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8/18/2019 Theory-ICT Revision Questions
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Theory – last hour revision
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Q1:- Give advantages & disadvantages of using computerrather than (nurses, students, etc).
Q2:- Give advantages & disadvantages of having laptop
computer rather than a desktop computer.
Q3:- Give advantages & disadvantages of using robotrather than humans.
Q4:- Give advantages & disadvantages of using DTPrather than website.
Q5:- Give advantages & disadvantages of using G!.
Q6:- Give advantages & disadvantages of using "#!.
Q7:- Give the di$erences between %' and %'.
Q8:- Give advantages & disadvantages of usingngerprint.
Q9:- Give the usage, advantages & disadvantages of thefollowing*+
a)'agnetic tripe %eader. b) "hip & Pinreaders.
c) #ight pen.
d)'%. e) "%. f)'!"%.
Q10:- Describe how a microprocessor+controlled such a
s-stem.
Q11:- ame three sensors and its uses in the following*+
i. /ashing machine.ii. Greenhouse.iii. Growing condition.
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iv. /hether station.v. uch a s-stem.
Q12:- /hat is meant b- 01TP and how such a s-stem
work2Q13:- /h- computer can3t read data directl- from sensor,and what device is needed to allow computer to readthese data2
Q14:- Describe the facts of the microprocessor+controlledon lifest-le2
Q15:- Describe the inputs, outputs, hardware andprocessing involved in such a burglar alarm s-stem2
Q16:- /hat is meant b- video+conferencing, and giveadvantages & disadvantages of using it, and hardwareneeded for using it2
Q17:- Di$erences between hard disc and the following*+
a)1lopp- disc
b)"D %'
Q18:- 04plain wh- the P"s is used with the following*+
a)Pen drivesb)5lu+ra-c) 1i4ed hard disc drived)'agnetic tapee)"D %
f) D6D %'
Q19:- Give the denition, and di$erences of thefollowing*+
a)/
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b)/#c) #
Q20:- Give the advantages & disadvantages of /#.
Q21:- Give the advantages & disadvantages of usinginternet.
Q22:- Give the di$erences between !ntranet & !nternet.
Q23:- 04plain wh- connecting computers to network ma-need*+
• 'odem
• browser.• n !P.
• 5ridge.
• witch.
• 7ub.
Q24:- /hat should managers do to make their datasecure2
Q25:- Describe the role of a pro4- server2Q26:- Describe the role of router2
Q27:- /hat are the features of the following*+
i. Database.ii. preadsheet.
Q28:- Give the advantages of creating database ratherthan manual s-stem.
Q29:- Give the avigation aids that would be part of well+designed on screen+input form.
Q30:- /hat is meant b- simulation2
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Q31:- Give the advantages of sending message b- e+mailrather than b- post8hand.
Q32:- Give the advantages & disadvantages of using
online shopping.
Q33:- Give the advantages & disadvantages of usingmobile phone in accessing internet rather than P"
Q34:- /hat is meant b- virus, and how the- can beprevented2
Q35:- /hat are the purposes of Decr-ption & 0ncr-ption2
Q36:- /hat is meant software cop-right, and how toprevent it from being broken, and how to break it2
Q37:- /hat is meant b- 5log & /iki2
Q38:- Give the t-pes of securit- needed to preventhacking.
Q39:- tate health & safet- problems, and the wa- to
prevent them.
Q40:- tate the wa-s in which computers containingpersonal data can be misused, and how to prevent them.
Q41:- Give the steps order of "hip and P! s-stem.
Q42:- Give reasons wh- some situations should bemodeled.
Q43:- Give e4amples of computer situations.
Q44:- /hat is meant b- e4pert s-stem and what the-might be used2
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Q45:- Describe how an e4pert s-stem can be created &evaluated2
Q46:- Describe the batch processing of bank che9ues2
Q47:- Describe how an e4pert s-stem diagnoses thefaults2
Q48:- Give the components of a t-pical e4pert s-stem2
Q49:- Give the methods of collecting information about a system.
Q50:- Explain the implementation types, and give advantages &disadvantages of each one of them?
