HTC Global Services Software Engineer Interview Questions and Answers for Experienced

VSAM file can be accessed using Alternate Index to allow both sequential and random record access.

• Alternate Index is a VSAM feature that allows records to be accessed randomly.

• Sequential access can be achieved by using the primary index.

• Alternate Index can be created using IDCAMS utility.

• COBOL programs can use VSAM file with Alternate Index.

• Alternate Index can improve performance by reducing I/O operations.

Dynamic mode file is a file that is created and modified during runtime.

• Dynamic mode files are created and modified during runtime

• They are not stored on disk, but in memory

• Examples include temporary files and buffers

Normalization is a process of organizing data in a database to reduce redundancy and improve data integrity.

• Normalization involves breaking down a table into smaller tables and establishing relationships between them.

• There are different levels of normalization, with each level having specific rules to follow.

• Normalization helps to prevent data inconsistencies and anomalies.

• Examples of normalization include converting r...read more