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At which Open Systems Interconnection (OSI) layer does User Datagram Protocol (UDP) function?
Suggested Answer: C
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12 comments · newest first
SH
Sheldon
27 days ago
Definitely Layer 4. It’s all about connectionless communication.
CA
Cassie
1 month ago
Agreed! Layer 4 makes sense. It handles data transport.
LE
Leoma
1 month ago
I think it's Layer 4. UDP is a transport protocol.
GI
Gilberto
1 month ago
I thought it was Layer 3 too, this is surprising!
RU
Ruby
2 months ago
Definitely Layer 4, no doubt about it!
AM
Amie
2 months ago
Wait, isn't UDP also related to Layer 3 somehow?
AS
Ashley
2 months ago
Totally agree, it's all about that Transport layer!
AN
An
2 months ago
UDP operates at Layer 4, the Transport layer.
TO
Tommy
2 months ago
I’m pretty confident it’s Layer 4, but I wonder if they could trick us with a question about other protocols.
DO
Dorian
2 months ago
Layer 4 sounds right for UDP, but I keep mixing it up with Layer 3 sometimes.
MA
Maryann
3 months ago
I remember practicing a question about TCP and UDP, and I think both are at Layer 4. So, I’d go with C.
GO
Goldie
3 months ago
I think UDP operates at Layer 4, but I’m not entirely sure if it’s the same for all transport protocols.