noun
unnumbered responses
Technical computing term referring to responses that are not assigned sequence numbers, often in network protocols.
このプロトコルでは、非番号制レスポンスが使われることがある。
In this protocol, unnumbered responses are sometimes used.
Compound of 非 (non-), 番号制 (numbering system), and レスポンス (response). A technical term likely coined in Japanese computing contexts.