You issue a GNP call from a program and receive a status code of GP. Referring to the above scenario, which one of the following describes the cause of this error?

technology databases

  1. The segment level specified is not lower than the level of the established parent.

  2. There are no more segments for this message.

  3. The program has issued a call where no parent segment exists.

  4. An invalid length has been detected on a variable length record.

Show answer
Correct Option: C

AI Explanation

To answer this question, you need to have an understanding of the GNP (Generalized Node Program) and the possible status codes it can return.

The GNP is a program that is used to manipulate hierarchical data structures called segments. When you issue a GNP call from a program, you can receive various status codes as a response, indicating the success or failure of the operation.

In this scenario, the status code received is GP, and the cause of this error is described as:

C. The program has issued a call where no parent segment exists.

This means that the program has attempted to perform an operation on a segment without a valid parent segment. In a hierarchical structure, segments are organized in a parent-child relationship, where a child segment is nested within a parent segment. In order to perform operations on a child segment, a valid parent segment must exist.

Since the program issued a call where no parent segment exists, the GP status code is returned to indicate this error.

Therefore, the correct answer is C. The program has issued a call where no parent segment exists.

Find more quizzes: