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

Ans:A,(Aanswer


Description:

Asked in: KCC-2018   |   JOA 556-2018  |  HRTC JTO-2017

Hits Today: 9275 | Level: Moderate


******************************************************

Want to see where do you stand among other aspirants in "Computer" category?

Click Here to take quick 10 mins MCQ test to find out.




Got some suggestion about this question or to make this site better? Please leave your comments below.




More Computer Fundamental Related questions:


. To print the PowerPoint presentation, press
Options: a. Ctrl + T b. Ctrl + E c. Ctrl + S d. Ctrl + P

Ans:4 – D ,4 – D


. What is an index?
Options: a. A wizard that creates a functional database structure based on the user’s selections b. A widely recognized naming convention for database objects c. A sort order for records, which is identified in the table design d. A set of relationship rules that enforce defined database relationships

Ans:4 – c ,4 – c


What will be the output of the program? #include<stdio.h> int main() { typedef int LONG; LONG a=4; LONG b=68; float c=0; c=b; b+=a; printf("%d,", b); printf("%f\n", c); return 0; }
Options: 72, 68.000000,    72.000000, 68,    68.000000, 72.000000,    68, 72.000000

Ans:A ,A


What type of RJ45 UTP cable is used between switches?
Options: Straight-through,    Crossover cable,    Crossover with a CSU/DSU,    Crossover with a router in between the two switches

Ans:B ,B


Which is considered a direct entry input device?
Options: Optical scanner,    Mouse,    Light pen,    Digitizer

Ans:E ,E


. Which of the following is not valid version of MS Office?
Options: a. Office XP b. Office Vista c. Office 2007 d. None of above

Ans:– B,– B


World Wide Web is being standard by
Options: a. Worldwide corporation b. W3C c. World Wide Consortium d.World Wide Web Standard

Ans:b,b


. The instructions for starting the computer are house on
Options: A) Random access memory B) CD-Rom C) Read only memory chip D) All of above

Ans:7-C,7-C


To connect a computer with a device in the same room, you might be likely to use
Options: a coaxial cable,    a dedicated line,    a ground station,    All of the above

Ans:A ,A


. Which of the following does not occur during the power-on-self-test (POST)?
Options: a. The scandisk utility begins to run b. The video card and video memory are tested c. The BIOS identification process occurs d. Memory chipare checked to ensure that they are working properly

Ans: a, a


To create primary key for a table when in design view
Options: a. Type PRIMARY in field type box when creating required field, b. Mark the Primary check box in field name of required field, c. Click the Primary Key button in Design ribbon when the cursor is in required field, d. None of the above

Ans:C,Click the Primary Key button in Design ribbon when the cursor is in required field


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


. Background color or effects applied on a document is not visible in
Options: a. Web layout view b. Print Layout view c. Reading View d. Print Preview

Ans:– D,– D


A database server is responsible for which of the following?
Options: Database storage,    Data processing logic,    Data presentation logic,    All of the above.

Ans:A ,A


Operational budgeting require how many data files that would not otherwise be needed?
Options: 3,    2,    1,    0

Ans:D ,D


The first cell in EXCEL worksheet is labeled as
Options: AA B. A1 C. Aa D. A0

Ans:– B ,


An anti static strap uses a small _____ to make sure you do not become the least path of resistance to the ground?
Options: capacitor,    diode,    transistor,    resistor

Ans:D ,D


The tracks on a disk which can be accessed without repositioning the R/W heads is
Options: Surface,    Cylinder,    Cluster,    All of the above

Ans:B ,B


To save a workbook, you:
Options: a. Click the save button on the standard toolbar from the menu b. Press Ctrl+F5 c. Click Save on the Windows Start button d. Select Edit>Save

Ans:#8211; a,#8211; a


While working with MS-DOS, which command will you use to display the version?
Options: DATE Command,    VER Command,    DISK Command,    FORMAT Command

Ans:B ,B


. In computing and electronic systems BCD is abbreviation of
Options: Binary Coded Decimal B. Binary Coded Digit C. Bit Coded Decimal D. Bit Coded Digit

Ans:– A ,


Ambiguity may be caused by:
Options: syntactic ambiguity,    multiple word meanings,    unclear antecedents,    All of the above

Ans:D ,D


A _____ is a formalized computer information system that can integrate data from various sources to provide the information necessary for management decision making.
Options: prompt,    passwords,    MIS,    Tactical

Ans:C ,C


Which is NOT one of the most common types of SQL CHECK constraints?
Options: System date,    Range checks,    Lists of values,    Comparing one column value to another within the same table

