The unit of a computer system that executes program, communicates with and often controls the operation of other subsystems of the computer is known as


Options: CPU,    Control Unit,    I/O unit,    Peripheral unit

Ans:A,A






More Computer Fundamental Related questions:


. Who invented the high level language C?

Options: A) Dennis M. Ritchie B) Niklaus Writh C) Seymour Papert D) Donald Kunth

Ans:A,A


The advantage of a command processor running only built-in commands is:
Options: flexibility to the users in running lists of commands by simply collecting them in named batch command files,    the command set being common across different hardware configurations,    users can create system programs and run them as commands,    the processing is much faster than would other-wise be the case when user defined commands are used

Ans:B ,B


Which is not necessary when using bar codes in supermarkets?
Options: Point-of sale (POS) terminal,    Check digit on the bar code,    Price on the shelf,    Price on the goods

Ans:C ,C


Data security threats include
Options: hardware failure,    privacy invasion,    fraudulent manipulation of data,    All of the above

Ans:B ,B


The monitor of a computer is connected to it by a
Options: Wire,    Cable,    Bus,    Line driver

Ans:B,B


Which keystroke is used for updating a field?
Options: A. F6 B. F9 C. F11 D. F12

Ans:B ,F9


In laser printer technology, what happens during the conditioning stage?
Options: The corona wire places a uniform positive charge on the paper,    A uniform negative charge is placed on the photosensitive drum,    A uniform negative charge is placed on the toner,    All of the above

Ans:B ,B


Which gate only sends one through if neither of its terminals receives a pulse.
Options: NOT,    NOR,    OR,    NAND

Ans:B ,B


. The OS used to operate the mobile phone is a
Options: a. Smart card OS b. Embedded OS c. Multiuser OS d. None of above

Ans:1 – b ,1 – b


Data base preparation would be most difficult in a(n)
Options: college or university,    supermarket,    hospital,    bank

Ans:D ,D


A memory bus is mainly used for communication between
Options: processor and memory,    processor and I/O devices,    I/O devices and memory,    input device and output device

Ans:A ,A


. What is the easiest method to run MS Dos in Windows environment?
Options: a. My computer b. Go to Dos from Start menu c. Click on icon on desktop d. Type Command in run dialog box

Ans:4 – d ,4 – d


98. What is the shortcut key to “Insert Hyperlink” in a document?
Options: a. Ctrl + H b. Ctrl + L c. Ctrl + K d. None of above

Ans:–  C ,–  C


Which of the following input/output devices is not associated with personal computers?
Options: mice,    color monitors,    punched cards,    dot-matrix printers

Ans:C ,C


A shared database should:
Options: be accurate and available.,    provide for backup and recovery.,    be secure.,    All of the above.

Ans:D ,D


The object-oriented development life cycle is which of the following?
Options: Analysis, design, and implementation steps in the given order and using multiple iterations.,    Analysis, design, and implementation steps in the given order and going through the steps no more than one time.,    Analysis, design, and implementation steps in any order and using multiple iterations.,    Analysis, design, and implementation steps in any order and going through the steps no more than one time.

Ans:A ,A


Which command loads a new version of the Cisco IOS into a router?
Options: copy flash ftp,    copy ftp flash,    copy flash tftp,    copy tftp flash

Ans:D ,D


. Which language is directly understood by the computer without translation program?
Options: A) Machine language B) Assembly language C) High level language D) None of above

Ans:A,A


. Ctrl + Z
Options: Undo the last Action B. Redo the last Action C. Add the new page D. Paste the contents from clipboard

Ans:– A ,


Relations are:
Options: two-dimensional tables.,    three-dimensional tables.,    four-dimensional tables.,    five-dimensional tables.

Ans:A ,A


In a relational schema, each tuple is divided into fields called
Options: Relations,    Domains,    Queries,    All of the above

Ans:B ,B


A view is which of the following?
Options: A virtual table that can be accessed via SQL commands,    A virtual table that cannot be accessed via SQL commands,    A base table that can be accessed via SQL commands,    A base table that cannot be accessed via SQL commands

Ans:A ,A


. Another word for a daisy wheel printer
Options: A) Petal printer B) Golf ball printer C) Laser printer D) Line printer

Ans:B,B


Which one of the following statements most accurately reflects the nature of ac power?
Options: The current in an ac circuit flows in one direction, but changes value periodically,    The current in an ac circuit flows in one direction at a steady level,    The current in an ac circuit changes direction periodically,    The current in an ac circuit flows in two directions at the same time

Ans:C ,C


. Who invented Integrated Circuits?
Options: A) Jack Kilby B) Robert Noyce C) Both of above D) None of above

Ans:C,C


Which of the following is a serious problem of file management systems?
Options: difficult to update,    lack of data independence,    data redundancy,    program dependence

Ans:E ,E


You connect a host to a switch port, but the new host cannot log into the server that is plugged into the same switch. What could the problem be?
Options: The router is not configured for the new host.,    The VTP configuration on the switch is not updated for the new host.,    The host has an invalid MAC address.,    The switch port the host is connected to is not configured to the correct VLAN membership.

