An operating system is a program or a group of programs that

Options: Helps in checking the spelling of Word B. Maintain the relationship in Database C. Manages the resources of the Computer D. Performs the calculations of cells in Excel

Ans:– C ,

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

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More Operating System Related questions:

. Boot startup process
Options: a. Loads system files to RAM b. Checks the computer connections c. Clean up the computer memory d. Prepare the computer ready

Ans:5 – a ,5 – a

Bringing a page into memory only when it is needed, this mechanism is called
Options:  Deadlock B.  Page Fault C.  Dormant Paging D.  Demand Paging

Ans:– D ,

. Mostly which of the following device is used to carry user files?
Options: A) Floppy Disk B) Hard Disk C) RAM D) CDROM


96. What is the shortcut key for “Font” dialog box?
Options: a. Ctrl + F b. Ctrl + D c. Ctrl + G d. None of the above

Ans:–  B ,–  B

A distributed database can use which of the following strategies?
Options: Totally centralized at one location and accessed by many sites,    Partially or totally replicated across sites,    Partitioned into segments at different sites,    All of the above

Ans:D ,D

Identify which of the following are declarations 1 : extern int x; 2 : float square ( float x ) { ... } 3 : double pow(double, double);
Options: 1,    2,    1 and 3,    3

Ans:C ,C

. The term GIGO is related to which characteristics of computers?
Options: A) Speed B) Automatic C) Accuracy D) Reliability


In which of the following situations might a blind search be acceptable?
Options: real-life situation,    complex game,    small search space,    All of the above

Ans:C ,C

The data model that is produced from reverse engineering is:
Options: a conceptual model.,    an internal model.,    a logical model.,    None of the above is correct.

Ans:D ,D

The CCITT Recommendation X.25 specifies three layers of communications:
Options: application, presentation and session,    Session, transport and network,    physical datalink and network,    datalink, network and transport

Ans:C ,C

SPSS stands for
Options: Statistical Package for Systems Science,    Systems Package for Social Science,    Statistical Package for Sociai Science,    All of the above

Ans:C ,C

The magnetic disks and drums are like recirculating shift registers because
Options: they have about the same storage capacity,    their storage is non volatile,    their access times are about the same,    stored data is available for reading over and over again in the same order.

Ans:D ,D

Which of the following technique is used for encapsulation?
Options: a technique used in best-effort delivery systems to avoid endlessly looping packets.,    a technique used by protocols in which a lower level protocol accepts a message from a higher level protocol and places it in the data portion of the low level frame.,    One of the pieces that results when an IP gateway divides an IP datagram into smaller pieces for transmission across a network that cannot handle the original datagram size,    All of the above

Ans:B ,B

Compression of digital data for efficient storage is
Options: Buffer,    CPU,    Packing,    Field


. How do you rearrange the data in ascending or descending order?
Options: Data, Sort B. Data, Form C. Data, Table D. Data Subtotals

Ans: – A ,

Which of the following is not a basic configuration used in a data communication network?
Options: computer/peripheral-device configuration,    computer-to-computer commu¬nication,    computer to front-end processor communication,    communication through a data switch

Ans:C ,C

What will be the output of the program? #include<stdio.h> int main() { const int x=5; const int *ptrx; ptrx = &x; *ptrx = 10; printf("%d\n", x); return 0; }
Options: 5,    10,    Error,    Garbage value

Ans:C ,C

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

A symbol that modifies an action is known as
Options: Compiler,    Modifier,    Interpreter,    Mod

Ans:B ,B

In comparison to the internal (main) memory, tape or disk memory is
Options: slower and more expensive,    slower and less expensive,    faster and more expensive,    faster and less expensive


Which command is used to delete the directory that is empty?
Options: DEL *.*,    RD,    ERASE,    MD

Ans:B ,B

. The _____ on the right side of the menu bar lets users type free-form questions, such as how do I save, or terms, such as copy, and Word responds by displaying a list of topics related to the word or phrase entered.
Options: a. Type a question for help box b. Question Mark button c. What’s this? command d. Index sheet

Ans: – A , – A

. Which of these is a quick way to copy formatting from a selected cell to two other cells on the same worksheet?
Options: a. Use Ctrl to select all three cells, then click the paste button on the standard toolbar b. Copy the selected cell, then select the other two cells, click style on the Format menu, then click Modify c. Click format painter on the Formatting toolbar twice then click in each cell you want to copy the formatting to d. All of above

