Multiple choice technology databases

A segment has 3 occurrences for a parent. This segment is called a ________

  1. Multiple

  2. Twin

  3. Sibling

  4. None of These
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

In IMS hierarchical databases, when a parent segment has multiple child segment occurrences with the same segment type, they are called twins. Siblings are different segment types under the same parent, while multiple is not an IMS term.

AI explanation

In IMS/DL-I hierarchical databases, when a parent segment occurrence has multiple occurrences of the same child segment type underneath it, those repeated occurrences are called "twins." (The first occurrence is sometimes called the "twin root" and subsequent ones are twins of it.) "Sibling" is a more generic/informal term not used in IMS terminology for this specific relationship, and "Multiple" isn't a defined IMS term at all. So "Twin" is the correct, standard terminology.

Keep practicing — related questions