Regarding the description of file reputation technology in anti-virus engines, which of the following options is correct?
A.
Local reputation MD5 cache only has static cache, which needs to be updated regularly
B.
File reputation database can only be upgraded by manual upgrade
C.
File reputation is to perform virus detection by calculating the full text MD5 of the file to be tested and matching it with the local reputation MD5 cache
D.
File reputation database update and upgrade can only be achieved through linkage with sandbox
Chosen Answer:
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