Adu Digital Comm

IECEP-Manila IECEP-Ma nila Form 1 S.2011

TEST QUESTIONS

PROFILE OF CONTRIBUTOR Name of Scool !"am#on Uni$er#i%& Uni$er#i%& !""re## '00 San Marcelino S%. Ermi%a(Manila Si)na%*re o$er Prin%e" E$el&n Q. Ra)*in"in Name ( Po#i%ion Cair+er#on-ECE ,e+ar%men% !rea of S+ecialia%ion

Elec%ronic#Comm*nica%ion# Elec%ronic#Comm*nica%io n#

Plea#e in"ica%e %e #*/ec%  3 4eneral En)ineerin) an" !++lie" Science 5 3 Elec%ronic# S&#%em S&#%em 6 Te Tecnolo)ie#- ,i)i%al Comm*nica%ion Comm*nica%ion QUESTION Te minim*m #am+lin) ra%e accor"in) %o N&7*i#% Teorem Coice# a. e7*al e7*al %o %e lo8e#% lo8e#% fre7*en fre7*enc& c& of of a #i)nal #i)nal /. e7*al e7*al %o %e i)e#% i)e#% fre7*e fre7*enc& nc& of a #i)nal #i)nal c. %8ice %8ice %e /an"8 /an"8i"% i"%  of a #i)n #i)nal al ". %8ice %8ice %e %e i)e# i)e#%% fre7*en fre7*enc& c& of a #i)nal #i)nal !NS9ER " %8ice %e i)e#% fre7*enc& of a #i)nal SOLUTION  IF PROBLEM -SOL:IN43 N!

Reference ,a%a Comm*nica%ion# an" Ne%8or;in) /& Foro*an <% e"i%ion Ca+%er = En"or#e" /& E$el&n Q. Ra)*in"in Scool Re+re#en%a%i$e

IECEP Manila

IECEP-Manila Form 1 S.2011

TEST QUESTIONS

PROFILE OF CONTRIBUTOR Name of Scool !"am#on Uni$er#i%& !""re## '00 San Marcelino S%. Ermi%a(Manila Si)na%*re o$er Prin%e" E$el&n Q. Ra)*in"in Name ( Po#i%ion Cair+er#on-ECE ,e+ar%men% !rea of S+ecialia%ion Elec%ronic#Comm*nica%ion# Plea#e in"ica%e %e #*/ec%  3 4eneral En)ineerin) an" !++lie" Science 5 3 Elec%ronic# S&#%em 6 Tecnolo)ie#- ,i)i%al Comm*nica%ion QUESTION I% i# *#e" in 8irele## a++lica%ion# in 8ic #%a%ion# m*#% /e a/le %o #are %e me"i*m 8i%o*% in%erce+%ion /& an ea$e#"ro++er an" 8i%o*% /ein) #*/ec% %o ammin) from a malicio*# in%r*"er

Coice# a. mo"*la%ion c. m*l%i+le acce## !NS9ER

/. M*l%i+le acce## ". S+rea" #+ec%r*m

". #+rea" #+ec%r*m SOLUTION  IF PROBLEM -SOL:IN43 N!

Reference ,a%a Comm*nica%ion# an" Ne%8or;in) /& Foro*an <% e"i%ion Ca+%er =

En"or#e" /& E$el&n Q. Ra)*in"in Scool Re+re#en%a%i$e

IECEP Manila


TEST QUESTIONS

PROFILE OF CONTRIBUTOR Name of Scool !"am#on Uni$er#i%& !""re## '00 San Marcelino S%. Ermi%a(Manila Si)na%*re o$er Prin%e" E$el&n Q. Ra)*in"in Name ( Po#i%ion Cair+er#on-ECE ,e+ar%men% !rea of S+ecialia%ion Elec%ronic#Comm*nica%ion# Plea#e in"ica%e %e #*/ec%  3 4eneral En)ineerin) an" !++lie" Science 5 3 Elec%ronic# S&#%em 6 Tecnolo)ie#- ,i)i%al Comm*nica%ion QUESTION !n error "e%ec%ion me%o" 8ic *#e# one># com+lemen% ari%me%ic Coice# Cec;#*m /. CRC c. Sim+le-+ari%& cec; ". T8o-"imen#ional +ari%& cec; a.

