What are the files that can be created using LIKE Parameter?
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VSAM File
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Tape File
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none of above
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Both a and b
To answer this question, the user needs to know about the LIKE parameter in mainframe programming.
The LIKE parameter is used to create a new file that has the same record-layout as an existing file. This is useful when you want to create a new file with the same structure as an existing file, but with different data.
Now, let's go through each option and explain why it is right or wrong:
A. VSAM File: This option is correct. You can use the LIKE parameter to create a new VSAM file that has the same record-layout as an existing VSAM file.
B. Tape File: This option is incorrect. You cannot use the LIKE parameter to create a new tape file. Tape files are typically used for backup and archival purposes, and do not have a record-layout like VSAM files.
C. None of above: This option is incorrect. As explained above, option A is correct.
D. Both a and b: This option is incorrect. Although option A is correct, option B is not.
Therefore, The Answer is: A. VSAM File
Correct answer: VSAM File. In JCL/IDCAMS (and DB2/COBOL file definitions), the LIKE parameter lets you define a new VSAM cluster (KSDS/ESDS/RRDS) by copying the attributes (record size, key length, etc.) of an existing 'model' VSAM file, saving you from specifying them all manually. Tape files are sequential and don't support attribute inheritance via LIKE in this way, so 'Both a and b' and 'none of above' are wrong.