Final answer:
The question is about determining the percentage of overhead and application data in a datagram. To answer this definitively, one would need to know the total size of the datagram and the size of the overhead. The options are theoretical scenarios, and without more information, the exact percentage cannot be determined.
Step-by-step explanation:
The question relates to the composition of a datagram in terms of overhead and application data. The percentages given in options a) through d) are hypothetical scenarios presenting different ratios between overhead and application data. It is important to note that the actual percentage will vary depending on the specific protocol and network configuration. The overhead includes all additional information such as headers and footers that are necessary for the transmission and handling of the payload (the application data) across a network. To compute the percentage, you must know the total size of the datagram and how much of that size is taken up by overhead versus application data.
For example, let's say a datagram has a total size of 100 bytes and the overhead (headers, footers, etc.) takes up 30 bytes. The overhead would be 30% of the datagram, and the application data would represent the remaining 70%, making option a) the correct choice in this scenario. However, without specific details about the datagram in question, it is not possible to determine the exact percentage of overhead and application data. The options provided suggest a theoretical scenario, a common approach to understanding network efficiency and performance characteristics.