(95334975) cs101_5finaltermpapersof2010

7/27/2019 (95334975) Cs101_5FinaltermPapersof2010

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Question No: 2 ( Marks: 1 ) - Please

choose one % of the users have left

websites in frustration due to poornavigation.

40

62

83

9


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1

Question No: 3 ( Marks: 1 ) - Please choose one breaks down the message to be sent over the

internet intopackets.

FTP

HTTP

TCP

IP

Question No: 4 ( Marks: 1 ) - Please choose oneThe first spread sheet was called as .

Excel

PowerPoint

Word

VisiCalc

Question No: 5 ( Marks: 1 ) - Please choose one

Which is

correct?

onUnload

onUnLoad


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onUNLOAD

All of the above


Variables allow us to manipulate data through the

.

Actual Value

Reference Length

Name


We use to stop Break-Ins.

Scanners


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Intrusion detectors

Utilities

None of the given options


Which attribute of the IMG tag tells us about the source

of the image .

source

path

loc src


The developer report to in a development

team.

Team Lead

Project Manager CEO

IT Manager


The key responsibilities of the architect of the project is

.

Technology selection

High-level design Makes certain that the implementation remains true

to the design

All of the given options


Using smart editors they can automatically color

different parts of statements in different colors e.g.HTML tags in _color.

Green

Grey


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Blue


Question No: 12 ( Marks: 1 ) - Please choose one is responsible for all the essential operations

like basic house keeping, taskscheduling, etc. Also

contains low-level HW interfaces

Hardware

Device Manager

Kernel

Device Driver


Randomized algorithms are often than

deterministic algorithms for the same problem.

Simpler and more slow


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Simpler and more efficient

Complex and more efficient

Complex and more slow


Compound Statement after decision constructs in

JavaScript is enclosed with

( )

[ ]

{ }; { }


The key property of the Array object in JavaScript is

Value

Length

Name All of the given choices


Which protocol is used to send email ?

FTP

SMTP

TELNET

All of the given choices


Following is highest level of heading tag in list given

below.

H3

H4

H5 H2


Blue Pacific is a name of computer.


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Mini

Desktop

Micro

Super


correctness is easier to check as compared

with _

Syntactic, Semantic

Semantically, Syntactically


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Systematically, Semantically



refers maintaining the correctness and

consistency ofdata

Security

Integrity

Reliability

None of the given


Which of the following keyword is used to jump out

of switch statement as soon as the match is found?

Default

Else

Jump

Break


How much parameters does POW () function have?

2

1

3


How many types the string methods have?

1

2

3


The output ofdocument.write( "2" + Math.PI ) ; is


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.

23.141592653589793

3.146 2.3141592653589793

None ofthem


POP, IMAP and SMTP are related to one of the

following service/services?

Electronic Mail


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Instant Messaging

Both a andb

None ofabove

Question No: 26 ( Marks: 1 )

- Please choose one

is designed for

2D-Animation .

Flash Animation

HTMLimage class

Web Browser

HTML 2D class

Question No: 27 (

Marks: 2 )

Define the term 3DRendering

The process of converting information about 3-D

objects into a bit-map that canbe

Displayed on a 2-D

computerdisplay

Question No: 28 (

Marks: 2 )What is an

intelligent system?

An intelligent system is a dynamic system that utilises

computational intelligence (CI) to analyse

interconnections between causes, drivers and effects, so

as to model, predict and control their dynamic

interactions in a holistic manner

Question No: 29 (

Marks: 2 )


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Define testing with respect

toprogramming..

Question No: 30 (Marks: 2 )

What is a compiler? Write its one

benifit overinterpreter.

Compiler translates the program written in a HLL in

one go. The translated code is then used by the uP

whenever the program needs to be run

Interpreter translates the HLL program one

statement at time. It reads a single

statement, translates it into machine language and

passes that machine language code to

The uP and then translates the next

statement, and so on

Question No: 31 (

Marks: 3 )

Who is a Computing

Professional?

