Network ++ Chapter 5 – Flashcards
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Cat5 (Test wanted Cat5e, which contradicts book)
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What is the minimum category of UTP cable required in order to support Gigabit speeds?
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MT-RJ
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Which of the following connectors is the most common for multimode fiber?
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WDM divides a beam of light into up to 40 different wavelengths or colors
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WDM divides a beam of light into how many different wavelengths or colors?
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baseband
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Ethernet is an example of what type of technology?
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A type of coaxial cable that is characterized by an impedance of 75 ohms and contains an 18 AWG conducting core. The core is usually made of solid copper. RG-6 coaxial cables are used, for example, to deliver broadband cable Internet service and cable TV, particularly over long distances.
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Which option below reflects the standard impedance of an RG-6 cable?
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Modem
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A device that is responsible for modulating digital signals into analog signals, and demodulating analog signals into digital signals at the receiving end, is known as?
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WDM (Wanted CWDM, which is Course Wavelength Division Multiplexing)
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Which type of multiplexing is defined by wavelength instead of frequency?
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Frequency
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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?
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DWDM
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The most common multiplexing technology used in conjunction with fiber optics is which option below
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Sheath
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What term below is used to describe the outer-most layer of protective covering of a coaxial cable?
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True
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Multimode fiber contains a core that is larger than a single mode fiber core.
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False (Console Port?)
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A serial cable with an RJ-45 connector is capable of being used through an RJ-45 Ethernet port.
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False
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Because digital signals do not depend on amplitude or frequency differences to communicate information, they are more vulnerable to EMI noise.
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True
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Digital signals are composed of pulses of precise, positive voltages and zero voltages.
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True
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A continuity tester should not be used on a live network segment.
