Flow control methods prevent network congestion by doing what?

Flow control methods prevent network congestion by doing what?

• A. Ensuring transmitting devices do not overwhelm receiving devices with data
• B. Prioritizing traffic by type
• C. Encrypting data to reduce size
• D. Increasing bandwidth automatically

Answer: (A)

Flow control focuses on matching the sender’s data rate to the receiver’s ability to absorb and buffer it. When the receiver’s buffers fill, it signals the sender to pause or slow down, preventing overflow, packet loss, and retransmissions that can lead to congestion. By using mechanisms that convey how much data the receiver can accept (like window sizes or credits), the sender stays within that limit and avoids overwhelming the end point. This keeps the data flow steady and helps maintain smooth communication. Other ideas like prioritizing traffic, compressing data, or automatically increasing bandwidth address different concepts and don’t describe how flow control prevents the receiver from being overwhelmed.

Flow control focuses on matching the sender’s data rate to the receiver’s ability to absorb and buffer it. When the receiver’s buffers fill, it signals the sender to pause or slow down, preventing overflow, packet loss, and retransmissions that can lead to congestion. By using mechanisms that convey how much data the receiver can accept (like window sizes or credits), the sender stays within that limit and avoids overwhelming the end point. This keeps the data flow steady and helps maintain smooth communication. Other ideas like prioritizing traffic, compressing data, or automatically increasing bandwidth address different concepts and don’t describe how flow control prevents the receiver from being overwhelmed.