A Relation is a


Options: Subset of a Cartesian product of a list of attributes B. Subset of a Cartesian product of a list of domains C. Subset of a Cartesian product of a list of tuple D. Subset of a Cartesian product of a list of relations

Ans:– B ,






More Database Systems Related questions:


. Which of the following can be used to divide a web page into areas?
Options: a. frames b. theme c. table of contents d. none of the above

Ans: –  A , –  A


When installing PCI NICS you can check the IRQ availability by looking at
Options: dip switches,    CONFIG.SYS,    jumper settings,    motherboard BIOS

Ans:D ,D


. Charles Babbage is considered the father of modern computers because
Options: A) of his difference engine B) of his analytical engine C) his concept of input, mill and output D) All of above

Ans:C,C


When did arch rivals IBM and Apple Computers Inc. decide to join hands?
Options: 1978,    1984,    1990,    1991

Ans:D,D


A ________ is a stored program that is attached to a table or a view.
Options: pseudofile,    embedded SELECT statement,    trigger,    None of the above is correct.

Ans:C ,C


. Which would you choose to create a bar diagram?
Options: a. Edit, Chart b. Insert, Chart c. Tools, Chart d. Format, Chart

Ans:– b,– b


Which operator will be used with chmod command to assign absolute permission?
Options: +,    -,    =,    %

Ans:C ,C


You wished to justify text over the height of paper, which option will you choose
Options:  A) Page Setup from File menu, B) Paragraph from Format menu, C) From formatting toolbar, D) Font from Format menu, 

Ans:-A,-A


If you do not know the current time, which command will you use to display the time?
Options: COPY,    VER,    TIME,    FORMAT

Ans:C ,C


. Formatting a cell in Currency, you can specify
Options: a. Decimal Places b. Currency Symbol c. Both of above d. None of above

Ans:– c,– c


In AI programming, a list may contain:
Options: cells,    fields,    pointers,    All of the above

Ans:D ,D


. Which is the Shortcut key to start a presentation from the beginning?
Options: a. F5 b. ALT + F5 c. CTRL + F5 d. SHIFT + F5

Ans:0 – A ,0 – A


. Ctrl + M
Options: New Document B. Close Document C. Right Indent D. Left Indent

Ans:– D ,


Primary storage is _____as compared to secondary storage.
Options: Slow and inexpensive,    Fast and inexpensive,    Fast and expensive,    Slow and expensive

Ans:C ,C


If the transient response is under damped:
Options: steady-state will be reached faster than if the system is overdamped,    the value of the output will exceed the value of the input at times during the transient period,    the present overshoot is zero,    both a and b

Ans:D ,D


Integrated Circuits (Ics) are related to which generation of computers?
Options: A) First generation B) Second generation C) Third generation D) Fourth generation

Ans:-C,-C


To reconstruct a system, which of the following key element(s) must be considered :
Options: feedback and environment,    control and processors.,    outputs and inputs,    All of the above

Ans:D ,D


Compared to an open-loop system, a closed-loop control system is:
Options: more accurate,    more complex,    more stable,    All of the above

Ans:D ,D


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

Ans:A ,A


. When was the world’s first laptop computer introduced in the market and by whom?
Options: A) Hewlett-Packard B) Epson, 1981 C) Laplink traveling software In1982 D) Tandy model-2000, 1985

Ans:B,B


Background color or effects applied on a document is not visible in
Options: a. Web layout view b. Print Layout view c. Reading View d. Print Preview

Ans:– D,– D


In Prototyping, the following are used
Options: screen generators,    input generators,    application generators,    All of the above

Ans:D ,D


You are editing an worksheet that you had previously saved. If you want to save the edited sheet without losing the original one, which command should you use?
Options: New B. Save As C. Edit D. Save

Ans:– B ,


. A _____ is a collection of predefined design elements and color schemes.
Options: a. feature b. hyperlink c. palette d. theme

Ans:– D,– D


. The Second Generation Computer was based on ________.
Options: A) Vacuum Tube B) Silicon Chips C) Transistor D) Bio Chips

Ans:C,C


The processes at the most detailed level of the data flow diagrams are called
Options: transform descriptions,    functional primitives,    data flows,    interfaces

