A technique used by codes to convert an analog signal into a digital bit stream is known as

Options: Pulse code modulation,    Pulse stretcher,    Query processing,    Queue management



More Computer Fundamental Related questions:

Which of following commands is used for an automatic reminder service?
Options: write,    mesg,    calendar,    mail

Ans:C ,C

All the time a computer is switched on, its operating system software has to stay in
Options: main storage,    primary storage,    floppy disk,    disk drive

Ans:B ,B

Which of the following tools is not used for process descriptions?
Options: pseudocodes,    decision tables,    structured english,    data dictionaries

Ans:D ,D

The chmod ugo+rw note command can be represented in octal notation as
Options: chmod 555 note,    chmod 666 note,    chmod 444 note,    chmod 333 note

Ans:B ,B

. Internal commands are
Options: a. Incorporated in the command.com b. Incorporate in the command directory c. Have external files d. All of the above

Ans:0 – a ,0 – a

Dirty read, nonrepeatable, and phantom reads are not possible in this instance.
Options: Read committed,    Read uncommitted,    Repeatable read,    Serializable

Ans:D ,D

What will be the output of the program (sample.c) given below if it is executed from the command line (turbo c under DOS)? cmd> sample Good Morning /* sample.c */ #include<stdio.h> int main(int argc, char *argv[]) { printf("%d %s", argc, argv[1]); return 0; }
Options: 3 Good,    2 Good,    Good Morning,    3 Morning

Ans:A ,A

Which of the following is not Modification of the Database
Options: Deletion B. Insertion C. Sorting D. Updating

Ans:– C ,

Which one of the following equations most directly determines the power dissipation of a resistance when you know the power dissipation of a resistance when you know the voltage drop and current?
Options: P = IE,    P = E2/R,    P = I2R,    I = P/E

Ans:A ,A

Which of the following is true about pseudocode
Options: A machine language,    An assembly language,    A high-level language,    All of the above

Ans:E ,E

In order to use a DBMS, it is important to understand
Options: the physical schema,    all sub-schemas that the system supports,    one subschema,    both (a) and (b)

Ans:C ,C

The value of each bead in heaven is
Options: A) 1 B) 3 C) 5 D) 7


ODBC core SQL grammar contains which of the following?:
Options: INSERT, UPDATE, DELETE only,    Stored procedures only,    Full SELECT (includes subqueries) only,    Both 1 and 3 above are contained in the ODBC core SQL.

Ans:D ,D

Theories are evaluated with
Options: data,    information,    principles,    propositions

Ans:D ,D

What will be the output of the program in Turbo C? #include<stdio.h> int main(int argc, char *argv, char *env[]) { int i; for(i=1; i<argc; i++) printf("%s\n", env[i]); return 0; }
Options: List of all environment variables,    List of all command-line arguments,    count of command-line arguments,    Error: cannot have more than two arguments in main()

Ans:A ,A

In digital computer, all the expressions are coded into
Options: Octal digits,    Binary digits,    Hexadecimal digits,    Decimal cligits

Ans:B ,B

Data encryption
Options: is mostly used by public networks,    is mostly used by financial networks,    cannot be used by private installations,    is not necessary, since data cannot be intercepted

Ans:B ,B

. To edit an already inserted embedded organization chart object by
Options: a. Double Click on the organization chart object b. CTRL + Click on the organization chart object c. SHIFT + Click on the organization chart object d. None of the above

Ans:4 – A ,4 – A

Which of the following is a problem of file management system?
Options: a. difficult to update b. lack of data independence c. data redundancy d. All of above

Ans:d,All of above

The primary tool used in structured design is a:
Options: data-flow diagram,    module,    structure chart,    program flowchart

Ans:C ,C

Which of the following are loaded into main memory when the computer is booted?
Options: internal command instructions,    external command instructions,    utility programs,    word processing instructions

Ans:A ,A

. A computer has very low failure rate because it uses electronic components. It produces very consistent results. This is highlighted by which of the feature of computer?
Options: A) Accuracy B) Reliability C) Versatility D) Automatic


Which device can understand difference between data & programs?
Options: Input device B. Output device C. Memory D. Microprocessor

Ans:– D ,

.   How do you add degrees of transparency to shapes such as arrows, so that the slide background shows though?
Options: a. Use #D style 4 button on the drawing toolbar b. Use the Set Transparent Color button on the Picture toolbar c. Use the Transparency slider in the Format AutoShapes dialog box d. All of above

