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What is the fixed-size blocks used by Trivial File Transfer Protocol to transfer the data ?

  • A.128 bytes
  • B.256 bytes
  • C.512 bytes
  • D.1024 bytes

Answer: C

TFTP uses fixed blocks of 512 bytes.

Trivial File Transfer Protocol (RFC 1350) sends data in numbered blocks of 512 bytes, each acknowledged before the next is sent. A block shorter than 512 bytes signals the end of the file.

Larger block sizes can be negotiated only through the later block-size option extension; the protocol's fixed block is 512, not 128, 256 or 1024.

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