A subnetwork, also known as a subnet, is a smaller network that is created by dividing a larger network into smaller segments. The idea behind subnetworking is to divide a network into smaller, more manageable pieces, which can help to increase network efficiency and security.
An example of subnetworking is in a home network where multiple devices are connected to a single router. The router creates a local network that allows each device to communicate with each other. However, if an individual wants to divide the network into smaller groups, they can use subnetting. For instance, the individual can create two subnetworks, one for the smart home devices such as security cameras and thermostats, and the other one for personal devices such as laptops and smartphones. This subnetworking ensures that the smart home devices do not have access to personal devices and vice versa, enhancing security.
Another example is in a corporate setting where a single network is divided into subnetworks for different departments. For example, HR staff may have their own subnetwork that is separate from the finance department’s subnetwork, again enhancing security and data privacy.
A subnet is a smaller network contained within a larger network.
Its purpose is to divide the larger network into smaller, more manageable pieces.
Each subnet has its own unique address range and can be controlled independently.
Subnetting allows for more efficient use of IP addresses and reduces network congestion.
It enhances security by isolating portions of a network and controlling access to them.
Subnets can be created using various methods, including fixed subnetting, variable length subnetting, and classless inter-domain routing.
To implement subnets, network administrators must configure routers and switches to recognize and route traffic to the correct subnet.
Subnet masks are used to identify which portion of an IP address represents the network and which represents the host.
Subnetting can be applied to both IPv4 and IPv6 addresses.
Proper planning and design of subnets is essential for optimal network performance and scalability.
ing:
What is the maximum number of subnets that can be created from a Class C network with a subnet mask of 255.255.255.192?
Answer: 4 subnets
What is the difference between subnet mask and default subnet mask?
Answer: Subnet mask is used to divide a network into smaller subnets, while default subnet mask is the subnet mask used by default based on the network class.
How does subnetting improve network performance?
Answer: Subnetting reduces the size of broadcast domains, which reduces network traffic and improves the overall performance of the network.
What is the purpose of a subnet mask?
Answer: The subnet mask is used to determine the network address and the host address within a network.
How can you determine the valid host range in a subnet?
Answer: The valid host range in a subnet can be determined by subtracting the subnet mask from the network address, and then adding one to the result for the lower bound and subtracting one from the broadcast address for the upper bound.