comp quiz

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what is the full form of usb

universal serial cable

unit service cable

united serivice cable

universal serial bus

Submit

Who is the C.E.O of Apple ?

Tim

cook

Steve

ballmer

Jonathan

smith

Bill

Gates

Submit

What Linux command displays the last part of a filewithout editing it?

End

Foot

Last

Tail

What IRQ does COM1 commonly use?

2

1

4

3

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HTML Tags are case sensitive.

True

False

In Perl, what does a scalar variable always beginwith?

@

#

$

%

What is the maximum characters Linux supports inits filenames?

8

128

256

Unlimited

Full form of BIT?

Binary Digit

Binary Device

Busy Device

None

A set of 4 bit is called

Byte

Bit

Nibble

None

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What is the full form of "HTML"?

Hyper Tension Marking Language

Hyper Text Markup Language

Hyper Text Marking LAN

None Of the above

What is the full form of WiFi?

Wired Fiction

Wired Friction

Wireless Fidility

Wireless Fiction

What is the battery located on the Hard Disk of aComputer?

S-Soft

C-Mos

BIOS

Macintosh

"SMPS" stands for?

Switched Machine Powder Set

Simple Machinery and Protocol Service

Setting Mode Power Service

Switched Mode Power Supply

Submit

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A server is controlled by a/an?

HUB

USB

LAN

WAN

The programme/Software in Windows which helpsto protect the Computer info from being shared byother connected computers in a single server?

Windows Essentials

Windows Movie Maker

Windows FireWall

Windows XP

What does WAN stand for?

Wireless Area Network

Wired Area Network

Wired-cum-Wireless Area Network

Wide Area Network

This question has more than one option correct. You have to mark all the correct options.

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Facebook was created in the year?

2001

2004

2000

2002

The first iPhone was introduced in the year?

2007

2005

2006

None

Q.1)Another name for computer programs and information.

A. Output

B. Process

C. Software (Your Answer)D. CPU

Correct

Q.2)The part of a computer that allows the user to view information

on a screen.

A. Mouse

B. RAM

C. MotherboardD. Monitor (Your Answer)

Incorrect

Q.3) This part sends signals to other parts of the computer to tell themwhat to do.

A. CPU (Your Answer)

B. Motherboard (Correct Answer)

C. Icon

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D. Hard drive

Correct

Q.4)This is a flat input device that usually sits in front of the monitor.

A. Keyboard (Your Answer)

B. Tower

C. Mouse

D. Laptop

Correct

Q.5) This memory is for short term storage and is lost when thecomputer is turned off.

A. Icon

B. CPU

C. Hard drive

D. RAM (Your Answer)

Correct

Q.6)A name for a small picture or image representing a folder or a

program.

A. Graphic

B. Icon (Your Answer)

C. Software

D. Desktop

Correct

Q.7) This computer is small enough to fit on your lap and is very

portable.

A. Laptop (Your Answer)

B. Tower

C. Computer

D. Motherboard

Correct

Q.8)This part allows the user to hear information from the computer.

A. Monitor

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B. Software

C. Input

D. Speaker (Your Answer)

Correct

Q.9)Another name for all the parts of a computer.

A. Process

B. Hardware (Your Answer)

C. Monitor

D. Software

Correct

Q.10)This input device will allow the user to move the pointer on the

screen.

A.Mouse (Your Answer)

B.Speaker

C. Icon

D.Output

Unanswered

Q.11)This type of computer is tall rather than wide.

A.Laptop

B.Motherboard

C.Hard Drive

D.Tower (Correct Answer)

Correct

Q.12) This device allows the user to record or send their voice into the

computer.

A.Monitor

B.Microphone (Your Answer)

C.Output

D.Speaker

Correct

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Q.13)This part does the real calculation, moving and processing of

information.

A.CPU (Your Answer)

B. IBM

C.RAM

D.Hard Drive

Correct

Q.14)This is a type of computer that sets on a table or desk.

