In this PPT Vertical redundancy check Explain in easy way You can download this PPT and easily understand How we can detect error in Computer network

1. 1
Maharshi Dayanand Saraswati University
Department of computer science
Presentation Topic: Vertical Redundancy Check
Subject : Computer Networks
Class: MCA1
Presented by : Shivangi Tak Submitted to:
Praful Sir

2. Welcome to My
Today's
Presentation

3. 01
03 04
Error Detection
Methods
Performance of
VRC
Advantages &
Limitations
Agenda
02 Vertical
Redundancy Check

4. VRC

5. Vertical Redundancy Check
Vertical redundancy check (VRC) is an error-checking method.
The other name for VRC is Parity Check.
Parity bits are a simple form of error detecting code.
Parity Bit (PB)
• Even parity
• Odd Parity
In this method, a redundant bit also called
parity bit

7. It can detect single bit error.
It can detect burst error only if the number of error is odd.
Performance of VRC

8. Sender 1110000
1
Transmission
Error
10100001
Receiver
Rejects this
Data
Sender 1110000
1
Transmission
Error
10100101
Receiver
Accepted
this Data
Conclusion – 1 PB can only detect an odd number of errors

9. The purpose of a parity bit is to
provide a simple way to check for
errors
Simplest type of error
detection. It provides high
efficiency to detect errors.
WHY WE USE VERTICAL REDUNDACY CHECK METHOD ?
Only 1 parity bit is flipped it
means the parity is in error.

10. Limitations of vertical redundancy check
There are two conditions which can cause a parity checking
mechanism to fail to detect errors properly.
1. Parity Bit Corruption
2. Data Bit Corruption
3. Combination
Transmission
Error
10100101
Receiver
Accepted
this Data
Sender 1110000
1

11. Reference
Error detecting method
https://www.geeksforgeeks.org/vertical-redundancy-check-vrc-or-parity-
check/
VRC and redundant bit
https://www.geeksforgeeks.org/vertical-redundancy-check-vrc-or-parity-
check/
Limitations
https://www.inetdaemon.com/tutorials/basic_concepts/communication/err
or_detection/parity/limitations.shtml

12. Any Question

13. Hope Everyone Like This Presentation :)