The minimal set of super key is called


Options: Primary key B. Secondary key C. Candidate key D. Foreign key

Ans:– C ,






More Database Systems Related questions:


A list in alphabetical order
Options: is in descending order,    is in ascending order,    is the result of a sort operation,    both (b) and (c)

Ans:D ,D


Which of the following is true concerning triggers?
Options: You do not create them with SQL.,    They execute against only some applications that access a database.,    They have an event, condition, and action.,    They cannot cascade (cause another trigger to fire).

Ans:C ,C


If a file has read and write permissions for the owner, then the octal representation of the permissions will be
Options: 1,    6,    5,    3

Ans:B ,B


What is the significance of the J and K terminals on the J-K flip-flop?
Options: There is no known significance in their designations.,    The J represents "jump," which is how the Q output reacts whenever the clock goes HIGH and the J input is also HIGH.,    The letters represent the initials of Johnson and King, the co-inventors of the J-K flip-flop.,    All of the other letters of the alphabet are already in use.

Ans:A ,A


What is the i/o address for com1?
Options: 3e8,    3bc,    5f8,    3f8

Ans:D ,D


An MIS can be developed by
Options: a fire department,    a college testing service,    an ocean transportation company,    All of the above

Ans:D ,D


The combination of the top-down and the bottom-up approach may be referred to as an
Options: integrative approach,    interpretive approach,    interactive approach,    both b and c

Ans:A ,A


What is the first thing you could do to check for damage to a printer after receiving it?
Options: Run MSD diagnostics,    Attach it to a PC and print something,    Check the cables,    Unbox it and examine it for physical damage

Ans:D ,D


During the maintenance phase
Options: System requirements are established,    System analysis is carried out,    Programs are tested,    All of the above

Ans:E ,E


. Excel uniquely identifies cells within a worksheet with a cell name
Options: a. Cell names b. Column numbers and row letters c. Column letters and row numbers d. Cell locator coordinates

Ans:– c,– c


Which of the following is not characteristic of a relational database model?
Options: tables,    treelike structure,    complex logical relationships,    records

Ans:B ,B


. Raw facts and figures about any particular topic are
Options: A) Information B) facts C) data D) none of above

Ans:7-C,7-C


. Which command is used to get the current date only?
Options: a. Date b. Time c. Second d. All of the above

Ans:Correct Answer: a ,Correct Answer: a


. Which of the following Data Type is used to store picture in MS Access
Options: a. Picture b. OLE Object c. Memo d. Picture cannot be stored

Ans:– b,– b


Which of the following program is not a utility?
Options: Debugger,    Editor,    Spooler,    All of the above

Ans:C ,C


When operating above its resonant frequency, a parallel RLC circuit has the characteristics of a:
Options: parallel RL circuit,    parallel RC circuit,    parallel RLC circuit operated above its resonant frequency,    purely resistive circuit

Ans:B ,B


A part located in the central processing unit that stores data & information is known as
Options: Core memory,    PROM,    EPROM,    ROM

Ans:A ,A


One of the purchases order system's procedure sets is
Options: automatic purchase order writing,    receiving,    accounts payable,    All of the above

Ans:A ,A


. Which of the following field properties displays a model or pattern for entering data?
Options: a. Field Size b. Format c. Input Mask d. Validation Rule

Ans:6 – c ,6 – c


An input device that is able to interpret pencil marks on paper media is known as
Options: Magnetic disk,    Optical Mark Reader,    Card Puncher,    Magnetic tape

Ans:B ,B


Which of the following is the 1's complement of 10?
Options: 01,    110,    11,    10

Ans:A ,A


Where can you change the vertical alignment?
Options:  A) Formatting toolbar, B) Paragraph dialog box, C) Page Setup dialog box, D) Standard toolbar,

Ans:-C,-C


The net charge of a neutral copper atom is
Options: 0,    +1,    -1,    +4

Ans:B ,B


To sort records in a table
Options: a. Open table, click on the field on which the sorting is to be done, then click Sort button on database toolbar b. Open table, click Sort button on database toolbar, choose field based on which to sort, click OK c. Click the field heading to sort it ascending or descending d. All of above