A.Keyboard

B.Laptop

C.Hard DriveD.Desktop (Your Answer)

Incorrect

Q.15) What are the 3 main things a computer does?

A.Input (Missed)

B.Save (Your Answer)

C.Output (Missed)

D.Process (Your Answer)

E.Reboot (Your Answer)

Unanswered

Q.16) This part stores data, programs, settings, and the operating systemwhile the computer is off. While it is on, it spins inside the computerreading and writing data.

A.CPU

B.MotherboardC.RAM

D.Hard Drive (Correct Answer)

Correct

Q.17)Select 2 input devices

A.Microphone (Your Answer)

B.Printer

C.Keyboard (Your Answer)

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D.Speaker

Incorrect

Q.18)ut devices

A.Scaner (Your Answer)

B.Speaker (Missed)

C.Printer (Missed)

D.Microphone (Your Answer)

E.Monitor (Missed)

Incorrect

Q.19)Name a type of Disk Drive.

(Single word or abreviation only please.)Ex.

A ____________ Disk Drive.

C(Your Answer)

Possible correct answers:floppy

flopy

hard

cd

dvd

Correct

Q.20)Name a type of Disk Drive.(Single word or abreviation only please.)Ex.

A ____________ Disk Drive.

floppy(Your Answer)


flopy

cd

dvd

hard

Unanswered


A ____________ Disk Drive.

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flopy

hard

cddvd

Correct

Q.22)Name of an Operating System

A.Dell

B.Windows XP (Your Answer)

C.Yahoo

D.Microsoft

Your Certificate

Print or Download Facebook Twitter

Your Result

Result Grade D

Your Answers Print Report

Correct

Q.1)Another name for computer programs and information.

A. Output

B. Process

C. Software (Your Answer)D. CPU
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Correct

Q.2)The part of a computer that allows the user to view information

on a screen.

A. Mouse

B. RAM

C. Motherboard

D. Monitor (Your Answer)

Incorrect

Q.3) This part sends signals to other parts of the computer to tell them

what to do.

A. CPU (Your Answer)

B. Motherboard (Correct Answer)

C. Icon

D. Hard drive

Correct

Q.4)This is a flat input device that usually sits in front of the monitor.

A. Keyboard (Your Answer)

B. Tower

C. Mouse

D. Laptop

Correct

Q.5) This memory is for short term storage and is lost when thecomputer is turned off.

A. Icon

B. CPU

C. Hard drive

D. RAM (Your Answer)

Correct

Q.6)A name for a small picture or image representing a folder or a

program.

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A. Graphic

B. Icon (Your Answer)

C. Software

D. Desktop

Correct

Q.7) This computer is small enough to fit on your lap and is veryportable.

A. Laptop (Your Answer)

B. Tower

C. Computer

D. Motherboard

Correct

Q.8)This part allows the user to hear information from the computer.

A. Monitor

B. Software

C. Input

D. Speaker (Your Answer)

Correct

Q.9)Another name for all the parts of a computer.

A. Process

B. Hardware (Your Answer)

C. Monitor

D. Software

Correct

Q.10)This input device will allow the user to move the pointer on the

screen.

A.Mouse (Your Answer)

B.Speaker

C. Icon

D.Output

Unanswered

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Q.11)This type of computer is tall rather than wide.

A.Laptop

B.Motherboard

C.Hard DriveD.Tower (Correct Answer)

Correct

Q.12)This device allows the user to record or send their voice into the

computer.

A.Monitor

B.Microphone (Your Answer)

C.Output

D.Speaker

Correct

Q.13)This part does the real calculation, moving and processing of

information.

A.CPU (Your Answer)

B. IBM

C.RAM

D.Hard Drive

Correct

Q.14)This is a type of computer that sets on a table or desk.

A.Keyboard

B.Laptop

C.Hard Drive

D.Desktop (Your Answer)

Incorrect

Q.15) What are the 3 main things a computer does?

