Comprehensive and Detailed Explanation:
The history-command max-size command in Huawei VRP (Versatile Routing Platform) is used to set the maximum number of previously used commands that can be saved in the command history buffer.
* By default, Huawei devices store 5 previously-used commands in the buffer.
* The command history-command max-size 20 increases the buffer size to 20 commands.
* This does not limit the buffer to 20 bytes; instead, it allows 20 entire commands to be stored.
* The correct statement that matches this behavior is:
* "The history-command max-size 20 command sets the maximum of previously-used commands that can be saved in the buffer to 20."
# Reference: HCIA-Datacom Configuration Guide - Command Line Interface