0% 0 Quiz no 4 1 / 100 1) The central processing unit: a) All of the these b) Interprets and executes instructions c) Does arithmetic and logic operations d) Communicates with other parts of the computer system 2 / 100 2) How may types of graphic cards are available in market? a) 3 b) 5 c) 2 d) 4 3 / 100 3) Which of the following coding schemes primarily.used by IBM? a) Unicode b) EBCDIC c) ASCII d) BCD 4 / 100 4) Which of the following is not a type of register? a) Program Counter b) Math coprocessor c) Accumulator d) Segment 5 / 100 5) An example of a pointing device used with portable computers is: a) Trackball b) All c) Touchpad d) Pointing stick 6 / 100 6) How many characters can Unicode represcnt? a) 65,536 b) 500 c) 10,000 d) 15,000 7 / 100 7) A common type of diagram in most project management software is : a) CASE tool b) Data flow diagram c) System flowchart d) Gantt chart 8 / 100 8) GB is approximately : a) 100KB b) 100MB c) 1024MB d) 1000KB 9 / 100 9) In the e-mail address me@pu.edu, the world “me” is: a) Password b) Client computer c) Server name. d) User name 10 / 100 10) Exhaustive data gathering is done during : a) Development b) Analysis c) Preliminary Investigation d) Design 11 / 100 11) 1 MB is approximately : a) 1024bytes b) 100KB c) 1024KB d) 1KB 12 / 100 12) Mobile phone(Cellular) systems often use: a) MAN b) WAN c) NAN d) LAN 13 / 100 13) Which of the following has the fastest speed? a) ROM b) EEPROM c) SRAM d) Cache 14 / 100 14) Which of the following is used to find information on the World Wide Web? a) Website b) Web Browser c) Search engine d) Web server 15 / 100 15) The types of files that can be attached to an e-mail message include: a) Graphics b) All c) Text d) Spreadsheets 16 / 100 16) The devices use to enter data or instruction in a computer include : a) Microphone b) Keyboard c) Mouse d) All 17 / 100 17) A collection of millions of computers connected to one another is called a) Intranet b) World Wide Web c) Internet d) Web Browser 18 / 100 18) The step that performs the actions given in the instructions is called: a) Calculate b) Decode c) Execute d) Fetch 19 / 100 19) Data link have two separate sub-layers known as: a) TOKEN and RING b) Ethernet c) LLC and MAC d) CS And MA 20 / 100 20) NIC stands for: a) Network Internal Card b) Newer Industrial Computer c) Networking Internet Connection d) Network Interface Card 21 / 100 21) The keyboard format that is most commonly used is the : a) TWRITER b) QWERTY c) SPLITER d) DVORAK 22 / 100 22) An identifiable location in memory where data are kept is called: a) Location b) Cell c) Address d) none of these 23 / 100 23) The process of transferring a file from our own computer to the remote computer on a network: a) Uploading b) Downloading c) Sharing d) Pasting 24 / 100 24) Monitors differ in: a) All b) Standard c) Resolution d) Size 25 / 100 25) Which of the following tasks is not part of the systems analyst role : a) Programming b) Planning c) Coordination d) Communication 26 / 100 26) Which type of diagram shows how information flows through a system : a) DFD b) Logic flowchart c) Decision chart d) Gantt chart 27 / 100 27) CPU includes all of the following components EXCEPT a) Primary storage b) Register c) Control Unit d) ALU 28 / 100 28) The types.of signals can be: a) Digital and Analog b) Digital c) Analog d) Analog 29 / 100 29) CPU places address in______if memory location is to be read: a) MBR b) MAR c) Accumulator d) PC 30 / 100 30) The symbol that separates different parts of an e-mail address is: a) $ b) ^ c) @ d) # 31 / 100 31) The services on the Internet include a) ALL b) FTP c) WWW d) E-MAIL 32 / 100 32) A collection of related web pages is called: a) Linking b) Downloading c) Uploading d) Web Pages 33 / 100 33) Which of the following devices uses parallel transmission? a) All b) .Keyboard c) Mouse d) Printer 34 / 100 34) Select unguided media from the following: a) Satellite b) Coaxial c) Fiber optic d) Twisted pair 35 / 100 35) Transfers data between main memory and I/O devices without using CPU? a) DDA b) DMA c) BRA d) Port 36 / 100 36) ISDN stands for: a) Internet Service Digital Network