A.Input (Missed)

B.Save (Your Answer)

C.Output (Missed)D.Process (Your Answer)

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E.Reboot (Your Answer)

Unanswered

Q.16) This part stores data, programs, settings, and the operating system

while the computer is off. While it is on, it spins inside the computerreading and writing data.

A.CPU

B.Motherboard

C.RAM

D.Hard Drive (Correct Answer)

Correct

Q.17)Select 2 input devices

A.Microphone (Your Answer)

B.Printer

C.Keyboard (Your Answer)

D.Speaker

Incorrect

Q.18)ut devices

A.Scaner (Your Answer)

B.Speaker (Missed)

C.Printer (Missed)

D.Microphone (Your Answer)

E. Monitor (Missed)

Incorrect


A ____________ Disk Drive.

C(Your Answer)


flopy

hard

cd

dvd

Correct

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A ____________ Disk Drive.

floppy(Your Answer)


flopy

cd

dvd

hard

Unanswered


A ____________ Disk Drive.


flopy

hard

cd

dvd

Correct

Q.22)Name of an Operating System

A.Dell

B.Windows XP (Your Answer)

C.Yahoo

D.Microsoft

Full Form of LAN- Local Area Network

Full form of WAN- Wide Area Network

Full form of MAN- Metropolitan Area Network

Full form of PAN- Personal Area Network

Full form of CAN- Campus Area Network

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Full form of JPEG- Joint Photographic Expert Group

Full form of GIF- Graphics Interchange Format

Full form of BMP- Bitmap

Full form of DIB- Device Independent Bitmap

Full form of BUS- Bidirectional Universal Switch

Full form of PSP- Playstation Portable

Full form of DVD- Digital Versatile Disk

Full form of HTTP- Hyper Text Transfer Protocol

Full form of TCP/IP- Transmission Control Protocol/Internet Protocol

Full form of ARPANET- AdvancedResearchProjectsAgencyNetwork

Intranet:

Its usage is within an organisation which uses the help of internet protocol.

Extranet:

An extranet is a computer network which allows controlled access from the outside, for specific

business or educational purposes.

ARPANET:

Made by US Department of Defence to communicate within the organization. Now it doesnt exist

Ethernet:

It is a cable which allows us to connect to the internet.

The Difference Between a Computer Virus, Worm

and Trojan Horse Trojan horse virus protection virus companion virus worm The Difference Between Adware & Spyware overwriting virus file infecting virus virus disinfection The Difference Between a Cell Phone, Smartphone and PDA

AntiVirus and AntiSpyware Software: What's The Difference? Banker Trojan
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Netbus malware

By: Vangie BealLast Updated: 06-10-2013 , Posted: 06-29-2010Viruses, worms and Trojan Horses are all malicious programs that can cause damage to your computer, butthere are differences among the three.

One common mistake that people make when the topic of a computer virus arises is to refer to awormorTrojanhorseas avirus. While the words Trojan, worm and virus are often used interchangeably, they are not exactly thesame thing. Viruses, worms and Trojan Horses are all maliciousprogramsthat can cause damage toyourcomputer, but there are differences among the three, and knowing those differences can help you betterprotect your computer from their often damaging effects.

What Is a Virus?Acomputervirus attaches itself to aprogramorfileenabling it to spread from one computer to another, leavinginfections as it travels. Like a human virus, a computer virus can range in severity: some may cause only mildlyannoying effects while others can damage yourhardware,softwareorfiles. Almost all viruses are attached toanexecutable file, which means the virus may exist on your computer but it actually cannot infect your computerunless you run or open the malicious program. It is important to note that a virus cannot be spread without ahuman action, (such as running an infected program) to keep it going. Because a virus is spread by human actionpeople will unknowingly continue the spread of a computer virus by sharing infecting files or sending emailswithviruses asattachmentsin the email.

