CyberCertPrepSecurity FundamentalsNetworking FundamentalsEASYFree question
Which transport-layer protocol guarantees reliable, ordered delivery of data?
- A.TCP
- B.UDP
- C.ICMP
- D.ARP
Why A is correct
TCP (Transmission Control Protocol) provides reliable, ordered delivery by establishing a connection (three-way handshake), numbering packets, and requiring acknowledgments. If a packet is lost, TCP retransmits it, ensuring complete data delivery.
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