AP CSP Day 45: TCP vs UDP Protocols
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Big Idea 4
Day 45 Practice
Focus: TCP vs UDP Protocols
Practice Question
Which statement correctly describes the difference between TCP and UDP?
Why This Answer?
TCP (Transmission Control Protocol) ensures reliable, ordered delivery with confirmation. UDP (User Datagram Protocol) is faster but unreliable - packets may be lost or arrive out of order.
Why Not the Others?
A) TCP is slower because it verifies delivery.
B) Opposite - TCP guarantees order, UDP doesn't.
D) They are fundamentally different protocols.
Common Mistake
Watch Out!
Confusing which protocol prioritizes speed vs reliability. TCP = reliable, UDP = fast but unreliable.
AP Exam Tip
TCP for reliability (email, file transfer). UDP for speed (streaming, gaming). Know the tradeoff.