IoT Basic Concepts Quiz
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Questions and Answers

What does the physical (PHY) layer (Layer 1 of OSI) govern?

  • End-to-end communication
  • How each device is physically connected to the network with hardware (correct)
  • Application-level messaging
  • Logical addressing

    • What do protocols at the link layer (Layer 2 of OSI) focus on?

  • Reliability and congestion avoidance
  • End-to-end communication
  • Application-level messaging
  • Physical addressing and how switches deliver frames to devices on the network (correct)

    • Which layer of OSI maps to the Internet Layer?

  • Layer 1 of OSI
  • Layers 5, 6, and 7 in OSI
  • Layer 3 (network layer) (correct)
  • Layer 4 in OSI

    • What does the transport layer (Layer 4 in OSI) focus on?

    <p>End-to-end communication and reliability</p> Signup and view all the answers

    What is the application layer (Layers 5, 6, and 7 in OSI) concerned with?

    <p>Application-level messaging</p> Signup and view all the answers

    What is the purpose of the SLS Handshake step 3?

    <p>To prove physical access to the bridge</p> Signup and view all the answers

    What does the server response header 'Access-Control-Allow-Origin: *' indicate?

    <p>Unrestricted access to the server from any origin</p> Signup and view all the answers

    What is the purpose of the website sending a 'Setup Complete' message to the backend in SLS Handshake?

    <p>To complete the user registration process</p> Signup and view all the answers

    What is the role of Philips Cloud (Hue) in the Smart Lighting System?

    <p>Serving as a bridge between the internet and the system</p> Signup and view all the answers

    What does the bridge POST request to dcs.cb.philips.com indicate in the SLS Handshake?

    <p>Proving physical access to the bridge</p> Signup and view all the answers

    What vulnerability in the Smart Lighting System handshake process allows an attacker to capture SLS information?

    <p>The server response header 'Access-Control-Allow-Origin: *'</p> Signup and view all the answers

    In the Smart Lighting System handshake, what is the purpose of Step 3?

    <p>Proving physical access to the bridge</p> Signup and view all the answers

    What is the role of the Philips Bridge in the Smart Lighting System?

    <p>Establishing a connection with the Philips Cloud (Hue)</p> Signup and view all the answers

    What does the server response header 'WWW-Authenticate : CBAuth' indicate in the Smart Lighting System handshake?

    <p>Authentication method used by the server</p> Signup and view all the answers

    What does the bridge POST request to dcs.cb.philips.com indicate in the Smart Lighting System handshake?

    <p>Establishing a connection with the Philips Cloud (Hue)</p> Signup and view all the answers

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