____ Query Optimization Means That the DDBMS Finds the Most

question 17

Multiple Choice

____ query optimization means that the DDBMS finds the most cost-effective access path without user intervention.

• A) Static
• B) Dynamic
• C) Automatic
• D) Commit

---

Definitions:

M/Z Values

In mass spectrometry, a ratio of the mass to the charge number of ions, used to identify and quantify substances in a sample.

Molecular Ions

Ions composed of more than one atom, formed when a molecule gains or loses electrons.

Molecular Ion Peak

The peak in a mass spectrum that corresponds to the mass of the intact molecule, often used for molecular weight determination.

Boron Isotopes

Variants of the element boron, differing in the number of neutrons in the nucleus and having distinct nuclear properties.