_____ refers to pieces of related information that are transferred through a network.

• A. Protocol
• B. Connection
• C. Packet
• D. Thread

Answer: (B)

Data transmitted over networks is sent in small units called packets. Each packet carries a portion of the overall message (the payload) along with header information that includes addresses, sequence data, and sometimes error-checking bits. This packetized approach, known as packet switching, lets networks route these pieces along different paths and then reassemble them at the destination. A protocol is the set of rules for communication, a connection is the actual link or session between endpoints, and a thread is a unit of execution within a program. Because of that, the description fits packets best.