CICS: Interview questions

  1. Program 1 :
    Gets control fron CICS
    Writes a record “RECORD 1” to file1.
    XCTL to Program 2

    Program 2 :
    Abend

    What will be result ?.

    Ans : The file1 will be restored to the original position. That is, If we Browse the “FILE 1”,  “RECORD 1” will not be available. (ROLL BACK)
  1. Program 1 :
    Gets control fron CICS
    Writes a record “RECORD 1” to file1.
    XCTL to Program 2

    Program 2 :
    Do some operation.
    Return control to CICS.

    Whether task number (EIBTASKN) will be same for both the programs ?.

    ANS : Yes .
  1. How to submit a job from CICS ?.
    ANS : Define a extra partition TDQ. Write the JCL into it. In Destination control table define a DSCNAME for TDQ. This DSCNAME should be included in the start up job of CICS region and this ddname should be directed to INTRDR.
  1. Can a CICS program without Linkage section ?>
    ANS : No. Linkage section should be defined in all the CICS programs.
  1. Program 1 :
    Gets control fron CICS
    Writes a record “RECORD 1” to file1.
    LINK to Program 2

    Program 2 :
    Do some operation.

    EXEC CICS RETURN TRANSID (“XXXX”)
          COMMAREA (CA-COMM-AREA)
          LENGTH (LENGTH OF CA-COMM-AREA)
    END-EXEC.
    What is the resut ?.

    ANS : While executing program 2 , abend will occur.

    In Linked program we can not code RETURN with TRANID option.

    Follwing is the correct one.

    EXEC CICS RETURN
    END-EXEC.


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