What does the Don't Fragment flag in the Flags field of an IPv4 header indicate? A. Whether fragmentation is allowed B. Whether fragmentation is not allowed C. The relative position of a fragment in an original packet D. Whether there are more segments following the segment
Question
What does the Don't Fragment flag in the Flags field of an IPv4 header indicate? A. Whether fragmentation is allowed B. Whether fragmentation is not allowed C. The relative position of a fragment in an original packet D. Whether there are more segments following the segment
Solution
The Don't Fragment (DF) flag in the Flags field of an IPv4 header indicates whether fragmentation is not allowed. When the DF flag is set to 1, it means that the packet cannot be fragmented. This is used when the sender wants to ensure that the packet arrives at the destination as a whole and not in fragmented pieces. If a packet needs to be fragmented to reach its destination (due to a link in the path having a smaller Maximum Transmission Unit), and the DF flag is set, the packet will be dropped, and an ICMP error message will be sent back to the sender. So, the correct answer is B. Whether fragmentation is not allowed.
Similar Questions
An IP packet arrives at the final destination with the D flag set as 1. Which of the following statement is true about the packet? a. The packet has not been fragmented. b. The packet has been fragmented and it is the first fragment. c. The packet has been fragmented and it is the last fragment. d. None of these.
For reassembling the fragmented packets at the final destination, which of the following header field(s) is (are) used by IP? a. Fragment offset. b. Flags. C. Header checksum. d. HLEN. e. Identification.
What is the value of the "Don't Fragment" field in a data segment? A. 0 B. 12 C. 1 D. True
What is the purpose of the Fragment Offset field? A. To indicate the relative position of a fragment in an original packet. B. To help the receiver assemble packets. C. To specify the TTL of a packet. D. To indicate the amount of routers a packet can pass through.
Which three IPv4 header fields have no equivalent in an IPv6 header? (Choose three.)identificationversionTTLflagprotocolfragment offset
Upgrade your grade with Knowee
Get personalized homework help. Review tough concepts in more detail, or go deeper into your topic by exploring other relevant questions.