Q51:- State what is meant by data validation & verification, and whatis difference between them?
Q52:- State the types of evaluation, and its strategies with its reason.
Q53:- State the items of each document.
Q54:- What is meant by!
a" #ormal range b" $bnormal range
c" Extreme range
Q55:- /hat is meant b- backup, and wh- it is necessar-,
and wh- backing storage is needed, while computer
s-stems have %'2
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Ans1:- Advantages:-
+ "omputer doesn3t take breaks.+ "omputers can work in an- condition (even if
dangerous).+ "omputers can take more than one result in a
moment.+ "omputer takes data more accuratel-.+ "omputers don3t need to be paid.
Disadvantages:-
+ etting up is ver- e4pensive.+ Data can be lost (if not saved well).+ 'aintenance cost can be e4pensive.+ 7ackers ma- displa-8amend8delete the data.+ nemplo-ment.
Ans2:- Advantages:-
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+ #aptop can be easil- transported.
+ #aptop needs less space.
+ #aptop can access it an-where.
Disadvantages:-
+ #aptop can be easil- stolen.
+ #aptop can be easil- damage.
+ #aptop needs charge from time to time.
+ #aptop screen is not clear as the screen of desktop.
Ans3:- Advantages:-
+ %obots can work :; hours a da- ever- da-.
+ %obots don3t need to be paid a wage.
+ %obots can work in an- condition (even if it dangerous).
+ %obots perform tasks more 9uickl-.
Disadvantages:-
+ nemplo-ment.
+ etting up is ver- e4pensive.
+ /orkers become deskilled.+ 'aintenance cost can be e4pensive.
Ans4:- Advantages:-
- n- member of local famil- can see it without worr-ing.
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+ o need of internet to access it.
+ "an read it an-where.
Disadvantages:-
+ o sound in it.
+ o animations in it.
+ ot as eas- to update.
Ans5:- Advantages:-
+ "an use mouse (no need of t-ping in commands).
+ 0asier to change8edit.
+ 0asier to open programs.
Disadvantages:- -5loated software can waste memor-.
+ cripting a G! interaction is not easil-.
+ %e9uires a higher threshold for the interface.
Ans6:- Advantages:-
+ %e9uires a lower threshold for the interface.
+ cripting it is easil-.
+ o bloated software needed.
Disadvantages:-
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+ T-ping in commands is di
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+ 0as- to use.
Disadvantages:- + 6er- limited storage capacit-.
+ $ected b- magnet.+ ot ver- secure.
+ Disable people nd it hard
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Chip & Pin readers:- Pa-ment, identication cards.
Advantages:- 04tra la-er of securit-.
+ llow immediate updating.+ ot a$ected b- magnet.
+ Disable people nd it eas-.
Disadvantages:-+ 04pensive to produce.
+ "ard holder needs to ver- careful to protect their P!.
+ !f the customer forgets the P!, transactions will be
cancelled.
Light pen:- llow the user to point to displa-ed
ob=ects, or to draw on screen.
Advantages:- - 'ake -ou able to interact with screen.
+ 5etter suited to artistic.
+ #ight pen s-stems is ver- e
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Paper 1 - Theory ICT Last Hour Revision
O R:- To input data from pencil8pen.
Advantages:- >uick entr- method.
+ 0as- for user to ll in the form.
+ 'ore accurate.
Disadvantages*+ !f marks didn3t ll completel-, it ma-not be read correctl-.
+ nl- suitable for recording one out of selection of
answers.
OCR:-
"onvert scanned image to understandable te4t.
Advantages:- 1aster method of entr-.
+ Disable people nd it eas-.
Disadvantages:- lot of errors are produced.
+ "annot read hand writing
+ %e9uires ver- high 9ualit- scanned image.
ICR:-ses magnetic ink to print routing and account
numbers.
Advantages:- 0ase of readabilit-.
+ 7igh securit-.
+ 1ast wa- to read bank data.
Disadvantages:- 04pensive.
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Paper 1 - Theory ICT Last Hour Revision
+ There is a limit to the character set that can be used.
Ans10:-+ 'icroprocessor stores re9uired
temperature8water level as preset value.