Professionals involved in the development and/or

maintenance of SW and/orcomputerHW

Computer scientists, software engineers,

computer engineers, and some ofthe telecom

engineers are generally classified as computing

professionals

Question No: 32 (

Marks: 3 )

What are TrojanHorses ?

Unlike viruses, they are

stand-aloneprograms


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The look like what they are not

They appear to be something interesting and

harmless (e.g. a game) but when they are executed,destruction results

Question No: 33 (

Marks: 3 ) What is

ICMP?


Write down the advantages of Natural Language

Processing.


Draw hierarchy of the people in the smallproject?


In a good presentation each slide should contain.

Heading

Phrases not sentences


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Sentences notphrases

Heading, sentences notphrases


Which one of the following is not an event handler'sattribute?

Function

Identifier

Equal sign

String consisting of JavaScript statements

Question No: 3 ( Marks: 1 ) -Please choose one

According to the heuristic, the number of defects

remaining in a system after a given level of tests is

proportional to .

The number found on very first day.

The number found during the development.

The number found during the test.

None of the given options.



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Which one is the best option for designing a Medical

Expert System?


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Rule Based System

Genetic Algorithm

Fuzzy Logic

NeuralNetwork


A combination of word processing and graphic design is

Corel Draw

Desktop Publishing

Paint

WordPad


Amicroprocessorcanbemademorepowerfulbyincreasingits

Clockfrequency

Word length

Clock frequency and Word length

None ofabove


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Security can also be improved through .

Encryption

Typing errors

Transmission errors

Hardware malfunctions


is a field that uniquely identifies each

record stored in a table.

Composite Key

Primary key

Foreign key



There are types oferrors.

2

3

4

5


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is simply a fast port that lets you connect

computer peripherals and consumerelectronics to your

computer without restart.

Freeware

Shareware

Firewire

Firmware


provides a simple, consistent way for applications

to interact with the HW without having to know all the

details of the HW

Explorer.exe

System Files

Operating System

Application Software


One can browse documents residing on a remotecomputer using _protocol.

HTTP

SMTP

FTP


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TELNET


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Which event handler executes the specified

JavaScript code when a window/form element loses

focus ?

onBlur

onLoad

onUnload

onFocus


Which event handler executes the specified

JavaScript code when a window/form element

receives focus ?

onBlur

onLoad

onUnload

onFocus


loop is a flow control statement

that allows code to be executed repeatedly based ona given Boolean condition.

For


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Do-While

If-else

While


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A B C D4

= =

Expression format in cell D4 is NOT correct.

True False


for(var i=1; i


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Sorted Words:



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Data integrity, in Database management system is

necessary because it:

Refers to provide insecurity to the data

Refers to provide security to the data

Refers to maintaining the correctness ofdata

Refers to maintaining the consistency of the data

Question No: 19 ( Marks: 1 ) -Please choose one

Which of the following formula is used in spreadsheet for

addition?

C6+E6

=C6+E6

6+6=12

6+E6


Which of the following keyword is used to jump out

of switch statement as soon as the match is found?

Default


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Else

Jump


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Break


How many types the string methods have?

1

2

3


Which Internet Service is comparatively Slow butInexpensive and Fast.

E-mail

Instant Messaging

Web

None of the given


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Coding is the responsibility of _

Software designer

Software developer

Project manager

None ofgiven


Run time error occurs when .

The complier compiles theprograms

The compiler ends the execution of theprogram

The compiler start running theprogram

The compiler finds a semantic error


Heuristics are .

Intelligent systems

Always ends with the solution of theproblem

Both of the given

None of the given


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What are application softwares? List down the names of

three application softwares.

Definition: Application Software are that software then

can interact directory with the user for performance of

respective type ofwork.

Following are the types of

Application Softwares:-

AutoCAD and Corel DrawBusiness SoftwareProductivit

y SW

GamesSoftware


Why Local variable is preferred over Global variable ?

