_____ protocol is used for uploading and downloading files between different…
2021
_____ protocol is used for uploading and downloading files between different computers.
- A.
X.12
- B.
XMODEM
- C.
X.75
- D.
XON
Attempted by 2029 students.
Show answer & explanation
Correct answer: B
Answer: XMODEM
Explanation: XMODEM is a file transfer protocol used for uploading and downloading files between computers, especially over serial links or modems. It sends data in fixed-size blocks and uses checksum or CRC to detect transmission errors.
Why XMODEM is correct: simple block-based file transfer with error detection suitable for sending files between systems.
Why the other choices are incorrect:
X.12 is an electronic data interchange (EDI) standard for business documents, not a file transfer protocol.
X.75 deals with interconnecting X.25 packet-switched networks and is unrelated to general file uploading/downloading.
XON refers to a software flow-control control character (used with XOFF) and is not a file transfer protocol.