b) Improved Speed Down Network c) Integrated Services Digital Network d) Improved Speed Digital Network 37 / 100 37) The speed of laser printer is measured in : a) Words per min b) Page per min c) Lines per min d) Character per sec 38 / 100 38) Which is the most secure type of transmission medium? a) Microwave b) .Coaxial cable c) Twisted-wire pair d) Fiber-optic cable 39 / 100 39) A bus line consists of: a) Registers b) Accumulators c) Parallel lines 40 / 100 40) 1 Terabyte (TB) =____ bytes : a) 2×10 b) 2×40 c) 2×20 d) 2×30 41 / 100 41) The size of the file that can be attached to an email depends on: a) Email Protocol b) Email client c) Web browser d) Service provider 42 / 100 42) Which of the following is not a communication media? a) Microwave b) Modem c) Twisted Pair d) Fiber optic 43 / 100 43) The typical fiber optic cable consists of very narrow strand of glass called: a) Cladding b) Sheet c) Core d) Base 44 / 100 44) The dots that compose the image of a digital photograph are called: a) Pixels b) Dot matrix c) Digital points d) Resolution 45 / 100 45) Which method is used to collect information from many people in organization : a) Interview b) Questionnaires c) Observation d) Sampling 46 / 100 46) Additional data and program not being used by CPU are stored in : a) CPU b) Input devices c) Secondary storage d) Output devices 47 / 100 47) Which of the following coding schemes uses 4-bit code? a) Unicode b) BCD c) EBCDIC d) ASCII. 48 / 100 48) A major category of software is : a) Application and system b) System and development c) Application and design d) System and design 49 / 100 49) Which multiplexing technique shifts each signal to a different carrier frequency? a) TDM b) TTD c) FDM d) DFM 50 / 100 50) The cheapest form of printer available for PC is : a) Thermal b) Inkjet c) Dot-Matrix d) Laser 51 / 100 51) Every webpage has unique address on the World Wide Web known as: a) Hyperlink b) HTTP c) HTML d) URL 52 / 100 52) Which memory is used to speed up the computer processing? a) Cache b) BIOS c) ROM d) RAM 53 / 100 53) The technology of long-distance communication is known as: a) Telephony b) Telecommunications c) Mass communication d) Telegraphy 54 / 100 54) A set of documents stored on computer permanently connected with Internet is: a) FTP b) LAN c) WWW d) Telnet 55 / 100 55) Which value in start bit indicates that the transmission line is idle? a) .2 b) .1 c) .4 d) .3 56 / 100 56) The modern revolution in information technology can be termed as : a) Communications revolution b) All c) Computer revolution d) Information revolution 57 / 100 57) The process of storing the programs and data in memory is called. a) CPU b) Data communication c) Floppy Disk d) Stored-program concept 58 / 100 58) BIT stand for : a) Binary digit b) Base digit c) Byte digit d) Bit digit 59 / 100 59) The term that refers to all input,output,and Secondary storage devices is : a) Peripheral b) Network c) Central d) Attached 60 / 100 60) Unicode uses: a) 132-bit’ b) 32-bit c) 64-bit d) 16-bit 61 / 100 61) Layer that is responsible for transferring frames is a) Data link layer b) transport layer c) Session layer d) Presentation layer 62 / 100 62) EBCDIC is a a) 8-bit b) 4-bit c) .6-bit d) 7-bit 63 / 100 63) Which of the following is general type of input devices : a) All b) Keyboard c) Pointing devices d) Source data-entery devices 64 / 100 64) Which of the following features is provided with a modem? a) Speeds b) Self-testing c) All d) Transmission rate 65 / 100 65) Which modem is used to transmit data signals through air instead of cable? a) External b) All c) Internal d) Wireless 66 / 100 66) The microphone converts the sound into: a) Computer file b) Mechanical signals c) Software d) Electrical signal 67 / 100 67) One or more computers connected to a hub is called: a) Ring network b) Band network c) Star Network d) Bus Network 68 / 100 68) A group of bits can represent : a) Colors b) Characters c) Sounds d) All 69 / 100 69) Junk email is called: a) Hoax b) Spam c) Virus d) Any 70 / 100 70) The set of rules to exchange data in a communications network is called: a) Token b) Procedure c) Protocol