Chap 4+5 Networking Quiz

8 September 2022
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question
The strength of an electrical signal is directly proportional to its frequency.
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False
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Ethernet is an example of a baseband system found on many LANs.
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True
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The maximum distance a signal can travel and still be interpreted accurately is equal to a segment's maximum length.
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True
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The distance between corresponding points on a wave's cycle is called its ____.
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Wavelength
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The byte 00001110 means ____ on a digital network.
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14
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When signals are free to travel in both directions over a medium simultaneously, the transmission is considered ____.
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Full-duplex
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The data transmission characteristic most frequently discussed and analyzed by networking professionals is ____.
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Throughput
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The most significant factor in choosing a transmission method is its ____.
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Troughput
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Modern LANs use ____ or higher wiring.
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Cat 5
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____ describes a popular serial data transmission method.
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RS-232
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The serial interface on the back of the connectivity device is often labeled "____."
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Console
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Which standard is also known as structured cabling?
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Commercial Building Wiring Standard
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Which term identifies a room containing connectivity for groups of workstations in its area?
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telecommunications closet
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Many network problems can be traced to poor cable ____ techniques.
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Installation
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Every pulse in a digital signal.
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Bit
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Part of a network that contains end nodes.
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populated segment
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Part of the network that does not contain end nodes.
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unpopulated segment
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Technology used to modify analog signals to make them suitable for carrying data over a communication path.
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data modulation
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Transmission that involves one transmitter and multiple, undefined receivers.
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broadcast
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Transmission that issues signals to multiple, defined recipients.
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nonbroadcast
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Transmission form in which (typically) digital signals are sent through direct current (DC) pulses applied to the wire.
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baseband
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A common source of noise.
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EMI (electromagnetic interference)
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A form of transmission in which signals are modulated as radio frequency (RF) analog waves that use different frequency ranges.
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broadband
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The term phase refers to the progress of a wave over time in relationship to a fixed point.
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True
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RG-8 is a type of coaxial cable that is characterized by an impedance of 75 ohms and contains an 18 AWG conducting core.
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False
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A vertical cross-connect runs between a building's floors.
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True
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The term ____ refers to 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
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Frequency
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A(n) ____ is crimped, compressed, or twisted onto a coaxial cable. It connects to another BNC connector via a turning and locking mechanism β€” this is the bayonet coupling referenced in its name.
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BNC Connector
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____ , also known as the main cross-connect, is the first point of interconnection between an organization's LAN or WAN and a service provider's facility.
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Main Distribution Frame
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Modulation can be used to make a signal conform to a specific pathway.
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True
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Latency occurs when a signal traveling on one wire or cable infringes on the signal traveling over an adjacent wire or cable.
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False
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A digital signal composed of a pulse of positive voltage represents a(n) ____.
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1
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In modulation, a simple wave called a(n) ____ wave, is combined with another analog signal to produce a unique signal that gets transmitted from one node to another.
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Carrier
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____ is a technology used with fiber-optic cable, which enables one fiber-optic connection to carry multiple light signals simultaneously.
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WDM (Wavelength division multiplexing)
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One of the most common transmission flaws affecting data signals is ____.
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Noise
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Serial refers to a style of data transmission in which the pulses that represent bits follow one another along a ____ transmission line.
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Single
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Which connector is used in RS-232 transmissions?
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DB-25
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Which term describes the hardware that makes up the enterprise-wide cabling system?
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Cable Plant
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The points where circuits interconnect with other circuits is known as ____.
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Cross Connect Facilities
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____ describes wiring that connects workstations to the closest telecommunications closet.
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Horizontal Wiring
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Noise and devices connected to the transmission medium can further limit throughput.
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True
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The more twists per foot in a pair of wires, the more resistant the pair will be to cross talk.
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True
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A ____ is a piece of hardware that enables networks or segments running on different media to interconnect and exchange signals.
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Media Convertor
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____ is a form of UTP that contains four wire pairs and can support up to 16 Mbps throughput.
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Cat 4
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It is best to perform connectivity tests on a computer connected to a live network.
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False
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Cut-through switches can detect corrupt packets.
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False