The Primary key must be


Options: Non Null B. Unique C. Option A or B D. Option A and B

Ans:– D ,






More Database Systems Related questions:


. The octal equivalence of 111010 is
Options: A) 81 B) 72 C) 71 D) None of above

Ans:6-B,6-B


Which CAD display configurability allows work without any host support?
Options: Highly intelligent,    Medium intelligence,    Low intelligence,    One with no secondary storage capacity.

Ans:A ,A


Operations Research came into being due to:
Options: medical reasons,    military reasons,    educational reasons,    to improve transportation

Ans:B ,B


How can you apply exactly the same formatting you did to another text?
Options: a. Copy the text and paste in new location. Then type the new text again. b. Copy the text and click on Paste Special tool on new place c. Select the text then click on Format Painter and select the new text d. All of above

Ans:– C,– C


A sequence of instructions, in a computer language, to get the desired result, is known as
Options: Algorithm,    Decision Table,    Program,    All of the above

Ans:C ,C


In which of the following, each data item contains at most 2 points
Options: List structure,    LISP,    List sorting,    List head

Ans:B ,B


Molecule is
Options: The smallest particle of a substance that retains the properties of that substance,    A atom that has a shortage of electrons in its outer orbit,    A atom that has an excessive number of electrons in its outer orbit,    A atom that flows whenever there is an imbalance of electrical charges between two points

Ans:A ,A


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


In LISP, the function (minusp (-20 4 8 8 1) returns
Options: T,    F,    NIL,    -20

Ans:A ,A


. Which Form tool creates a new form that show both a form and datasheet views?
Options: a. Form b. Form Wizard c. Multiple Item Form d. Split Form

Ans:1 – d ,1 – d


. The first electronic general purpose digital computer built by Eckert and Mauchly called ENIAC did not work on the stored program concept. How many numbers could it store in its internal memory?
Options: A) 100 B) 20 C) 40 D) 80

Ans:B,B


. Press the enter key in all of the following circumstances except _____.
Options: a. to insert a blank line into a document b. when the insertion point reaches the right margin c. to begin a new paragraph d. in response to certain Word commands

Ans: – B , – B


During what phase, the requirement analysis is performed?
Options: system design phase,    system development phase,    system analysis phase,    system investigation phase

Ans:C ,C


What is the minimum number of wires needed to send data over a serial communication link layer?
Options: 1,    2,    4,    6

Ans:B ,B


What will be the output if you format the cell containing 5436.8 as ‘#,##0.00′?
Options: a. 5430 b. 5436.8 c. 5436.80 d. 6.8

Ans:B,– b


A composite key is
Options: a. Required when a table does not have any unique fields in it b. The primary key with AutoNumber as the field type c. Made up of two or more fields to uniquely identify records d. Is a foreign key that uniquely identifies records

Ans:ndash; c,ndash; c


Which is part of a computer system, enables human operators to communicate with the computer.
Options: Console,    Keyboard,    Printer,    CPU

Ans:A ,A


Which of the following communications modes support two-way traffic but in only one direction of a time?
Options: simplex,    half-duplex,    three-quarters duplex,    full-of the above

Ans:B ,B


Which of the following is a type of systems software used on microcomputers?
Options: MS-DOS,    PC-DOS,    Unix,    All of the above

Ans:D ,D


In which year was UK's premier computing event called "The Which Computer" started?
Options: 1980,    1985,    1986,    1987

Ans:A,A


If you select Insert >> Picture >> From File
Options: a. You can insert pictures and clipart b. You can insert clipart only c. you can insert pictures only d. None of above

Ans: – C , – C


What will be the output of the program ? #include<stdio.h> int main() { enum status {pass, fail, absent}; enum status stud1, stud2, stud3; stud1 = pass; stud2 = absent; stud3 = fail; printf("%d %d %d\n", stud1, stud2, stud3); return 0; }
Options: 0, 1, 2,    1, 2, 3,    0, 2, 1,    1, 3, 2

Ans:C ,C


An instruction in a programming language that is replaced by a sequence of instructions prior to assembly or compiling is known as
Options: procedure name,    macro,    label,    literal

Ans:B ,B


Which of the following button will allow you to add, delete, or change records in your Data Source?
Options:  A) ‘Data Source’ button, B) ‘Edit’ button, C) ‘Edit Data Source’ button, D) ‘Data editing’ button,

