Snapshot of the data in the database at a given instant of time is called


Options: Database Schema B. Database Instance C. Database Snapshot D. All of the above

Ans:– B ,






More Database Systems Related questions:


How many symbols exist in Baudot code?
Options: 42,    116,    58,    76

Ans:C ,C


. Which of the following is not a type of Software

Options: A) System Software B) Application Software C) Utility Software D) Entertainment Software

Ans:D,D


What will be the output of the program? #include<stdio.h> int main() { typedef float f; static f *fptr; float fval = 90; fptr = &fval; printf("%f\n", *fptr); return 0; }
Options: 9,    0,    90.000000,    90

Ans:C ,C


Fork is
Options: the dispatching of a task,    the creation of a new job,    the creation of a new process,    increasing the priority of a task

Ans:C ,C


85. A _____ contains buttons, boxes, and menus that allow tasks to be performed more quickly than using the menu bar.
Options: a. format bar b. status bar c. command bar d. toolbar

Ans:– D ,– D


To scan a and b given below, which of the following scanf() statement will you use? #include<stdio.h> float a; double b;
Options: scanf("%f %f", &a, &b);,    scanf("%Lf %Lf", &a, &b);,    scanf("%f %Lf", &a, &b);,    scanf("%f %lf", &a, &b);

Ans:D ,D


Bring a page into memory only when it is needed is called
Options: Demand Memory B. Demand Paging C. Page Fault D. Page Segmentation

Ans:– B ,


. 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


An autonomous homogenous environment is which of the following?
Options: The same DBMS is at each node and each DBMS works independently.,    The same DBMS is at each node and a central DBMS coordinates database access.,    A different DBMS is at each node and each DBMS works independently.,    A different DBMS is at each node and a central DBMS coordinates database access.

Ans:A ,A


The generic two-level data warehouse architecture includes which of the following?
Options: At least one data mart,    Data that can extracted from numerous internal and external sources,    Near real-time updates,    All of the above.

Ans:B ,B


Which command is used to display the end of the file?
Options: head - r,    tail,    eof,    bof

Ans:B ,B


. What is the number of read-write heads in the drive for a 9-trac magnetic tape?
Options: A) 9 B) 16 C) 18 D) 27

Ans:A,A


The fundamental requirements of private-to-public network interconnection methods which need to be provided in gateways is/are
Options: universal accessibility for private network Data Terminal Equipment (DTE),    adequate cost control mechanisms for administration of the private networks,    to assign address to private network DTEs,    a and b both

Ans:D ,D


. Which of the following is not an operating system?
Options: a. DOS b. Linux c. Windows d. Oracle

Ans: d, d


One of the major benefits of using CAD in tool design is that:
Options: product design represents approximately one-half the engineering costs,    tool motions can be checked to see if there is interference between the tool and the object,    there is better coordination in the materials-handling area,    it simplifies the trial-and-error method

Ans:B ,B


You are working with a network that is 172.16.0.0 and would like to support 600 hosts per subnet. What subnet mask should you use?
Options: 255.255.192.0,    255.255.224.0,    255.255.240.0,    255.255.248.0

Ans:E ,E


The Management Information System (MIS) provides timely and effective information to support decision making and other necessary management functions. Can you point out the sub-system which does not being to the MIS?
Options: Operational Tectical System,    Decision Support System (DSS),    Data Communication System,    Automated Office System

Ans:C ,C


The computer translates the condition of each switch to a number. What number is represented by the ON state?
Options: +7,    +3.75,    1,    0

Ans:C ,C


The basic unit of measurement for resistance is the:
Options: volt,    ampere,    ohm,    watt

Ans:C ,C


. This is the stage in database design where one gathers and list all the necessary fields for the database project.
Options: a. Data definition b. Data refinement c. Establishing relationship d. None of the above

Ans:1 – a ,1 – a


. Which unit converts user data into machine readable form?
Options: A) Input unit B) Output unit C) ALU D) Control Unit

Ans:A,A


Conversion of hexadecimal number 1D7F16 to a decimal number is
Options: 755110,    877110,    555710,    778110

Ans:A ,A


Accessing records from a file directly without searching from the beginning of the file is
Options: Time sharing,    Random,    Direct access,    Access time

Ans:C ,C


The rise time of a pulse waveform is the time required for the voltage to rise:
Options: from zero to its rms value,    from zero to its peak value,    from 10% of the peak value to 70.7% of the peak value,    from 10% of the peak value to 90% of the peak value