What Is a Worm?A worm is similar to a virus by design and is considered to be a sub-class of a virus. Worms spread fromcomputer to computer, but unlike a virus, it has the capability to travel without any human action. A worm takesadvantage of file or information transport features on your system, which is what allows it to travel unaided.The biggest danger with a worm is its capability to replicate itself on your system, so rather than your computersending out a single worm, it could send out hundreds or thousands of copies of itself, creating a hugedevastating effect. One example would be for a worm to send a copy of itself to everyone listed in your e-mailaddress book. Then, the worm replicates and sends itself out to everyone listed in each of the receiver's address

book, and the manifest continues on down the line.Due to the copying nature of a worm and its capability to travel across networks the end result in most cases isthat the worm consumes too muchsystem memory(ornetworkbandwidth), causing Webservers, network serversand individual computers to stop responding. In recent worm attacks such as the much-talked-about BlasterWorm, the worm has been designed to tunnel into your system and allow malicious users to control yourcomputer remotely.

What Is a Trojan horse?A Trojan Horse is full of as much trickery as the mythological Trojan Horse it was named after. The Trojan Horse,at first glance will appear to be useful softwarebut will actually do damage once installed or run on yourcomputer. Those on the receiving end of a Trojan Horse are usually tricked into opening them because theyappear to be receiving legitimate software or files from a legitimate source. When a Trojan is activated on yourcomputer, the results can vary. Some Trojans are designed to be more annoying than malicious (like changing

yourdesktop, adding silly active desktop icons) or they can cause serious damage by deleting files and destroyinginformation on your system. Trojans are also known to create abackdooron your computer that gives malicioususers access to your system, possibly allowing confidential or personal information to be compromised. Unlikeviruses and worms, Trojans do not reproduce by infecting other files nor do they self-replicate.

What Are Blended Threats?Added into the mix, we also have what is called ablended threat. A blended threat is a more sophisticated attackthat bundles some of the worst aspects of viruses, worms, Trojan horses andmalicious codeinto one singlethreat. Blended threats can use server and Internet vulnerabilities to initiate, then transmit and also spread anattack. Characteristics of blended threats are that they cause harm to the infected system or network, theypropagates using multiple methods, the attack can come from multiple points, and blended threats also exploitvulnerabilities.To be considered a blended thread, the attack would normally serve to transport multiple attacks in one payload.

