VSAM Realtime Interview Questions.
Please use the comment section to answer.
- Explain what do you mean by a sequence set?
- What do you mean by index set in VSAM?
- Explain how many buffers are allotted to VSAM KSDS and ESDS ?
- Can you describe some pf the main disadvantages of using a VSAM dataset ?
- What is free space? Explain how it is determined.
- What is the meaning of dynamic processing in VSAM? How do we achieve it?
- Name some common VSAM error conditions and codes.
- What do you mean by a VSAM split?
- Explain what is the base cluster in VSAM?
- Do primary key values have to be unique? Do alternate key values have to be unique?
- In the COBOL SELECT statement what is the ORGANIZATION for a KSDS?
- In the COBOL SELECT statement for a KSDS what are the three possibilities for ACCESS?
- What is the COBOL RECORD KEY clause?
- What is the main purpose of the FILE STATUS clause in the SELECT statement?
- If you wish to use the REWRITE command how hould the VSAM file be opened?
- Explain the meaning and syntax for the START command.
- What is the VSAM-code field ?
- What do you mean by a VSAM slot ?
- What is the utility program closely associated with VSAM?
- In VSAM we have about seven IDCAMS commands.Can you name them and explain each of them with examples?
- Explain what are the three levels of definition for the VSAM DEFINE?
- What is the main significance of the SHAREOPTIONS parameter in VSAM?
- Can you tell me what is the meaning of the DEFINE MODEL parameter?
- What do you mean by File Status in VSAM ?
- What is a LDS (Linear Data Set )? Explain its usage.
- What do you mean by IDCAMS in VSAM?
- Can you run AMS commands from the TSO prompt ?
- Can you tell me the syntax of AMS modal commands in VSAM?
- Under IDCAMS, multiple functions can be executed, each of which returns a condition code. What will be the condition code returned to the operating system ?
- Explain what does the command FREESPACE do in VSAM ?
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