CICS
Is there any entry for TSQs in CICS tables?
Yes in the DFHTST.
What is the use of DCT?
Destination Control Table used to define TDQs
What is ENQ, DEQ ?
Task control commands to make resources serially reusable.
Can you issue SQL COMMIT from a CICS program? –
Yes.
What is the other way of terminating a transaction? –
EXEC CICS SYNCPOINT. Assuming it is a LUW. This will not end the Xn.
What is an ASRA abend ?
Any data exception problem SOC7, SOC4 etc.
What is an AEY9 abend ?
DB2/IDMS not up.
What are the situations under which NEWCOPY is required ?
When a program has been used in CICS atleast once and then changed and recompiled.
What is 2 phase commit?
What is EXEC CICS RETRIEVE ?
Used by STARTed tasks to get the parameters passed to them.
Name some important fields in the EIB block ?
EIBRESP, EIBCALEN, EIBRRCDE, EIBTASK, EIBDATE, EIBTIME
Can you use DYNAMIC calls in CICS ?
Yes, the called routine must be defined in PPT and the calling program must use CALL identifier..
How do you handle errors in CICS pgms ?
Check EIBRESP after the call or use the HANDLE condition.
Suppose pgm A passes 30 bytes to pgm B thru commarea and pgm B has defined its DFHCOMMAREA to be 50 bytes . Is there a problem ?
Yes, if B tries to access bytes 31-50.
When an XCTL is done, does the tranid change ? Is a new task created ? Does it cause an implicit SYNCPOINT to be issued ?
No, No, Yes.
How do you execute a background CICS txn ?
With a START or ATI.
How do you handle error in a CICS program?
Same as 36.
What is the difference between START and XCTL ?
START is used to start a new task. It is a interval control command. XCTL is used to pass control to a program within the same task. It is a program control command.
What is the usage of language in the PPT entry?
Language interface and call parameters???
Can you have CICS code in a copybook? If yes, what happens during compilation?
Yes. Needs to be preprocessed.
What is an AICA abend?...