Lab #7 – Assessment Worksheet
Layer 3 Networking, Backbones, WANs & Resiliency
1. Define the term “Subnetting”?
A subnet is an identifiably separate part of an organization's network. Typically, a subnet may represent all the machines at one geographic location, in one building, or on the same local area network (LAN). Having an organization's network divided into subnets allows it to be connected to the Internet with a single shared network address. Without subnets, an organization could get multiple connections to the Internet, one for each of its physically separate subnetworks, but this would require an unnecessary use of the limited number of network numbers the Internet has to assign. It would also require that Internet routing tables on gateways outside the organization would need to know about and have to manage routing that could and should be handled within an organization
2. Define the term “Supernetting”?
Supernetting is most often used to combine Class C network addresses and is the basis for most routing protocols currently used on the Internet. The original Internet Protocol (IP) defines IP addresses in four major classes of address structure, Classes A through D. Each class allocates one portion of the 32-bit Internet address format to a network address and the remaining portion to the specific host machines within the network. Using supernetting, the network address 192.168.2.0/24 and an adjacent address 192.168.3.0/24 can be merged into 192.168.2.0/23. The "23" at the end of the address says that the first 23 bits are the network part of the address, leaving the remaining nine bits for specific host addresses
3. Define the term Network Resiliency?
In computer networking: Resilience is the ability to provide and maintain an acceptable level of service in the face of faults and challenges to...