Ans:ndash; a,ndash; a


. Which of the following disk is fixed disk?
Options: A) Hard Disks B) Flash Disks C) Blu-Ray Disks D) DVDs

Ans:A,A


. If you want to keep track of different editions of a document which features will you use?
Options: a. Editions b. Versions c. Track Change d. All of above

Ans: – B , – B


. Which of the following registers is loaded with the contents of the memory location pointed by the PC?
Options: A) Memory address registers B) Memory data registers C) Instruction register D) Program counter

Ans:C,C


Devices on one network can communicate with devices on another network via a
Options: file server,    utility server,    printer server,    gateway

Ans:D ,D


When entering field name, how many characters you can type in maximum?
Options: a. 60 b. 64 c. 68 d. Any number of character

Ans:ndash; b,ndash; b


The way a particular application views the data from the data base that the application uses is a :
Options: module,    relational model,    schema,    subschema

Ans:D ,D


. ____ is the operating systems File and folder Manager
Options: a. Windows Explorer b. Windows Control Panel c. My Computer d. My Documents

Ans:8 – a ,8 – a


Which of the following are loaded into main memory when the computer is booted?
Options: internal command instructions,    external command instructions,    utility programs,    word processing instructions

Ans:A ,A


What command is used to remove jobs from the print queue?
Options: lpq,    lpr,    lprm,    lpc

Ans:C ,C


An input/output device at which data enters or leaves a computer system is
Options: Keyboard,    Terminal,    Printer,    Plotter

Ans:B ,B


Thrashing
Options: is a natural consequence of virtual memory systems,    can always be avoided by swapping,    always occurs on large computers,    can be caused by poor paging algorithms

Ans:D ,D


Using ODL, you can define which of the following?
Options: Attribute,    Structure,    Operation,    All of the above.

Ans:D ,D


For how many processes which are sharing common data, the Dekker's algorithm implements mutual exclusion?
Options: 1,    2,    3,    4

Ans:B ,B


In SQL, the command(s) is(are) used to create an index for a table or cluster
Options: CREATE INDEX,    MODIFY INDEX,    SET INDEX TO FILE,    All of the above

Ans:A ,A


Which of the following function key activates the speller?
Options:  A) F5, B) F7, C) F9, D) Shift + F7,

Ans:-B,-B


. In the third Generation of computers

Options: A) Distributed data processing first became popular B) An operating system was first developed C) High level procedural language were first used D) Online real time systems first become popular

Ans:B,B


Which bitwise operator is suitable for checking whether a particular bit is on or off?
Options: && operator,    & operator,    || operator,    ! operator

Ans:B ,B


In LISP, the addition 3 + 2 is entered as
Options: 3 + 2,    3 add 2,    3 + 2 =,    (+ 3 2)

Ans:D ,D


If you need to change the typeface of a document, which menu will you choose?
Options:  A) Edit, B) View, C) Format, D) Tools, 

Ans:-C,-C


A processing unit that coordinates networks and data communication is known as
Options: Control unit,    Communications processor,    Register unit,    CPU

Ans:B ,B


An appraisal, of a system's performance after it has been installed, is called system
Options: planning,    review,    maintenance,    batch Processing

Ans:B ,B


Which memory allocation policy allocate the largest hole to the process?
Options: Best-Fit B. Worst-Fit C. First-Fit D. None of them

Ans:– B ,


A logical schema
Options: is the entire database,    is a standard way of organizing information into accessible parts,    describes how data is actually stored on disk,    All of the above

Ans:B ,B


What file contains commands that configure systems devices?
Options: Command.com,    Config.sys,    Autoexec.bat,    Win.ini

Ans:B ,B


SQL can be used to:
Options: create database structures only.,    query database data only.,    modify database data only.,    All of the above can be done by SQL.

Ans:D ,D


. Which command will you use to transfer a specific file from one disk to another disk?
Options: a. Time b. Diskcopy c. Copy d. Rename

Ans:7 – c ,7 – c

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