Which of the following statements is true?

Which of the following statements is true?

Question 1 of 29218XaawCgrjUAKk9FlyopAG

Which of the following statements is true?

Question 1 of 29218

Q

Which of the following statements is true?

🔍 Key Concepts

• SITOR modes: ARQ vs FEC and what each mode uses control/idle/phasing signals for • Specific 7-bit patterns for Idle Signals (a and b), Signal Repetition character, and Control Signal 1 in SITOR • How FEC phasing signals are formed and which characters they are associated with

💭 Think About

• Compare each 7-bit code in the options with the known SITOR character assignments: which ones are actually idle, which are control, and which are phasing? • Ask yourself: in SITOR-FEC, do the phasing signals use idle characters or special control characters, and how many distinct phasing signals are there? • For SITOR-ARQ versus SITOR-B (FEC), which specific signal is used to handle timing/displacement, and is that tied to Control Signal 1 or something else?

✅ Before You Answer

• Verify the exact 7-bit pattern for the Signal Repetition character and confirm which mode (ARQ or FEC) it belongs to • Confirm which 7-bit patterns correspond to Idle Signal (a) and Idle Signal (b) and whether they are actually used as FEC phasing signals • Check how Control Signal 1 (0101100) is defined in the SITOR standard: is it truly linked to determining time displacement in SITOR-B, or does it serve a different function?