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What is true about the difference between TCP and UDP? (Choose two.)
TCP provides connection oriented service, while UDP provides a connectionless service.
TCP provides fewer services than UDP.
TCP needs fewer bytes in its header than UDP.
TCP uses more network resources than UDP.
TCP does not slow down data transfer while UDP can purposefully slow down
TCP is a transport layer protocol, which provides services such as: reliable connectivity, error recovery, flow control through windowing, multiplexing using port numbers and ordered data transfer. UDP on the other hand provides a connectionless service, meaning that no reliability is provided. To provide a reliable connection, TCP must use more network resources than UDP, making TCP a slower protocol. To provide these services TCP must have a larger header than UDP. TCP header is 20 bytes long, or up to 24 bytes with options, while UDP is only 8 bytes long. For more information refer to: [Todd Lammle, CCNA Cisco Certified Network Associate, Fifth Edition, Study Guide, Chapter 2, page 66]
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