Ans:B ,B


. Suppose you wanted to create an AutoCorrect entry that would type the words ‘We regret to inform you that your submission has been declined’ Of the following choices, which would be the best name you could assign to this entry?
Options: a. regret b. subdecl c. We regret to inform you that your submission has been declined d. 11

Ans: – B , – B


. Computer professionals working in a computer centre are
Options: A) Software B) Firmware C) Hardware D) Humanware

Ans:1-D,1-D


Which DOS driver is used to emulate expanded memory?
Options: Himem.sys,    EMM386.exe,    Mem386.sys,    Ramdrive.sys

Ans:B ,B


Which statement is valid about computer program?
Options: A) It is understood by a computer B) It is understood by programmer C) It is understood user D) Both a & b

Ans:-D,-D


The accuracy of the floating-point numbers representable in two 16-bit words of a computer is approximately
Options: A) 16 digits B) 6 digits C) 9 digits D) All of above

Ans:-B,-B


What is the address size of IPv6 ?
Options: 32 bit B. 64 bit C. 128 bit D. 256 bit

Ans:– C ,


Which is an example of a formula?
Options: =A1+A2 B. =add(A1:A2) C. A1+A2 D. SUM(A1:A2)

Ans:– A ,


. The computer that process both analog and digital is called
Options: A) Analog computer B) Digital computer C) Hybrid computer D) Mainframe computer

Ans:C,C


From which generation operating systems were developed?
Options: A) First B) Second C) Third D) Fourth

Ans:-C,-C


. The first cell in EXCEL worksheet is labeled as
Options: a. AA b. A1 c. Aa d. A0

Ans:– b,– b


What is the inductive reactance of a 2-H coil operating at 60 Hz?
Options: 754 Ohm,    30 Ohm,    60 Ohm,    120 Ohm

Ans:A ,A


. The maximum zoom percentage in Microsoft PowerPoint is
Options: a. 1 b. 2 c. 4 d. 5

Ans:1 – C ,1 – C


With respect to personnel matters in the United States, ERISA stands for
Options: Earnings and Revenue Information System Administration,    Early Retirement Income Standards Act,    Employee Review-in-Service Administration,    Employee Retirement Income Security Act

Ans:D ,D


14. While working with MS-DOS, which command is used to rename a file named file1.doc to file2.doc from a different directory called dir1?
Options: a. Ren2.doc dirfile1.doc b. Ren file1.doc file2.doc c. Ren .docdir.doc d. Ren dir1file1.doc file2.doc

Ans:Correct Answer: d,Correct Answer: d


.   Which command select all object at one time when selecting multiple objects to be deleted?
Options: a. Alt + a b. Ctrl + a c. Shift + Enter d. Edit, Select All

Ans:4 – D ,4 – D


. Which of the following parameters decided the performance of the memory?
Options: Latency B. Cycle time C. Transfer rate D. All of the above

Ans:– D ,


. Windows can run
Options: a. One application only b. Two applications only c. Four applications only d. All of above

Ans:7 – d ,7 – d


Logical models form the basis for computing systems that generate information useful in dealing with
Options: dynamic situations,    uncertain situations,    complex situations,    All of the above

Ans:D ,D


. Which device is required for the Internet connection?

Options: A) Joystick B) Modem C) CD Drive D) NIC Card

Ans:B,B


What will be the output of the program (sample.c) given below if it is executed from the command line? cmd> sample one two three /* sample.c */ #include<stdio.h> int main(int argc, char *argv[]) { int i=0; i+=strlen(argv[1]); while(i>0) { printf("%c", argv[1][--i]); } return 0; }
Options: three two one,    owt,    eno,    eerht

Ans:C ,C


What is the name of the technique in which the operating system of a computer executes several programs concurrently by switching back and forth between them?
Options: Partitioning,    Multitasking,    Windowing,    Paging

Ans:B ,B


The addition of _____ can reduce processing time.
Options: A buffer,    An EPROM,    A converter,    A co-processor

Ans:D ,D


Demodulation is a process of
Options: converting analog to digital signals,    converting digital to analog signals,    multiplexing various signals into one high speed line signals,    performing data description.

Ans:A ,A


What is the name of the reading device which mades use of photosensors and laser technologies to interpret printed, typed or even hand-written data directly from the source documents?
Options: MICR,    OCR,    Mark-sensing device,    ATM

Ans:B ,B

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