COMPUTER NETWORKING

TRANSPORT LAYER

USER DATAGRAM PROTOCOL UDP

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Which of the following are the fields in a UDP header?
A
The IP address
B
The Physical address
C
The Source port number
D
Error checking
Explanation: 

Detailed explanation-1: -They are the following: source port number, which is the number of the sender; destination port number, the port to which the datagram is addressed; length, the length in bytes of the UDP header and any encapsulated data; and.

Detailed explanation-2: -The fields in a UDP header are: Source port – The port of the device sending the data. This field can be set to zero if the destination computer doesn’t need to reply to the sender. Destination port – The port of the device receiving the data. UDP port numbers can be between 0 and 65, 535.

Detailed explanation-3: -A UDP header is quite small when compared to a TCP header; it has just four common fields: Source Port, Destination Port, Packet Length, and Checksum. Refer to the UDP header shown here: Source port: Port number used by the sending side to receive any replies if needed.

Detailed explanation-4: -The UDP pseudo header consists of the Source IP Address field, the Destination IP Address field, an Unused field set to 0, the Protocol field for UDP (17 or 0x11), and the UDP Length field.

There is 1 question to complete.