Cisco Certified Network Professional Practice Test 2026 – Your All-in-One Guide to Exam Success!

Increased latency in data transmission refers to the delay before data begins to transfer over a network. This delay can significantly impact the performance of applications and the overall user experience. The correct choice asserts that fewer acknowledgments (ACKs) would lead to increased data transmission, which does not align with the impact of increased latency. In reality, higher latency generally results in more delays, meaning that packets take longer to reach their destination and receive an acknowledgment.

Higher latency can ultimately lead to inefficiencies in communication between devices. A network with increased latency often experiences delays in the sending of packets as the sender waits for ACKs from the receiver. This is particularly evident in protocols that depend heavily on ACKs, such as TCP, where the lack of timely acknowledgments can lead to reduced throughput.

In the context of the other choices, increased latency can affect data transfer rates negatively by causing congestion and delays that could result in lower total data transfer rates and higher chances of packet loss occurring if the sender continues to send packets without receiving proper feedback from the receiver. Improved connection speed, contrary to the claim made in the choice, is unlikely, as latency is inversely related to performance quality.