Ans:– c,– c

Rounding errors can occur
Options: a. When you use multiplication, division, or exponentiation in a formula b. When you use addition and subtraction in a formula c. Because excel uses hidden decimal places in computation d. When you show the results of formulas with different decimal places that the calculated results

Ans:#8211; a,#8211; a

For a memory system, the cycle time is
Options: same as the access time,    longer than the access time,    shorter than the access time,    submultiple of the access time

Ans:B ,B

Which of the following device is used to connect two systems, especially if the systems use different protocols?
Options: hub,    bridge,    gateway,    repeater

Ans:C ,C

The "end-effector" of a robot:
Options: can be an actual tool,    is the robot "hand",    may have a gripping action,    All of the above

Ans:D ,D

_____ write computer programs that perform jobs specified by the user.
Options: Programmer,    Data entry operator,    System Analyst,    Computer operator

Ans:A ,A

. To copy the hidden system files of DOS to another disk you can use the command
Options: a. Copy b. Ren c. Sys d. Diskcopy

Ans:Correct Answer: c ,Correct Answer: c

. Which command is used to copy the file myfile.doc from floppy disk to hard disk?
Options: a. Copy a:myfile.doc c: b. Copy c:myfile.doc a: c. Copy a: c:myfile.doc d. None of the above

Ans:5 – a ,5 – a

Which of the following transmission systems provides the highest data rate to an individual device
Options: Computer bus,    Telephone lines,    Voice band modem,    leased lines

Ans:A ,A

. How many numbers could ENIAC store in its internal memory
Options: A) 100 B) 20 C) 80 D) 40


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

Ans:1 – a ,1 – a

Which of the following commands is used to get directory one level up?
Options: cd,    cd ..,    cd/,    chdir

Ans:B ,B

A database language concerned with the definition of the whole database structure and schema is ________
Options: a. DCL b. DML c. DDL d. All of above

Ans:ndash; c,ndash; c

. An operating system is a program or a group of programs that
Options: a. Helps in checking the spelling of Word b. Maintain the relationship in Database c. Manages the resources of the Computer d. Performs the calculations of cells in Excel

Ans:2 – c ,2 – c

. Which of the following is correct regarding the Background of slides
Options: a. Background color of slides can be change b. Picture can be set as Slide Background c. Texture can be set as Slide Background d. All of the Above

Ans:1 – D ,1 – D

. Regarding data, computers are very good at
Options: A) store B) Processing C) retrieve D) All of above


. In a table to insert User’s Voice, Data field should be
Options: a. OLE Object b. SoundField c. VoiceField d. Memo

Ans:– a,– a

A communication network which is used by large organizations over regional, national or global area is called
Options: LAN,    WAN,    MAN,    Intranet

Ans:B ,B

Which of the following registers hold the information before it goes to the decoder
Options: control register,    data register,    accumulator,    address register


Which of the following chips can be reprogrammed with special electric pulses?
Options: EPROM,    PROM,    ROM,    EEPROM

Ans:D ,D

4. …….transforms one interface into another interface
Options: a. Program b. Software c. Data d. None

Ans:Correct Answer: b,Correct Answer: b

. Which of the following generation computers had expensive operation cost?
Options: A) First B) Second C) Third D) Fourth


. Excel displays the current cell address in the ……….
Options: a. Formula bar b. Status Bar c. Name Box d. Title Bar

Ans:– c,– c

A basic S-R flip-flop can be constructed by cross-coupling which basic logic gates?
Options: AND or OR gates,    XOR or XNOR gates,    NOR or NAND gates,    AND or NOR gates

Ans:C ,C

Which of the following is a voiceband channel?
Options: Telephone line,    Telegraph line,    Coaxial cable,    Microwave systems

Ans:A ,A

In data-flow diagrams, an originator or receiver of the data is usually designated by
Options: a circle,    an arrow,    a square box,    a rectangle

Ans:C ,C

. Who built the world’s first electronic calculator using telephone relays, light bulbs and batteries?
Options: A) Claude Shannon B) Konrard Zues C) George Stibits D) Howard H. Aiken


. Hard disk is coated in both side with
Options: A) Magnetic metallic oxide B) Optical metallic oxide C) Carbon layer D) All of the above