With the increase in the transmission rate of data and information over the network channels, the need to check the integrity of the received data is a big challenge, but to overcome this situation, use of the parity bit check method is done, which helps to check the received data for any error and also the data’s integrity.

In this article on ‘What Is Parity Bit Check?’, we will look into all the parts of the network method and its working steps for a network problem.

## What Is Parity Bit Check?

The parity bit check is a network method designed to detect errors and check the integrity of the data received at the receiver side by the sender side. The parity check method adds a bit to the original data for checking errors at the receiver end.

In case the received data is damaged, the receiver end will request for retransmission of data from the sender side.

Now let’s move on to the next topic in this article on parity check, i.e., key attributes related to the method.

## Key Attributes of Parity Check

During performing the parity check method, the use of multiple attributes is required to ensure the accuracy of the method, some of which are:

### Redundant Bit

- These are the explicitly added data bits in the original data to determine the error or damage at the receiver end.
- The value of the redundant bit is specified by the type of parity check method applied to the data.

### Parity Bit Value

- The parity bit is the method to append binary bits to ensure that the total count of 1’s in the original data is either even or odd.
- Used for error detection in the original data at the receiver side and correcting the data.

## Types of Parity Bits

- Even parity bit: In this parity bit type, the total count of 1’s in the data, including the extra bit, should be even in number.

- Odd parity bit: In this type of parity bit value, the total count of 1’s in the data inducing the extra bit should be odd in number.

Next, we will look at the solved examples using the parity check method to understand all the steps involved in solving the problem.

## Solved Example Applying Parity Check

To better understand the working steps for solving the error using the parity check method, let’s take a look at the following examples:

Q1. For the given data bit 101101, apply the odd parity check method for data transmission.

- Step1: Count the number of 1’s in the original data.

> 4 bits

- Step2: According to the value from step1, determine the parity bit's value, i.e., 1, so the overall count of 1 becomes 5 bits.

- Step 3: Begin data transmission to the receiver side, and discuss all the obtained cases.

Case 1: The data bit received through transmission has no errors, i.e., the data received is correct after applying the odd parity check.

Case 2: The data bit received through transmission has errors, i.e., the data received is damaged after applying the odd parity check.

Case 3: The data bit received through transmission has errors, i.e., the data received is correct after applying the odd parity check.

Q2. For the given data bit 110111, apply the even parity check method for data transmission.

- Step1: Count the number of 1’s in the original data.

> 5 bits - Step2: According to the value from step1, determine the parity bit's value, i.e., 1, so the overall count of 1 becomes 6 bits.

- Step 3: Begin data transmission to the receiver side, and discuss all the obtained cases.

Case 1: The data bit received through transmission has no errors, i.e., the data received is correct after applying the even parity check.

Case 2: The data bit received through transmission has errors, i.e., the data received is damaged after applying the even parity check.

Case 3: The data bit received through transmission has errors, i.e., the data received is correct after applying the even parity check.

With this, we have covered all the important headings for understanding the parts and working of the parity check method.

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## Conclusion

In this article on ‘What Is Parity bit check?’, we looked into the definition and key points along with thoroughly solved examples using the parity bit method.

You can refer to Simplilearn’s Cyber Security Expert course to further understand the working of the network methods. By completing this professional course, you’ll become more proficient with terms related to network-related models and methods.

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