VSAM MCQ Quiz With Answers

Yes, VSAM files can be accessed by both Batch and CICS. CICS (Customer Information Control System) is a transaction processing system that allows online access to applications and databases. It provides a way to interact with VSAM (Virtual Storage Access Method) files in real-time, allowing users to access and update data stored in these files during online transactions. Therefore, the correct answer is "Yes in CICS transaction server."

ZFS files have a metadata log, which means that in the event of a disaster, these files can be recovered. This implies that the metadata log in ZFS allows for the restoration of data even after a catastrophic event. Therefore, the statement "ZFS files are recoverable" is true.

This is used to share each record by batch process.

The correct answer is true because KSDS (Key Sequenced Data Set) is a type of VSAM (Virtual Storage Access Method) file organization that contains both Relative Data Format (RDF) and Control Interval Data Format (CIDF). On the other hand, RRDS (Relative Record Data Set), ESDS (Entry Sequenced Data Set), and LDS (Linear Data Set) are all different types of data components used in mainframe systems. Therefore, the statement is true as it correctly highlights the difference between KSDS and the other data components.

The correct answer suggests that although ESDS (Entry Sequenced Data Set) records cannot be deleted, the programmer can still simulate the deletion by setting a flag that marks the record as inactive. This means that the record is technically still present in the dataset, but it is considered inactive and will not be accessed or used in any further processing. This approach allows the programmer to achieve the desired outcome of "deleting" a record while working within the limitations of ESDS.

In the context of the RRDS (Relative Record Data Set) cluster, the keyword "NUMBERED" is used in the IDCAMS DEFINE command. This keyword is used to specify that the records in the RRDS cluster are to be numbered sequentially. By using this keyword, each record in the cluster will have a unique number associated with it, allowing for easy identification and retrieval of specific records within the cluster.

The KSDS Load process is carried out with sequential access instead of direct access. This means that the records are read and loaded into the KSDS (Key Sequenced Data Set) in a sequential manner, one after the other. Sequential access is typically used when the records are stored in a specific order and need to be processed in that order. In contrast, direct access allows for accessing specific records directly without having to go through the entire dataset sequentially. Therefore, the statement "KSDS Load process is carried with Sequential access instead of Direct access" is true.

DITTO is indeed one of the tools used to work with VSAM files.

The record format for a VSAM file is Variable Blocked (VB). In this format, each record in the file can have a different length, and records are grouped into blocks of data. This allows for efficient storage and retrieval of variable-length records. The other options, FBA (Fixed Blocked) and FB (Fixed Blocked), are not the correct formats for a VSAM file.

VSAM (Virtual Storage Access Method) is a file storage access method used in mainframe computers. While it is not a relational database management system (RDBMS) like DB2, it is still possible to query data stored in a VSAM file. VSAM provides various access methods, such as sequential, random, and indexed, which can be used to retrieve and manipulate data. Therefore, although it may not have the same capabilities as DB2, querying on a VSAM file is still possible.

LDS. This linear sequential VSAM file

CEMT I FILE(FILENAME)

A VSAM data set can be classified into two broad parts: the data component and the index component. The data component contains the actual records or data stored in the data set, while the index component contains the index entries that allow for efficient access and retrieval of the data. These two components work together to provide efficient storage and retrieval capabilities in a VSAM data set.