Exam: 200-301: Cisco Certified Network Associate (CCNA) 0 Likes
Why is UDP more suitable than TCP for applications that require low (CCNA 200-301)
Why is UDP more suitable than TCP for applications that require low latency such as VoIP?
A. UDP reliably guarantees delivery of all packets: TCP drops packets under heavy load.
B. UDP uses sequencing data for packets to arrive in order TCP offers the capability to receive packets in random order.
C. TCP uses congestion control for efficient packet delivery: UDP uses flow control mechanisms for the delivery of packets.
D. TCP sends an acknowledgement for every packet received: UDP operates without acknowledgments.
Solution
Correct answer: D. TCP sends an acknowledgement for every packet received: UDP operates without acknowledgments.
UDP (User Datagram Protocol) is more suitable than TCP (Transmission Control Protocol) for applications that require low latency, such as VoIP (Voice over Internet Protocol), because it does not require acknowledgments for every packet received. This means that UDP packets can be sent and received quickly, without the need for the sender to wait for an acknowledgment from the receiver. This reduces latency and allows for more real-time communication.
In contrast, TCP requires an acknowledgment for every packet received, which can introduce latency and delay the transmission of data. This makes TCP less suitable for applications that require low latency, such as VoIP.
Category: IP Services