Practice Quiz

CompTIA Network+ Exam Review

Category - Networking

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Which of the following fields of the IP datagram identifies the message to which a datagram belongs to ( It also enables the receiving node to reassemble fragmented messages)?
  1. Fragment Offset
  2. Flags
  3. Internet Header Length
  4. Identification
Explanation
Answer - D - The identification field contains a 16-bit value that is common to each of the fragments belonging to a particular message.

Key Takeaway: This field specifies a number allocated to each fragment in order to enable reassembling of datagrams at the receiving end. Internet Header Length (IHL) specifies the length of the IP header in 32-bit words. Fragment Offset specifies the offset-or position-in the overall message where the data in this fragment goes. The Flags field is used to manage fragmentation.
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