What is the primary function of the subnet mask in IP addressing?

Practice Questions

Q1
What is the primary function of the subnet mask in IP addressing?
  1. To identify the network and host portions of an IP address
  2. To encrypt data packets
  3. To assign IP addresses dynamically
  4. To route packets between networks

Questions & Step-by-Step Solutions

What is the primary function of the subnet mask in IP addressing?
  • Step 1: Understand that an IP address is like a home address for a device on a network.
  • Step 2: Know that an IP address has two main parts: the network part and the host part.
  • Step 3: The network part identifies the specific network the device belongs to.
  • Step 4: The host part identifies the specific device within that network.
  • Step 5: The subnet mask is a special number that helps separate the network part from the host part of the IP address.
  • Step 6: When you apply the subnet mask to an IP address, it tells you which bits belong to the network and which bits belong to the host.
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