The operating system manages

Options: Memory B. Processes C. Disks and I/O devices D. all of the above

Ans:– D ,

Description: mcqquestions

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

Hits Today: 13216 | 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 Operating System Related questions:

To verify that the note text is positioned correctly on the page, switch to _____ view or display the document in print preview.
Options: a. normal b. print layout c. page layout d. page edit

Ans:– B,– B

Which command is used to remove a directory?
Options: rd,    rmdir,    dldir,    rdir

Ans:B ,B

The computer code for the interchange of information between terminals is
Options: ASCII,    BCD,    EBCDIC,    All of the above

Ans:A ,A

Two main measures for the efficiency of an algorithm are
Options: a. Processor and memory b. Complexity and capacity c. Time and space d. Data and space  


Point out the error in the program #include<stdio.h> int f(int a) { a > 20? return(10): return(20); } int main() { int f(int); int b; b = f(20); printf("%d\n", b); return 0; }
Options: Error: Prototype declaration,    No error,    Error: return statement cannot be used with conditional operators,    None of above

Ans:C ,C

 This is the menu command used to apply a design template in PowerPoint.
Options:  Tools -> Slide Design B.  Format -> Slide Design C.  Insert  -> Slide Design D.  Insert -> Slide Design

Ans:– B ,

The output of a 2 input OR gate is 0 only when its
Options: both inputs are 0,    either input is 1,    both inputs are 1,    either input is 0

Ans:A ,A

A channel for communicating across a boundary between two or more sub¬systems is known as
Options: interface,    actigram,    walk through,    data path

Ans:B ,B

. Which windows features can be accessed from the start menu?
Options: a. Help b. Windows Explorer c. Microsoft Network d. All of above

Ans:5 – d ,5 – d

“Ctrl + End” is used to
Options: a. Moves the cursor to the end of Line b. Moves the cursor to the end of Document c. Moves the cursor to the end of Paragraph d. None of the Above

Ans:–  B,–  B

Which of the following would be a good starting point for troubleshooting if your router is not translating?
Options: Reboot.,    Call Cisco.,    Check your interfaces for the correct configuration.,    Run the debug all command.

Ans:C ,C

In MS-DOS 5.0, which is the number that acts as a code to uniquely identify the software product?
Options: MS,    DOS,    MS DOS,    5.0

Ans:D ,D

. When was MS Windows operating system introduced?
Options: a. 1975 b. 1985 c. 1995 d. 2000

Ans:4 – b ,4 – b

. …. are specially designed computer chips that reside inside other devices, such as your car or electric thermostat
Options: a. Server b. Embedded computer c. Robotic computer d. Mainframes

Ans:2 – b ,2 – b

After you have verified that TCP/IP is installed correctly, what is the next step in verifying the TCP/IP configuration?
Options: Ping the broadcast address,    Ping the Microsoft Web site,    Ping a distant router.,    Ping the address of the local host

Ans:D ,D

What will be the output of the program (myprog.c) given below if it is executed from the command line? cmd> myprog one two three /* myprog.c */ #include<stdio.h> int main(int argc, char *argv[]) { int i; for(i=1; i<argc; i++) printf("%c", argv[i][0]); return 0; }
Options: oot,    ott,    nwh,    eoe

Ans:B ,B

The first microprocessors produced by Intel Corpn. and Texas Instruments were used primarily to control small
Options: microwave ovens,    washing machines,    calculators,    personal computers


. You want to set such that when you type Baishakh and drag the fill handle, Excel should produce Jestha, Aashadh and so on. What will you set to effect that?
Options: a.  Custom List b.  Auto Fill Options c.  Fill Across Worksheet d.  Fill Series

Ans:– a,– a

When determining the efficiency of algorithm, the space factor is measured by
Options: A)Counting the maximum memory needed by the algorithm b.Counting the minimum memory needed by the algorithm c.Counting the average memory needed by the algorithm d.Counting the maximum disk space needed by the algorithm

Ans:A,Counting the maximum memory needed by the

Which option will be used with touch command to change the access time?
Options: -a,    -b,    -t,    -h

Ans:A ,A

Which of the following commands is used to display the filenames in multiple columns?
Options: ls,    ls -1,    ls -x,    lc

Ans:C ,C

. Which statement is valid?

Options: A) 1KB = 1024 bytes B) 1 MB=2048 bytes C) 1 MB = 1000 kilobytes D) 1 KB = 1000 bytes


2. How many ways you can save a document?
Options: a. 3 b. 4 c. 5 d. 6

Ans:#8211; A ,#8211; A

CUsually, in MSDOS, the primary hard disk drives has the drive letter ____
Options: Options:A B. B C. C D. D


Which is true when you insert an excel worksheet into a word document?
Options: word is the destination document B. excel is the destination document C. the worksheet is the destination document D. the document is the source document

Ans: – A ,

A transaction for which all committed changes are permanent is called:
Options: atomic.,    consistent.,    isolated.,    durable.

