Which COBOL file access mode is commonly used with VSAM and ISAM files when data can be both read and written?
- EXTEND
- I-O (Input-Output)
- INPUT
- OUTPUT
The I-O (Input-Output) file access mode is commonly used with VSAM and ISAM files when data can be both read and written. This mode allows for a combination of read and write operations on the file.
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