1. An IPv6 address is made up of how many bits?
d. 128
An IPv6 address has 128 bits as opposed to the 32 bits found in an IPv4 address. Having 128 bits vastly increases the number of available addresses from the 4 billion found in an IPv4 to 3.4 x10^38.
2. The subnet mask of an IP address does which of the following?
b. Defines network and host portions of an IP address
The subnet mask defines which portions of an IP address are network portions and which ones are host portions by using a 32- bit number in decimal format. The binary 1’s and 0’s determine which are hosts and which are network.
4. Which of the following is a private IP address and can’t be routed across the Internet?
b. 172.19.243.254
This address falls within the Class B category for network addresses. There are 16 Class B network addresses. The addresses range from 172.16 to 172.31
11. When using TCP/IP, which of the following must computers on the same logical network have in common? (Choose all that apply.)
a. Network ID
c. Subnet mask
14. How many bits must be reallocated from host ID to network ID to create 16 subnets?
4 bits must be reallocated to create 16 subnets
15. For the Class C network address 192.168.10.0, which of the following subnet masks
provides 32 subnets?
b. 255.255.255.248
16. How many host bits are necessary to assign addresses to 62 hosts?
a. 6
20. Which of the following is a reason to subnet? (Choose all that apply.)
a. Networks can be divided into logical groups.
c. Subnetting can decrease the size of broadcast domains.
Through subnetting companies can divide networks into logical groups. This gives the company more control over their resources. Subnetting can also make companies more efficient by decreasing the size of broadcast domains which in turn will allow the network to flow more freely.