IBM MainFrame Interview Questions
Questions Answers Views Company eMail

what's the biggest disadvantage of using a VSAM dataset?

Anjana, CTS, DSRC, IBM,

8 17552

what's the device independent method to indicate where a Record is Stored?

1 4921

How many times secondary space allocated?

5 9228

what is the RRN for the first record in RRDS?

2 11045

what is a Base Cluster?

HSBC, TCS,

3 9484

If FSPC(100 10 is specified does it mean that both the control interval and control area will be left empty because 100 % of both CI and ca are specified to be empty?

DSRC,

1 7540

What is a Generation Data Group (GDG)?

2 8969

How is a GDG base created?

5 24218

What is model dataset label(Model DSCB)?

1 22632

How are GDGs concatenated?

1 13407

How is a new GDG coded?

2 8906

When should DISP=MOD is used?

TCS,

6 44012

How is a dataset passed from one step to another?

DELL,

2 14386

How are datasets concatenated?

CitiGroup,

3 12395

What is the difference between the JOBLIB and the STEPLIB statements?

3 35872


Un-Answered Questions { IBM MainFrame }

In real storage usage. By monitor through rmf iii the usage of real storage keep in increasing everyday. Why this happen?

527


what is the difference between a return with transid and xctl? For example program. A is issuing return with transid to program b. Program a. Is isssuing xctl to program b?

666


What is the information associated with sysibm.syslinks table?

648


Explain the difference between various read and find statement and which one should be used when for better adabas performance?

575


Which is not true about evaluate statement

1560






what JCL Procedures?

691


On which levels locks can be applied?

650


What does a COMMIT statement do?

1020


Differentiate between hdam and the hidam databases?

530


suppose if you added a coloumn to db2 table, How would it be the Impact analysis?

1507


What is the use of mdt (modified data tag)?

602


How to resolve deadlock issue

17924


Why would you use find and get rather than to obtain?

671


What is the LINKAGE SECTION used in COBOL?

882


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) ?

1742