ust-est data communications

8/9/2019 UST-EST Data Communications

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IECEP Manila IECEP-Manila Form 1 S.2011 TEST QUESTIONS

1. Please Use One Page per Question.2. Fill-out all neee in!ormation.

". Su#missions $it% in&omplete ata $ill not #e &onsiere.

P'OFI(E OF CONT'I)UTO'

Name o! S&%oolUNI*E'SIT+ OF S,NTO TOM,S

,ress ESP,N, ST. M,NI(,

Signature oer PrinteName Position

,'M,N/O *. ),''ETTOComputer (a# Superisor /eans Coun&il

,rea o! Spe&ialiation Ele&troni&s Communi&ations

Please ini&ate t%e su#3e&t45 6 7eneral Engineering an ,pplie S&ien&e58 6 Ele&troni&s S9stem : Te&%nologies

QUESTION4 Is an OSI (a9er $%i&% is responsi#le !or proiing error-!ree&ommuni&ations a&ross t%e p%9si&al lin; &onne&ting primar9 an se&onar9stations 5noes6

C%oi&es4

a./ata (in; (a9er #. Transport (a9er &. Session (a9er . Presentation (a9er

,NS


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IECEP-Manila Form 1 S.2011 TEST QUESTIONS

1. Please Use One Page per Question.2. Fill-out all neee in!ormation.". Su#missions $it% in&omplete ata $ill not #e &onsiere.








QUESTION4 Is t%e ratio o! t%e largest possi#le magnitue to t%e smallest possi#lemagnitue t%at &an #e e&oe #9 t%e igital-to-analog &onerter.

C%oi&es4

a. Step sie #. Quantiation Error &. 'esolution . /9nami& range ,NS


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QUESTION4 Is a PCM s9stem $%i&% uses a single #it PCM &oe to a&%iee igitaltransmission o! analog signals.

C%oi&es4

a.Trellis Coing #. /elta moulation &. /i!!erential PCM . Q,M

,NS


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QUESTION4 Is a reunan&9 error ete&tion s&%eme t%at uses parit9 toetermine i! a transmission error %as o&&urre $it%in a message an issometimes &alle message parit9.

C%oi&es4

a. (ongituinal reunan&9 &%e&; #. *erti&al reunan&9 &%e&;&. C%ara&ter Parit9 C%e&; . C%e&;sum

,NS


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QUESTION4 Is an n-#it ata register insie t%e U,'T t%at ;eeps tra&; o! t%eU,'Ts transmit an re&eie #u!!er registers.

C%oi&es4

a. Control 'egister #. Status

Endorsed by:

School Representative IECEP Manila


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QUESTION4 Is an a&&ess met%o use primaril9 $it% (,Ns &on!igure in a #ustopolog9.

C%oi&es4

a. CSM,AC/ #. CSM, &. CSM,AC, . M,

,NS


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QUESTION4 IP ersion > aress lengt% is

C%oi&es4

a. "2 #its #. 2> #its &. >0 #its . >B #its

,NS


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QUESTION4 Is a multiport #rige t%at proies #riging !un&tion.

C%oi&es4

a. 'epeater #. %u# &. 'outer . S$it&%

,NS


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QUESTION4 Is a ei&e $%i&% operates in t%e Net$or; la9er an it ma;es!or$aring e&isions on t%e #asis o! net$or; aresses.

C%oi&es4

a. 'epeater #. %u# &. 'outer . S$it&%

,NS


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QUESTION4 OC-1 5STS-16 line rate is

C%oi&es4

a. =1.B> M#ps #. 1.=>> M#ps &. " M#ps . 2.0>B M#ps

,NS


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QUESTION4 Is one in $%i&% all &omputers s%are t%eir resour&es $it% all t%e ot%er&omputers on t%e net$or;.

C%oi&es4

a. /ei&ate &lient serer net$or; #. Peer-to-peer &lientAserer net$or;&. Peer-to-peer net$or; . ,ll o! t%e a#oe

,NS


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QUESTION4 Is use to inter!a&e /TEs to igital transmission &%annels

C%oi&es4

a. /ata moem #. 'outer &. Splitter . C%annel seri&e unit

,NS


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QUESTION4 Moulation $%i&% &om#ines en&oing an moulation to reu&e t%epro#a#ilit9 o! error.

C%oi&es4

a. /PSD #. FSD &. Q,M . TCM

,NS


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QUESTION4 Is an error-&orre&ting &oe use !or &orre&ting transmission errors ins9n&%ronous ata streams.

C%oi&es4

a. Trellis Coe #. E)C/IC &. )is9n& Coe . amming &oe

,NS

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