Ans:A ,A


.    Which command displays all the files having the same name but different extensions?
Options: a.    Dir filename.* b.    Dir filename.ext c.    Dir *.sys d.    Dir *.ext

Ans:.b,Correct Answer: a. Dir filename.*


A menu-driven operating system is one which allows you to pick up from the menu of choices it displays on the screen. What is the name given to the images which are used in such image oriented menus?
Options: Icon,    Figure,    Symbol,    option

Ans:A ,A


ISDN uses _____ technology.
Options: only digital,    digital and analog,    only analog,    neither digital nor analog

Ans:A ,A


There are certain packages that allow people to define data items, place these items in particular records, combine the records into designated files and then manipulate and retrieve the stored data. What are they called?
Options: Data storage system,    Database management system (DBMS),    Batch processing system,    Data communication package

Ans:B ,B


. Which of the following is a feature of fifth generation computers?
Options: A) Use of natural language B) artificial intelligence C) bio-chips D) All of above

Ans:D,D


. Charles Babbage is considered the father of modern computers because
Options: A) of his difference engine B) of his analytical engine C) his concept of input, mill and output D) All of above

Ans:C,C


What is the main advantage of magnetic core memory over semiconductor RAM memory?
Options: more compact and smaller,    more economical,    a bit does not have to write after reading,    non volatile

Ans:D,D


An application program interface (API) is which of the following?
Options: The same thing as ODBC.,    Middleware that does not provide access to a database.,    Middleware that provides access to a database.,    The same thing as JDBC.

Ans:C ,C


What layer of OSI determines the interface of the system with the user?
Options: Session,    Data-link,    Application,    Network

Ans:C ,C


Which is the first compiler-level language developed by a team of IBM programmers led by John Backus and unveiled in 1957?
Options: BASIC,    PL/1,    FORTRAN,    APL

Ans:C ,C


Which of the following is not a font style?
Options:  A) Bold, B) Italics, C) Regular, D) Superscript, 

Ans:-D,-D


The working principles of today's computers were provided by an English mathematician
Options: Charles Babbage,    Dr. Hollerith,    Donald Reach,    Ken Reider

Ans:A ,A


Computer scientists are exploring the possibility of culturing bacteria to create living chips which have digital electronic properties. What are these chips called?
Options: bacterial chips,    biochips,    natural chips,    neural chips

Ans:B ,B


. Insert Date, Format Page Number, and Insert AutoText are buttons on the _____ toolbar.
Options: a. Formatting b. Header and Footer c. Standard d. Edit

Ans:– B,– B


Pick the correct choice for the 8088 CPU.
Options: 16 bit word size, 8 bit data path,    8 bit word size, 8 bit data path,    16 bit word size, 16 bit data path,    4 bit word size, 8 bit data path

Ans:A ,A


What VTP mode allows you to change VLAN information on the switch?
Options: Client,    STP,    Server,    Transparent

Ans:C ,C


. Circular division of disks to store and retrieve data are known as

Options: A) tracks B) sectors C) cycles D) rings

Ans:A,A


Semiconductor devices:
Options: are less reliable than electro¬mechanical components,    usually have a very short MTBF (mean time between failure),    have a very short infant mortality period,    All of the above

Ans:C ,C


. A term used to describe interconnected computer configuration is

Options: A) Multiprogramming B) Modulation C) Multiprocessing D) Micro program sequence

Ans:A,A


In which version of DOS. CHKDSK command has been changed to SCANDISK?
Options: a. 5.0 b. 6.2 c. 6.0 d. 6.2

Ans:Correct Answer: d ,Correct Answer: d


Which of the declaration is correct?
Options: int length;,    char int;,    int long;,    float double;

Ans:A ,A


A 8-Mbps token ring has a token holding timer value of 10 msec. What is the longest frame (assume header bits are negligible) that can be sent on this ring?
Options: 8000 B frame,    80,000 B frame,    8 x 105 bit frame,    10,000 B frame

Ans:D ,D


Which is a machine-oriented high-level language for the GEC 4080 series machines.
Options: LOGO,    SNOBOL,    Babbage,    ALGOL

Ans:C ,C


An input device which can read characters directly from an ordinary piece of paper is
Options: OCR,    OMR,    MSI,    POS

Ans:A ,A


. The personnel who deals with the computer and its management put together are called
Options: A) Software B) Human ware C) Firmware D) Hardware

Ans:B,B


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

www.000webhost.com