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What is the primary purpose of the Physical layer in the OSI model?

Practice Questions

Q1
What is the primary purpose of the Physical layer in the OSI model?
  1. Data encryption
  2. Signal transmission
  3. Session establishment
  4. Data compression

Questions & Step-by-Step Solutions

What is the primary purpose of the Physical layer in the OSI model?
  • Step 1: Understand that the OSI model has 7 layers, and the Physical layer is the first one.
  • Step 2: Know that the Physical layer is responsible for the actual transmission of data.
  • Step 3: Realize that it deals with raw bits, which are the basic units of data (0s and 1s).
  • Step 4: Learn that the Physical layer sends these bits over a physical medium, like cables or wireless signals.
  • Step 5: Conclude that the main job of the Physical layer is to ensure that data can travel from one device to another in its most basic form.
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