Who proposed the relational model?


Options: Bill Gates B. E.F. Codd C. Herman Hollerith D. Charles Babbage

Ans:– B ,






More Database Systems Related questions:


If there are multiple recycle bin for a hard disk
Options: a. you can setdifferent size for each recycle bin b. you can choose which recycle bin to use to store your deleted files c. You can make any one of them default recycle bin d. None of above

Ans:a,a


    Which of the following extensions suggest that the file is a backup copy
Options: a.    Bak b.    Bas c.    Com d.    Txt

Ans:.a,Correct Answer: a. Bak


Which of the following command is used to create a Linux installation boot floppy?
Options: mkboot disk,    bootfp disk,    ww and rawwrite,    dd and rawrite

Ans:D ,D


As compared to diskettes, the hard disks are
Options: more expensive,    more portable,    less rigid,    slowly accessed

Ans:A ,A


The relational model uses some unfamiliar terminology. A tuple is equivalent to a:
Options: record,    field,    file,    data base

Ans:A ,A


What is the first stage in software development?
Options: Specification and design B. Testing C. System Analysis D. Maintenance

Ans:– C ,


Does there any function exist to convert the int or float to a string?
Options: Yes,    No,    ,    

Ans:A ,A


Which of the following is true when describing a global unicast address?
Options: Packets addressed to a unicast address are delivered to a single interface.,    These are your typical publicly routable addresses, just like a regular publicly routable address in IPv4.,    These are like private addresses in IPv4 in that they are not meant to be routed.,    These addresses are meant for nonrouting purposes, but they are almost globally unique so it is unlikely they will have an address overlap.

Ans:B ,B


A foreign key is which of the following?
Options: Any attribute,    The same thing as a primary key,    An attribute that serves as the primary key of another relation,    An attribute that serves no purpose

Ans:C ,C


. Which of the following function will use to find the highest number in a series of number?
Options: a. MAX(B1:B3) b. MAXIMUM (B1:B3) c. HIGH (B1:B3) d. HIGHEST(B1:B3)

Ans:– a,– a


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


Shortcut Notation for groups of four Binary Digits is called ____________ Number System.
Options: A. Unicode B. Decimal C. Binary D. Hexadecimal

Ans:D,


In top down analyis and design
Options: each succeeding phase is more detailed than the phase before it,    each succeeding phase is as detailed as the phase before it.,    each succeeding phase is less detailed than the phase before it,    aLL of the above

Ans:A ,A


. Which of the following statement is true?
Options: a. Foreign key fields don’t allow duplicate values b. In primary key field you can enter duplicate value c. In an indexed field you may or may not enter duplicate value depending upon setting d. All statements are true

Ans:3 – c ,3 – c


. The box on …. that allows you to choose where to go and is located below the standard toolbar
Options: a. System menu b. Address bar c. Menu bar d. None of these

Ans:7 – b ,7 – b


What are the different types of real data type in C ?
Options: float, double,    short int, double, long int,    float, double, long double,    double, long int, float

Ans:C ,C


In LISP, the function assigns the symbol x to y is
Options: (setq y x),    (set y = 'x'),    (setq y = 'x'),    (setq y 'x')

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 friday tuesday sunday /* myprog.c */ #include<stdio.h> int main(int argc, char *argv[]) { printf("%c", *++argv[1]); return 0; }
Options: r,    f,    m,    y

Ans:A ,A


. Which file is transferred when computer is start up?
Options: a. Document b. Program files c. Operating system d. System files

Ans:8 – d ,8 – d


Which table is a permanent databases that has an entry for each terminal symbol?
Options: Terminal table,    Literal table,    Identifier table,    Reductions

Ans:A ,A


Multiplicity is the same as what concept for an ERD?
Options: Relationship,    Attribute,    Entity,    Cardinality

Ans:D ,D


. The BIOS is the abbreviation of ________.
Options: A) Basic Input Output System B) Best Input Output System C) Basic Input Output Symbol D) Base Input Output System

Ans:A,A


The computer program language which is widely used in computer science and engineering and also in business is
Options: COBOL,    FORTRAN,    PASCAL,    LISP

Ans:C,C


. Microsoft Excel is a powerful………..
Options: a. Word processing package b. Spreadsheet package c. Communication S/W Package d. DBMS package

Ans:– b,– b


Why does the data communication industry use the layered OSI reference model? It divides the network communication process into smaller and simpler components, thus aiding component development, design, and troubleshooting. It enables equipment from different vendors to use the same electronic components, thus saving research and development funds. It supports the evolution of multiple competing standards and thus provides business opportunities for equipment manufacturers. It encourages industry standardization by defining what functions occur at each layer of the model.
Options: 1 only,    1 and 4,    2 and 3,    3 only

Ans:B ,B


What is the name of the memory card which is conceptually related to the smart card but is similar to the video disk?
Options: Laser card,    Master card,    Visa,    Optical card

Ans:A ,A


SQL*Plus will finish the statement and execute it when the user types in this:
Options: A left slash ( \ ) followed by [Enter].,    A colon ( : ) followed by [Enter].,    A semicolon ( ; ) followed by [Enter].,    A period ( . ) followed by [Enter].

