. A command to remove a relation from an SQL database


Options: Delete table <table name> B. Drop table <table name> C. Erase table <table name> D. Alter table <table name>

Ans: – B ,


Description: mcqquestions

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

Hits Today: 15432 | 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 Database Systems Related questions:


Cisco's Unified Wireless Solution provides a mesh solution. What devices do you absolutely need to purchase to run a Cisco solution? WCS Controller Access point Bridge
Options: 1 and 2,    2 and 3,    1 and 4 only,    4 only

Ans:B ,B


The organization and interconnection of the various components of a computer system is
Options: Architecture,    Networks,    Graphics,    Designing

Ans:A,(Aanswer


.   You can edit an embedded organization chart object by
Options: a. Clicking the edit object b. Double clicking the organization chart object c. Right clicking the chart object, then clicking edit MS-Organization Chart object d. B and c

Ans:0 – D ,0 – D


What is the maximum distance running the lowest data rate for 802.11b?
Options: About 100 feet,    About 175 feet,    About 300 feet,    About 350 feet

Ans:D ,D


A pen shaped device which can sense light, and is used to point at spots on a video screen.
Options: Mouse,    Light pen,    Joystick,    Plotter

Ans:B ,B


The register or main memory location which contains the effective address of the operand is known as
Options: pointer,    indexed register,    special location,    scratch pad

Ans:A ,A


There are several careers within data processing operations, including data-entry operator.
Options: Computer operator,    Programmer,    System Analyst,    Key-punch operator

Ans:A ,A


In a one-to-many relationship, the entity that is on the many side of the relationship is called a(n) ________ entity.
Options: parent,    child,    instance,    subtype

Ans:B ,B


Name the two persons who were the first to develop a model of the microprocessor chip.
Options: Marcian Ted Hoff,    Victor Poor,    Harry pyle,    Both (b) and (c)

Ans:D ,D


Semaphores
Options: synchronize critical resources to prevent deadlock,    synchronize critical resources to prevent contention,    are used to do I/O,    are used for memory management

Ans:A ,A


. If you press …., the cell accepts your typing as its contents.
Options: a. Enter b. Ctrl + Enter c. TAB d. Insert

Ans:– a,– a


. A disadvantage of the laser printer is
Options: A) It is quieter than an impact printer B) It is very slow C) The output is of a lower quality D) None of the above

Ans:7-D,7-D


. Programs are executed on the basis of a priority number in a
Options: A) Batch processing system B) Multiprogramming C) Time sharing D) None of these

Ans:B,B


. First operating system was developed in
Options: a. 1958 b. 1976 c. 1950 d. 1946

Ans:5 – c ,5 – c


. Which of the following database object produces the final result to present?
Options: a. Forms b. Reports c. Queries d. Tables

Ans:5 – b ,5 – b


21. Which command is used to undelete delete a bunch of files with extension doc that you have just deleted
Options: a. Undelete b. Undelete *.doc c. Undelete/all d. All of the above

Ans:Correct Answer: b ,Correct Answer: b


When was the X Window System born?
Options: 1984,    1989,    1988,    1990

Ans:A,A


Which of the following elements can be used with a TI510 FC?
Options: Drum timer,    Metronome,    Cymbal timer,    Flashing light

Ans:A ,A


What is your first action when windows reports that your hard drive is developing bad sectors?
Options: replace the hard drive,    run secclean from dos,    run defrag on the hard drive,    run scandisk with the "thorough" option

Ans:D ,D


. For what Antikyathera was used?
Options: A) For counting B) For Calculating tax collection C) For calculating astronomical positions D) For calculating firing weapons

Ans:9-C,9-C


Which of the following printer can be classified as a page-at-a-time printer?
Options: Laser printer,    Dot-matrix printer,    Thermal printer,    Inkjet printer

Ans:A ,A


. List Box and Text box
Options: a.  Are some other than that in a list box the bullets are enabled b.  Are different. List boxes are used to present lists and can’t be created with text boxes. c.  Both of above d.  None of above

Ans:1 – A ,1 – A


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

Ans:C,C


Top Management is more interested in
Options: day-to-day operations,    strategic decisions,    tactical decision,    both b and c

Ans:D ,D


You accidentally erased a record in the sheet. What command can be used to restore it immediately?
Options: Insert B. Copy C. Undo D. Replace