d) Method 71 / 100 71) Which of following protocols are properly researched, designed and finally published as a standard? a) De facto b) De jure c) ISO d) CCIT 72 / 100 72) The standard protocol for the Internet is: a) IP address b) TCP/IP c) IP protocol d) TCP 73 / 100 73) How many bits are in one byte : a) 8 b) 3 c) 4 d) 2 74 / 100 74) Television and radio broadcasts are examples of: a) Simplex transmission b) .Duplex transmission c) Half-duplex transmission d) Full-duplex transmission 75 / 100 75) What is the difference between hardware and software? a) Hardware is tangible but software is intangible b) Hardware is reliable but software is unreliable c) Hardware is metal but software is plastic d) Hardware is permanent but software is temporary 76 / 100 76) DPI stand for : a) Data per inch b) Digit per inch c) Decimal per inch d) Dot per inch 77 / 100 77) The hardware device that temporarily holds data and program is called : a) Secondary storage b) Primary storage c) CPU d) Output 78 / 100 78) Application software is available in many forms except : a) Commercial software b) Device drivers c) Scientific software d) Financial software 79 / 100 79) Modem stands for: a) Modification/demodification b) Modeling/Demonstration c) Modulation/demodulationn d) Mode/ Modeless 80 / 100 80) The higher number of pixels means: a) Greater cost saving b) Faster processing speed c) Sharper image d) Greater storage 81 / 100 81) The number of bits a computer can process at one time is sometimes called : a) Bit strength b) Crunch capacity c) Bit size d) Word size 82 / 100 82) A standard keyboard used in PC has how many keys : a) 104 b) 102 c) 101 d) 103 83 / 100 83) An organized set of related components is called : a) SDLC b) System c) Network d) Processing 84 / 100 84) Which of the following is NOT a benefit of computer networks? a) Produce high quality programs b) Connect people c) Enable shared applications d) Reduce hardware costs 85 / 100 85) The electronic circuit that executes Computer instruction is called a(n) : a) Keyboard b) CPU c) Monitor d) Hard disk 86 / 100 86) The bottem most layer of the OSI is called: a) Presentation b) Session c) transport d) Physical 87 / 100 87) Which of the following is communications device a) USB b) Router c) Ethernet d) UTP 88 / 100 88) which component of CPU interacts with primary memory? a) ALU b) BUS c) SAB d) Control unit 89 / 100 89) Which of the following consists of thin glass to transmit beams of light? a) Microwave b) Fiber-optic cable c) Coaxial cable d) Twisted pair 90 / 100 90) Route determination can be identified by: a) Presentation layer b) transport layer c) Network layer d) Session layer 91 / 100 91) Which device is used to capture video using standard analog camcorder or VCR: a) Image recorder b) Digital camcorder c) Video digitizer d) Video captures card 92 / 100 92) Bps is short for: a) Binary packets a second b) Bits per second c) Bytes per second d) Baud per second 93 / 100 93) A collection of documents stored on computes permanently connected with Internet around the worl a) Email b) WWW c) Telnet d) FTP 94 / 100 94) A collection of computers connected together to share resources and informal called: a) Computer Interconnecting b) Computer Network c) Computer linking d) Computer sharing 95 / 100 95) A fiber-optic cable’s core is measured in: a) Microns b) AWG c) Centimeters d) Inches 96 / 100 96) The World Wide Web was introduced in: a) 1960s b) 2000 c) 1989 d) Mid-1970s 97 / 100 97) Mail services are available to network users through the_______layer. a) Session b) Application c) Transport d) Presentation 98 / 100 98) Frequency is measured in: a) Bps. b) Seconds c) Hertz d) Amps 99 / 100 99) The operation of arithmetic and logic unit is directed by: a) Processor b) Memory Unit c) ALU itself d) Control unit 100 / 100 100) The electron beam scanning is a characteristic of: a) Laser printers b) Cathode ray tubes c) Flat panel monitors d) Liquid crystal display Your score is LinkedIn Facebook Twitter VKontakte Post Views: 143 Post navigation AIOU test 5/01/2023 National University of Modern Languages Sector H-9, Islamabad Job Opportunities