42340216-fall-2009-finalterm-opkst-cs101-bc090403561

7/27/2019 42340216-Fall-2009-FinalTerm-OPKST-CS101-Bc090403561

1/18

h ttp ://vu j anna t.n i n g .comBest Website To Help Vu Students

h ttp ://vuj anna t.n i n g .comBest Website To Help Vu Students
http://vujannat.ning.com/http://vujannat.ning.com/http://vujannat.ning.com/http://vujannat.ning.com/http://vujannat.ning.com/http://vujannat.ning.com/http://vujannat.ning.com/http://vujannat.ning.com/http://vujannat.ning.com/http://vujannat.ning.com/http://vujannat.ning.com/


2/18


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

Which of the following is NOT a category of MobileComputers?

Laptop Palmtop Desktop Wearable


TCP stands for .

Total communication protocol Transmission control protocol Transfer control protocol Transfer collection protocol


A named collection of properties (data, state) and

methods (instruction, behavior) is called

. Array Function Variable Object


A is a meaningful, easy-to-remember label for

an IP address. TCP address Domain nameNetwork name VoIP



3/18



Serial arrangement in which things follow logical order

or a recurrent pattern, such as statements executing one

by one, is called . Loop Sequence Condition Array


Which one of the following is NOT a component of Rule

Based System? Rule Compiler Rule Interpreter Rules Base Working Memory



4/18



AutoCAD falls in the category of

Engineering Applications

Graphics Applications

Scientific Applications

Business Applications


Programs that run on client machine and validate info

that a user enters in a form, are known as:

Server-Side Scripts

Client-Side Scripts

Super Scripts

Form Scripts


All the hardware components of the Computer system are

installed on-------------. Microprocessor Motherboard Monitor



5/18


Memory

Question No: 10 ( Marks: 1 ) - Please chooseone

In RDBMS, table rows are called .

Field Record Column Query

Question No: 12 ( Marks: 1 ) - Please choose

oneTribal flood network is a software.

DoS Scanning UtilityNone of the given options


To stop industrial espionage, we use . Private network EncryptionNetwork sniffer All of the given options


The responsibilities of the Team Lead includes.

Planning and tracking of the project Detailed design



6/18


Professional development of team members All of the given options

Question No: 15 ( Marks: 1 ) - Please choose

oneClient relationship management is the responsibility of

. Team Lead Project Manager Developer Quality Assurance Expert


is responsible for day to day operations.

CEO COO CMSO Developer


There are types of errors. 2 3 4



7/18


5


Sequence of steps that is taken to solve a problem is called.

Algorithm Operating System Application softwareNone of the given options


Which is NOT true for JavaScript variable name ?

Student Roll_no_1111 For_schedule


In JavaScript, first element of an array has the index: 1 -1 2None of the given choices


One can browse documents residing on a remote computer



8/18


using protocol.

HTTP SMTP FTP TELNET


One can run a program on a remote computer using

protocol. HTTP SMTP

FTP TELNET



9/18



There are ways of calling functions. One Three

Four

-Which protocol is use to transfer a file over the network ?

UDP FTP

TCP OSI


is the process of analyzing large databases to identify

patterns. Data normalization Data management

Data MiningNone of the given options


The first spread sheet program was invented by

Charles Babbage Dan Bricklin Paul Graham John von Neumann


From which of the following is NOT a technique



10/18


through which Security can be improved :

Private or virtual-private networks Firewalls Metal detectors Virus detectors



11/18



In JavaScript: In order to display the text on browserGrade A, which of following statement is True.

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

Question No: 31 ( Marks: 1 )SMTP stands for what?

Ans: Simple Mail Transfer Protocol

Question No: 32 ( Marks: 1 )

What is an IP address?

Ans: A unique identifier for a computer on a TCP/IP

network is called IP address.


What is spreadsheet? List any two jobs that it can do.

Ans: A spreadsheet- VisiCalc- was the first

popular application on PCs. Electronic

replacement for ledgers.

Used for automating engineering, scientific, but in

majority of cases, business calculations.

Question No: 35 ( Marks: 3 )What are the Sub categories of Artificial Intelligence?

