Multiple choice technology mainframe

What is the maximum length of a single line in JCL ?

  1. 60 bytes

  2. 55 bytes

  3. 80 bytes

  4. 71 bytes
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

JCL (Job Control Language) uses 80-character records, but only columns 1-71 contain JCL statements. Column 72 is for the continuation character, and columns 73-80 are reserved for sequence numbers (ignored by the system). Therefore, 71 bytes is the maximum usable length for JCL content.

AI explanation

To answer this question, you need to understand the characteristics of JCL (Job Control Language) in mainframe computing.

JCL is a scripting language used to define and control jobs on IBM mainframe operating systems. It consists of statements that specify the various job steps, input/output files, and system resources required for job execution.

In JCL, the maximum length of a single line is 71 bytes. This includes the statement itself and any continuation characters used to extend the line beyond the initial 71 bytes.

Option A) 60 bytes - This option is incorrect because the maximum line length in JCL is 71 bytes.

Option B) 55 bytes - This option is incorrect because the maximum line length in JCL is 71 bytes.

Option C) 80 bytes - This option is incorrect because the maximum line length in JCL is 71 bytes.

Option D) 71 bytes - This option is correct because it correctly identifies the maximum line length in JCL.

The correct answer is D) 71 bytes.

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