Final answer:
The statement that a private cloud can be extended by adding physical servers to a public cloud is false; this would create a hybrid cloud environment. The reference statement about high-voltage wires being insulated is also false; while insulating connectors are used, the wires themselves are generally unwrapped, relying on air as an insulator.
Step-by-step explanation:
The statement "A company can extend a private cloud by adding its own physical servers to the public cloud" is false. This is because a private cloud and a public cloud are distinct types of cloud computing environments. A private cloud is a proprietary network or a data center that supplies hosted services to a limited number of people, whereas a public cloud is a service offered by third-party providers over the public internet, making it available to anyone who wants to use or purchase it. You cannot extend a private cloud by adding servers to a public cloud; instead, you would be creating a hybrid cloud by utilizing both public and private cloud resources.
To address the true or false statement provided for reference, "The high-voltage wires that you see connected to tall metal-frame towers are held aloft by insulating connectors, and these wires are wrapped in an insulating material," the correct answer is false. High-voltage wires, also known as power lines, are indeed held aloft by insulating connectors to prevent the electricity from grounding through the towers. However, the high-voltage wires themselves are typically not wrapped in insulating materials because they are separated by enough distance to prevent arcing and are too high to be reached by people or objects on the ground. The air itself acts as an insulator.