!NS9ER a. Cec;#*m SOLUTION  IF PROBLEM -SOL:IN43


En"or#e" /& E$el&n Q. Ra)*in"in Scool Re+re#en%a%i$e

IECEP Manila


TEST QUESTIONS

PROFILE OF CONTRIBUTOR Name of Scool !"am#on Uni$er#i%& !""re## '00 San Marcelino S%. Ermi%a(Manila Si)na%*re o$er Prin%e" E$el&n Q. Ra)*in"in Name ( Po#i%ion Cair+er#on-ECE ,e+ar%men% !rea of S+ecialia%ion

Elec%ronic#Comm*nica%ion#

Plea#e in"ica%e %e #*/ec%  3 4eneral En)ineerin) an" !++lie" Science 5 3 Elec%ronic# S&#%em 6 Tecnolo)ie#- ,i)i%al Comm*nica%ion QUESTION I% i# a connec%in) "e$ice /e%8een %8o in%erne%8or;# %a% *#e "ifferen% mo"el# C?OICES

a. /. c. ".

Bri")e 4a%e8a& Re+ea%er ro*%er

!NS9ER /. )a%e8a& REFERENCE

Elec%ronic Comm*nica%ion# S&#%em /& Miller Ca+%er ' +.=@@ En"or#e" /& E:ELAN Q.R!4UIN,IN Scool Re+re#en%a%i$e

IECEP Manila


TEST QUESTIONS



Plea#e in"ica%e %e #*/ec%  3 4eneral En)ineerin) an" !++lie" Science 5 3 Elec%ronic# S&#%em 6 Tecnolo)ie#- ,i)i%al Comm*nica%ion QUESTION I% i# an *n"e#ire" #if% or 8i"% can)e in "i)i%al /i%# of "a%a "*e %o circ*i%r& ac%ion 8ic ca*#e# /i%# %o arri$e a% "ifferen% %ime# Coice# a. alia# c. i%%er

/. im+*l#e ". +ari%&

!NS9ER i%%er SOLUTION  IF PROBLEM -SOL:IN43 c.

N!

REFERENCE Elec%ronic Comm*nica%ion# S&#%em /& Miller Ca+%er ' +.=@@ En"or#e" /& E:ELAN Q. R!4UIN,IN Scool Re+re#en%a%i$e

IECEP Manila


TEST QUESTIONS

PROFILE OF CONTRIBUTOR Name of Scool !"am#on Uni$er#i%& !""re## '00 San Marcelino S%. Ermi%a(Manila Si)na%*re o$er Prin%e" E$el&n Q. Ra)*in"in Name ( Po#i%ion Cair+er#on-ECE ,e+ar%men% !rea of S+ecialia%ion Elec%ronic#Comm*nica%ion# Plea#e in"ica%e %e #*/ec%  3 4eneral En)ineerin) an" !++lie" Science 5 3 Elec%ronic# S&#%em 6 Tecnolo)ie#- ,i)i%al Comm*nica%ion QUESTION In PCM #&#%em( i% i# %e ra%io of %e ma5im*m in+*% $ol%a)e le$el %o %e #malle#% $ol%a)e le$el %a% can /e 7*an%ie" C?OICES a. ,&namic ran)e /. Fi)*re of meri% c. Q*ali%& fac%or ". Noi#e fi)*re !NS9ER a. ,&namic ran)e SOLUTION  IF PROBLEM -SOL:IN43


En"or#e" /& E:ELAN Q. R!4UIN,IN Scool Re+re#en%a%i$e

IECEP Manila


TEST QUESTIONS

PROFILE OF CONTRIBUTOR Name of Scool !"am#on Uni$er#i%& !""re## '00 San Marcelino S%. Ermi%a(Manila Si)na%*re o$er Prin%e" E$el&n Q. Ra)*in"in Name ( Po#i%ion Cair+er#on-ECE ,e+ar%men% !rea of S+ecialia%ion Elec%ronic#Comm*nica%ion# Plea#e in"ica%e %e #*/ec%  3 4eneral En)ineerin) an" !++lie" Science 5 3 Elec%ronic# S&#%em 6 Tecnolo)ie#- ,i)i%al Comm*nica%ion QUESTION ! m*l%i+le5er com/ine# fo*r 100-;/+# cannel# *#in) a %ime #lo% of 2 /i%#( "e%ermine %e frame "*ra%ion. Coice# a. /. c. ".

