The basic network protocol used to create and route data packets between computers is which?

• A. HL7
• B. TCP/IP
• C. URL
• D. XML

Answer: (B)

The function being tested is how data moves across networks. The TCP/IP protocol suite is what governs how data is created into packets, addressed, transmitted, routed, and reassembled at the destination. In this stack, IP is responsible for addressing packets and figuring out how to get them from sender to receiver across multiple networks, while TCP provides reliable delivery by establishing connections, segmenting data, and ensuring that packets arrive in order without errors. Together, they make possible the end-to-end communication that underpins most computer networks and the Internet.

The other options aren’t about routing or packet creation in networks: HL7 is a health information exchange standard, not a transport protocol; a URL is a locator used to identify a resource on the web; XML is a data formatting language.