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Mainframe interview questions
- Question 1) What is the difference between LINK and XCTL?
- Question 2) What is the difference between the MRO & ISC?
- Question 3) What happens when a CICS command contains the NOHANDLE option?
- Question 4) What is Quasi-reentrancy?
- Question 5) How are VSAM Files Read in CICS pgms?
- Question 6) What are the differences between Temporary Storage Queue (TSQ) and Transient Data Quene (TDQ)?
- Question 7) What is the CICS command that is used to access current date and time?
- Question 8) What is MDT?
- Question 9) What is the CICS LOAD command?
- Question 10) What is a cursor in CICS SQL processing?
- Question 11) How do you handle errors in CICS pgms?
- Question 12) Explain the various ways data can be passed between CICS programs?
- Question 13) What is CEDF?
- Question 14) What is a clustered index?
- Question 15) What is the difference between static and dynamic SQL?
- Question 16) How do you retrieve the data from a nullable column?
- Question 17) What is a DBRM, PLAN?
- Question 18) What is the difference between HIDAM and HDAM databases?
- Question 19) What is Mainframe Testing?
- Question 20) What is the self-referencing constraint?
- Question 21) Explain lock contention?
- Question 22) What is the difference between version control and debugging tools?
- Question 23) Explain the difference among the EXEC LINK, EXEC XCTL, and Cobol II static call statements in CICS?
- Question 24) Name some commands used for CICS file browsing.?
- Question 25) How will you access a VSAM File using an alternate index?
- Question 26) What is the primary objective of CICS?
- Question 27) How does DB2 store NULL physically?
- Question 28) What is DCLGEN?
- Question 29) What are the two types of transient data queues?
- Question 30) What does EIB mean?
- Question 31) What is SPUFI?
- Question 32) What is the COMMAREA(communications area)?
- Question 33) What do the keywords MAPONLY and DATAONLY mean?
- Question 34) What is ASRA ABEND in CICS?
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Below are the list of Best Mainframe Interview Questions and Answers
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