Understand the components and benefits of an IMS Database system
Describe the processing of a database record in hierarchic sequence
Identify the different IMS database organization types
Understand the differences between Database Description (DBD) and Program Specification Block (PSB) control blocks
Contrast the requirements and effects of sequential versus direct access of database segments
Explain the reasons for the use of secondary indexes and logical relationships
Contrast full-function and Fast Path database organizations
List the basic IMS Data Communications functions of the IMS Transaction Manager (IMS/TM)
Identify the roles of messages, queues, and logical terminal names
Explain the different scheduling characteristics of the IMS/TM regions types: Message Processing, Batch Message Processing, and Interactive Fast Path
Describe the role of commit points in recovery and restart
Identify the functions of dynamic and batch backout, the system log and the benefits of periodically backing up a database
Explain the capabilities of a conversational program and its implications on processing and performance
Describe the function of Database Recovery Control (DBRC), Integrated Resource Lock Manager (IRLM) for data sharing and distributed processing
Understand how DB2 data can be accessed by IMS TM, IMS DB databases can be accessed through the DBCTL interface by CICS, and how IMS DB data and IMS TM transactions can be accessed from the internet