Briefly explain any two. Ans: Many times are based on a



12/18


branch of computer science called artificial intelligence

Category of SW is designed to help business managers in

making effective decisions in complex situations based on

the analysis of the relevant dataFollowing two Sub categories of Artificial Intelligence are:

Productivity Software:

Most popular category in terms of licenses sold

Common features

Ability to simplify, automate everyday business tasks

Word Processors:

Probably the most popular productivity app

Initially designed as a replacement for the typewriter

Automation



13/18



What are Logic- or Time-Bombs ?Ans: It executes its payload when a predetermined eventoccursExample events:

A particular word or phrase

is typed. A particular date or

time is reached. Question

No: 37 ( Marks: 3 )

Diffentiate Local andGlobal Variables. Ans:Local or Function-level

VariableEffective only in the function in which they are declaredGlobal Variables

Visible everywhere on the Web page


How global corporations are becoming more powerful?Ans: Internet-based communication is allowing business

entities to coordinate the activities of their globally-spread

units with greater accuracy The knowledge gained by one

unit becomes available to all others very quickly All this

has made these business entities very powerful, even

more powerful than many nation-states.

Question No: 39 ( Marks: 5 )In a System having many parts to be designed, what typeof part one should always do first? Describe briefly.

Ans: A system has many parts to be designed like hard



14/18


part, simple part, quality part, development part in all the

system the hard part should be designed first because

hard part is necessary before all parts.


What are the phases of the DoS attack? Explain each phase

in detail.

Ans: The DoS SW is not custom SW, and can be

downloaded from the Internet. Therefore, it is difficult to

track the person who launched the attack by analyzing

that SW.

Three Phases of the DoS1. Search

2. Arm

3. Attack

Neutralizing the Attack

The engineers responsible for monitoring the traffic on

the Yahoo Web sites quickly identified the key

characteristics of the packets originating from thosedrones

Then they setup filters that blocked all those packets

BTW, the same type of attack brought down the CNN,

Buy, eBay, Amazon Websites the very next day of the

Yahoo attack

How to stop DoS attacks from taking place?

Design SW that monitors incoming packets, and on

noticing a sudden increase in the number of similar

packets, blocks them



15/18


Convince system administrators all over the world to

secure their servers in such a way that they cannot be

used as dronesCyber crime can

be used to:

Damage a home

computer Bring

down a business

Weaken the telecom, financial, or even defense-related

systems of a countryMail Bombing

A stream of large-sized emails are sent to an address,

overloading the destination account.

This can potentially shut-down a poorly-designed email

system or tie up the telecom channel for long periods

Defense: email filtering

Break-Ins

Hackers are always trying to break-in into Internet-

connected computers to steal info or plant malicious

programs

Defense:

Firewalls

Intrusion detectors

Other effective security policies

Credit Card FraudA thief somehow breaks into an ecommerce server and

gets hold of credit numbers and related info

The thief then uses that info to order stuff on the Internet



16/18


Alternatively, the thief may auction the credit card info on

certain Web sites setupjust for that purpose

Defense: Use single-use credit card numbers for your

Internet transactionsSoftware Piracy

Using a piece of SW without the authors permission or

employing it for uses not allowed by the author is SW

piracy

Defense: Various authentication schemes. They,

however, are seldom used as they generally annoy the

genuine users

Industrial Espionage

Spies of one business monitoring the network traffic of their

competitors

They are generally looking for info for future products,

marketing strategies, and even financial info

Defense: Private networks, encryption, network sniffers


Write HTML and JavaScript code for the requirementsshown in the diagram below. When ConvertoUpperCase

button is pressed, the entered text is converted to upper

case and result is displayed in the result text box. Similarly,

when ConvertoLowerCase button is pressed, the entered

text is converted to lower case and result is displayed in the

result text box.



17/18

h ttp ://vujanna t.n in g .com

Best Website ToHelp Vu Students

http://vujannat.ning.com/http://vujannat.ning.com/http://vujannat.ning.com/http://vujannat.ning.com/http://vujannat.ning.com/http://vujannat.ning.com/http://vujannat.ning.com/http://vujannat.ning.com/http://vujannat.ning.com/http://vujannat.ning.com/


18/18

function askupp

{

var x= prompt("Paste your uppercase text in here to be

translated into

Uppercase","ANYTHING")

if (x!==null && x=="")

{

document.write(x.toUpperrCase());

}

}

function ask low

{

var y= prompt("Paste your lowercase text in here

to be translated into lower case","anything")

if (y!==null && x==""){

document.write(x.toLow


42340216-fall-2009-finalterm-opkst-cs101-bc090403561

Documents