Question: 1. Briefly explain bus, star, ring, mesh and tree network topologies with suitable diagram. 2. What is the OSI reference model in computer networks? Briefly

1. Briefly explain bus, star, ring, mesh and tree network topologies

1. Briefly explain bus, star, ring, mesh and tree network topologies with suitable diagram. 2. What is the OSI reference model in computer networks? Briefly discuss all seven layers of the OSI reference model. 3. Explain Hyper Text Transfer Protocol in detail. 4. What are the three major components in electronic mail? Explain the scenario: Alice sends message to Bob in electronic mail by using suitable diagram

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