Communications and Networks Which of the following terms is an electrical disturbance that can degrade communications? The amount of data, instructions, and information that can travel over a communications channel sometimes is called which of the following? Bandwidth. Which of the following is true of DSL? What do you call the amount of data instruction and information that can travel over transmission
media? bandwidth. Amount of data/instructions/information that can travel over transmission media. body area network. Which of the following refers to any type of hardware capable of transmitting data instructions and information between a sending device and a receiving device? A communications device is any type of hardware capable of transmitting data, instructions, and information between a sending device and a receiving device. One type of
communications device that connects a communications channel to a sending or receiving device such as a com- puter is a modem. Which of the following is a LAN that uses no physical wires? BLAN. WLAN. Wireless LAN What are the different types of electrical
disturbances?
The common electrical disturbances that you encounter at your home (but might not know what the disturbance is exactly called) are: POWER SURGE A surge is a condition when there is a sudden increase in the voltage level above the designated or say normal level. How can electrical disturbances be prevented or prevented? The electrical disturbances sometime cause heavy damage and loss of property. But by installing the correct and effective preventive measure
electrical devices can be protected in many such conditions. QuestionAnswer ___________ refers to is an electrical disturbance that can degrade communications
noise
This kinds of cable consists of a single copper wire surrounded by at least three layers: an insulating material, a woven or braided metal, and a plastic outer coating?
coaxial
Is the amount of data that can travel over a communications channel?
What is a land that uses no physical wires?
Which of the following is LAN that uses no physical wires?
Wireless LAN is a LAN that uses no physical wires to connect to devices.
What to do about interference with TV signals?
If you cannot determine the source of the electrical interference, contact the customer service department of your local power company. Most power companies will investigate the problem and take steps to correct it.
What causes interference with a cell phone signal?
Interference may prevent reception altogether, may cause only a temporary loss of a signal, or may affect the quality of the sound or picture produced by your equipment. The two most common causes of interference are transmitters and electrical equipment. Transmitter interference.
____27.A(n) ____ line is any of several types of long-distance digital telephone lines that carry multiplesignals over a single communications line.a.ATMc.DSLb.ADSLd.T-carrier
____28.Telephone networks, the Internet, and other networks with large amounts of traffic use ____.
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____29.A(n) ____ device is any type of hardware capable of transmitting data, instructions, and informationbetween a sending device and a receiving device.
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____30.A(n) ____ card is a USB network adapter, ExpressCard module, PC Card, or flash card that enablesa computer or device to access a network.
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____31.A(n) ____ is a communications device that connects multiple computers or routers together andtransmits data to its correct destination on the network.a.multiplexerc.routerb.concordd.index
____32.Most home networks use a Wi-Fi network, which sends signals through the air at distances of up to____ feet in some configurations.
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____33.All of the following are types of wired home networks EXCEPT ____.
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____34.The amount of data, instructions, or information that can travel over a communications channelsometimes is called the ____.
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____35.Physical transmission media used in communications include ____ cable.a.twisted-pairc.fiber-opticb.coaxiald.all of the above
____36.____ is an electrical disturbance that can degrade communications.