1. What is the maximum of key fields and search fields allowed in a segment?
Key fields - Only 1
Search fields - No limitation
2. What is the maximum number of PCBs allowed in a PSB?
Any number more than 1 (no limitation)
3. What are the two ways in which DL/I interface can be invoked?
► By making a call to IBM supplied program CBLTDLI / ASMTDLI / PLITDLI
(most commonly used method) by - Passing a PCB, or Passing an AIB
► By invoking the EXEC-DLI CICS interface by Passing a PCB, or Passing an AIB
Max. number of fields per segment = 255
Max. number of fields per database = 1000
8. What are the retrieval sequences in IMS DB?
► Top to Bottom
► Front to Back
► Left to Right
9. Can we use PROCOPT on PCB and Segment field (SENSEG)?
Yes, we can use the PROCOPT on PCB macro (at database level) or sensitive segment macro (at segment level).
10. What is meant by BMP mode?
It is of two types:
Transaction oriented
► Can read and write to online message queues.
► Can process online files and databases.
Batch oriented
► Can only read message queues.
► Access online databases in Batch mode