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CMN 170V Final Study Guide, Exams of Digital Communication Systems

CMN 170V Final Study Guide 2025

Typology: Exams

2024/2025

Available from 06/23/2025

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CMN |\170V |\Final |\Study |\Guide
Timeless |\Time |\refers |\to |\the |\fact |\that: |\- |\CORRECT |\ANSWERS |\✔✔the |\
combination |\of |\synchronous |\and |\asynchronous |\information |\
processing |\allows |\to |\negate |\sequence
The |\term |\"death |\of |\distance", |\as |\used |\here, |\implies |\that, |\thanks |\to |\
modern |\communication |\technology: |\- |\CORRECT |\ANSWERS |\✔✔Spatial |\
barriers |\are |\overcome |\more |\easily |\by |\faster |\communication
What |\is |\an |\example |\of |\a |\many-to-one |\communication |\in |\online |\social |\
networks? |\- |\CORRECT |\ANSWERS |\✔✔Liking |\a |\post
What's |\the |\difference |\between |\the |\Internet |\and |\the |\world |\wide |\web?
|\- |\CORRECT |\ANSWERS |\✔✔the |\internet |\is |\the |\physical |\infrastructure |\
and |\the |\world |\wide |\web |\is |\a |\generic |\service
Social |\Network |\Analysis |\exclusively |\applies |\to |\online |\networks |\like |\
Facebook. |\- |\CORRECT |\ANSWERS |\✔✔False
If |\you |\knew |\somebody, |\who |\knows |\somebody |\who |\knows |\the |\
President |\of |\the |\United |\States, |\how |\many |\degrees |\of |\separation |\were
|\you |\away |\from |\the |\President? |\- |\CORRECT |\ANSWERS |\✔✔3
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CMN |\170V |\Final |\Study |\Guide

Timeless |\Time |\refers |\to |\the |\fact |\that: |- |\CORRECT |\ANSWERS |\✔✔the |
combination |\of |\synchronous |\and |\asynchronous |\information |
processing |\allows |\to |\negate |\sequence The |\term |"death |\of |\distance", |\as |\used |\here, |\implies |\that, |\thanks |\to |
modern |\communication |\technology: |- |\CORRECT |\ANSWERS |\✔✔Spatial |
barriers |\are |\overcome |\more |\easily |\by |\faster |\communication What |\is |\an |\example |\of |\a |\many-to-one |\communication |\in |\online |\social |
networks? |- |\CORRECT |\ANSWERS |\✔✔Liking |\a |\post What's |\the |\difference |\between |\the |\Internet |\and |\the |\world |\wide |\web? |- |\CORRECT |\ANSWERS |\✔✔the |\internet |\is |\the |\physical |\infrastructure |
and |\the |\world |\wide |\web |\is |\a |\generic |\service Social |\Network |\Analysis |\exclusively |\applies |\to |\online |\networks |\like |
Facebook. |- |\CORRECT |\ANSWERS |\✔✔False If |\you |\knew |\somebody, |\who |\knows |\somebody |\who |\knows |\the |
President |\of |\the |\United |\States, |\how |\many |\degrees |\of |\separation |\were |\you |\away |\from |\the |\President? |- |\CORRECT |\ANSWERS |\✔✔ 3

The |\concept |\of |\the |"space |\of |\flows" |\refers |\to |\a |\reconceptualization |\of |
space |\due |\to |(among |\other |\things): |- |\CORRECT |\ANSWERS |\✔✔Faster |
communication, |\more |\possible |\communication |\directions, |\an |\an |
increased |\importance |\of |\your |\location |\in |\the |\network What |\is |\true |\with |\regard |\to |\positive- |\and |\negative |\network |
externalities: |- |\CORRECT |\ANSWERS |\✔✔positive |\network |\externality |
means |\the |\more |\people, |\the |\more |\benefit |\for |\everybody With |\ 4 |\phones, |\how |\many |\distinct |\phone |\calls |\were |\possible |(go |
ahead |\and |\count) |- |\CORRECT |\ANSWERS |\✔✔ 12 With |\ 5 |\phones, |\how |\many |\distinct |\phone |\calls |\were |\possible |(go |
ahead |\and |\count) |- |\CORRECT |\ANSWERS |\✔✔ 20 Why |\is |\Facebook |\interested |\in |\connecting |\everybody |\to |\Facebook? |- |
CORRECT |\ANSWERS |\✔✔to |\help |\them |\in |\finding |\access |\to |\educational |
information |\and |\to |\increase |\the |\positive |\network |\externalities |\of |\the |
Facebook |\network In |\digital |\products, |\most |\costs |\are |\related |\to: |- |\CORRECT |\ANSWERS |
✔✔Fixed |\costs According |\to |\media |\richness |\theory, |\which |\kind |\of |\communication |
channel |\should |\be |\used |\when |\talking |\about |\important |\business |\

