Mainframe interview questions

Read Best Interview Questions on MainFrame

#1 Question

What is the difference between LINK and XCTL?

#2 Question

What is the difference between the MRO & ISC?

#3 Question

What happens when a CICS command contains the NOHANDLE option?

#4 Question

What is Quasi-reentrancy?

#5 Question

How are VSAM Files Read in CICS pgms?

#6 Question

What are the differences between Temporary Storage Queue (TSQ) and Transient Data Quene (TDQ)?

#7 Question

What is the CICS command that is used to access current date and time?

#8 Question

What is MDT?

#9 Question

What is the CICS LOAD command?

#10 Question

What is a cursor in CICS SQL processing?

#11 Question

How do you handle errors in CICS pgms?

#12 Question

Explain the various ways data can be passed between CICS programs?

#13 Question

What is CEDF?

#14 Question

What is a clustered index?

#15 Question

What is the difference between static and dynamic SQL?

#16 Question

How do you retrieve the data from a nullable column?

#17 Question

What is a DBRM, PLAN?

#18 Question

What is the difference between HIDAM and HDAM databases?

#19 Question

What is Mainframe Testing?

#20 Question

What is the self-referencing constraint?

#21 Question

Explain lock contention?

#22 Question

What is the difference between version control and debugging tools?

#23 Question

Explain the difference among the EXEC LINK, EXEC XCTL, and Cobol II static call statements in CICS?

#24 Question

Name some commands used for CICS file browsing.?

#25 Question

How will you access a VSAM File using an alternate index?

#26 Question

What is the primary objective of CICS?

#27 Question

How does DB2 store NULL physically?

#28 Question

What is DCLGEN?

#29 Question

What are the two types of transient data queues?

#30 Question

What does EIB mean?

#31 Question

What is SPUFI?

#32 Question

What is the COMMAREA(communications area)?

#33 Question

What do the keywords MAPONLY and DATAONLY mean?

#34 Question

What is ASRA ABEND in CICS?

#35 Question

What are the differences between DFHCOMMAREA and TSQ?

#36 Question

Which command is used to release a record on which exclusive control is gained?

#37 Question

What are the different types of Table spaces?

#38 Question

How to establish dynamic cursor position on a map?

#39 Question

How do you make your BMS maps case sensitive?

#40 Question

What is EIB? How it can be used?

#41 Question

What is the significance of RDO?

#42 Question

What is the difference between pseudo-conversational and conversational?

#43 Question

When are scope terminators compulsory?

#44 Question

What are different ways of Initiating Transaction in CICS?

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