xx xx
Business Data xx
Communications
xx
and Networking,
xx xx
13th Edition by
xx xx xx
FitzGerald, Dennis,
xx xx
Durcikova
xx
, Chapter 1 xx
Introduction to Data Communications
xx xx xx
True-False Questions
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The x x following x x are x x possible xx True/False x x questions x x for x x tests. xx The x x statement x x is x x given
x x and xx the x x answer x x is x x provided x x in x x square x x brackets. x x The x x level x x of x x difficulty
x x (easy, x x moderate, x x difficult) x x and x x the x x page x x number(s) xxrelevant xxto xxthe xxtopic xxare
xxalso xxfurnished.
1. According xxto xxJohn xxChambers, xxCEO xxof xxCisco xx(a xxleading xxnetworking xxtechnology
xxcompany), x x the xxinformation xxage xxis xxthe xxsecond xxIndustrial xxRevolution.
Answer:True Difficulty:xxEasy Reference: xx xx p. xx4
2. Due xxto xxrecent xxadvances xxin xxhigh xxspeed xxcommunication xxnetworks, xxthe xxinformation
xxlag, xxor xxthe x x time xxit xxtakes xxfor xxinformation xxto xxbe xxdisseminated xxaround xxthe
xxworld, xxhas xxbeen xxsignificantly x x shortened.
Answer:True Difficulty: x x Easy Reference: xx x x p.4
3. One xxperspective xxof xxdata xxcommunications xxand xxnetworking xxas xxstated xxin xxthe xxtextbook,
xxexamines x x the xxmanagement xxof xxnetworking xxtechnologies, xxincluding xxsecurity,
xxnetwork xxdesign, xxand x x managing xxthe xxnetwork xxon xxa xxday-to-day xxbasis xxand xxlong
xxterm xxbasis.
Answer:True Difficulty: x x Moderate Reference: xx x x p. xx5
4. The xxfirst xxelectronic xxdata xxcommunication xxsystem xxwas xxthe xxtelephone xxdeveloped xxby
xxAlexander x x Graham xxBell.
Answer:False Difficulty:xxEasy Reference: xx xx p. xx5
5. The xxfirst xxtranscontinental xxtelephone xxservice xxwas xxestablished xxin xxthe xx1940s.
Answer:False Difficulty:xxEasy Reference: xx xx p. xx6
6. An xxInter-Exchange xxCarrier xx(IXC) xxprovides xxonly xxlocal xxtelephone xxservices xxto
xxhomes xxand x x businesses.
Answer: xxFalse Difficulty: x x Easy Reference: xx xx p. xx6
7. Common xxcarriers xxinclude xxthe xxRBOCs, xxIXCs, xxand xxCable xxTV xxcompanies.
Answer:True Difficulty:xxModerate Reference: xx xx p. xx7
8. The xxTelecommunications xxAct xxof xx1996 xxnow xxpermits xxthe xxRBOCs xxto xxprovide
xxlong xxdistance x x outside xxthe xxregion xxin xxwhich xxthey xxprovide xxlocal xxtelephone
xxservices.
Answer: xxTrue Difficulty:xxModerate Reference: xx x x p. xx7
9. The xxInternet xxwas xxstarted xxby xxthe xxU.S. xxDepartment xxof xxdefense xxin xx1969 xxas xxa
xxnetwork xxof xxfour x x computers xxcalled xxARPANET.
Answer: xxTrue Difficulty: x x Moderate Reference: xx x x p. xx9
10. Telecommunications xxis xxthe xxtransmission xxof xxvoice xxand xxvideo xxas xxwell xxas xxdata
xxand xximplies x x transmitting xxa xxlonger xxdistance xxthan xxin xxa xxdata xxcommunication
xxnetwork.
Answer:False Difficulty:xxModerate Reference: xx xx p. xx11
,11. A xxlocal xxarea xxnetwork xx(LAN) xxconnects xxother xxLANs xxand xxBNs xxlocated xxin xxdifferent
xxareas xxto xxeach x x other xxand xxto xxwide xxarea xxnetworks xxin xxa xxspan xxfrom xx3 xxto xx30
xxmiles.
Answer: xxFalse Difficulty:xxModerate Reference: xx xx p. xx13
12. An xxintranet xxis xxa xxLAN xxthat xxuses xxInternet xxtechnologies xxand xxis xxpublicly
xxavailable xxto xxpeople x x outside xxof xxthe xxorganization.
Answer: xxFalse Difficulty:xxModerate Reference: xx x x p. xx15
13. A xxcar xxmanufacturer xxmay xxgive xxaccess xxto xxcertain xxportions xxof xxits xxnetwork xxto xxsome
xxof xxits xxsuppliers x x via xxInternet. xxThis xxis xxan xxexample xxof xxan xxExtranet.
Answer: xxTrue Difficulty:xxModerate Reference: xx x x p. xx15
14. The xxOSI xxmodel xxis xxthe xxmost xxwidely xxused xxnetwork xxmodel xxto xxdevelop xxand xxbuild
xxnetworks xxtoday.
Answer: xxTrue Difficulty:xxModerate Reference: xx xx p. xx16
15. The xxnetwork xxlayer xxis xxresponsible xxfor xxrouting xxmessages xxfrom xxthe xxsource
xxcomputer xxto xxthe x x destination xxcomputer.
Answer: xxTrue Difficulty:xxEasy Reference: xx x x p. xx17
16. In xxthe xxOSI xxmodel, xxthe xxapplication xxlayer xxis xxthe xxend xxuser’s xxaccess xxto xxthe xxnetwork.
Answer: xxTrue Difficulty:xxModerate Reference: xx x x p. xx18
17. The xxapplication xxlayer xxis xxthe xxseventh xxlayer xxof xxthe xxInternet xxmodel xxand xxprovides
xxthe xxend xxuser’s x x access xxto xxthe xxnetwork.