+ Data is converted from analogue to digital8D" is used.
+ "ompares temperature8water level with pre+set value.
+ !f temperature is lower than preset value microprocessor
sends a signal to turn heater on.
+ !f higher than preset value microprocessor sends a
signal to turn heater o$.
+ !f values are e9ual microprocessor does nothing.
Ans11:-
Sensors Washi
ng
machi
ne.
Greenh
ouse
Growin
g
conditi
on
Whet
her
statio
n.Temperat
ure
? ? ? ?
pH ? ? ? @Pressure ? @ @ ?Light @ ? ? ?
Ans12:- + + 0lectronic 1unds Transfer at Point of ale.
+ 0nables pa-ment for goods at a checkout using credit.
+ Goods are purchased and bill is calculated.
+ "ustomer inserts card into chip reader.
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Paper 1 - Theory ICT Last Hour Revision
+ P! is entered.
+ P! is compared with that stored on the chip.
Ans13:- ensors produce analogue signals, while
computer read onl- digital signals, so analogue to digital
converter is needed.
Ans14:- - People become laAier.
+ "an go out more. 8 + 'ore free time.
Ans15:- Inputs:- ound, Temperature and light sensors.Outputs:- larm light Bashes. 8 larm sounds
Processing:- 'icroprocessor continuall- monitorssensors.
!f light sensor detects light beam interrupted.
!t temperature sensed b- processor is greater than preset
value.
!f sound sensed b- processor is greater than preset value.'icroprocessor sends signal to output device.
Ans16:- 6ideo conference is a live connection between
people in separate locations, in purpose of
communications.
Hardware:- /ebcam C 'icrophone C peakers.
Advantages:- + o need of pa-ing for conferenceroom.
+ o need of pa-ing for emplo-ee travelling e4penses.
+ "onference can be called at short notice.
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Paper 1 - Theory ICT Last Hour Revision
Disadvantages:- - #ack of personal touch.+ 6isual and sound ma- be not clear.
+ Di
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Paper 1 - Theory ICT Last Hour Revision
!i"ed hard dis#:- + tores 8 + tores software.
Magnetic ta$e:- + 'ake backups. 8 + 5atch Processing.
%D RW:- + %ewritable disc. 8 + %ecording televisionprograms.
D&D'%D ROM:- Displa- movies
Ans19:-
WAN:-!s a computer network that covers a broad area.
LAN:- !s a computer network that covers a small area.
"ifferences
WAN LAN WLANWide Area (etwork. )ocal Area
(etwork.
Wireless )ocal
Area (etwork.#ow transfer rate. 7igh transfer rate. se wireless to
transfer data."an3t connect /
to /.
"an connect # to
#.
Greater securit-. #ess securit-.
Ans20:- Advantages:-
- 0asier to add8move workstations.
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Paper 1 - Theory ICT Last Hour Revision
+ 0asier to provide connectivit- in di
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Paper 1 - Theory ICT Last Hour Revision
!s /. !s #."an access it an-where. Password controlled pages.!s global. !s within one organisation.
Ans23:-
A Modem:- To convert analogue signals to digitalsignals.
A browser:- To access the (world wide) web.
An ISP:- To access the internet.
A ridge:- "onnects networks.
A Switc!:- Directs data packets to specic computers.
A Hub:- 5roadcasts data packets to computers in a #.
Ans24:-
"irewa##:- Prevents unauthorised computers havingaccess to the network.
Antivirus:-%emoves viruses from storage media.
$ncr%ption:- Data becomes unreadable tounauthorised users.
Ans25:-
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Paper 1 - Theory ICT Last Hour Revision
+ ct as a web server.
+ ct as bu$er.
+ "an store the web pages.
+ "an block certain sites.
Ans26:-
+ "onnect # to /.
+ "onnect # to internet.
+ %educe collisions.
+ Passes data to switch.Ans27:- Database:-
+ 0asier to edit data.+ #ess storage capacit- is used.+ >uicker to enter new data.
Spreads!eet:-
+ Performs what ifs.+ %eplicate formulas.+ "an make graphs or charts.