Ans:– C ,


The two major categories of software are: application software and
Options: system software,    UNIX software,    high-level languages,    CAD software

Ans:A ,A


When the Language bar is _____, it means that you do not see it on the screen but it will be displayed the next time you start your computer.
Options: a. restored b. hidden c. minimized d. closed

Ans:– B,– B


Upper Memory blocks are located where?
Options: Conventional Memory,    Extended Memory,    Expanded memory,    Reserved Memory

Ans:D ,D


Where are silicon chips manufactured in India?
Options: Chandigarh,    Punjab,    UP.,    Tamil Nadu

Ans:A ,A


The first electronic digital computer contained?
Options: Electronic valves,    Vacuum tubes,    Transistors,    Semiconductor memory

Ans:B,B


The first two steps in the ____ process are to establish goals or standards, and then measure actual performance.
Options: expert,    centers,    control,    MIS

Ans:C ,C


. Networking such as LAN, MAN started from

Options: A) First generation B) Second generation C) Third generation D) Fourth generation

Ans:D,D


Structured data may include which of the following?
Options: Photo image,    Video clip,    Dates,    None of the above.

Ans:C ,C


Following is not a database model
Options: a. network database model b. relational database model c. Object Oriented database model d. None

Ans:ndash; d,ndash; d


Subschema can be used to
Options: create very different, personalized views of the same data,    present information in different formats,    hide sensitive information by omitting fields from the sub¬schema's description,    All of the above

Ans:D ,D


. What is the correct way to refer the cell A10 on sheet3 from sheet1?
Options: sheet3!A10 B. sheet1!A10 C. Sheet3.A10 D. A10

Ans: – A ,


Which of the following items would require you to comply with EPA disposal guidelines?
Options: Keyboard,    System board,    Power supply,    Battery

Ans:D ,D


Page stealing
Options: is a sign of an efficient system,    is taking page frames from other working sets,    should be the tuning goal,    is taking larger disk spaces for pages paged out

Ans:B ,B


A word processor would most likely be used to do
Options: a. keep an account of money spent b. do a computer search in media center c. maintain an inventory d. type a biography

Ans:– D,D


To enable OSPFv3, which of the following would you use?
Options: Router1(config-if)# ipv6 ospf 10 area 0.0.0.0,    Router1(config-if)# ipv6 router rip 1,    Router1(config)# ipv6 router eigrp 10,    Router1(config-rtr)# no shutdown

Ans:A ,A


Each answer below shows example data from a table. Which answer is an example of the missing values problem?
Options: Three columns have the values 534-2435, 534-7867, and 546-2356 in the same row.,    Three rows have the values Brown Small Chair, Small Chair Brown, and Small Brown Chair in the same column.,    Three rows have the values Brown, NULL, and Blue in the same column.,    One row has the value "He is interested in a Silver Porsche from the years 1978-1988" in a column.

Ans:C ,C


. While creating relationship, when you drag a field of a field to drop into another table the mouse pointer changes into
Options: a. A doctor’s sign b. Thin + sign c. Outline rectangle d. None of above

Ans:9 – c ,9 – c


Which of the following is not a device used in data communication?
Options: modem,    multiplexer,    statistical multiplexer,    front-end processor

Ans:E ,E


Advantages of robots include:
Options: increased productivity,    ability to withstand hazardous environments,    good return on investment and better company image,    All of the above

Ans:D ,D


Which is used to provide the sight information to the right person at the right time for proper decision making?
Options: DBMS,    MIS,    ISO,    PSO

Ans:B ,B


A compound key
Options: is made up a several pieces of information,    uniquely identifies an item in a list,    both (a) and (b),    is a combination of each unique key

Ans:C ,C


If, in a computer, 16 bits are used to specify addresses in a RAM, the number of addresses will be
Options: 216,    65,536,    64K,    Any of the above

Ans:D ,D


A path linking 2 hardware or telecommunication units down which data and control signals can be transmitted is
Options: Modulation,    Demodulation,    Channel,    Signalling

Ans:C ,C


what is full form of ABC
Options:

Ans:Atanasoff-Berry Computer,


In what module, multiple instances of execution will yield the same result even if one instancy has not terminated before the next one has begun?
Options: non-reusable module,    serially reusable,    reenterable module,    recursive module

Ans:C ,C

www.000webhost.com