If a live feed transmitted using UDP shows color glitches because packets are lost or dropped, which statement explains this behavior?

• A. UDP provides error checking or correction.
• B. UDP uses sequence numbers to ensure order.
• C. UDP does not guarantee delivery.
• D. UDP does not provide error checking or retransmission.

Answer: (D)

The main idea is that UDP is a best-effort, connectionless protocol that does not guarantee delivery or perform automatic retransmission. In a live video feed, if some UDP packets are lost, the data for those portions of the stream never arrives again unless the application itself handles recovery. Because there’s no built-in mechanism to resend lost packets, the viewer ends up seeing missing data within frames, which shows up as color glitches or artifacts. Streaming systems often rely on error concealment or higher-level recovery methods for smoother playback, or choose protocols that provide reliability when needed. It’s true that UDP has a checksum for detecting corruption, but it doesn’t offer built-in error correction or retransmission, which is why the lack of guaranteed delivery explains the glitches.