17 Questions
What is the value of the ID field in the IPv4 header for all fragments of a datagram?
The ID field carries the same value for all fragments
What must the Don't Fragment (DF) bit be set to in order for a datagram to be fragmented?
The DF bit must be set to 0
What is the value of the More Fragments (MF) bit in the last fragment of a datagram?
The MF bit is 0 in all fragments except the last fragment
What is the size of the data carried in the original (unfragmented) datagram?
4096 bytes
What is the value of the Total Length field in the first fragment of the datagram?
1500 bytes
What is the value of the Fragment Offset field in the second fragment of the datagram?
185
What is the total length field value for the third fragment?
1056
What is the value of the fragment offset field in the third fragment?
370
What is the size of the data contained in the first and second fragments?
2616 B
What is the Maximum Transmission Unit (MTU) value used in the fragmentation process?
1500
What is the size of the remaining data in the last fragment?
1136 B
What is the total length field value for the last fragment?
1136
What field in the IPv4 header does not engage in the fragmentation process?
Destination address
Fragmentation of a datagram is primarily due to limitations in which network element?
MTU
Under what condition can a datagram NOT be fragmented?
Don't fragment bit is set
Which field in the IPv4 header remains unaffected by routers?
Source address
If a datagram has a total length that exceeds the MTU, what operation typically occurs?
Fragmentation into smaller packets
Test your knowledge on IPv4 fragmentation rules including the ID field value, the 'don't fragment' bit, and the 'more fragment' bit. Understand how data is divided among fragments and the specifics of the original datagram.
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