Final answer:
Fiber optic cable is the cable type that has a glass core within a rubber outer coating.
Step-by-step explanation:
The cable type that has a glass core within a rubber outer coating is fiber optic cable.
Fiber optic cables are made of thin strands of glass or plastic that transmit data using light signals, making them ideal for high-speed and long-distance communication.
The glass core of a fiber optic cable is surrounded by a protective outer coating, usually made of rubber, to provide mechanical strength and protect the delicate glass core from damage.