Lesson 5—Exercise 1 Key

List the seven layers of the OSI model.

·       Physical

·       Data-Link

·       Network

·       Transport

·       Session

·       Presentation

·       Application

List the three IP address ranges that have been reserved as private IP address ranges.

10.0.0.0 through 10.255.255.255

172.16.0.0 through 172.31.255.255

192.168.0.0 through 192.168.255.255

List the three types of address supported by IPv4 and IPv6.

IPv4: unicast, broadcast, multicast

IPv6: unicast, anycast, multicast

In addition to address types, IPv6 also supports five scope types, which define the area in which the address must be unique. List the five scope types.

·       Node-local

·       Link-local

·       Site-local

·       Organization-local

·       Global

List and explain the three default network location options in Windows 7. Is there a fourth type of network connection? Please explain.

·       Home: Computer is connected to a home network and not directly connected to the Internet. Network discovery and file sharing are allowed.

·       Work: Computer is connected to a workgroup or small office and not directly connected to the Internet. File sharing and network discovery are permitted, but the computer cannot join a home group.

·       Public: Computer is connected to a network in a public place that is not considered secure. Network discovery and file sharing are disabled.

·       Domain: Indicates the computer is a member of an active directory domain. This option is configured automatically when a computer joins a domain.