Podcast
Questions and Answers
What indicates that a fragment is the final piece of data in the reassembly process?
What indicates that a fragment is the final piece of data in the reassembly process?
- The fragment has a size equal to the maximum MTU.
- The fragment has the flag bit set to (0) in the header. (correct)
- The fragment is the first one received by the destination host.
- The fragment carries the flag bit set to (1) in the header.
Why should only the final destination host reassemble fragments?
Why should only the final destination host reassemble fragments?
- Other hosts may modify the fragments during transmission.
- Other hosts do not carry the necessary processing resources.
- Fragmentation is only allowed at the originating source.
- Reassembly requires knowledge of all fragments which only the destination has. (correct)
What happens when a fragment reaches a network with a smaller MTU?
What happens when a fragment reaches a network with a smaller MTU?
- It can cause fragmentation of the fragment. (correct)
- The fragment is discarded by the receiving node.
- No action is taken as MTU size does not affect fragments.
- The fragment will be sent directly to the final destination unmodified.
What does the term 'fragmenting a fragment' refer to?
What does the term 'fragmenting a fragment' refer to?
What role does reassembly play in the context of data fragments?
What role does reassembly play in the context of data fragments?
Flashcards
Datagram Reassembly
Datagram Reassembly
The process of combining fragmented datagrams back into the original datagram.
Fragment Flag Bit
Fragment Flag Bit
A flag bit in the header of a fragment indicates whether it's the last piece of the original datagram.
Why only Destination Reassembles
Why only Destination Reassembles
Only the final destination host should reassemble fragments because it's responsible for the complete datagram.
Fragmenting a Fragment
Fragmenting a Fragment
Signup and view all the flashcards
Fragmenting a Fragment - Is it possible?
Fragmenting a Fragment - Is it possible?
Signup and view all the flashcards
Study Notes
Datagram Reassembly
- Datagram reassembly reconstructs the original datagram from its fragmented parts.
- The fragment containing the last piece of data has its flag bit set to 0 in the header, signaling the receiver about a complete arrival.
- Only the final destination host reassembles fragments. This prevents intermediate networks from handling the complex process unnecessarily.
Fragment Fragmentation
- If a fragment enters a network with smaller Maximum Transmission Unit (MTU) requirements, further fragmentation might be necessary.
- It's possible to fragment a fragment, meaning one fragment can be broken down into smaller fragments for transmission.
Studying That Suits You
Use AI to generate personalized quizzes and flashcards to suit your learning preferences.
