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This chapter is from the book

This chapter is from the book

Review Questions

  1. Which Network layer protocol is responsible for fragmentation and reassembly of datagrams?

  2. A user would like to test connectivity between two remote hosts, so the user executes Ping. Which two ICMP message types are used to accomplish this test?

  3. What does IP do when it receives data from UDP or TCP?

  4. How many minimum bytes are there in an IP header and what fields are contained within that header?

  5. What are the ToS bits within the IP header used for?

  6. What two field values does the destination host use to ensure that it reassembles datagrams in the correct order?

  7. What type of ICMP message is Destination Unreachable, and what does it mean if you receive a Destination Unreachable ICMP message?

  8. What does a 0 (zero) error code mean when you have a type 3, Destination Unreachable ICMP message?

  9. What does a 4 error code mean when you have a type 3, Destination Unreachable ICMP message?

  10. What type of ICMP message is Time Exceeded and what does it mean if you receive a Time Exceeded ICMP message?

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