For example it wouldn't just launch a DoS attack it would also, for example, install a backdoor and maybeeven damage a local system in one shot. Additionally, blended threats are designed to use multiple modes of
http://www.webopedia.com/TERM/N/Netbus.htmlhttp://www.webopedia.com/TERM/N/Netbus.htmlhttp://www.webopedia.com/TERM/M/malware.htmlhttp://www.webopedia.com/TERM/M/malware.htmlhttp://www.webopedia.com/TERM/W/worm.htmlhttp://www.webopedia.com/TERM/W/worm.htmlhttp://www.webopedia.com/TERM/W/worm.htmlhttp://www.webopedia.com/TERM/T/Trojan_horse.htmlhttp://www.webopedia.com/TERM/T/Trojan_horse.htmlhttp://www.webopedia.com/TERM/T/Trojan_horse.htmlhttp://www.webopedia.com/TERM/T/Trojan_horse.htmlhttp://www.webopedia.com/TERM/V/virus.htmlhttp://www.webopedia.com/TERM/V/virus.htmlhttp://www.webopedia.com/TERM/V/virus.htmlhttp://www.webopedia.com/TERM/P/program.htmlhttp://www.webopedia.com/TERM/P/program.htmlhttp://www.webopedia.com/TERM/P/program.htmlhttp://www.webopedia.com/TERM/C/computer.htmlhttp://www.webopedia.com/TERM/C/computer.htmlhttp://www.webopedia.com/TERM/C/computer.htmlhttp://www.webopedia.com/TERM/C/computer.htmlhttp://www.webopedia.com/TERM/C/computer.htmlhttp://www.webopedia.com/TERM/C/computer.htmlhttp://www.webopedia.com/TERM/P/program.htmlhttp://www.webopedia.com/TERM/P/program.htmlhttp://www.webopedia.com/TERM/P/program.htmlhttp://www.webopedia.com/TERM/F/file.htmlhttp://www.webopedia.com/TERM/F/file.htmlhttp://www.webopedia.com/TERM/F/file.htmlhttp://www.webopedia.com/TERM/H/hardware.htmlhttp://www.webopedia.com/TERM/H/hardware.htmlhttp://www.webopedia.com/TERM/H/hardware.htmlhttp://www.webopedia.com/TERM/S/software.htmlhttp://www.webopedia.com/TERM/S/software.htmlhttp://www.webopedia.com/TERM/S/software.htmlhttp://www.webopedia.com/TERM/F/file.htmlhttp://www.webopedia.com/TERM/F/file.htmlhttp://www.webopedia.com/TERM/F/file.htmlhttp://www.webopedia.com/TERM/E/executable_file.htmlhttp://www.webopedia.com/TERM/E/executable_file.htmlhttp://www.webopedia.com/TERM/E/executable_file.htmlhttp://www.webopedia.com/TERM/E/e_mail.htmlhttp://www.webopedia.com/TERM/E/e_mail.htmlhttp://www.webopedia.com/TERM/E/e_mail.htmlhttp://www.webopedia.com/TERM/A/attachment.htmlhttp://www.webopedia.com/TERM/A/attachment.htmlhttp://www.webopedia.com/TERM/A/attachment.htmlhttp://www.webopedia.com/TERM/S/system.htmlhttp://www.webopedia.com/TERM/S/system.htmlhttp://www.webopedia.com/TERM/S/system.htmlhttp://www.webopedia.com/TERM/N/network.htmlhttp://www.webopedia.com/TERM/N/network.htmlhttp://www.webopedia.com/TERM/N/network.htmlhttp://www.webopedia.com/TERM/S/server.htmlhttp://www.webopedia.com/TERM/S/server.htmlhttp://www.webopedia.com/TERM/S/server.htmlhttp://www.webopedia.com/TERM/S/software.htmlhttp://www.webopedia.com/TERM/S/software.htmlhttp://www.webopedia.com/TERM/S/software.htmlhttp://www.webopedia.com/TERM/D/desktop.htmlhttp://www.webopedia.com/TERM/D/desktop.htmlhttp://www.webopedia.com/TERM/D/desktop.htmlhttp://www.webopedia.com/TERM/B/backdoor.htmlhttp://www.webopedia.com/TERM/B/backdoor.htmlhttp://www.webopedia.com/TERM/B/backdoor.htmlhttp://www.webopedia.com/TERM/B/blended_threat.htmlhttp://www.webopedia.com/TERM/B/blended_threat.htmlhttp://www.webopedia.com/TERM/B/blended_threat.htmlhttp://www.webopedia.com/TERM/M/malicious_code.htmlhttp://www.webopedia.com/TERM/M/malicious_code.htmlhttp://www.webopedia.com/TERM/M/malicious_code.htmlhttp://www.webopedia.com/TERM/M/malicious_code.htmlhttp://www.webopedia.com/TERM/B/blended_threat.htmlhttp://www.webopedia.com/TERM/B/backdoor.htmlhttp://www.webopedia.com/TERM/D/desktop.htmlhttp://www.webopedia.com/TERM/S/software.htmlhttp://www.webopedia.com/TERM/S/server.htmlhttp://www.webopedia.com/TERM/N/network.htmlhttp://www.webopedia.com/TERM/S/system.htmlhttp://www.webopedia.com/TERM/A/attachment.htmlhttp://www.webopedia.com/TERM/E/e_mail.htmlhttp://www.webopedia.com/TERM/E/executable_file.htmlhttp://www.webopedia.com/TERM/F/file.htmlhttp://www.webopedia.com/TERM/S/software.htmlhttp://www.webopedia.com/TERM/H/hardware.htmlhttp://www.webopedia.com/TERM/F/file.htmlhttp://www.webopedia.com/TERM/P/program.htmlhttp://www.webopedia.com/TERM/C/computer.htmlhttp://www.webopedia.com/TERM/C/computer.htmlhttp://www.webopedia.com/TERM/P/program.htmlhttp://www.webopedia.com/TERM/V/virus.htmlhttp://www.webopedia.com/TERM/T/Trojan_horse.htmlhttp://www.webopedia.com/TERM/T/Trojan_horse.htmlhttp://www.webopedia.com/TERM/W/worm.htmlhttp://www.webopedia.com/TERM/M/malware.htmlhttp://www.webopedia.com/TERM/N/Netbus.html

