What are the three levels of definition for the VSAM DEFINE?

Correct Answer: Define new VSAM dataset allocated with more space Use IDCAMS to REPRO the old VSAM file to new VSAM dataset Use IDCAMS to ALTER / RENAME the old VSAM dataset to DELETE the old VSAM datset Use IDCAMS to ALTER / RENAME the new VSAM dataset to the name of the original VSAM dataset

Correct Answer: A relative record dataset (RRDS) consists of a specified number of areas called slots Each slot is identified by a relative record number (RRN) which indicates its relative position in the file

Correct Answer: Use the LISTCAT command

Correct Answer: End of file (10) Duplicate key (22) Record not found (23) VSAM logic error (90) Open problem (92) Space problem (93)

Correct Answer: Run VERIFY

Correct Answer: ESDS: Entry Sequence Data Set KSDS: Key Sequence Data Set RRDS: Relative Data Set

Correct Answer: If in application program IO-PCB is there then it is a online program In ENTRY statement IO-PCB must be listed first and then DB-PCB

Correct Answer: Key Fields - (PROCOPT=K) - Used to sequence the database and can't be changed - It is the field within a segment, used to identify the occurrence of the segment - Used to maintain the IMS segments in ascending sequence Search Fields - (PROCOPT=G) - Used to search for a segment, without the segment being sequenced on that field - A segment need not have a key or search field Both types of fields can be used to search the database

Correct Answer: Batch DL/I MPP Mode - (Message Processing Program) BMP Mode - (Batch Message Processing)

Correct Answer: An in-stream PROC is defined right in the jcl stream and doesn't reside in the proclib This is an older technique associated with punched cards but it is still in use with setup and installation programs from vendors for the in-line perform instead of: perform add-paragraph until switch = 'y' you can code perform until switch = 'y' body of code end-perform body of code is the code from add-paragraph appearing in-line (ie right in the perform) instead of in a separate paragraph (out of line code)