20µ# 0µ# 100µ# <00µ#

!NS9ER

a. 20µ#

SOLUTION  IF PROBLEM -SOL:IN43 The link carries 50,000 frames /sec The frame duration = 1/50,000 = 20µ#

Reference ,a%a Comm*nica%ion# an" Ne%8or;in) /& Foro*an <% e"i%ion Ca+%er < En"or#e" /& E:ELAN Q. R!4UIN,IN Scool Re+re#en%a%i$e

IECEP Manila


TEST QUESTIONS

PROFILE OF CONTRIBUTOR Name of Scool !"am#on Uni$er#i%& !""re## '00 San Marcelino S%. Ermi%a(Manila Si)na%*re o$er Prin%e" E$el&n Q. Ra)*in"in Name ( Po#i%ion Cair+er#on-ECE ,e+ar%men% !rea of S+ecialia%ion Elec%ronic#Comm*nica%ion# Plea#e in"ica%e %e #*/ec%  3 4eneral En)ineerin) an" !++lie" Science 5 3 Elec%ronic# S&#%em 6 Tecnolo)ie#- ,i)i%al Comm*nica%ion QUESTION ,e%ermine %e ?ammin) "i#%ance for %e co"e8or"#  10101( 110013 Coice# a. /. c. ".

one %8o %ree fi$e

!NS9ER /. %8o SOLUTION  IF PROBLEM -SOL:IN43 10101 XOR 11001  01100  +re#ence of %8o 13



IECEP Manila


TEST QUESTIONS



Plea#e in"ica%e %e #*/ec%  3 4eneral En)ineerin) an" !++lie" Science 5 3 Elec%ronic# S&#%em 6 Tecnolo)ie#- ,i)i%al Comm*nica%ion QUESTION !n a""re## #+ace i# %e %o%al n*m/er of a""re##e# *#e" /& %e +ro%ocol( #*c a# IP$< an" IP$D. 9a% i# %e a""re## #+ace of IP$D Coice# a. /. c. ".

2=2 2D< 2'D 212

!NS9ER ". 212

SOLUTION  IF PROBLEM -SOL:IN43 N!

Reference ,a%a Comm*nica%ion# an" Ne%8or;in) /& Foro*an <% e"i%ion Ca+%er 1'


IECEP Manila


TEST QUESTIONS



Plea#e in"ica%e %e #*/ec%  3 4eneral En)ineerin) an" !++lie" Science 5 3 Elec%ronic# S&#%em 6 Tecnolo)ie#- ,a%a Comm*nica%ion QUESTION I% i# a #%an"ar" "e#i)ne" /& ITU %o allo8 %ele+one# in %e +*/lic %ele+one ne%8or; %o %al; %o com+*%er#%erminal# connec%e" %o %e in%erne% Coice# a. /. c. ".

?. 111 ?.12= ?.=21 ?. =2=

!NS9ER ?.=2= SOLUTION  IF PROBLEM -SOL:IN43 d.

N!

Reference ,a%a Comm*nica%ion# an" Ne%8or;in) /& Foro*an <% e"i%ion Ca+%er 20


IECEP Manila


TEST QUESTIONS



Plea#e in"ica%e %e #*/ec%  3 4eneral En)ineerin) an" !++lie" Science 5 3 Elec%ronic# S&#%em 6 Tecnolo)ie#- ,i)i%al Comm*nica%ion QUESTION ! com+*%er moni%or a# a re#ol*%ion of 1200 /& 1000 +i5el#. If eac +i5el *#e# 102< color#( o8 man& /i%# are nee"e" %o #en" %e com+le%e con%en%# of a #creen Coice# a. /. c. ".

12 4i)a/i%# 1. 2 4i)a/i%# 120 Me)a/i%# 12 Me)a/i%#

!NS9ER d. 12 Me)a/i%# SOLUTION  IF PROBLEM -SOL:IN43 1(200 %ime# 1000 +i5el# 5 10 /i%#  12 M/ 102< color# re7*ire# 10 /i%# ( 210  102<

Reference ,a%a Comm*nica%ion# an" Ne%8or;in) /& Foro*an <% e"i%ion Ca+%er = +. ''


IECEP Manila

Adu Digital Comm

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