Diver down flag. A diver down flag, or scuba flag, is a flag used on the water to indicate that there is a diver below. Two styles of flag are in use. Internationally, the code flag alfa/alpha, which is white and blue, is used to signal that the vessel has a diver down and other vessels should keep well clear at slow speed.
Familiarize yourself with some friendly network cables and take a closer look at common types of network media, including twisted-pair cable, coaxial cable, fiber-optic cable, and wireless.
What are the different types of USB cables? There are a number of different USB cables each of which has different benefits and is suited to a different task. USB-A is most commonly used with computers, or power outlets, and can be used for charging devices, connecting devices to computers or data transfer.