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IBM MainFrame Interview Questions
Questions Answers Views Company eMail

What does it mean by Restart and Checkpoint in JCL ? How are checkpoints being taken and what is their usage ? How to use Checkpoint macro on a JOBSTEP ?

IBM,

9809

Can we give TIME = (1440, 59) also ? or is TIME = (1439, 59) is the last one ?

IBM,

5 15046

If a JOBSTEP abends, AND without using COND also, all the subsequent steps execute, then what is the use of using EVEN ? Why do we use EVEN when without it also all the JOBSTEPs execute ?

IBM,

2 6664

Is CPU time assigned to a JOB and JOBSTEP BOTH, by default ?

IBM,

4 6990

Could you provide an example and its effect OF, Using COND on JOB and EXEC both ?

IBM,

4 7029

COND -> step1 . . step2, Step2, Executes if the CC of step1 is 0. But even if it is NOT 0 and if we dont give COND, will step2 be executed ?

IBM,

4 9588

IF WE GIVE COND on step3 then, What does the following mean ? And Just adding to that, All the below COND are VALID as per the specifications. (i) COND = (8,LT,step1,step2) ---(AND/OR ?) (ii) COND = (8,LT,step1,step2, ONLY), (iii) COND = (8,LT,step1,ONLY) will it execute only if this condition is true or only if step1 ABENDS ? (iv) COND = (8,LT,step1,step2,EVEN), (v) COND = (8,LT,step1,EVEN) ?

IBM,

2 6567

How to release the Output HELD by using HOLD = YES on DD statement ?

IBM,

2 6313

Are all (i), (ii), (iii), (iv) of the below are VALID to reference a temporary dataset ? STEP2 DD1 DD DSN = &&TEMP STEP3 DD2 DD (i) DSN = TEMP (ii) DSN = *.TEMP (iii) DSN = *.STEP1.DD1 (iv) DSN = *.STEP1.DD1.ONE

IBM,

8 10748

Can a temporary dataset be converted to permanent dataset and vice-versa in the middle of a job ?

IBM,

4 9703

We can use PASS with permanent datasets also. THEN Which is the condition in which we may use PASS (instead of KEEP) with permanent data sets, while there is no need to specify UNIT and VOL for them like temporary data sets (in cas we use KEEP for permanent data sets) ?

IBM,

2468

We can use PASS with permanent datasets also. THEN Which is the condition in which we may use PASS (instead of KEEP) with permanent data sets, while there is no need to specify UNIT and VOL for them like temporary data sets (in cas we use KEEP for permanent data sets) ?

IBM,

2299

Which storage devices are grouped under DASD and SYSDA ?

IBM,

1 10133

When a dataset is UNCATALOGED in a JOBSTEP, how to get its UNIT and VOL in JCL to refer in subsequent steps ?

IBM,

1 6956

FOR a GDG, the book by 'SABA ZAMEER' says 'We can NOT ALTER the LIMIT parameter after it is defined'. (p-211). But many persons have written that it can be changed, which one is true ?

IBM,

4 7430


Un-Answered Questions { IBM MainFrame }

How connect db2 database to datastage?

1296


State all the file open modes?

1131


Explain the difference between cics program control table (pct) and cics processing program table (ppt)?

1112


Can we redefine the field of x(200) to less than 200?

1439


Define cobol coding sheet?

1067


How can unused space allocation be returned to the system when a dataset is closed?

1572


How to print 10 to 1 if the input have only 10 digit number?

1309


What is multi row fetch in db2?

1108


) what is the difference between AID and HANDLE AID?

2203


Name some translator and compile options and explain their meaning?

2901


What are sqlcodes –803,-805, -811, -818,-904,-911,-913,-101, +100?

1243


What kind of database is db2?

1089


What are types of indexes?

1195


What is phantom read in db2?

1228


What is the significance of addrspc parameter in the exec statement?

1138