Ans:-C,-C


. MS-Word automatically moves the text to the next line when it reaches the right edge of the screen and is called?
Options: a. Carriage Return b. Enter c. Word Wrap d. None of the above

Ans: –  C , –  C


Dust in a computer actually increases the size of the magnetic fields inside it. This is not good, so you must occasionaiy dust, I trust. What
Options: reverse vacuum,    any small vacuum device,    blow real hard on the system board,    non-static compressed air

Ans:non-static compressed air ,D


. Which of the following operating system do you choose to implement a client server network?
Options: a. MS DOS b. Windows c. Windows 98 d. Windows 2000

Ans: d, d


The first computer used to store a program
Options: EDSAC,    ENIAC,    EDVAC,    ACE

Ans:A ,A


If a variable is a pointer to a structure, then which of the following operator is used to access data members of the structure through the pointer variable?
Options: .,    &,    *,    ->

Ans:D ,D


Which of the following data structure is not linear data structure?
Options: a. Arrays b. Linked lists c. Both of above d. None of above  

Ans:d,d


. Operating system is like a
Options: a. Government b. Police c. Parliament d. All of above

Ans:3 – a ,3 – a


A 6xx indicates a problem with the:
Options: floppy drive,    hard drive,    keyboard,    CD ROM

Ans:A ,A


In which year were chips used inside the computer for the first time?
Options: 1964,    1975,    1977,    1981

Ans:B,B


What is the name of the computer program that simulates the thought processes of human beings?
Options: Human logic,    Expert reason,    Expert system,    Personal information

Ans:C ,C


A human cannot feel a static discharge as high as _____ volts.
Options: 200,    2000,    10000,    50000

Ans:A ,A


Which of the following holds data and processing instructions temporarily until the CPU needs it?
Options: ROM,    control unit,    main memory,    coprocessor chips

Ans:C ,C


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

Ans:– B ,


You can select a single range of cells by
Options: a. Clicking the upper-left cell in a group of cells and then pressing the Shift key while clicking the lower right cell in a group of cells b. Pressing the Ctrl key while dragging over the desired cells c. Pressing the Shift key and an arrow key d. Dragging over the desired cells

Ans:#8211; d,#8211; d


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


. 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


Backing storage is so named because it
Options: is always kept at the back of the CP.U.,    is slow and backward,    backs up the computer's main memory,    lags behind the main memory

Ans:C,C


. Which data type is better to use for storing the price of an item?
Options: a. Text b. AutoNumber c. Number d. Currency

Ans:– d,– d


To remove duplicate rows from the results of an SQL SELECT statement, the ________ qualifier specified must be included.
Options: ONLY,    UNIQUE,    DISTINCT,    SINGLE

Ans:C ,C


Most of the time, modification anomalies are serious enough that tables should be normalized into:
Options: 1NF.,    2NF.,    3NF.,    BCNF.

Ans:D ,D


The first firm to mass-market a microcomputer as a personal computer was
Options: IBM,    Sperry Univac,    Radio Shack,    Data General Corporation

Ans:C,C


Why are vacuum tubes also called valves?
Options: A) Because they can amplify the weak signals and make them strong B) Because they can stop or allow the flow of current C) Both of above D) None of above

Ans:-B,-B


. Which of the following features should you use when typing in the notes text box?
Options: a. Slide shows b. Insert c. Slide master d. Zoom

Ans:4 – D ,4 – D


. We can remove a relationship defined between two tables by
Options: a. From edit menu choose delete relationship b. Select the relationship line and press delete c. Choose delete option from relationship menu d. All of above

Ans:4 – b ,4 – b


How many times "IndiaBIX" is get printed? #include<stdio.h> int main() { int x; for(x=-1; x<=10; x++) { if(x < 5) continue; else break; printf("IndiaBIX"); } return 0; }
Options: Infinite times,    11 times,    0 times,    10 times

Ans:C ,C


After trying to unload a TSR, you get an error message saying that other TSRs were loaded after the one you tried to remove. Which of the following commands could you use to see the current load order?
Options: MEM /P,    MEMMAKER,    MEM /C,    SYS:

Ans:D ,D

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