About Subnet quiz
Conversely, the number of available IP addresses per network increases as the subnet mask gets smaller (i.e., more bits for the host ID). But the number of available networks decreases.It’s important to choose the right subnet mask for a network to ensure that there are enough IP addresses for the devices on the network. One must choose the appropriate subnet mask for a network to ensure that there are enough IP addresses for the devices on the network without wasting any IP addresses.3.1. Determining the Subnet ID and Host IDNow that we understand subnet masks let’s figure out the subnet ID and host ID from an IP address using the subnet mask. Suppose we have a Class C IP address 192.168.1.50 with a subnet mask of 255.255.255.0.First, we need to convert the IP address and subnet mask to binary. The following figure shows a binary representation of 192.168.1.50 with a subnet mask of 255.255.255.0:Next, we perform a bitwise AND operation between the IP address and the subnet mask:Therefore, the resulting binary number is the subnet ID (11000000.10101000.00000001.00000000), which we need to convert back to decimal form. Thus 192.168.1.0 is the subnet ID and the remaining bits in the IP address (00110010) are the host ID, which we also need to convert back to decimal form: Host ID: 50. Therefore, the IP address 192.168.1.50 belongs to the network 192.168.1.0 with a host ID of 50.Let’s have a look at more examples of this.Example 1: IP address: 10.0.0.55 and Subnet Mask:255.255.255.0Therefore: Subnet
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Subnetting work?Subnetting divides an IP address into two distinct parts: the network prefix and the host identifier. The network prefix identifies the specific subnet within a larger network, while the host identifier indicates the individual device within that subnet. This division simplifies IP management, improving routing and data transfer within networks.To implement subnetting effectively, one must understand the concept of subnet masks. A subnet mask is a 32-bit number that helps determine which portion of an IP address is designated for the network and which part is allocated to the host. By using a subnet mask, network administrators can control the size of a subnet and define how many devices can connect to it. For example, in the IP address 192.168.1.1 with a subnet mask of 255.255.255.0, the first 24 bits (the network portion) are used to identify the subnet, while the remaining 8 bits (the host portion) are used for individual devices within that subnet.How to subnet an IP address effectivelyHere’s a step-by-step guide:Identify the network size:Determine the number of hosts and devices that will be part of the network – this is crucial for understanding how large your subnets need to be. Having a clear idea of the number of devices that will connect to the network, enables administrators to make informed decisions about subnet allocation.Choose the subnet mask:Based on the required size, select an appropriate subnet mask. For instance, a /24 subnet mask allows for 256 addresses (including the network and broadcast addresses), making it suitable for networks with up to 254 usable IP addresses. Choosing the right subnet mask is essential to ensure that there are enough addresses available for all devices while minimizing wasted addresses.Apply the subnet mask:Divide the IP address range into subnets by applying the chosen subnet mask. This process involves configuring routers
