A logical description of some portion of database that is required by a user to perform task is called as


Options: System View B. User View C. Logical View D. Data View

Ans:– B ,


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More Database Systems Related questions:


Which part of the system allows the user to interact with the compiler? (a) Memory
Options: Translator,    Communications processor,    Interpreter,    None of the above

Ans:D ,D


In order to arrange the countries from those with the highest population to those with the lowest, you need to sort on the population field in ……………
Options: ascending order B. descending order C. alphabetical order D. random order

Ans:– B ,


A translator is best described as
Options: an application software,    a system software,    a hardware component,    all of the above

Ans:B ,B


Information is produced by processing data from which of the following sources?
Options: data provided by higher levels of management,    data provided by lower levels of management,    internally generated data,    externally generated data

Ans:E ,E


A prewritten program that's sold to perform a common task is called an application
Options: System software,    Package,    Utilities,    Program

Ans:B ,B


The personnel which deal with the computer and its management put together is known as
Options: Firm ware,    Human ware,    Software,    Hardware

Ans:B ,B


A rule of thumb for choosing indexes for a relational database includes which of the following?
Options: Indexes are more useful on smaller tables.,    Indexes are more useful for columns that do not appear frequently in the WHERE clause in queries.,    Do not specify a unique index for the primary key of each table.,    Be careful indexing attributes that have null values.

Ans:D ,D


A public key encryption system
Options: allows anyone to decode the transmission,    allows only the correct sender to decode the data,    allows only the correct receiver to decode the data,    does not encode the data before transmitting it

Ans:C ,C


. With which view can you see how text and graphics will appear on the printed page?
Options: a. Normal b. Print Layout c. Outline d. Web Layout

Ans:–  B,–  B


A device that converts mechanical into electrical energy is?
Options: solar cell,    thermocouple,    chemical cell,    generator

Ans:D ,D


To connect a computer with a device in the same room, you might be likely to use
Options: a coaxial cable,    a dedicated line,    a ground station,    All of the above

Ans:A ,A


65. Word includes a series of predefined graphics called _____ that can be inserted into a Word document.
Options: a. clip art b. hyperlinks c. captions d. bookmarks

Ans:– A ,– A


Sequential or series testing is
Options: running the system with line data by the actual user,    making sure that the new programs do in fact process certain transactions according to Specifications,    is checking the logic of one or more programs in the candidate system,    testing changes made in an existing or a new program

Ans:C ,C


. Which command will you choose to convert a column of data into row?
Options: a.  Cut and Paste b.  Edit >> Paste Special >> Transpose c.  Both of above d.  None of above

Ans:– b,– b


Which of the following best describes a computer-based information system?
Options: A system in which a computer is used to turn data into information,    Inputting data,    Processing data,    Performing complex mathematical calculations

Ans:A ,A


. Which of the following should you do to bring a bullet back to a previous level?
Options: a. Press the shift + tab keys b. Press the shift key c. Press the enter key d. Press the tab key

Ans:7 – A ,7 – A


. In help menu of Excel, which of the following tabs are found?
Options: a. Contents tab b. Answer Wizard tab c. Index tab d. all of the above.

Ans:– d,– d


. The ….command is used to open windows based application directly from DOS prompt
Options: a. Run b. Start c. Load d. Execute

Ans:9 – b ,9 – b


The accuracy of the floating point numbers representable in two 16 bit words of a computer is approximately
Options: 16 digits,    6 digits,    4 digits,    All of the above

Ans:B ,B


Regarding a VDU, which statement is more correct?
Options: It is an output device,    It is an input device,    It is a peripheral device,    It is a hardware item

Ans:C ,C


Which functional component of a computer is responsible for the computing?
Options: Input,    Output,    CPU,    Memory

Ans:C ,C


When your hard drive crashes from any of the correct selections in the question above, or from dropping it, it is known as head-to-disk interference, or HDL
Options: True,    False,    ,    

Ans:A ,A


What are the requirements for the solution to critical section problem?
Options: Mutual Exclusion B. Progress C. Bounded Waiting D. All of Above

Ans:– D ,


. To print information from a table, the __________ tool is the best choice.
Options: a. form b. report c. query d. macro

