Interview Questions Answers in JCL, IBM MainFrame AllOther

Questions / { pintokott }

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Answers / { pintokott }

Question { EDS, 17153 }

can we give instream data in procedure

Answer

Sush, we can't give instream data IN any kind of
procedures. We can give one only when we CALL proc.

Is This Answer Correct ?

2 Yes

0 No

Question { Wipro, 22606 }

in jcl you are having JCLLIB and STEPLIB what happens

Answer

JOB uses JCLLIB to find user's procedures and STEPLIB to
find user's programs

Is This Answer Correct ?

5 Yes

0 No

Question { TCS, 14672 }

what is d/f b/w sysout & sysprint

Answer

//SYSPRINT DD SYSOUT=*
Sysprint is a name of DD. Sysout is a keyword parameter.

Is This Answer Correct ?

5 Yes

8 No

Question { 7065 }

jcl is like a complier....?

Answer

Yes, but not a translator. JCL is like an interpreter.

Is This Answer Correct ?

1 Yes

0 No

Question { 3214 }

hai this ravi, i completed my mca in 2009, i learnt .net
course, i hav been looking for a job on .net, now i would
like learn ibm mainframes to get job immediatly,is it
correct decision? basically am not sound in programming,what
about unix adminstration plz help me to take correct
decision,which is the best course now to get the job
immediatly

Answer

The one who stakes on IBM technologies - makes the big
mistake

Is This Answer Correct ?

4 Yes

4 No

Question { 15462 }

what is the difference between FB & FBA?

Answer

A :-)
it means that first char of each record will be used by
printer as control letter

Is This Answer Correct ?

20 Yes

2 No

Question { 4895 }

how to invoke subprogram in jcl?

Answer

just replace "subprogram" with "proc" - and it will be O'k.
e.g.
//MYJOB JOB
//*
//MYSAMPLE PROC MYPARAM=DEFAULTVALUE
//MYSUBPRO EXEC PGM=MYSUB
//... DD-cards
//MYSAMPLE PEND
//*
//MYSTEP EXEC MYSAMPLE,MYPARAM=FOREXAMPLE

Is This Answer Correct ?

5 Yes

0 No

Question { IBM, 17480 }

Can we have a JOBSTEP without any EXEC ?

Answer

No, you can't. But you can use system program IEFBR14 to do
nothing on the sole step, e.g.
//MYJOB JOB
//MYSTE EXEC PGM=IEFBR14
p.s. what is the purpose to write a job without any real
work inside?

Is This Answer Correct ?

2 Yes

0 No

Question { IBM, 10260 }

Why 16 is used in calculating the DPRTY ?
as, DPRTY = (num1, num2),
THEN, DPRTY = 16* num1 + num2

Answer

Supervisor allocate for DPRTY in memory just 1 byte. It
means 255 different values at all. num1 and num2 is a half-
byte = 4 bit. 1 bit == 2 values, 4 bit == 16 values.

Is This Answer Correct ?

0 Yes

1 No

Question { IBM, 5406 }

As PARM can supply information to a program ? Can PARM be
used to supply information to a cataloged or Inline
Procedure also ?

Answer

//mystep EXEC PGM=myprog,PARM='myparameters'
myparameters can content any data as your program need.
There is no way to use PARM with instream or cataloged
procedures.

Is This Answer Correct ?

0 Yes

1 No

Question { IBM, 5427 }

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

Answer

//MYJOB JOB COND=(4,LT)
//MYSTEP1 EXEC CATPROC
//MYSTEP2 EXEC PGM=MYPROG,COND=(8,LE,MYSTEP1)

COND=(4,LT) will be used to MYSTEP2,
COND=(8,LE,MYSTEP1) will be ignored

Is This Answer Correct ?

2 Yes

3 No

Question { IBM, 7709 }

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 ?

Answer

Step2 without COND will be executed regardless of Step1 RC

Is This Answer Correct ?

4 Yes

0 No

Question { IBM, 5483 }

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) ?

Answer

All the above COND are INVALID as per
the specifications.

Is This Answer Correct ?

2 Yes

1 No

Question { IBM, 7951 }

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

Answer

2 Rikdeb: (ii) DSN=*.TEMP IS INCORRECT.
Alas.

Is This Answer Correct ?

1 Yes

0 No

Question { ABC, 6236 }

GDGs can be CREATED (not COPIED) only on DASD and NOT on
tape drives ? Is it True ?

Answer

No, it is not True!

Is This Answer Correct ?

4 Yes

1 No