Full-feature OTDRs, also known as platform OTDRs, have which modules as options?

Full-feature OTDRs (Optical Time Domain Reflectometers), also known as platform OTDRs, are equipped with a variety of capabilities to test and analyze fiber optic networks effectively. The correct answer focuses on chromatic dispersion and polarization mode dispersion (PMD) as options in these advanced OTDRs.

Chromatic dispersion refers to the phenomenon where different wavelengths of light travel at different speeds through a fiber, which can result in signal distortion over long distances. PMD, on the other hand, is a form of signal degradation that occurs due to variations in the refractive index of the fiber core, causing different polarization states to travel at different speeds. Both of these modules allow technicians to assess the quality and performance of fiber optic cables and to ensure that issues related to dispersion are identified and mitigated during installation or maintenance.

The other options, while they might be relevant to general fiber optic tests or functionalities, do not specifically relate to the advanced capabilities that defined platform OTDRs. Power level and signal modulation, although important for testing, are not unique to the specialized functions of an OTDR. Network topology and segment identification may pertain more to network design and planning rather than the specific testing capabilities of the OTDR. Lastly, laser alignment and