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Q:

What are different ways of Initiating Transaction in CICS?

Answer

The following are the ways of initiating a CICS transaction.


1. By entering Transaction Id


2. By Start command


3. By Return Trans Id (as in pseudo - conversation)


4. By Registering Tran ID in plt so that it will be automaticaly dusring CICS start


5. By ATI (Automatic task initiation)


6.PF & PA keys as defined in PCT

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Subject: Mainframe Interview

Q:

What happens when a CICS command contains the NOHANDLE option?

Answer

- NOHANDLE is an option that can be specified along with abnormal condition during program execution.


- When the exception occurs, no action is performed during execution of NOHANDLE command.


- The abnormal condition is ignored, even the EXEC CICS HANDLE condition exist.


- The abnormal condition is also ignored when EXEC CICS IGNORE condition is tested.


- The previous HANDLE CONDITION for other commands will not be effected with NOHANDLE option.

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Q:

What CICS command are used to read a VSAM KSDS sequentially in ascending order?

Answer

READNEXT reads the next record from a browse operation for any of the three VSAM files.

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Subject: Mainframe Interview

Q:

What is CICS?

Answer

Customer Information Control System (CICS) is an online transaction processing monitor from IBM that acts as an interface between the operating system and application programs to provide rapid high-volume online transaction processing.

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Q:

In a DB2-CICS program which acts as co-ordinator and which is the participant?

Answer

DB2 acts as the participant and CICS acts as a co-ordinator


 

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Subject: Mainframe Interview

Q:

In terms of DB2 indexing, what is the root page?

Answer

The simplest DB2 index is the B-tree and the B-tree's top page is called the root page. The root page entries represent the upper range limits of the index and are referenced first in a search. 


 

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Q:

What is QUIESCE?

Answer

A QUIESCE flushes all DB2 buffers on to the disk. This gives a correct snapshot of the database and should be used before and after any IMAGECOPY to maintain consistency.

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Q:

When does the SQL statement gets executed when you use cursor in the application programming?

Answer

SQL statement gets executed when we open cursor


 

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Subject: Mainframe Interview