Ans28:- + >uicker to enter8update8edit data.
+ 1ew errors are likel-
+ #ess duplication of data
Ans29:- + 5ackward
+ 1orward
+ ew record button
+ 04it button
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Paper 1 - Theory ICT Last Hour Revision
Ans30:- imulation modeling is the process of creating
and anal-Aing a digital protot-pe of a ph-sical model to
predict its performance in the real world
Ans31:- + 'essage can be send an-time.+ 'essage will be delivered faster.
+ ou don3t have to leave -our house to send email.
+ 'essage can be read from an- location.
+ ou can send attachments.
Ans32:- Advantages:-
+ Don3t have to leave the house.
+ aves travelling time.
+ aves travelling e4penses.
+ "an shop when shops are closed.
Disadvantages:-+ eed a credit card.
+ eed internet and computer.
+ #ess of personal touch.
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+ "an3t see the goods in realit-.
Ans33:- Advantages:-
+ 'obile is more portable than laptop.
+ "an access internet from greater number of places.
+ 0asier to use while on the move.
Disadvantages:-
+ Displa- screen is smaller.
+ Ee-board is smaller.
+ ome sites do not have full facilities for mobile phone.
Ans34:-
+ program that has been created with the purpose of
damaging a computer s-stem.
+ Prevent entering suspicious websites.
+ !nstall good anti+virus software.
+ top downloading software.
+ !nstall anti+malware software.
Ans35:-
$ncr%ption:- Prevents hackers from understandingdata.
+ crambling the data.
+ !t doesn3t destro- viruses.
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Decr%ption:- The purposes of decoding data.
+ %e9uires a secret ke- or password.
Ans36:-Preventation:-
+ hould not be copied.
+ hould not be used on network.
+ hould not be renting without owner3s permission.
ro&en b%:-
+ Giving software copies to others without the owner3spermission.
+ 'aking a cop- of a disk without the owner3s permission.
+ elling copies of the software without the owner3s
permission.
Ans37:-
#og:- Personal 1orum.
+ suall- one author.
+ "an be an electronic diar-.
+ thers can comment.
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+ nl- author can edit entries.
Wi&i:-General forum.
+ suall- 'an- authors.+ suall- ob=ective.
+ !nternal and e4ternal links.
+ "ontributors can edit entries.
Ans38:-
Pro'% server:- 5lock suspicious websites.
"irewa##:- Provide a shield between a computer and theinternet.
Data $ncr%ption:- Prevent hackers from
understanding data.Parenta# guidance settings:- "an block
undesirable topics.
Ans39:-
Sa(et% Precautio
n
Hea#t!
%
Precaution
0lectrocution. "able
insulation.
7eadac
hes.
Take regular
breaks. Trailing
cables.
"reate
ducts.
%!. 1inger
e4ercises.1ire. 04tinguisher. 0-estrai Get anti+glare
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Paper 1 - Theory ICT Last Hour Revision
n. screen.09uipment
falling.
#arge tables. 5ackach
es.
traight back
chair.
Ans40:-
+ 7ackers ma- read the data and pass it on.
+ 7ackers ma- delete the data.
+ 7ackers ma- amend the data.
Preventation:-
+ Data should be encr-pted.
+ se username and password.
+ Do not connect the computers to a network.
+ Ph-sical securit- (locks on computer room doors).
Ans41:-
+ -stem used to read bank8credit cards.
+ t T' or 01TP s-stems.
+ P! is t-ped in using P! PD.
+ Details on chip are read b- chip reader.
+ !f P! correct the customer will be able to enter the
account.
+ !f not correct, the s-stem will ask the customer to re+
enter the P!.
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Ans42:-
+ ome situations is too dangerous to build.
+ ome situations is too e4pensive to build.
+ ome situations is time consuming to build.
+ ome situations its time scales are too vast.
Ans43:-
FD modelling. 8 1light simulation. 8 Driving simulation.
Ans44:-
+ 04pert s-stems are special databases which are
designed to cop- the e4pertise and knowledge of a
human e4pert in man- sub=ects.