Ans:D ,D


. The Stepped Reckoner was invented by

Options: A) John Napier B) William Oughtred C) Gottfried Leibnitz D) Blaise Pascal

Ans:C,C


  To place something in the same position on every slide of presentation automatically, insert into A.  Slide master B.  Notes master C.  Handout master D.  None of the above
Options:

Ans:– A ,


A machine that connects to two or more electronic mail systems and transfers mail messages among them is known as
Options: Gateways,    mail gateway,    bridges,    User Agent

Ans:B ,B


To find out how much memory is available, you could type______.
Options: EMM,    MEM,    CHKDSK,    MEMMAKER

Ans:B ,B


Point out the error in the following program. #include<stdio.h> int main() { char str[] = "IndiaBIX"; printf("%.#s %2s", str, str); return 0; }
Options: Error: in Array declaration,    Error: printf statement,    Error: unspecified character in printf,    No error

Ans:D ,D


Which of the following is not a reason that operational data are difficult to read?
Options: Non-duplicated data,    Dirty data,    Missing values,    Non-integrated data

Ans:A ,A


To open Columns dialog box quickly
Options:  A) double click on the left margin area of ruler, B) double click the space between area on ruler, C) double click the right margin in ruler, D) All of above, 

Ans:-B,-B


Primary storage is _____ as compared to secondary storage.
Options: Slow and inexpensive,    Fast and inexpensive,    Fast and expensive,    Slow and expensive

Ans:C ,C


Data Definition Language (DDL)
Options: describes how data are structured in the data base,    specifies for the DBMS what is required; the techniques used to process data,    determine how data must be structured to produce the user's view,    All of the above

Ans:A ,A


Your router has the following IP address on Ethernet0: 172.16.2.1/23. Which of the following can be valid host IDs on the LAN interface attached to the router? 172.16.1.100 172.16.1.198 172.16.2.255 172.16.3.0
Options: 1 only,    2 and 3 only,    3 and 4 only,    None of the above

Ans:C ,C


What do you call the translator which takes assembly language program as input & produce machine language code as output?
Options:  Compiler B.  Interpreter C.  Debugger D.  Assembler

Ans:– D ,


An information processor includes
Options: the data base and the model base,    the central processing unit,    incoming data and outgoing information,    incoming data, the central processing unit, the model base, outgoing information, and the data base

Ans:D ,D


Which of the following is not a Storage Manager Component?
Options: Transaction Manager B. Logical Manager C. Buffer Manager D. File Manager

Ans:– B ,


Which symbol will be used with grep command to match the pattern pat at the end of a line?
Options: ^pat,    $pat,    pat$,    pat^

Ans:C ,C


Contention is
Options: One or more conductors that serve as a common connection for a related group of devices,    a continuous frequency capable of being modulated or impressed with a second signal,    the condition when two or more stations attempt to use the same channel at the same time,    a collection of interconnected functional units that provides a data communications service among stations attached to the network

Ans:C ,C


How does a host on an Ethernet LAN know when to transmit after a collision has occurred? In a CSMA/CD collision domain, multiple stations can successfully transmit data simultaneously. In a CSMA/CD collision domain, stations must wait until the media is not in use before transmitting. You can improve the CSMA/CD network by adding more hubs. After a collision, the station that detected the collision has first priority to resend the lost data. After a collision, all stations run a random backoff algorithm. When the backoff delay period has expired, all stations have equal priority to transmit data.
Options: 1 and 3,    2 and 4,    1,3 and 4,    2 and 5

Ans:D ,D


Inverted list organization
Options: means storing records in contiguous blocks according to a key.,    Stores records sequentially but uses an index to locate records,    uses an index for each key type,    has records placed randomly throughout the file

Ans:C ,C


What is the storage capacity of a Hollerith card which is organized into nibbles?
Options: 32,    64,    128,    240

Ans:D ,D


. Which command is used to get the current date only?
Options: a. Date b. Time c. Second d. All of the above

Ans:Correct Answer: a ,Correct Answer: a


. To store your picture in a database requires a(n) __________ field.
Options: a. BLOB b. text c. image d. logical

Ans:3 – a ,3 – a


Which of following is Not one of Excel’s what-if function?
Options: a. Goal seek b. Solver c. Scenario manager d. Auto Outline

Ans:#8211; d,#8211; d


The total impedance of a parallel RLC circuit:
Options: always increases as the applied frequency increases,    is equal to the sum of the values of resistance, inductive reactance and capacitive reactance,    always decreases as the applied frequency increases,    is maximum at the resonant frequency

Ans:D ,D


Control of computer system or subsystem operation by an operator who may intervene at arbitrary times is
Options: Manual control,    Mapping,    Shift register,    ALU

Ans:A ,A

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