Answer: xxTrue Difficulty:xxModerate Reference: xx x x p. xx18
18. At xxthe xxtransport xxlayer xxin xxthe xxInternet xxmodel, xxTCP xxis xxresponsible xxfor xxbreaking
xxlarge xxfiles x x received xxfrom xxthe xxapplication xxlayer xxinto xxsmaller xxpackets xxand
xxopening xxa xxconnection xxto xxa xxserver x x for xxtransferring xxthe xxpackets.
Answer: xxTrue Difficulty: xxDifficult Reference: xx xx p. xx17
19. Ethernet xxis xxan xxexample xxof xxa xxnetwork xxlayer xxprotocol.
Answer: xxFalse Difficulty:xxEasy Reference: xx x x p. xx17
20. Data xxcommunication xxstandards xxenable xxeach xxlayer xxin xxthe xxsending xxcomputer xxto
xxcommunicate x x with xxits xxcorresponding xxlayer xxin xxthe xxreceiving xxcomputer.
Answer: xxTrue Difficulty: xxEasy Reference: xx xx p. xx22
21. The xxspecification xxstage xxof xxthe xxformal xxstandardization xxprocess xxconsists xxof
xxdeveloping x x nomenclature xxand xxidentifying xxthe xxproblems xxto xxbe xxaddressed.
Answer: xxTrue Difficulty: xxModerate Reference: xx xx p. xx23
22. ANSI xxis xxa xxvoting xxparticipant xxin xxthe xxISO.
Answer: xxTrue Difficulty: xxEasy Reference: xx x x p. xx23
23. Passive xxoptical xxnetworking, xxa xxkey xxtrend xxfor xxthe xxfuture, xxmeans xxthat xxvirtually xxany
xxcomputer xxwill x x be xxable xxto xxcommunicate xxwith xxany xxother xxcomputer xxin xxthe xxworld.
Answer: xxFalse Difficulty: xxModerate Reference: x x p. xx26
, 24. The xxhigh xxbandwidth xxrequirements xx(high xxcommunications xxneeds) xxfor xxvideo xxhave
xxslowed xxits x x integration xxinto xxcomputer xxnetworks.
Answer: xxTrue Difficulty: xxModerate Reference: x x p. xx28
25. An xxApplication xxService xxProvider xx(ASP) xxdevelops xxa xxspecific xxsystem xxand xxcompanies
xxpurchase x x or xxrent xxthe xxservice xxwithout xxinstalling xxthe xxsystem xxon xxtheir xxown
xxcomputers.
Answer: xxTrue Difficulty: xxModerate Reference: x x p. xx29
MULTIPLE CHOICE xx
The x x following x x are x x possible x x multiple-choice x x questions x x for x x tests. x x The
x x question x x is x x posed x x and x x the x x answer x x is x x provided x x under x x the x x choices. x x The
x x level x x of x x difficulty x x (easy, x x moderate, x x difficult) x x and x x the x x page xxnumber(s) xxrelevant
xxto xxthe xxtopic xxis xxalso xxfurnished.
1. Data xxcommunications xxand xxnetworking xxcan xxbe xxconsidered xxas xxa xxglobal xxarea xxof xxstudy
xxbecause:
a. new x x technologies x x and x x applications x x emerge x x from x x a x x variety x x of
x x countries x x and x x spread x x around xxthe xxworld
b. the xxtechnologies xxenable xxglobal xxcommunication
c. the xxpolitical xxand xxregulatory xxissues xxare xxexactly xxthe xxsame xxin xxevery xxcountry
d. a xxand xxb
e. none xxof xxthe xxabove
Answer: xxD Difficulty: xxEasy Reference: xx x x p. xx4
2. In xx1970, xxa xxkey xxdecision xxregarding xxMCI:
a. set xxup xxthe xxTelecommunications xxCompetition xxand xxDeregulation xxAct
b. permitted xxMCI xxto xxprovide xxlimited xxlong xxdistance xxservice xxin xxthe xxU.S.
c. permitted x x telephone x x and/or x x computer x x equipment x x that x x was x x not
x x manufactured x x by x x Bell x x Telephone xxto xxbe xxconnected xxto xxAT&T’s xxnetwork
d. divided xxAT&T x x into x x two x x parts: x x one x x part x x for x x long x x distance x x service,
x x and x x a x x second x x part, x x comprised xxof xxseven xxoperating xxcompanies, xxfor xxlocal
xxtelephone xxservice
e. set xxup xxderegulation xxfor xxinternational xxtelecommunications xxmarkets xxin xx68
xxcountries
Answer: xxB Difficulty: xxEasy Reference: xx xx xxp. xx6
3. In xx1984, xxa xxfederal xxjudge xxbroke xxup xxa xxhighly xxcontested xxtelephone xxservice xxmonopoly
xxand:
a. set xxup xxthe xxTelecommunications xxCompetition xxand xxDeregulation xxAct
b. permitted xxMCI xxto xxprovide xxlimited xxlong xxdistance xxservice xxin xxthe xxU.S.
c. permitted x x telephone x x and/or x x computer x x equipment x x that x x was x x not
x x manufactured x x by x x Bell xxTelephone xxto xxbe xxconnected xxto xxAT&T’s
xxnetwork
d. divided xx AT&T x x into x x two x x parts: x x one x x part x x for x x long x x distance
x x service, x x and xxa x x second x x part, xx comprised xx of xx seven xx regional
xx operating xxcompanies, xx for xx local xxtelephone x x service
e. set xxup xxderegulation xxfor xxinternational xxtelecommunications xxmarkets xxin xx68
xxcountries