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IP Address

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Intro to Business

Definition

An IP address is a unique numerical identifier assigned to each device connected to a computer network, such as the internet or a local area network (LAN). It serves as the address that allows devices to communicate with each other and access online resources.

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5 Must Know Facts For Your Next Test

  1. IP addresses are essential for identifying and locating devices on a network, enabling communication and data exchange between them.
  2. IP addresses can be either static (fixed) or dynamic (assigned automatically by a DHCP server) depending on the network configuration.
  3. IPv4 addresses are typically represented in dotted-decimal notation, such as 192.168.1.100, while IPv6 addresses use a hexadecimal format, such as 2001:0db8:85a3:0000:0000:8a2e:0370:7334.
  4. The subnet mask is used to determine the network portion and the host portion of an IP address, allowing for the creation of logical subnets within a larger network.
  5. IP addresses are essential for network routing, as they provide a standardized way for devices to identify and communicate with each other over the internet or a local network.

Review Questions

  • Explain the purpose and importance of IP addresses in computer networks.
    • IP addresses are the fundamental identifiers that allow devices to communicate and exchange data within a computer network. They provide a standardized way for devices to locate and connect with each other, enabling the routing of information across the network. IP addresses are essential for network functionality, as they allow devices to send and receive data, access online resources, and participate in network-based applications and services.
  • Describe the differences between IPv4 and IPv6 and how they impact network design and implementation.
    • IPv4 and IPv6 are the two primary versions of the Internet Protocol. IPv4 uses a 32-bit address space, which limits the number of unique IP addresses to approximately 4.3 billion. This has led to the depletion of available IPv4 addresses, necessitating the development of IPv6. IPv6 addresses this issue by using a 128-bit address space, providing a virtually unlimited number of unique IP addresses. The transition from IPv4 to IPv6 has significant implications for network design and implementation, as it requires updates to network infrastructure, devices, and software to support the new protocol and its expanded addressing capabilities.
  • Analyze the role of subnet masks in IP address management and network segmentation.
    • Subnet masks are used to divide an IP address into network and host components, allowing for the creation of logical subnetworks within a larger network. By applying a subnet mask to an IP address, network administrators can determine the network portion and the host portion, enabling the efficient allocation and management of IP addresses. Subnet masks are essential for network segmentation, as they allow for the division of a larger network into smaller, more manageable subnets. This segmentation can improve network performance, security, and overall efficiency by isolating traffic and controlling access between different parts of the network.
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