In my point of view Global variable has some advantage

with Local variables ispreferred due to the followingreasons:-

When we declare any global variable in web page then in

case of error and logic its very difficult to see on which

line this variable is used and whats his value if we have

more than 2000 lines and all the functions in web page

using that Global Variable so Global variables can makethe logic of a Web page difficult to understand.

As we know we can use Global variable everywhere so

Global variables also make the reuse and maintenance


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of your code much more complex.


In JavaScript, what is event handling? What are the two

types ofevents?

In java script we can capture events on do some

operation on the basis of that particular event. For

example we want to load some data on web page then

with the help ofevent handling we can do this operationby using onLoad event.

We can put Event handlers in the body of web page

and also in attributes ofHTML. From the attribute we

can call any JavaScript function that will do his

operation and come back. Now we can also interact

with server side with the help of AJAX in JavaScript

function.


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In-Line Event Handling

We can place event handlers in the BODY part and also

in HTML attributes the event handlers attributes consist

of 3 parts the event handler, equal sign and a string of

JavaScript statement enclosed in quotes (single or

double). And one more thing these should be put in one

line without newline due to this sophisticated event

handling is notpossible with in-line event handling.


What is Structured Vector Graphics ?

This is a plug-in that is required to view swf (flash)

files in the web browser


What kind of new jobs are created because of

computing? And which old professions arebeing

eliminated?

Due to computing where people are getting benefits from

automated systems on the otherhand the people that are

with KHATA system or Manual system and they dont

know about computers are eliminated due to this reason

and people take place of manypeople. We can see in the

offices where before computer if there are four personrequired now only one person is required for example

with the help of database we can store more than

thousand of information and only one person is managing


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the whole data that is DBA. In the old system many

people are writing the data in registers and then its also

very

difficult to find the specific record.

Now we can see

companies are hiring:-

Data Entry Operators

System

Engineers

SoftwareDeveloper

DBA etc.



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What are Logic- or Time-Bombs ?

It execute the payload when predetermined event occurs

For example use type particular phrase and particular data

is reached.


What do you mean by FTP or File TransferProtocol?

This protocol is used to upload the files on remote

computers. This is used to transferfiles between

computer on TCP/IP network e.g. internet and now a

days many software are available for uploading files

using FTP like Mozila FTP, cute FTP etc.


Why should we, as computing professionals, be

interested in studying the social implications of our

creations?

If we see our life then we can judge computing

technology is changing our life fast ifwe compare withothertechnology.

We should highlight the mistakes and successes of the

past. We should learn then and select future direction

accordingly. Computers are keep becoming more and

morepowerful and gaining more autonomy.

Powerful GlobalCorporation. The

network

Organization


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How DoS attack is a cyber crime? For what cyber crimecan be used?

DoS is the crime but of a new type. A new type for

policing system is required to tackle such crimes.

Cyber Crime can be used to Damage a home

computer, Bring down the Business, Weaken the

financial and defense system ofcountry.


What are the key characteristics of internet? Writethe names of any five.


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Website design should NOT be .

Unified

Complex

Consistent

Predictable


TCP stands for .

Total communicationprotocol

Transmission controlprotocol

Transfer controlprotocol

Transfer collectionprotocol


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A vocabulary and set of grammatical rules for instructing

a computer to perform specific tasks is called

Software

Programming language

Device driver

Interpreter


A is a meaningful, easy-to-remember labelfor an IP address.

TCP address

Domain name

Networkname

VoIP


In spreadsheets, cell address A12 means .

Row A, Cloumn 12 Row 12, Cloumn A

Row 2,Cloumn A1


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Row A1, Cloumn 2


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According to the heuristic, the number of defects

remaining in a system after a given level of tests is

proportional to .

The number found on very first day.

The number found during the development.

The number found during the test.

None of the given options.

Question No: 8 ( Marks: 1 ) - Please choose oneWhich one is the best option for designing a Medical

Expert System?

