What does "READ BACK" indicate?

What does "READ BACK" indicate?

• A. The receiver should resend the entire transmission back to the sender.
• B. The sender is requesting encryption for the transmission.
• C. The transmission has been completed and acknowledged.
• D. The receiver is indicating a garbled transmission.

Answer: (A)

Read back means the receiver repeats the message they just heard back to the sender to verify accuracy. By echoing the exact transmission, the sender can confirm that every word and number was captured correctly and catch any errors caused by static, mishearing, or miskeying. It’s a verification step, not an instruction to encrypt, not a completion/acknowledgment, and not a garble indicator. So the receiver should read back the entire transmission to the sender for confirmation.

Read back means the receiver repeats the message they just heard back to the sender to verify accuracy. By echoing the exact transmission, the sender can confirm that every word and number was captured correctly and catch any errors caused by static, mishearing, or miskeying. It’s a verification step, not an instruction to encrypt, not a completion/acknowledgment, and not a garble indicator. So the receiver should read back the entire transmission to the sender for confirmation.