Ckkpnt Wk 4 Tcp/Ip Lan Plan

Ckkpnt wk 4

TCP/IP LAN Plan

Practice planning a network by completing questions 1, 2, 4, 11, 14, 15, 16, & 20 in Ch. 5 of Guide to Networking Essentials.

Select and explain each answer in a total of 200 to 300 words.

1. An IPv6 address is made up of how many bits?

a. 32

b. 48

c. 64

d. 128

e. 256

Internet Protocol version 6 is the fix for Internet Protocol version 4 which has a 32-bit address space, no built in security, a complicated set up, and no built in QoS. IPv6 has a 128-bit space with this length increases the number of possible address from about 4billion (IPv4) to 34 followed by 37 zero’s. IPv4 is running out of available address especially since most are wasted, but it is safe to say that with IPv6 that will not be a problem.

2. The subnet mask of an IP address does which of the following?

a. Provides encryption in a TCP/IP network

b. Defines network and host portions of an IP address

c. Allows automated IP address configuration

d. Allows users to use a computer’s name rather than its address

The subnet mask is used to determine which part of the address belongs to the network vs. the host. It is a 32-bit number in dotted decimal format made up of a string of 8 or more binary 1s followed by a string of 0s. The 1s in a subnet belong to the network address and the 0s stand for the corresponding bit in that belongs to the host.

3. Which of the following is a private IP address and can’t be routed across the Internet?

a. 192.156.90.100

b. 172.19.243.254

c. 11.200.99.180

d. 221.24.250.207

e. 12.12.12.12

Using a private IP address can improve network security and conserve public addressing space. An IP address is considered private if the IP number falls within one of the IP address ranges reserved for private uses by Internet standards groups, private IP address ranges are:

10.0.0.0 through 10.255.255.255

169.254.0.0 through 169.254.255.255

172.16.0.0 through 172.31.255.255...