Rule Based System

Genetic Algorithm

Fuzzy Logic

NeuralNetwork


Command that allows you to recover form mistakes is

called .

Clear


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Edit

Undo


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Break


The document.write( ) method expects as

its argument.

Integer

Float

String

Boolean

Question No: 11 ( Marks: 1 ) - Please choose oneWe use to stop Break-Ins.

Scanners

Intrusion detectors

Utilities



The developer report to in a developmentteam.

Team Lead

Project Manager

CEO


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IT Manager


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The key responsibilities of a project manager is

.

Planning and tracking of theproject

Arranging of the appropriate resources

Client relationship management



The key responsibilities of the architect of the project is.

Technology selection

High-level design

Makes certain that the implementation remains true

to the design All of the given options


The important attribute of image tag is

. src

image


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alt


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onAbort , onError are the of the imageobject.

Event Handler

Properties

Methods



Nowadays,userscommunicatewiththecomputerusing

aconsistentprovided by the

Operating System.

Command-line interface

Application Interface

UserInterface Protocol


One can browse documents residing on a remotecomputer using _protocol.

HTTP

SMTP


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FTP

TELNET


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Which of the following device can be used to control

networktraffic?

Cable

Connector

Hub

Repeater


User can remotely log on to a computer and can have acontrol over it like a local user using

TelNet Protocol

TelNet Protocol and connected to the user through

TCP/IP network

TelNet protocol and FTP

TCP/IP and FTP


If(studentMar

ks>70); (

document.write( "Grade A");

}

Which of following is correct format of above code:


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If(studentMarks>70); (



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};

If(studentMarks

70) (


}

If(studentMarks>70)

{

document.write( "Grade A");}

None of above options


Which of the following language is object based but notobject oriented language.

javascript

visualbasic

C++

C#


asin(x)standsfor Asynchronous sine

Alpha Sine


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Automated Sine


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ArcSine


The output of POW (3, 2) is .

6

4

9

12


The Right most portion or the third portion of the URLcontains .

Protocol Identifier

ServerName

DirectoryNameNone of the given


Which Image format is known as Lossless original

format.

JPEG

GIF


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Bitmap


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Vector


What is a function? Give

one example.

Answ

er:

Function is a reusable code (group of statement) that is

executed when the function is called. It is also known as

sub-program. Function is normally defined in the head

section of the code.


What is an

intelligent system?

Answ

er:

Intelligent systems are the programs developed to

perform complicated jobs that reflect human brain and

thoughts. If the algorithms are too much complex or can

not be solved instantly then we can use such systems.

Therefore the well intelligent system not only performs

well but it has the capability to rectify any errors by

himself if it occurs within his domain.

The examples of intelligent systems are Robotics,

Business Intelligence etc.


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What is meant by semantic error?

Answer:

It is an error which a developer encounters when a

statement is executed but it was not intended by him

(the developer). Such errors are very difficult to locate

during testing. Mostly these occur during abnormalcircumstances. It may be referred as the logical error.


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What is best algorithm?

Answer:

Greedy algorithm is the best algorithm as it is n

algorithm that always takes thebest immediate, or

local solution while finding an answer.


How can we include images in a web page using HTML

and Java script?

Answer:

Images can be included in HTML by employing tag, below is the format of


What are the Sub categories of Artificial

Intelligence? Briefly explain any two.

Answ

er:

1.

Robotics

These are the machines which are computer programmed


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and perform work which was previously done by

humans. They can be found in the manufacturing

industry, the military, space exploration and medical

applications.

2. Expert

Systems

These systems are designed to replace an expert.

The medical expert system is an example of such

system which can replace a Doctor/medical expert.


What are the steps of working of TCP and IP protocols

in internet transmission?


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Answer:

TCP divide messages in to many packets (capsulation)and sent these messages overthe internet and IP route

these messages on the internet to the correct destination

and upon reaching the messages on its destination the

messages are encapsulated.


Define professional ethics and its benefits with anexample?


