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IMS DB Practice Test
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Avg score: 80% • Most missed: “A ____ is generated by combining groups of related data.”

IMS DB is a DBMS from IBM that helps you organize business data with both program and device independence. Hierarchical databases and data manipulation language (DL/I calls) are at the heart of IMS DB.


IMS DB vs DB2: IMS is a hierarchical data base; DB2 is a relational data base

IMS DB Practice Test
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25 Questions

1. DPCK stands for ____.
2. Concatenating keys is done using ____ command code.
3. DBDGEN is a ____.
4. The last byte of unqualified SSA always contains ____.
5. In IMS, the task of the ____ is to operate as a platform for communication between the application programs and the database.
6. ____ is the term used to describe when a program occupies more than one position in the IMS database.
7. The PSB contains how many PCB for each DL/I database the application program will access?
8. Which of the following comprises application programs that grant access to the data stored in the database?
9. The IMS database structure can only have how many root segments?
10. Does the IMS database management system maintain integrity?
11. IMS was developed by which of the following company?
12. A ____ is a stage where the database changes done by the application program are considered complete and accurate.
13. Two or more segment occurrences of a particular segment type under a single parent segment are called ____ segments.
14. GN code is used for the ____.
15. Can we change the value of a key field using a REPL call?
16. Each segment of data contains a ____.
17. Which of the following specifies how the IMS database is organized and how an application may access it?
18. IMS can use ____ as its back-end database to store the data?
19. Each segment type can have ____ parent, according to a rule in the IMS database.
20. PSB stands for ____.
21. Which of the following is the segment that sits at the top of the hierarchy?
22. 'GU' code is used for the ____.
23. IMS applications and data can be accessed over any platform. True or False?
24. How many types of logical relationships are there?
25. Is it necessary that the index source segment and the target source segment should be the same?

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