- +sed in:- "ar fault diagnosis. 8 Ta4. 8 "hess games.
Ans45:-
+ !nterview the e4perts, and collect knowledge.
+ Enowledge base is created, organiAed and stored.
+ !nference engine is created, organiAed and stored.
+ %ule base is created, to allow users to communicate
with the e4pert s-stem.
+ Testing b- 9uestions in form of (check bo4es).
Ans46:-
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Paper 1 - Theory ICT Last Hour Revision
+ "he9ues are collected together, during the course of the
da-.
+ "he9ues are then processed all at once.
+ "he9ues are processed overnight.
+ 5ank accounts updated following morning.
Ans47:-
+ Data is read b- sensors.
+ ses interactive interface.
+ 04pert s-stem compares s-mptoms, with those in theknowledge base, using rules base, then matches are
found.
Ans48:-
+ -mptoms are entered using the user interface
+ ser interface displa-s 9uestions.+ 04pert s-stem compares s-mptoms, with those in the
knowledge base, using rules base, and then matches
are found.
Ans49:- !nterviews C >uestionnaires C bservations C04amining documents.
Ans50:-
Direct imp#ementation:- 'eans that the old s-stem
is stopped, and the new s-stem is started.
Advantages:- ave time. 8 ave costs.
Disadvantages:- ta$ ma- nd it di
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Paper 1 - Theory ICT Last Hour Revision
+ !f the s-stem is down there is no other s-stem to act as
backup
P!ased imp#ementation:- 'eans that the new
s-stem is introduced step b- step (in phases)
Advantages:- !f the s-stem is down there other will actas a backup
+ 0as- to train sta$.
Disadvantages:- problem is that it might take toomuch time to introduce the new s-stem.
+ 04penses of running : s-stems.
Pi#ot imp#ementation:- 'eans that the new s-stemreplaces the old s-stem in one operation, but onl- on a
small scale.
Advantages:- aves cost. 8 0as- to train sta$.
Disadvantages:- !t will take too much time to get apilot to completel- replace of the old s-stem.
Para##e# imp#ementation:- 'eans that the news-stem is started, but the old s-stem is kept in running
(in parallel)
Advantages:- 0as- to train sta$.
+ !f the s-stem is down there other will act as a backup.
Disadvantages:- 04penses of running : s-stems.
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Paper 1 - Theory ICT Last Hour Revision
+ problem is that all tasks should be done twice.
Ans51:-
Data )a#idation:- !t checks if the data from thecorrect t-pe or not.
*ange+ presence+ digit+ data t%pe+ #engt!+ and
(ormat checks,
Data verication:- !t makes sure that data isaccurate.
+ Proof reading, double+entr-.
"ifferences
Data Validation Data Verification"hecking if the data is
reasonable or acceptable.
"hecking if data has been
accuratel- copied or not.!t will pick up errors if
verication does not
!t will pick up errors if
validation does not
!t alwa-s carried out b-computer
!t alwa-s carried out b- user
Ans52:-
+ 0ase of use
+ The appropriateness of the solution.
Strateg !eason
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Paper 1 - Theory ICT Last Hour Revision
"omparing the solution with
the original task
re9uirements.
To ensure that re9uirements
have been met.
"ollect data from the users
of the new s-stem.
To see how well the new
s-stem works.nal-se the user3s
responses to the testing
results
o that users needs are
takes into account
Ans53:- .ser Documentation
+ 7ow to load8run software.
+ 7ow to save a le.
+ 7ow to Print.
+ 7ow to add8edit8delete records.
/ec!nica# documentation
+ Program listening.
+ 1ile structure.
+ Print formats
+ Purpose of the s-stem.
+ creen la-outs.
Ans54:-
Norma# range:- Data within the given range.
Abnorma# range:- Data outside the given range,
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$'treme range:- Data on the boundaries of therange.
Ans55:- 5ackup is the activit- of cop-ing les or
databases, in case the le is accidentall- deleted,
corrupted, changed, deleted, hacked, or got a virus. !t is
necessar- even if %' is present because, if power is lost
%' will lost, while backing up the les will not be lost
even if power is lost.
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