Ans:2 – b ,2 – b


. Which of the following is first generation computer?
Options: A) EDSAC B) IBM 1401 C) CDC 1604 D) ICL 2950

Ans:0-A,0-A


Which of the following data constraints would be used to specify that the value of cells in a column must be one of a specific set of possible values?
Options: A domain constraint,    A range constraint,    An intrarelation constraint,    An interrelation constraint

Ans:A ,A


. How can you stop a slide show?
Options: a. Press the right arrow b. Press Escape c. Press the left arrow d. Press the down arrow

Ans:7 – B ,7 – B


. The primary purpose of an operating system is:
Options: To make the most efficient use of the computer hardware B. To allow people to use the computer, C. To keep systems programmers employed D. To make computers easier to use

Ans: – A ,


Where a row and a column meet, what do you call that?
Options: A cell B. A block C. A box D. None of the above

Ans:– A ,


Which was the world's first minicomputer and when was it introduced?
Options: PDP-1, 1958,    1MB System/36, 1960,    PDP-11 1961,    VAX 11/780, 1962

Ans:A ,A


Sequential retrieval on a primary key for sequential file storage has which of the following features?
Options: Very fast,    Moderately fast,    Slow,    Impractical

Ans:A ,A


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


Which provides the fastest data access time?
Options: RAM,    ROM,    CD-ROM,    Hard disk

Ans:A ,A


. Central Processing Unit is combination of
Options: A) Control and storage B) Control and output unit C) Arithmetic logic and input unit D) Arithmetic logic and control unit

Ans:D,D


Credit checking is done in the
Options: order processing system,    quotation system,    order entry system,    any of the above

Ans:C ,C


. To exit from the Resume Wizard and return to the document window without creating a resume, click the _____ button in any panel in the Resume Wizard dialog box.
Options: a. Cancel b. Back c. Next d. Finish

Ans:– D,– D


. Which option allows you to Bold all the negative values within the selected cell range:
Options: a. Zero Formatting b. Conditional Formatting c. Compare Formatting d. Negative Formatting

Ans:– b,– b


What will be the output of the program? #include<stdio.h> typedef struct error {int warning, err, exception;} ERROR; int main() { ERROR e; e.err=1; printf("%d\n", e.err); return 0; }
Options: 0,    1,    2,    Error

Ans:B ,B


Which command will delete the contents of NVRAM on a router?
Options: delete NVRAM,    delete startup-config,    erase NVRAM,    erase start

Ans:D ,D


In what file can you specify which users are not allowed to access a system via FTP?
Options: /etc/ftpusers,    /etc/hosts.deny,    /etc/ftpaccess,    All of the above

Ans:A ,A


MSD exe does not have information on:
Options: cache,    video,    operation system,    com ports

Ans:A ,A


Which key should be pressed to start a new paragraph in MS-Word?
Options: Down Cursor Key B. Enter Key C. Shift + Enter D. Ctrl + Enter

Ans:– B ,


Doubling the operating frequency of a capacitive circuit:
Options: doubles the amount of a capacitive reactance,    has no effect on the capacitive reactance,    cuts the capacitive reactance in half,    multiplies the capacitive reactance by 6.28

Ans:C ,C


When the Q point moves along the load line, the voltage increases when the current
Options: Decreases,    Stays the same,    Increases,    Can be any of above

Ans:C ,C


. To change the volume label
Options: a. Vol b. Label c. Scandisk d. None

Ans:5 – b ,5 – b


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> #include<stdlib.h> int main(int argc, char **argv) { printf("%s\n", *++argv); return 0; }
Options: myprog,    one,    two,    three

Ans:B ,B


. What is a light pen?
Options: Mechanical Input device B. Optical input device C. Electronic input device D. Optical output device

Ans: – B ,


Which column contains all details of the permissions of a file when you issue the ls -l command?
Options: second,    fourth,    third,    first

Ans:D ,D


In OSI model, which of the following layer transforms information from machine format into that understandable by user
Options: application,    presentation,    session,    physical

Ans:B ,B


. An output device that uses words or messages recorded on a magnetic medium to produce audio response is
Options: A) Magnetic tape B) Voice response unit C) Voice recognition unit D) Voice band

Ans:B,B

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