Non-information bits like start and end indicators for characters and packets are collectively called what?

• A. Overhead Bits
• B. Information Bits
• C. Status Bits
• D. Parity Bits

Answer: (A)

Bits that don’t carry user data but help organize and control the transmission are overhead bits. Start and end indicators for characters and packets fall into this category because they frame the data, tell the receiver where a unit begins and ends, and help maintain synchronization. They don’t convey payload, which is why they aren’t information bits. Parity bits are specific error-detection bits inside frames, not the general framing helpers, and status bits reflect conditions or states rather than the basic framing function. So the term that best fits these indicators is overhead bits.