Network components are comprised of end devices such as laptop computers and mobile phones, and network infrastructure devices such as Ethernet switches and routers. Refer to the online course to view this video. Network Infrastructure (2.2.2) The path that a message takes from its source to destination can be as simple as a single cable…
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Peer-to-Peer Networks – 100-150 Study Guide
Client and server software usually run on separate computers, but it is also possible for one computer to run both client and server software at the same time. In small businesses and homes, many computers function as the servers and clients on the network. This type of network is called a peer-to-peer (P2P) network. The…
Network Components, Types, and Connections – 100-150 Study Guide
Objectives Upon completion of this chapter, you will be able to answer the following questions: • What are the roles of clients and servers in a network? • What are the roles of network infrastructure devices? • What are ISP connectivity options? Key Terms This chapter uses the following key terms. You can find the…
Throughput – 100-150 Study Guide
Like bandwidth, throughput is the measure of the transfer of bits across the media over a given period of time. However, due to a number of factors, throughput does not usually match the specified bandwidth. Many factors influence throughput including: • The amount of data being sent and received over the connection • The types…
Common Methods of Data Transmission – 100-150 Study Guide
After the data is transformed into a series of bits, it must be converted into signals that can be sent across the network media to its destination. Media refers to the physical medium on which the signals are transmitted. Examples of media are copper wire, fiber-optic cable, and electromagnetic waves through the air. A signal…
Sensors and Actuators – 100-150 Study Guide
Connected sensors can provide temperature, humidity, wind speed, barometric pressure, and soil moisture data. Actuators can then be automatically triggered based on current conditions. For example, a smart sensor can periodically send soil moisture data to a monitoring station. The monitoring station can then send a signal to an actuator to begin watering. The sensor…
Smartwatch – 100-150 Study Guide
A smartwatch (Figure 1-8) can connect to a smartphone to provide the user with alerts and messages. Additional functions, such as heart rate monitoring and counting steps, like a pedometer, can help people who are wearing the device to track their health. Figure 1-8 An Example of a Smartwatch Smart Glasses A wearable computer in…
Local Networks – 100-150 Exam Study Guide
Local networks come in all sizes. They can range from simple networks consisting of two computers, to networks connecting hundreds of thousands of devices. Networks installed in small offices, or homes and home offices, are referred to as small office/home office (SOHO) networks. SOHO networks let you share resources such as printers, documents, pictures, and…
Communication in a Connected World – 100-150 Exam Study Guide
Objectives Upon completion of this chapter, you will be able to answer the following questions: • What is the concept of a network? • What is network data? • What is network transmission speed and capacity? Key Terms This chapter uses the following key terms. You can find the definitions in the Glossary. bandwidth Internet…