FTP Hides System Differences | Generated by AI

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Question: In a heterogeneous network, FTP is used to transfer files between any computers. This is because FTP ____ the differences (details) between computers.

Answer:

Answer: 屏蔽 (Shields / Hides)

Explanation

What is a Heterogeneous Network?

A heterogeneous network refers to an environment where computers may differ in:

Why Can FTP Transfer Files Across Any Computer?

The systems involved in FTP connections are heterogeneous — they differ in operating systems, directory structures, character sets, etc. FTP shields the user from these differences and transfers data efficiently and reliably.

In other words, FTP acts as an abstraction layer that hides (shields / 屏蔽) all these underlying technical differences between computers, so that the end user does not need to worry about what OS or file system the remote machine is using.

How Does FTP Achieve This?

FTP’s design enables data exchange across heterogeneous systems, supporting file transfers, appending, renaming, and deleting files and directories on remote hosts, regardless of differences in underlying architectures, operating systems, file systems, and character sets.

FTP does this by:

  1. Standardizing the transfer process using a universal client-server model
  2. Supporting multiple file types — ASCII, EBCDIC, and binary (image) formats
  3. Using two separate TCP connections — one for control commands (port 21), and one for data transfer (port 20)

Key Concept for the Exam

The blank should be filled with 屏蔽 (shield/hide). The full sentence reads:

异构网络采用FTP在任意计算机之间传送文件，这是因为FTP 屏蔽 了各计算机之间的细节。

This means FTP shields/hides the differences (details) between different computers — including OS differences, file system differences, and character encoding differences — allowing seamless file transfer across any two machines in a heterogeneous network.

References:

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