Ans:C ,C


The latest time that the event can be delayed without delaying the completion of the entire project in PERT chart is:
Options: earliest allowable time,    latest allowable time,    earliest pass,    latest pass

Ans:B ,B


. What is the shortcut key to start presentation from current slide?
Options: a. F5 b. Alt + F5 c. Ctrl + F5 d. Shift + F5

Ans:0 – D ,0 – D


You are about to install a second IDE hard drive in a PC that has only one IDE adapter. Your first hard drive will still be the boot drive. How should the second drive be configured?
Options: as a master,    as a secondary,    as a slave,    as a primary

Ans:C ,C


The most common security failure is
Options: carelessness by users,    depending on passwords,    too much emphasis on preventing physical access,    insufficient technology used to prevent breaches

Ans:A ,A


The last address of IP address represents
Options: Unicast address B. Network address C. Broadcast address D. None of above

Ans:– C ,


. A(n) _______________ query locates data from one or more tables.
Options: a. select b. summary c. parameter d. action

Ans:0 – a ,0 – a


Which two files are used during operation of the DBMS?
Options: query language and utilities,    data manipulation language and query language,    data dictionary and transaction log,    data dictionary and query language

Ans:C ,C


. Cascade delete option
Options: a. Is used to delete all the records of all tables in a database b. Will repeat the recent delete operation to all the records of current table c. Is available in edit relatiionship dialog box which makes sure that all the related records will be deleted automatically whn the record from parent table is deleted d. None of above

Ans:2 – c ,2 – c


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 ,


76. How do you close a word document without closing Word window?
Options: a. Click on the Close button on the title bar b. Click on Xminimize button on the title bar c. Click on the Close command on Office menu d. Click Exit on the File menu

Ans:– C ,– C


A common use of computer in office is for
Options: Distributed,    Word processing,    Data,    All of the above

Ans:B ,B


. when you work with large worksheets, you may need to
Options: a. size the worksheet to fit on the specific number of pages b. add and remove page breaks c. specify only certain print areas d. all of above

Ans:– d,– d


The _____ is a business-oriented data-processing association which publishes a monthly journal, Data Management.
Options: DPMA,    CDP,    CISA,    ACM

Ans:A ,A


A NAND gate has:
Options: LOW inputs and a LOW output,    HIGH inputs and a HIGH output,    LOW inputs and a HIGH output,    None of the these

Ans:C ,C


. EBCDIC can code up to how many different characters?
Options: A) 256 B) 16 C) 32 D) 64

Ans:A,A


Which command would you place on interface on a private network?
Options: ip nat inside,    ip nat outside,    ip outside global,    ip inside local

Ans:A ,A


The daily processing of corrections to customer accounts best exemplifies the processing mode of:
Options: Batch processing,    Real-time processing,    Time-sharing,    Offline processing

Ans:A ,A


The funds management subsystem attempts to
Options: increase cash input,    decrease cash output,    balance cash inflow with outflow,    All of the above

Ans:C ,C


Three different aspects of colour are used to define specific colours. They are hue, saturation, and:
Options: metamer,    value,    gray scale,    shading

Ans:B ,B


A type of line printer that uses an embossed steel band to form the letters printed on the paper is
Options: Golf ball printer,    Dot-matrix printer,    Laser printer,    Band printer

Ans:D,D


Linked lists are best suited
Options: A)for relatively permanent collections of data b.for the size of the structure and the data in the structure are constantly changing c.for both of above situation d.for none of above situation

Ans:B, For the size of the structure and the data in the structure are constantly changing


What is the result of adding an IP address to the DNS server search order
Options: It restricts browsing to that DNS server,    It overrides the local systems IP address,    It tells the DNS Server where the local system is located,    It tells the local system where the DNS Server is located

Ans:D ,D


Pipeline implement
Options: A . fetch operand B . calculate operand C . execute instruction D . all of above

Ans:D, all of above

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