Tag: mainframe

Questions Related to mainframe

How can submitting user's RACF authority be overridden in a job stream?
technology mainframe

  1. Through the USER parameter

  2. Through the USER and PASSWORD parameter

  3. Through the RACF parameter

  4. By notifying the console operation to override authority

Show answer
Correct Option: B

Many JCL statements contain specific values designed to direct and control the execution of the statement. What are these fields called?

technology mainframe

  1. Linkage variables

  2. Parameters

  3. Control libraries

  4. Includes

Show answer
Correct Option: B

AI Explanation

To answer this question, you need to understand the purpose of these values in JCL statements. Let's go through each option to understand why it is correct or incorrect:

Option A) Linkage variables - This option is incorrect because linkage variables are used in programming languages like COBOL to pass data between programs, not in JCL statements.

Option B) Parameters - This option is correct because JCL statements often contain specific values, known as parameters, that are used to direct and control the execution of the statement. These parameters can specify things like program names, dataset names, and other instructions for the system.

Option C) Control libraries - This option is incorrect because control libraries refer to datasets that contain control statements or programs used by the system during job execution, rather than specific values in JCL statements.

Option D) Includes - This option is incorrect because includes are used in programming languages like COBOL to include external code or copybooks, not in JCL statements.

The correct answer is B) Parameters. This option is correct because JCL statements often contain specific values, known as parameters, that are used to direct and control the execution of the statement.

Can an individual step be restricted from using all the job's allowed CPU time?
technology mainframe

  1. Yes

  2. No

  3. Only in catalogued procedures

  4. Through the STEPTIME parameter

Show answer
Correct Option: A

What is the maximum length of a single line of JCL?
technology mainframe

  1. 72

  2. 74

  3. 73

  4. 71

Show answer
Correct Option: D

What is the purpose of DD DUMMY statement?

technology mainframe

  1. Marks a deleted DD statement

  2. Begins an interpreted command stream

  3. Specifies no space allocation & no disposition processing

  4. Suppress command processing

Show answer
Correct Option: D

AI Explanation

To answer this question, let's go through each option to understand why it is correct or incorrect:

Option A) Marks a deleted DD statement - This option is incorrect. The purpose of the DD DUMMY statement is not to mark a deleted DD statement.

Option B) Begins an interpreted command stream - This option is incorrect. The DD DUMMY statement does not begin an interpreted command stream.

Option C) Specifies no space allocation & no disposition processing - This option is incorrect. While the DD DUMMY statement does not allocate space, it does not specify no disposition processing.

Option D) Suppress command processing - This option is correct. The purpose of the DD DUMMY statement is to suppress command processing. It is typically used in JCL (Job Control Language) to define a dummy data set that does not contain any actual data, but is required to satisfy the syntax of the JCL.

The correct answer is D) Suppress command processing. This option is correct because the DD DUMMY statement is used to suppress command processing.

I am using internal sort in my cobol program . Is there any way to test the return code of operation???
technology mainframe

  1. No , we can't check the return code for internal sort however for external sort it can be done

  2. YES,by using SORT-RETURN special register

  3. YES, we can test via Run jcl.

  4. YES,by checking in listing of the proram

Show answer
Correct Option: B

What will happen if I change the below code MOVE ZERO TO TOTAL . PERFORM VARYING I FROM 1 BY 1 UNTIL I > 100 COMPUTE TOTAL = TOTAL + ITEM(i) * DISCOUNT END-PERFORM to the follwing code MOVE ZERO TO TOTAL PERFORM VARYING I FROM 1 BY 1 UNTIL I > 100 COMPUTE TOTAL = TOTAL + ITEM(i) END-PERFORM COMPUTE TOTAL = TOTAL * DISCOUNT

technology mainframe

  1. NO ERROR but offcourse the result will differ.

  2. syntax error will occur

  3. Run time error

  4. NO ERROR with same result

Show answer
Correct Option: D

If you are accessing ESDS VSAM file , then in cobol if you don't prefix the ddname with 'AS-' Then which abend might occur when attempting to open a dataset??
technology mainframe

  1. S213

  2. S806

  3. S000 U4038

  4. S001-5

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Correct Option: A

MERGE statement can have

technology mainframe

  1. O/P PROCEDUE and INPUT PROCEDURE both

  2. O/P PROCEDUE but not INPUT PROCEDURE

  3. INPUT PROCEDURE but not O/P PROCEDUE

  4. can't use both of them

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Correct Option: B

For KSDS or RRDS ,when DELETE statement is used the file must be opened in

technology mainframe

  1. Input mode

  2. outout mode

  3. I/O mode

  4. extend

Show answer
Correct Option: C