Discussion
Parity in an ARINC 429 word will detect any corruption. Is this correct?
Answer: A
Correct answer: No, an even number of bit errors passes undetected
Parity makes the count of ones odd, so two errors - or four, or six - restore the original parity and the word passes the check.
The limitation matters because a burst of noise typically corrupts several adjacent bits at once, which is exactly the even case. The label being intact makes no difference, since parity is computed over the whole word. Parity is not optional in ARINC 429; it is simply weak, and the standard relies on rapid retransmission to make up for it.
No comment is present. Be the first to comment.
Loading…
Post your comment
Please log in or register to post a comment.
Examination Categories
- SSC Exams
- Banking Exams
- Teaching Exams
- Civil Services Exams
- Railways Exams
- Engineering Recruitment Exams
- Defence Exams
- State Government Exams
- Police Exams
- Insurance Exams
- Nursing Exams
- Other Government Exams
- NRA CET
- PG Entrance Exams
- Campus Placement
- MBA Entrance Exams
- CUET and UG Entrance
- Judiciary Exams
- Regulatory Body Exams
- Software Development