Ans:D ,D


. Which is not a system tool?
Options: a. Folder b. Backup c. Scandisk d. Format

Ans:3 – a ,3 – a


Where is a hub specified in the OSI model?
Options: Session layer,    Physical layer,    Data Link layer,    Application layer

Ans:B ,B


Which of the following column properties would be used to specify that cells in a column must contain a monetary value?
Options: Null status,    Data type,    Default value,    Data constraints

Ans:B ,B


What is modified when changing the system start-up boot sequence?
Options: BIOS/CMOS,    CONFIG.SYS,    autoexec.bat,    COMMAND.COM

Ans:A ,A


What should be add before a fraction to avoid entering it as a date?
Options: // B. FR C. Zero D. Zero Space

Ans:– D ,


Which command of DOS is used to compare two floppy disks?
Options: DISKCOPY,    DISKCOMP,    DISKCOPY A: B/V,    FORMAT A: B:

Ans:B ,B


_____ is the use of a model in an attempt to identify and/or reflect the behaviour of a real person, process, or system.
Options: master,    decision,    plan,    simulation

Ans:D ,D


The disk concept for reducing time lost from rotational delay is:
Options: fixed block addressing,    cylinder, track, sector data,    staggered addressing,    graduated block identification

Ans:C ,C


Which of the following provides a printed copy of your presentation?
Options: a. Outline b. Speaker notes c. Audience handouts d. All of the above

Ans: – C , – C


Instruction in computer languages consists of
Options: A) OPCODE B) OPERAND C) Both of above D) None of above

Ans:-C,-C


Waveforms are graphs that show:
Options: frequency on the vertical axis and amplitude on the horizontal axis,    amplitude on the vertical axis and frequency on the horizontal axis,    amplitude on the vertical axis and the passage of time on the horizontal axis,    the passage of time on the vertical axis and amplitude on the horizontal axis

Ans:C ,C


Pointers are useful in
Options: Locating a particular sector of a magnetic disk,    Pointing mistakes in input data,    Traversing a linked list,    All of the above

Ans:C ,C


What is the shortcut key for “Find and Replace ” dialog box?
Options: Ctrl + F B. Ctrl + R C. Ctrl + H D. Ctrl + Shift + F

Ans:– C ,


Which type of entity has its relationship to another entity determined by an attribute in that other entity called a discriminator?
Options: Supertype entity,    Subtype entity,    Archetype entity,    Instance entity

Ans:B ,B


What is meant by the term RAM?
Options: Memory which can only be read,    Memory which can be both^read and written to,    Memory which is used for permanent storage,    Memory which can only be written to

Ans:B ,B


To autofit the width of column
Options:  A) Double click the right border of column, B) Double click the left border of column, C) Double click the column header, D) All of above,

Ans:-A,-A


Which JDBC driver Type(s) is(are) the JDBC-ODBC bridge?
Options: Type 1,    Type 2,    Type 3,    Type 4

Ans:A ,A


. In EXCEL, you can sum a large range of data by simply selecting a tool button called …..?
Options: a. AutoFill b. Auto correct c. Auto sum d. Auto format

Ans:– c,– c


A data item which is not broken down into smaller units is _____
Options: Data element,    Elementary data item,    Data entry,    Database management

Ans:B ,B


An extent is which of the following?
Options: A keyword that indicates that the subclass inherits from a superclass,    A keyword that indicates that the superclass inherits from a subclass,    The set of all instances of a class within a database,    Only one instance of a class within a database

Ans:C ,C


. Which of the following Windows do not have Start button
Options: a. Windows Vista b. Windows 7 c. Windows 8 d. None of above

Ans: c, c


. Which of the following memories has the shortest access times?

Options: A) Cache memory B) Magnetic bubble memory C) Magnetic core memory D) RAM

Ans:A,A


Which layers of the OSI model are host-to-host layers?
Options: Transport, Session, Persentation, Application B. Network, Transport, Session, Presentation C. Datalink, Network, Transport, Session D. Physical, Datalink, Network, Transport

Ans:– A ,


. Who invented the microprocessor?
Options: A) Marcian E Huff B) Herman H Goldstein C) Joseph Jacquard D) All of above

Ans:A,A


. The purpose of vacuum tube was to NOT ack like
Options: A) an amplifier B) a switch C) a router D) None of above

Ans:3-C,3-C


. Oncetext has been cut to the clipboard, you can .....that text into another document
Options: a. Paste b. Copy c. Transfer d. None of the above

Ans: a, a

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