Write JavaScript code for the following:

Make a function compareWithTen(value)

Compare the function argument with 10 and display a

message whether the value is less than, equal to or greater

than 10.


breaks down the message to be sent over the

internet intopackets.


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FTP

HTTP TCP (page.no.317)

IP


A protocol used for receiving email messages is called.

URL

Telnet

POP3 (page.no.213)

SMTP

Question No: 3 ( Marks: 1 ) -

Please choose oneAliasing problem can be

managedby

Reducing (page.no.236)

Increasing

Gaining

Modifying

the size ofpixels.

Question No: 4 ( Marks: 1 ) - Please choose oneVariables allow us to manipulate data through the

.

Actual Value

Reference (page.no.143)

Length

Name


The reserved word allows a determined

action to be taken if the first condition is false.


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For

While

Else

Switch


ERP is a type of .

Entertainment software


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Productivity software

Business software

Scientific software


What is/are the use/uses of Wordprocessor?

To write a letter

To write Research paper orreport

To create address labels

All of the given


Command that allows you to recover form mistakes iscalled .

Clear

Edit

Undo

Break

Question No: 9 ( Marks: 1 ) - Please choose oneAutomatic machines performing various tasks that were

previously done by humans, are called .

Robotics (page.no.244)

Computers

Decision Making Systems

Autonomous Web Agents

Question No: 10 ( Marks: 1 ) - Please choose oneThe is connected to all other modules of themicroprocessor.


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Control unit

Memory unit

Floating Point unit

Arithmetic and Logic unit


Database consisting of two or more related tables, is

called .

Flat file database

Object oriented database

Tabular storage database


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Relational database (page.no.263)

Question No: 12 ( Marks: 1 ) - Please choose one can be used for entering, editing, or viewing

data, one record at a time.

Queries

Forms (page.no.263)

Reports

None of the given option


DBMS supports data in terabytes. Personal

Desktop

Enterprise

Single-userQuestion No: 15 ( Marks: 1 ) - Please choose one

After the DoS attack in year 2000, Yahoo servers were

recovered in .

1 hour

2 hours

3 hours

4 hours


When web server is busy it gives the following message

to the user:

Time out

Waiting Serverbusy



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To stop industrial espionage, we use .

Private network

Encryption


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Networksniffer

All of the given options (page.no.277)


onAbort , onError are the of the image

object.

Event Handler(page.no.286) Properties

Methods



Processed data is called .

Information Data

Entity

Attribute


consists of cells arranged in rows & columns

Spreadsheets Software Wordprocessor

Presentation Software

Microsoft Paint Software


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Flow control constructs in JavaScript includes:

If-Else

Loops and If-Else Switch and If-Else

All of the given choices


Which is NOT true for JavaScript variable name ?

Student

Roll_no_1111 For

_schedule


In JavaScript, second element of an array has the index:

2 0

1

3

JavaScript Array Basi cs

5 May 2008 ... In this tutorial you learn what a

JavaScript array is, ... The first element hasan

index of 0, the second element has an index of 1,

... www . e l ate d . c o m /a r ti cles / ja v a sc r i p t- a r r a y -

b asics/ - Cac h ed - Si m ila r -


Which protocol is used to control other computer from

our own computer?

FTP

NNTP TELNET (page.no.211)

None of the given choices

Question No: 27 ( Marks: 1 ) -
http://www.elated.com/articles/javascript-array-basics/http://www.elated.com/articles/javascript-array-basics/http://www.elated.com/articles/javascript-array-basics/http://www.elated.com/articles/javascript-array-basics/


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Please choose one occurs

when a function calls itself.

Recursion


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Call by value

Call by reference

Parsing

Rec u r si o n - W i k i p e d ia, t h e fr e e encyclopedia

The function calls itself recursively on a smaller

version of the input (n - 1) and multiplies the result

of the recursive call by n, until reaching the ...

en.wikipedia.org/wiki/Recursion - Cac h ed -

S im i la r -


Which function returns a randomly selected floating

point number between 0 and 1 ?

floor(x)

ceil(x) random()

round(x)


Using Java Script you can write a character at random

location on screen

By applying randomCh() method

With the help of String object

With the help of random characterproperty

There is no built in approach in Java Script


The most used form tag is the tag.

