to actual hosts) 8. a. How many host id bits are needed for 64 addresses? b. How many bits are in the net id? c. What is the mask in slash notation? 9. One network is assigned the block of class-less IP addresses from 194.172.128.0 to 194.172.135.255. How many bits are in the net id part of this address block