IOT & M2M Protocols: Protocol Functions and OSI Model
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Questions and Answers

What is the purpose of encapsulation in protocols?

  • To reduce duplication of effort (correct)
  • To ensure ordered delivery
  • To provide address resolution
  • To control the flow of data

    • Which layer of the OSI model is responsible for hop-to-hop delivery?

  • Network layer (correct)
  • Session layer
  • Presentation layer
  • Physical layer

    • How does the TCP/IP protocol suite differ from the OSI model in terms of layers?

  • TCP/IP has fewer layers than the OSI model (correct)
  • TCP/IP and OSI models have completely different layers
  • TCP/IP and OSI models have the same number of layers
  • TCP/IP has more layers than the OSI model

    • What is the main difference between the transport layer and the network layer in the OSI model?

    <p>The transport layer provides hop-to-hop delivery, while the network layer provides end-to-end delivery</p> Signup and view all the answers

    Which functions form the basis of all protocols?

    <p>Encapsulation and ordered delivery</p> Signup and view all the answers

    Why do some protocols not have all protocol functions?

    <p>To reduce duplication of effort</p> Signup and view all the answers

    What type of addresses are used in an internet employing the TCP/IP protocols?

    <p>Physical, logical, port, and specific</p> Signup and view all the answers

    What does the Logical Address represent in TCP/IP?

    <p>Generated by the CPU while the program is running</p> Signup and view all the answers

    How are most local-area networks' physical addresses written?

    <p>As 12 hexadecimal digits separated by a colon or dash</p> Signup and view all the answers

    What is used to find the physical address of the next hop in the network layer?

    <p>Routing table</p> Signup and view all the answers

    What protocol finds the physical address of a router that corresponds to its logical address?

    <p>Address Resolution Protocol (ARP)</p> Signup and view all the answers

    What does the Logical Address represent in TCP/IP?

    <p>Generated by the CPU while the program is running</p> Signup and view all the answers

    What do most local-area networks use as a physical address format?

    <p>48-bits (6-byte) physical address written as 12 hexadecimal digits</p> Signup and view all the answers

    What represents the Logical Address in computer networking?

    <p>'Virtual' generated by CPU during program execution</p> Signup and view all the answers

    Which protocol is used to find the physical address of a router corresponding to its logical address?

    <p>'Address Resolution Protocol (ARP)'</p> Signup and view all the answers

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