Final answer:
A covalent bond exhibits solvent-independent, constant bond strength due to its bond dissociation energy, which is not affected by the surrounding environment.
Step-by-step explanation:
The type of bond or interaction that displays solvent-independent, constant bond strength is a covalent bond. Unlike intermolecular forces such as London dispersion forces, dipole-dipole interactions, and hydrogen bonding, which can vary based on the surrounding environment and are relatively weaker, covalent bonds exhibit consistent strength regardless of the solvent. This is because covalent bond strength is determined by the bond dissociation energy, which is a fixed value for each specific bond and is not influenced by the medium in which the molecule resides.