Media |\concentration |\can |\work |\two |\ways: |\1- |\previous |\competitors |\can |
join; |\2- |\suppliers |& |\providers |\can |\join. |- |\CORRECT |\ANSWERS |\✔✔True Why |\should |\digital |\economies |\of |\scale |\foster |\horizontal |\ownership |
(among |\previous |\competitors)? |- |\CORRECT |\ANSWERS |\✔✔Fixed |\costs |
can |\be |\better |\exploited |\in |\producing |\the |\same |\product Which |\were |\the |\two |\characteristics |\he |\mentioned |\as |"culprits" |\for |\this |\increased |\media |\concentration? |- |\CORRECT |\ANSWERS |\✔✔economies |
of |\scale |\and |\network |\externalities Which |\were |\the |\two |\characteristics |\he |\mentioned |\as |"enablers" |\for |
online |\crowdsourcing? |- |\CORRECT |\ANSWERS |\✔✔Poly-directionality |
and |\death |\of |\distance What |\are |\some |\of |\the |\characteristics |\of |\digitalization |\that |\contribute |
to |\the |\reduction |\of |\transaction |\costs: |- |\CORRECT |\ANSWERS |
✔✔Timeless |\time, |\death |\of |\distance, |\economies |\of |\scale, |
algorithmization What |\are |\some |\of |\the |"transaction |\costs" |(in |\the |\sense |\economists |
use |\the |\word) |\involved |\in |\the |\retail |\music |\business? |- |\CORRECT |
ANSWERS |\✔✔costs |\associated |\w/ |\searching |\for |\music, |\costs |
associated |\w/ |\settling |\for |\a |\price |(including |\time |\it |\needs |\to |\compare |\

prices), |\distribution |\costs |\of |\music |(including |\sales |\person |\or |\an |
internet |\connection), |\enforcement |\costs |(including |\supervision |\of |\the |
seller |\and |\buyer If |\internal |\transaction |\costs |\are |\lower |\than |\external |\transaction |\costs, |\what |\does |\transaction |\cost |\theory |\predict: |- |\CORRECT |\ANSWERS |
✔✔the |\company |\will |\become |\bigger |(INSOURCE |\and |\do |\it |\all |
yourself) If |\you |\do |\a |\survey |\about |\people's |\opinion |\and |\then |\analyze |\it, |\is |\this |
empirical |\or |\theoretical? |- |\CORRECT |\ANSWERS |\✔✔Empirical The |\empirical |\leg |\of |\science |\is |\quantitative, |\while |\the |\theoretical |\leg |
is |\qualitative |- |\CORRECT |\ANSWERS |\✔✔False Digitalization |\affects |\both |\aspects |\of |\science: |\empirical |\data |\work |
(observations |\of |\the |\real-world), |\and |\theoretical |\modeling |
(hypothetical |\constructs) |- |\CORRECT |\ANSWERS |\✔✔True "Computational |\Social |\Science" |\is: |- |\CORRECT |\ANSWERS |\✔✔The |\use |\of |\computational |\tools |\for |\both |\theoretical |\and |\empirical |\work |\in |\the |
social |\sciences Big |\Data |\is |\best |\defined |\as |\very |\large |\databases |(often |\above |\ 1 |
petabyte) |- |\CORRECT |\ANSWERS |\✔✔False

Considering |\global |\income |\levels |\and |\average |\ICT |\expenditure |% |\of |
available |\income, |\the |\poorest |\ 20 |% |\of |\the |\world |\have |\as |\much |
available |\to |\spend |\on |\ICT |\per |\month: |- |\CORRECT |\ANSWERS |\✔✔Less |
than |\US |$ Digital |\Footprint: |- |\CORRECT |\ANSWERS |\✔✔Gives |\insight |\on |\society |\as |
a |\whole; |\information |\is |\always |\physical Timeless |\Time: |- |\CORRECT |\ANSWERS |\✔✔The |\social |\practice |\that |\aims |
at |\negating |\sequence |\to |\install |\ourselves |\in |\perennial |\simultaneity |
and |\stimulants |\ubiquity Poly-directionality: |- |\CORRECT |\ANSWERS |\✔✔Traditional |\organization |
of |\communication |\flow |\from Degree |\Centrality: |- |\CORRECT |\ANSWERS |\✔✔most |\connected, |\highest |
number |\of |\links Closeness |\Centrality: |- |\CORRECT |\ANSWERS |\✔✔Counting |\the |\degrees |
of |\separation Betweenness |\Centrality: |- |\CORRECT |\ANSWERS |\✔✔The |\connection |\who |\is |\hit |\the |\most

Eigenvector |\Centrality: |- |\CORRECT |\ANSWERS |\✔✔Focusing |\on |\who |\you |\know |(friends |\of |\friends) Network |\Externalities: |- |\CORRECT |\ANSWERS |\✔✔When |\the |\value |\of |\a |
product |\to |\one |\user |\depends |\on |\how |\many |\other |\users |\there |\are, |
economist |\say |\that |\the |\product |\exhibits |\network |\externalities |\or |
network |\effects