True False



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What are the elements of website design? Any one


What kind of information can be stored in a database ?


What is meant by universal access of internet services ?

Question No: 34 (

Marks: 2 ) What is

the database?


The event handler attribute consists of three parts. Write

about each ofthem.


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What is difference between Design and System

Architecture?

Question No: 37 (

Marks: 3 ) What

are Trojan Horses ?


Differentiate between For and While loop by writing thesyntax of both loops.


Suppose we have a big project. Draw hierarchy of the

people involved in theproject?


Write down output for the following

JavaScript code. a)

document.write(Math.sqrt(25));

// output ?

b)

document.write(Math.pow(5, 3)); //output ?


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c)

document.write(Math.min(5, 3)); //

output ?

d)

document.write(Math.max(5, 3)); //

output ?

e)

document.write(Math.floor(9.87)); //

output ?


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Is tabular data storage better than flat file data storage?Justify youranswer.


A named collection of properties (data, state) and

methods (instruction, behavior) is called

. Array

Function

Variable

Object


JavaScript Variables are.

Dynamically Typed Statically Typed Strong Typed



Serial arrangement in which things follow logical order or

a recurrent pattern, such asstatements executing one by one, is called . Loop

Sequence

Condition


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Array

Question No: 5 ( Marks: 1 ) - Please choose oneRule of thumb learned through trial and error is called

.

Design

Heuristic Plan Aim


According to heuristic, if you cant explain it in

minutes, either you dont understand it or it does not

work.

10

2

5

4


To store rounded number of 8.6 in a variable called

"r_number", we write

.

r_numbers=Maths.rounds(8.6)

r_number=Math.rounds(8.6)

r_number=Math.round(8.6) r_number=Maths.round(8.6)


Using only HTML we can create

Dynamic webpages

Static web pages Both Static and Dynamicpages

None ofthese


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function returns the largest integer that is

less than or equal to x. round(x) floor ceil

abs(x)



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When web server is busy it gives the following messageto the user:

Time out

Waiting

Server busy None of the given options


is designed for detecting viruses andinoculating.

Antivirus Utility Trojan

None of the given choices


The is becoming the preferredorganizational structure for more and more organizations

with the passage oftime.

Tree structured organizational model

Networkparadigm Hierarchical structure None of the given options

Question No: 15 ( Marks: 1 ) - Please choose onePlanning and tracking of the project is the responsibility

of the .

Project Manager Architect Developer

Chief Executive Officer

Question No: 16 ( Marks: 1 ) - Please choose oneThe responsibilities of the Team Lead includes.

Planning and tracking of the project


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Detailed design

Professional development of team members



team is responsible for a project after

the specifications stage till the veryend.

Executive

Architect

Development HR


There are types oferrors.

2

3 4

5


Which one of these is NOT an example of storage

devices?

Tape

RAM

Floppy DVD


Forms can be submitted by using different

methods

2 3

4 5



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Which is NOT true for JavaScript variable name ?

Student

Roll_no_1111

For


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_schedule

Question No: 23 ( Marks: 1 ) - Please choose oneOne can browse documents residing on a remote

computer using protocol.

HTTP SMTP FTP

TELNET


Which one is the example of spreadsheet software ?

MS Word

MS PowerPoint

MS Excel MS Access


User can remotely log on to a computer and can have a

control over it like a local user using

TelNet Protocol

TelNet Protocol and connected to the user

through TCP/IP network TelNet protocol and FTP TCP/IP and FTP


Hardware malfunctions is related to

Data updates

Data integrity

Data security

Data accessibility


PowerBuilder falls in the category of .


