The Correct Answer Is "A"

Explanation: This question addresses PPR Competency 009:
The teacher incorporates the effective use of technology to plan, organize, deliver, and evaluate instruction for all students.

LAN stands for local area network. A local area network is a short-distance (typically, less than 500 meters) network used to link a group of computers together within a building. Ethernet is the most commonly used form of LAN. A piece of hardware called a hub serves as the common wiring point, enabling individual users to communicate through email, to send or receive files, and to share access to files and data. Each computer connected to a LAN is called a node. Personal computers on a school campus are commonly connected in a LAN, making it easy for the teachers to share information. Choice A is the correct response. The teachers probably will use this technology to communicate with each other through email. The other response choices are not options available through a LAN. Those capabilities would require a Wide area network (WAN), which can be made up of interconnected smaller networks spread throughout a building, a district, a state, or the world. The Internet itself is considered a WAN.

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