ISC2 Certified in Cybersecurity (CC)Network SecurityMedium
A company is upgrading its network infrastructure and is considering using a protocol that ensures reliable, ordered, and error-checked delivery of data streams. Which of the following core network protocols best fits this description?
- ATCP (Transmission Control Protocol)
- BICMP (Internet Control Message Protocol)
- CUDP (User Datagram Protocol)
- DARP (Address Resolution Protocol)
Show answer & explanationAnswer & explanation
Correct answer: A. TCP (Transmission Control Protocol)
TCP is a connection-oriented protocol that provides reliable, ordered, and error-checked delivery of data, making it suitable for applications requiring high data integrity.
Why the other options are wrong
- B. ICMP is used for network diagnostics and error reporting, not for general data stream delivery.
- C. UDP is a connectionless protocol that offers speed over reliability, without guaranteed delivery or ordering.
- D. ARP resolves IP addresses to MAC addresses within a local network segment.
TCP (Transmission Control Protocol)
A core protocol of the internet protocol suite that provides reliable, ordered, and error-checked delivery of a stream of octets between applications running on hosts communicating via an IP network.
- Connection-oriented: establishes a connection before data transfer.
- Ensures data integrity through acknowledgments and retransmissions.
- Manages flow control and congestion control.
Memory trick: TCP Cares, UDP Dares, ICMP Informs, ARP Finds Addresses.