Which one of the following is correct?
The report has been completed. Copies have been filed in the cabinet
The report is completed. Copies are filed in the cabinet
The report has been completed and copies have been filed in the cabinet.
Which one of the following is correct?
The report has been completed. Copies have been filed in the cabinet
The report is completed. Copies are filed in the cabinet
The report has been completed and copies have been filed in the cabinet.
All your possible answers are correct and understandable, however the third sounds most natural
The report has been completed and copies have been filed in the cabinet.
alternatives might be
The report is completed and copies are filed in the cabinet.
The report is completed and copies have been filed in the cabinet.
The report has been completed and copies are filed in the cabinet.
Since both independent clauses
The report is/has been completed.
Copies are/have been filed in the cabinet.
are short and related they can be joined for a better flow.
Separately, they sound very perfunctory and military, but that may be the effect you want.