Network + Chapter 5

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Digital signals are composed of pulses of precise, positive voltages and zero voltages.​


Because digital signals do not depend on amplitude or frequency differences to communicate information, they are more vulnerable to EMI noise.​


What two items below are commonly expressed as bits transmitted per second?

​throughput, ​bandwidth

​What two connector types are typically used to terminate RG-6 and RG-59 cables?

​f-connectors, ​BNC

What is the maximum supported throughput and bandwidth / signal rate of Cat 5e?

1000 Mbps

What Ethernet standard below is also referred to as "thinnet"?​


How many cable pairs are needed for 1000Base-T transmission over CAT5e cable?​


Standard PoE devices ​must be provided with how much power in order to function?

​15.4 watts

What type of cross-talk occurs between wire pairs near the source of a signal? ​

​near end cross talk

Which of the following connectors is the most common for multimode fiber?​


​A measure of a signal’s strength at any given time is known as which term below?


The number of times that a wave’s amplitude cycles from its starting point, through its highest amplitude and its lowest amplitude, and back to its starting point over a fixed period of time, is known as ​what term below?


Phone companies make use of what type of multiplexing in order to allow for phone services and DSL services over the same line?​


The most common multiplexing technology used in conjunction with fiber optics is which option below?​


Since cable TV and cable ​Internet can share the same coaxial cable, they are considered to be what type of technology?


The amount of data that a medium transmits during a given period of time.


An unwanted connection, such as when exposed wires touch each other.​

short circuit​

A multiplexing technique used over single-mode or multimode fiber-optic cable in which each signal is assigned a different wavelength for its carrier wave.​

​DWDM (Dense Wavelength Division Multiplexing)

A Physical layer standard for networks that

achieves 1 Gbps over Cat 6 or better cabling using only two

pairs of wires.


Physical layer standard for networks that specifies 1-Gbps transmission over fiber-optic cable using baseband transmission, relying on 1300 nanometer wavelengths.​


A character encoding system consisting of 128 characters.​


A form of transmission that allows multiple signals to travel simultaneously over one medium.​


The distance between corresponding points on a wave’s cycle, expressed in meters or feet.


A term used to refer to a type of twisted-pair cable. All of the category cables fall under the TIA/EIA 568 standard.Cross-talk measured at the far end of the cable from the signal source. ​

Cat (category)​

Cross-talk measured at the far end of the cable from the signal source. ​

far end cross-talk (FEXT)​

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