Ans:0 – C ,0 – C

Which of the following instruction steps, would be written within the diamond-shaped box, of a flowchart?
Options: S = B - C,    IS A<10,    PRINT A,    DATA X,4Z

Ans:B ,B

. Current SIMMs have either __ or __ connectors (pins)
Options: A) 9 or 32 B) 30 or 70 C) 28 or 72 D) 30 or 72


Which command is used to delete the directory that is empty?
Options: a. Del *.* b. RD c. Erase d. MD

Ans:Answer: b. RD,Answer: b. RD

Where would you load the mouse driver mouse.sys?
Options: config.sys,    autoexec.bat,    win.ini,    io.sys

Ans:A ,A

. Computers built before the First Generation of computers were:

Options: A) Mechanical B) Electro-mechanical C) Electrical D) None of these


Which memory allocation policy allocate the largest hole to the process?
Options: Best-Fit B. Worst-Fit C. First-Fit D. None of them

Ans:– B ,

. To access properties of an object, the mouse technique to use is __________.
Options: a. dragging b. dropping c. right-clicking d. shift-clicking

Ans:6 – c ,6 – c

Websites without a database attached to them have which of the following characteristics?
Options: The ability to generate data via SQL.,    The inability to use a browser to display Web pages.,    Static information using HTML or JavaScript.,    The need to use TCP/IP as the network protocol.

Ans:C ,C

What is gutter margin?
Options: a. Margin that is added to the left margin when printing b. Margin that is added to right margin when printing c. Margin that is added to the binding side of page when printing d. Margin that is added to the outside of the page when printing

Ans:– C,– C

. Where will store data first time when you copy
Options: a. Clipboard b. Clipbook c. Hard disk d. CD

Ans:1 – a ,1 – a

Binary numbers need more places for counting because
Options: They are always big numbers,    Any no. of 0's can be added in front of them,    Binary base is small,    0's and l's have to be properly spaced apart

Ans:C ,C

Absolute Zero temperature equals
Options: 0o C,    -273o C,    -276o C,    25o C

Ans:B ,B

Which transmission mode is used for data communication along telephone lines?
Options: Parallel,    Serial,    Synchronous,    Asynchronous

Ans:B ,B

In laser technology, what happens during the transfer stage?
Options: Residual toner is transferred to the waste receptacle,    The laser transfers the image from the drum to the paper,    The image is transferred from the drum to the paper,    A negative charge is transferred to the surface of the drum

Ans:C ,C

The input and output devices are located away from the central computer facility in which particular type of processing.
Options: Time sharing,    Batch processing,    Interactive mode,    Real time processing

Ans:B ,B

Which of the following performs modulation and demodulation?
Options: fiber optic,    satellite,    coaxial cable,    modem

Ans:D ,D

The most common input device used today is
Options: Motherboard,   Keyboard,    Scanner,    Mouse


Which part interprets program instructions and initiate control operations.
Options: Input,    Storage unit,    Logic unit,    Control unit

Ans:D ,D

After typing header text, how can you quickly enter footer text?
Options:  A) Press PageDown key and type the text for footer, B) Click on Switch between Heder & Footer then type the text, C) Both of above, D) None of above,

Ans:C,Both of above

. The ..... program compresses large files into a smaller file
Options: a. WinZip b. WinShrink c. WinStyle d. None of above

Ans: a, a

The size of a field with Number data type can not be
Options: a. 2 b. 4 c. 8 d. 16

Ans:ndash; d,ndash; d

. which function will calculate the number of workdays between 6/9/2004 and 8/12/2004?
Options: a. Workday b. Date c. Networkdays d. All of the above

Ans:– d,– d

Which of the following allow you to select more than one slide in a presentation?
Options: a. Alt + Click each slide b. Shift + drag each slide c. Shift + Click each slide d. Ctrl + Click each slide

Ans: – C , – C

Many data communication networks have been established which provide a wealth of on-demand information services to people at home. What is the name of the system which provides an interactive, graphics-rich service that permits user to select what they want?
Options: Teletex system,    Fax system,    Videotex system,    Microwave system

Ans:C ,C

An IRQ allow interface cards to:
Options: Interrupt the CPU to request service,    Pass data to the CPU to be processed,    Pass data from one card to another,    Pass data to the computers memory

Ans:A ,A

You can enter which types of data into worksheet cells?
Options: a. Labels, values, and formulas b. Labe3ls and values but not formulas c. Values and formulas but not labels d. Formulas only

Ans:#8211; a,#8211; a