Ans:D ,D

A financial modeling package for a PC is similar to a spreadsheet package, but it can handle larger data files than a spreadsheet, and it has a built-in _____ seeking function.
Options: aim,    target,    goal,    plan

Ans:C ,C

What will be the output of the program in Turbo C? #include<stdio.h> int main() { char near *near *ptr1; char near *far *ptr2; char near *huge *ptr3; printf("%d, %d, %d\n", sizeof(ptr1), sizeof(ptr2), sizeof(ptr3)); return 0; }
Options: 4, 4, 8,    4, 4, 4,    2, 4, 8,    2, 4, 4

Ans:D ,D

. Identify the true statement
Options: A) Computers are 100% accurate but it can suffer from GIGO B) Computers are reliable because they use electronic component which have very low failure rate C) Computer is never tired and does not suffer from boredom D) All of above


Which of these toolbars allows changing of Fonts and their sizes?
Options: Standard B. Formatting C. Print Preview D. None of these

Ans:– B ,

A device designed to read information encoded into a small plastic card is
Options: Magnetic tape,    Badge reader,    Tape puncher,    Card puncher

Ans:B ,B

The cheapest modems can transmit
Options: 300 bits per second,    1,200 bits per second,    2,400 bits per second,    4,800 bits per second

Ans:A ,A

.   on which part of the chart are the values entered in a data sheet displayed?
Options: a. The title area b. The legend c. The y-axis d. The x-axis

Ans:8 – C ,8 – C

. The Table _______________ Wizard analyzes a database and recommends changes for normalization.
Options: a. Analyzer b. Documenter c. Cleanup d. Normalization

Ans:8 – a ,8 – a

. When increasing the Control Padding, space is added where?
Options: a. Between the content of the controls and the outside edge of then controls b. Between all controls c. Between the control and the Form’s edge d. Between controls and gridlines

Ans:4 – b ,4 – b

Which of the following is not a practical data-processing approach?
Options: batch-sequential,    batch-direct,    immediate-sequential,    immediate-direct

Ans:C ,C

Which would you choose to move selected text from one place to another?
Options: Press Ctrl+S B. Click File, Save C. Click Tools, Options, Save D. Click File, Save As

Ans:C ,

What is modified when changing the system start-up boot sequence?
Options: BIOS/CMOS,    CONFIG.SYS,    autoexec.bat,    COMMAND.COM

Ans:A ,A

The bars in a bar chart are represented by the
Options: rectangles in a network diagram,    arrows in a network diagram,    triangles in a network diagram,    All of the above

Ans:B ,B

Time proportioning control:
Options: can be used on a PM550 programmable process controller,    is less efficient than normal PID control,    cannot use a TM990 micro¬computer,    a and b above.

Ans:A ,A

to view headers and footers, you must switch to
Options: normal view B. print layout view C. print preview mode D. both B and C

Ans:– D ,

The ALU and control unit of most of the microcomputers are combined and manufactured on a single silicon chip. What is it called?
Options: Monochip,    Microprocessor,    ALU,    Control Unit

Ans:B ,B

. This database has only one table.
Options: a. relational b. large c. flat-file d. DBMS

Ans:8 – c ,8 – c

. You can open the consolidate dialog box byt choosing Consolidate from the ….. menu.
Options: a. Insert b. Format c. Tools d. Data

Ans:– d,– d

What is the phase shift between total current and voltage in the circuit of a 100 ohm resistor connected in parallel with a capacitor that has a reactance of 100 ohm
Options: 180 degree,    30 degree,    45 degree,    75 degree

Ans:C ,C

Transistorized computer circuits were introduced in the
Options: first generation,    second generation,    thir4 generation,    fourth generation

Ans:B ,B

Which of the following medium access control technique is used for bus/tree?
Options: token ring,    token bus,    CSMA,    MAC

Ans:B ,B

The most important advantage of a video disk is
Options: Compactness,    Potential capacity,    Durability,    Cost effectiveness

Ans:B ,B

In a database table, the category of information is called ____________
Options: a. tuple b. field c. record d. All of above

Ans:dash; b,dash; b

Which of the following services use TCP? DHCP SMTP HTTP TFTP FTP
Options: 1 and 2,    2, 3 and 5,    1, 2 and 4,    1, 3 and 4

Ans:B ,B