Optical fiber cable can be installed in which of the following ways?

Optical fiber cable is highly versatile and can be installed in multiple environments and configurations, making "Any of these" the correct choice. Each method of installation has its own benefits and potential application scenarios.

Direct burial is a method where the fiber cable is installed directly in the ground without additional protective casing, making it suitable for certain terrains and installations that do not require high levels of protection from physical threats.

Installing fiber cable underground in conduit provides a robust layer of protection, shielding the cables from environmental factors and mechanical damage while allowing for ease of future maintenance or upgrades. The conduit also helps to manage moisture and other risk factors.

Aerial cables utilize poles and overhead infrastructure for installation, which can be practical in urban areas where underground installation is cost-prohibitive or impractical. This method allows for easier access for repairs and installations and minimizes disruption to existing ground structures.

The adaptability of optical fiber cable supports all these installation methods based on the specific needs of the environment and the project requirements. Each installation method addresses different aspects of durability, accessibility, and protection, allowing for a wide range of applications in various settings.