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  1. Role of Subnet Mask - GeeksforGeeks

    Oct 15, 2025 · A subnet mask is a 32-bit number that divides an IP address into network ID and host ID. 1s represent the network portion. 0s represent the host portion. It helps determine whether two …

  2. What Is a Subnet Mask? Definition, Working, and Benefits

    Nov 3, 2022 · Subnet masks determine the network ID and host ID of an IP network upon subnetting. A subnet mask is defined as a 32-bit address that segregates an IP address into network bits that …

  3. What is a Subnet Mask? Examples, Uses and Benefits - Auvik

    Oct 23, 2024 · What is a subnet mask? A subnet mask is a 32-bit bitmask that splits an IP address into network and host sections to enable IPv4 network segmentation (a.k.a. subnetting). A lot is going on …

  4. What Is a Subnet Mask? Subnetting Basics Explained

    Feb 14, 2025 · A subnet mask is a 32-bit number that accompanies an IP address to distinguish its network portion from its host portion. It works in conjunction with IP addresses and often employs …

  5. What is a subnet? | How subnetting works | Cloudflare

    What is a subnet mask? A subnet mask is like an IP address, but for only internal usage within a network.

  6. What is a subnet mask? - TechTarget

    Apr 16, 2024 · What is a subnet mask? A subnet mask is a 32-bit binary number used in modern network addressing schemes to differentiate between a network's location and the specific location of …

  7. What is a subnet mask? How to find, configure, and calculate it

    Nov 14, 2025 · Subnet masks work alongside IP addresses to make this division clear. What is a subnet mask? A subnet mask is a 32-bit number that pairs with an IP address to show which part of the …

  8. What Is a Subnet Mask? - Computer Hope

    Jun 14, 2025 · Short for subnetwork mask, a subnet mask is data used for bitwise operations on a network of IP addresses that is divided into two or more groups. This process, known as subnetting, …

  9. What Is a Subnet Mask? - Coursera

    Oct 22, 2025 · A subnet mask separates large networks into smaller subnets. Every internet protocol (IP) address has a network prefix and a host number. In an IP address, a subnet mask is a number …

  10. Subnet - Wikipedia

    For IPv4, a network may also be characterized by its subnet mask or netmask, which is the bitmask that, when applied by a bitwise AND operation to any IP address in the network, yields the routing prefix. …