Subnets

1. When thinking about an IP address using classful addressing rules, an address can have
three parts: network, subnet, and host. If you examined all the addresses in one subnet,
in binary, which of the following answers correctly states which of the three parts of the
addresses will be equal among all addresses? Pick the best answer.
a. Network part only
b. Subnet part only
c. Host part only
d. Network and subnet parts
e. Subnet and host parts
2. Which of the following statements are true regarding the binary subnet ID, subnet broadcast
address, and host IP address values in any single subnet? (Choose two.)
a. The host part of the broadcast address is all binary 0s.
b. The host part of the subnet ID is all binary 0s.
c. The host part of a usable IP address can have all binary 1s.
d. The host part of any usable IP address must not be all binary 0s.
3. Which of the following is the resident subnet ID for IP address 10.7.99.133/24?
a. 10.0.0.0
b. 10.7.0.0
c. 10.7.99.0
d. 10.7.99.128
4. Which of the following is the resident subnet for IP address 192.168.44.97/30?
a. 192.168.44.0
b. 192.168.44.64
c. 192.168.44.96
d. 192.168.44.128
5. Which of the following is the subnet broadcast address for the subnet in which IP address
172.31.77.201/27 resides?
a. 172.31.201.255
b. 172.31.255.255
c. 172.31.77.223
d. 172.31.77.207

6. A fellow engineer tells you to configure the DHCP server to lease the last 100 usable IP
addresses in subnet 10.1.4.0/23. Which of the following IP addresses could be leased as a
result of your new configuration?
a. 10.1.4.156
b. 10.1.4.254
c. 10.1.5.200
d. 10.1.7.200
e. 10.1.255.200
7. A fellow engineer tells you to configure the DHCP server to lease the first 20 usable IP
addresses in subnet 192.168.9.96/27. Which of the following IP addresses could be leased
as a result of your new configuration?
a. 192.168.9.126
b. 192.168.9.110
c. 192.168.9.1
d. 192.168.9.119