Subnetting #1

1.Which IP addresses are network addresses? (Choose two.)

A.64.104.3.7/28
B.192.168.12.64/26
C.192.135.12.191/26
D.198.18.12.16/28
E.209.165.200.254/27
F.220.12.12.33/27

2.A network administrator is building a network for a small business that has 22 hosts. The ISP has assigned only one Internet routable IP address. Which IP address block can the network administrator use to address the network?

A.10.11.12.16/28
B.172.31.255.128/27
C.192.168.1.0/28
D.209.165.202.128/27

3.What subnet mask would be used with the hosts in the 128.107.176.0 /22 network?

A.255.0.0.0
B.255.248.0.0
C.255.255.252.0
D.255.255.255.0
E.255.255.255.252

4.You have been assigned the address block 10.255.255.224 /28 to create the network addresses for point-to-point WAN links. How many of these WANs can you support with this address block?

A.1
B.4
C.7
D.14

5.A network administrator needs to create a new network that has 14 computers and two router interfaces. What subnet mask will provide the appropriate number of IPv4 addresses for this network with minimal wasted addresses?

A.255.255.255.128
B.255.255.255.192
C.255.255.255.224
D.255.255.255.240
E.255.255.255.248
F.255.255.255.252

6.List the ranges of IPv4 addresses for private use.