The HTTP request header that defines the size (in bytes) of the message body is called the **`Content-Length`** header.

### Explanation
The `Content-Length` header is crucial in HTTP communications as it informs the receiver about the size of the body of the request or response. This information is essential for the server or client to determine when the message is fully received. For instance, if a client sends a POST request with a body (like form data or a file), the `Content-Length` header indicates how many bytes of data to expect. Omitting this header can lead to confusion or errors, as the receiving end might not know when the complete message has been sent. Therefore, it plays a significant role in ensuring data integrity and efficient communication between clients and servers over the Internet.

Question

The HTTP request header that defines the size (in bytes) of the message body is called the **`Content-Length`** header.

### Explanation
The `Content-Length` header is crucial in HTTP communications as it informs the receiver about the size of the body of the request or response. This information is essential for the server or client to determine when the message is fully received. For instance, if a client sends a POST request with a body (like form data or a file), the `Content-Length` header indicates how many bytes of data to expect. Omitting this header can lead to confusion or errors, as the receiving end might not know when the complete message has been sent. Therefore, it plays a significant role in ensuring data integrity and efficient communication between clients and servers over the Internet.

Knowee AI · Accepted Answer

The HTTP request header that defines the size (in bytes) of the message body is called the **`Content-Length`** header.

### Explanation
The `Content-Length` header is crucial in HTTP communications as it informs the receiver about the size of the body of the request or response. This information is essential for the server or client to determine when the message is fully received. For instance, if a client sends a POST request with a body (like form data or a file), the `Content-Length` header indicates how many bytes of data to expect. Omitting this header can lead to confusion or errors, as the receiving end might not know when the complete message has been sent. Therefore, it plays a significant role in ensuring data integrity and efficient communication between clients and servers over the Internet.

What is the name of the HTTP request header that defines the size (in bytes) of the message body?

Question

What is the name of the HTTP request header that defines the size (in bytes) of the message body?

Solution

Explanation

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