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)

2. 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 .

3. 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.

4. Can a CICS program without Linkage section ?>

    ANS : No. Linkage section should be defined in all the CICS programs.

5. 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.