Multiple Choice
Identify the
letter of the choice that best completes the statement or answers the question.
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1.
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____
are documented agreements containing technical specifications or other precise criteria that
stipulate how a particular product or service should be designed or performed. a. | Protocols | c. | Sessions | b. | Standards | d. | Routers | | | | |
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2.
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Protocols in the ____ layer coordinate and maintain communications between two
nodes on the network. a. | Application | c. | Data link | b. | Physical | d. | Session | | | | |
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3.
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____
is a method of identifying segments that belong to the same group of subdivided
data. a. | Reassembly | c. | Sequencing | b. | Fragmentation | d. | Addressing | | | | |
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4.
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Connectivity devices such as hubs and repeaters operate at the ____
layer. a. | Session | c. | Application | b. | Physical | d. | Network | | | | |
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5.
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A
wave’s ____ is a measure of its strength at any given point in time. a. | voltage | c. | attenuation | b. | amplitude | d. | baseband | | | | |
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6.
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____
is a measure of the highest frequency of signal a multimode fiber can support over a specific
distance and is measured in MHz-km. a. | Broadband | c. | Latency | b. | Modal
bandwidth | d. | Plenum | | | | |
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7.
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A
patch cable in which the termination locations of the transmit and receive wires on one end of the
cable are reversed is known as a(n) ____. a. | media converter | c. | conduit | b. | multimode
fiber | d. | crossover
cable | | | | |
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8.
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The
geographical area that an antenna or wireless system can reach is known as its
____. a. | range | c. | bend
radius | b. | frequency | d. | ferrule | | | | |
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9.
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In
____, a transmitter concentrates the signal energy at a single frequency or in a very small range of
frequencies. a. | structured
cabling | c. | Webcasting | b. | narrowband | d. | broadband | | | | |
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10.
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When
a data transmission involves only one transmitter and one receiver, it is considered a(n) ____
transmission. a. | enhanced | c. | full-duplex | b. | crossover | d. | point-to-point | | | | |
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11.
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____
is 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. a. | Latency | c. | Modulation | b. | Impedance | d. | Frequency | | | | |
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12.
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____
signals are composed of pulses of precise, positive voltages and zero voltages. a. | Analog | c. | Narrowband | b. | Digital | d. | Optical | | | | |
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13.
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____
Ports are in the range of 0 to 1023 and are assigned to processes that only the operating system or
an administrator of the system can access. a. | Dynamic | c. | Private | b. | Well
known | d. | Registered | | | | |
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14.
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____
Ports are in the range of 1024 to 49151. a. | Registered | c. | Well known | b. | Dynamic | d. | Private | | | | |
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15.
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____
is an Application layer protocol used to send and receive files via TCP/IP. a. | PING | c. | NNTP | b. | Telnet | d. | FTP | | | | |
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16.
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____
facilitates the exchange of newsgroup messages between multiple servers and users. a. | FTP | c. | Telnet | b. | NNTP | d. | PING | | | | |
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17.
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In
a(n) ____ topology, each node is connected to the two nearest nodes so that the entire network forms
a circle. a. | ring | c. | star | b. | bus | d. | star-wired | | | | |
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18.
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As
long as a station is on and has its wireless protocols running, it periodically surveys its
surroundings for evidence of an access point, a task known as ____. a. | switching | c. | scanning | b. | probing | d. | reassociation | | | | |
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19.
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Multiple Bluetooth piconets can be combined to form a(n) ____. a. | packet | c. | serial
backbone | b. | scatternet | d. | Ethernet | | | | |
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20.
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____
occurs when two nodes simultaneously check a channel, determine that it is free, and begin to
transmit. a. | Jamming | c. | Circuit
switching | b. | Collision | d. | Association | | | | |
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