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Exam 200-301 topic 1 question 1382 discussion

Actual exam question from Cisco's 200-301
Question #: 1382
Topic #: 1
[All 200-301 Questions]

Why is UDP more suitable than TCP for applications that require low latency, such as VoIP?

  • A. UDP uses sequencing data for packets to arrive in order, and TCP offers the capability to receive packets in random order.
  • B. TCP uses congestion control for efficient packet delivery, and UDP uses flow control mechanisms for the delivery of packets
  • C. UDP reliably guarantees delivery of all packets, and TCP drops packets under heavy load.
  • D. TCP sends an acknowledgment for every packet that is received, and UDP operates without acknowledgments.
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Suggested Answer: D 🗳️

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exiledwl
7 months, 2 weeks ago
Selected Answer: D
Given answer is correct
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[Removed]
7 months, 3 weeks ago
Selected Answer: D
Ref: If UDP Isn’t Error-Free, Why Is It Perfect for Streaming? - Crazy Egg "... UDP Overview | User Datagram Protocol UDP is a connectionless transport network protocol. As such, it doesn’t establish a “handshake” connection between the sender and receiver before transmitting data. Still, when combined with IP, the UDP/IP suite enables communication between two devices over a network. ... From a technical standpoint, UDP is “unreliable” for several reasons, but mostly because it doesn’t guarantee packet delivery. Instead, it sends data without confirming if it arrived at the destination. This makes it fast, but imperfect. In practice, UDP is suitable for applications that require low latency and can tolerate some degree of packet loss. It’s most commonly used for VoIP calls, live audio or video streaming, and online gaming. All of these activities require a steady data flow moving as quickly as possible. ..."
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