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transport. So, while a worm may travel and spread through e-mail, a single blended threat could use multipleroutes including e-mail, IRC and file-sharing sharing networks.Lastly, rather than a specific attack on predetermined .exe files, a blended thread could do multiple maliciousacts, like modify your exe files, HTML files and registry keys at the same time basically it can cause damagewithin several areas of your network at one time.Blended threats are considered to be the worst risk to security since the inception of viruses, as most blendedthreats also require no human intervention to propagate.

Tips to Combat Viruses, Worms and Trojan Horses on YourComputer

Keep The Operating System UpdatedThe first step in protecting your computer from any malicious there is to ensure that youroperating system(OS) isup-to-date. This is essential if you are running a Microsoft Windows OS. Secondly, you need to have anti-virussoftwareinstalled on your system and ensure youdownloadupdates frequently to ensure your software has thelatest fixes for new viruses, worms, and Trojan horses. Additionally, you want to make sure your anti-virusprogram has the capability to scan e-mail and files as they are downloaded from the Internet, and you also needto run full disk scans periodically. This will help prevent malicious programs from even reaching your computer.

Use a FirewallYou should also install afirewall. A firewall is a system that prevents unauthorized use and access to yourcomputer. A firewall can be either hardware or software. Hardware firewalls provide a strong degree of protectionfrom most forms of attack coming from the outside world and can be purchased as a stand-alone product or inbroadband routers. Unfortunately, when battling viruses, worms and Trojans, a hardware firewall may be lesseffective than a software firewall, as it could possibly ignore embedded worms in out going e-mails and see thisas regular network traffic.For individual home users, the most popular firewall choice is a software firewall. A good software firewall willprotect your computer from outside attempts to control or gain access your computer, and usually providesadditional protection against the most common Trojan programs or e-mail worms. The downside to softwarefirewalls is that they will only protect the computer they are installed on, not a network.It is important to remember that on its own a firewall is not going to rid you of your computer virus problems, butwhen used in conjunction with regular operating system updates and a good anti-virus scanning software, it willadd some extra security and protection for your computer or network.Did You Kno w... CodeRed, a blended threat, launched DoS attacks, defaced Web servers, and its variant,CodeRed II, left Trojan horses behind for later execution. CodeRed was processed in memory not on a harddisk allowing it to slip past some anti-virus products. Computer Economics has estimated the worldwide costof CodeRed at $2.62 billion dollars. [Source:Symantec Web site]

Key Terms To Understanding Computer Viruses: virus: A program or piece of code that is loaded onto your computer without your knowledge and runs against

your wishes. Trojan Horse: A destructive program that masquerades as a benign application. Unlike viruses, Trojan horses do

not replicate themselves worm: A program or algorithm that replicates itself over a computer network and usually performs malicious

actions blended threat: Blended threats combine the characteristics of viruses, worms, Trojan Horses, and malicious code

with server and Internet vulnerabilities . antivirus program: A utility that searches a hard disk for viruses and removes any that are found.
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