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Assembly Languages

4-th Generation Languages

Machine Languages

High-Level Languages


Backbone is also called as .

vBNS BNS vHBNS


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HBNS

Question No: 29 ( Marks: 1 ) - Please choose oneGlobal variables can make the logic of a webpage.

Difficult to understand Easier to understand and maintain Difficult to reuse and maintain

Difficult to understand,

reuse and maintain


In JavaScript: In order to display the text on browser

Grade A, which offollowing statement is True.

documentwrite( "Grade A")

document.write( "Grade A"); document.write("Grade && A");

document.write("Grade && A");


What isbandwidth?

Bandwidth is a capacity of communication channel ofcarrying data.


What is My Personal Agent?

A computer programe that work automatically and havevoice interface


For what purposes FTP is used in networks ?

To download or upload files / data to a remote computer


How can you define a readableprogram?


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A program that is easy to read & understand also easy to

maintain and enhance.

Question No: 35 ( Marks: 3 )What is the preferred organizational structure for the

organization?

The Network Organization: It is becoming the preferred

organizational structure.


How can you define a consistent web design? Why is it

needed?

A consistent web design is Easy understandable, not

with heavy graphics, easy navigation. It is needed

because most of the website views leave the site because

ofpoornavigation and not easy to understand, text and

design is not clearetc.

Question No: 37 ( Marks: 3 )Elaborate Vector or Object oriented graphics with atleastone example.


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Vector treats everything that is drawn as object, they

are resolution in dependent and relatively small file

size. For example swg, svg, wmf.


What are the advantages of multimedia

presentations? Write any five. Multimedia

presentation is a great tool for effective

communication: Advantages:

1. Easy to make last minute change

2. More attractive

3. Can include animation, videos etc.4. Better presentation easy to understandable for

participants comparing to manual presentation.

5. Undo feature


Can a human doctor be replaced by an ExpertSystem? Give reasons to support your answer.

Expert System is a computer system which simulates the

knowledge and expertise ofa human expert. Yes, a

human doctor can be replaced by an Expert System.

Following are the reasons to support my answer:

1. A large database of knowledge can be added toand kept up to date, it can store more knowledge

than aperson.

2. The Expert System cannot FORGET or get facts


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wrong.

3. It survives forever. There is no loss of

knowledge as there is when a doctor retires.

4. The Expert System can access specialist knowledgethat a doctor may not have.


Explain the following issues of Data Management?

(3+4+3)

1. Data entry2. Data updates

3. Data security

DA TA ENTRY:There is new data entered every day.New customers are added every day.


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Some of the data entry requires the manual entry into

computersystem

New data entry needs to be entered correctly

DA TA UPDATES:Old titles must be removed regularlyData changes every time

Prices change

Transportation /

shipping cost changesCustomer personal data

changes Schemes

changing, new offers

Every new entry needs to be entered correctly

DA TA SECURITY:All data in the system is very critical to its operation, thesecurity of the customerspersonal data is most important. Most of the hackers

are always trying for that type ofinformation specially

Credit CardNumbers.

This problem can be managed by using proper securityarrangements and mechanisms that provides access to

only authorized entities. System Security can be

improved through, encryption, firewalls and updated

Antivirus Softwares


Write a note on the followings

a. Image

Preloadingprocess

b. Animated Gifs

IMA GE PRE LO AD IN G PR OCES S:


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The primary use of image preloading process is to

download the image into the cachebefore it is actually

needed to display.

PR O C E S S :1. An example of the image object is shaped usingthe NEW keyword2. The src property of this instance is set equal to

the filename of the image tobe pre-loaded

3. This step starts the down-loading of the image

into the cache without actually displaying

4. When a pre-loaded image is required to bedisplayed, the src property ofthe displayed image is

set to the src property of pre fetched image

AN I M A TE GIFS:


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We can save 16 gif images of the previous example in a

single file in the form ofan animated gif, and then used

it in a regular tag to display a moving image.

However, JavaScript provide better control over the

sequencing and the gap between the individual images.

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