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Which is the correct expression for the length of UDP datagram?
- a)UDP length = IP length – IP header’s length
- b)UDP length = UDP length – UDP header’s length
- c)UDP length = IP length + IP header’s length
- d)UDP length = UDP length + UDP header’s length
Correct answer is option 'A'. Can you explain this answer?
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Which is the correct expression for the length of UDP datagram?a)UDP l...
A user datagram is encapsulated in an IP datagram. There is a field in the IP header that defines the total length of the IP packet. There is another field in the IP header that defines the length of the header. So if we subtract the length of the IP header that is encapsulated in the IP packet, we get the length of UDP datagram.
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Which is the correct expression for the length of UDP datagram?a)UDP l...
Explanation:
UDP Datagram Length Calculation:
- The correct expression for the length of a UDP datagram is UDP length = IP length – IP header’s length.
- This calculation is based on the structure of the IP and UDP headers in a network packet.
IP Header:
- The IP header contains information about the source and destination IP addresses, protocol being used (UDP in this case), and the total length of the IP packet.
UDP Header:
- The UDP header contains information about the source and destination ports, length of the UDP datagram, and a checksum for error detection.
Explanation of the Calculation:
- When calculating the length of the UDP datagram, we subtract the length of the IP header from the total length of the IP packet.
- This is because the IP length includes both the IP header and the UDP datagram, so subtracting the IP header’s length gives us the length of the UDP datagram.
Example:
- If the total length of the IP packet is 100 bytes and the IP header length is 20 bytes, then the length of the UDP datagram would be 100 - 20 = 80 bytes.
Conclusion:
- Understanding how to calculate the length of a UDP datagram is important for network engineers and developers working with UDP-based applications. By following the correct expression UDP length = IP length – IP header’s length, they can accurately determine the size of the UDP data being transmitted over the network.
UDP Datagram Length Calculation:
- The correct expression for the length of a UDP datagram is UDP length = IP length – IP header’s length.
- This calculation is based on the structure of the IP and UDP headers in a network packet.
IP Header:
- The IP header contains information about the source and destination IP addresses, protocol being used (UDP in this case), and the total length of the IP packet.
UDP Header:
- The UDP header contains information about the source and destination ports, length of the UDP datagram, and a checksum for error detection.
Explanation of the Calculation:
- When calculating the length of the UDP datagram, we subtract the length of the IP header from the total length of the IP packet.
- This is because the IP length includes both the IP header and the UDP datagram, so subtracting the IP header’s length gives us the length of the UDP datagram.
Example:
- If the total length of the IP packet is 100 bytes and the IP header length is 20 bytes, then the length of the UDP datagram would be 100 - 20 = 80 bytes.
Conclusion:
- Understanding how to calculate the length of a UDP datagram is important for network engineers and developers working with UDP-based applications. By following the correct expression UDP length = IP length – IP header’s length, they can accurately determine the size of the UDP data being transmitted over the network.
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Which is the correct expression for the length of UDP datagram?a)UDP length = IP length – IP header’s lengthb)UDP length = UDP length – UDP header’s lengthc)UDP length = IP length + IP header’s lengthd)UDP length = UDP length + UDP header’s lengthCorrect answer is option 'A'. Can you explain this answer? for Computer Science Engineering (CSE) 2025 is part of Computer Science Engineering (CSE) preparation. The Question and answers have been prepared according to the Computer Science Engineering (CSE) exam syllabus. Information about Which is the correct expression for the length of UDP datagram?a)UDP length = IP length – IP header’s lengthb)UDP length = UDP length – UDP header’s lengthc)UDP length = IP length + IP header’s lengthd)UDP length = UDP length + UDP header’s lengthCorrect answer is option 'A'. Can you explain this answer? covers all topics & solutions for Computer Science Engineering (CSE) 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Which is the correct expression for the length of UDP datagram?a)UDP length = IP length – IP header’s lengthb)UDP length = UDP length – UDP header’s lengthc)UDP length = IP length + IP header’s lengthd)UDP length = UDP length + UDP header’s lengthCorrect answer is option 'A'. Can you explain this answer?.
Which is the correct expression for the length of UDP datagram?a)UDP length = IP length – IP header’s lengthb)UDP length = UDP length – UDP header’s lengthc)UDP length = IP length + IP header’s lengthd)UDP length = UDP length + UDP header’s lengthCorrect answer is option 'A'. Can you explain this answer? for Computer Science Engineering (CSE) 2025 is part of Computer Science Engineering (CSE) preparation. The Question and answers have been prepared according to the Computer Science Engineering (CSE) exam syllabus. Information about Which is the correct expression for the length of UDP datagram?a)UDP length = IP length – IP header’s lengthb)UDP length = UDP length – UDP header’s lengthc)UDP length = IP length + IP header’s lengthd)UDP length = UDP length + UDP header’s lengthCorrect answer is option 'A'. Can you explain this answer? covers all topics & solutions for Computer Science Engineering (CSE) 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Which is the correct expression for the length of UDP datagram?a)UDP length = IP length – IP header’s lengthb)UDP length = UDP length – UDP header’s lengthc)UDP length = IP length + IP header’s lengthd)UDP length = UDP length + UDP header’s lengthCorrect answer is option 'A'. Can you explain this answer?.
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