Which of the following is not binary operation?


Options: Union B. Project C. Set Difference D. Cartesian Product

Ans:– B ,


Description: mcqquestions






More Database Systems Related questions:


. An Excel Workbook is a collection of …….
Options: a. Workbooks b. Worksheets c. Charts d. Worksheets and Charts

Ans:– d,– d


Elapsed time, between initiating a query and receiving a response is called
Options: response time,    waiting time,    processing time,    Turnaround time

Ans:D ,D


When you want to insert a blank imbedded excel object in a word document you can
Options: a. Click the object command on the insert menu b. Click the office links button on the standard toolbar c. Click the create worksheet button on the formatting toolbar d. Click the import excel command on the file menu

Ans:#8211; a,#8211; a


Which network is a packet switching network?
Options: Ring network,    LAN,    Star network,    EuroNET

Ans:D,(Danswer


. Who invented Integrated Circuits?
Options: A) Jack Kilby B) Robert Noyce C) Both of above D) None of above

Ans:C,C


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


A family of polynomial block codes designed to correct burst errors is known as
Options: Bar codes,    Gray codes,    Fire codes,    mnemonics codes

Ans:C ,C


. 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 ,


A _____ is an outline of a process that keeps develop successful information systems
Options: System Development Life Cycle,    CASE tool,    Phased Conversion,    Success Factors

Ans:A ,A


The average time necessary for the correct sector of a disk to arrive at the read write head is _____
Options: Down time,    Seek time,    Rotational delay,    Access time

Ans:C,(Canswer


CD-ROM is a
Options: Semiconductor memory,    Memory register,    Magnetic memory,    All of the above

Ans:E ,E


How to restrict to run a macro automatically when starting Microsoft Excel?
Options: Hold down the SHIFT key during startup B. Hold down the CTRL key during startup C. Hold down the ESC key during startup D. Hold down the ALT key during startup

Ans:– A ,


. switching between portrait and landscape modes involves the:
Options: a. header and footer toolbar b. print layout view c. page setup dialog box d. none of the above

Ans:–  C,–  C


The [line number G] key allows you
Options: to move cursor left by one position,    to move cursor right by one position,    to move cursor down by one line,    to move cursor to the beginning of the line specified by the number

Ans:D ,D


  Microsoft PowerPoint can insert objects from the following add-ins? A.  Equation Editor B.  Organization Chart C.  Photo Album D.  All of these
Options:

Ans: – D ,


. How do you print your slides in a handout that includes lines for notes?
Options: a. In the print dialog box, select handout and set the number of slides per page to 3 b. In the print dialog box, select handout and set the number of slides per page, then select the include comment page option c. In the print dialog box select note page instead of handout d. All of above

Ans:3 – A ,3 – A


. Selecting text means, selecting?
Options: a. a word b. an entire sentence c. whole document d. any of the above

Ans: –  D , –  D


. What is the function of folder?
Options: a. Save files b. Delete files c. Move files d. All of the above

Ans:1 – d ,1 – d


If you need to edit a relationship
Options: a. Right click the relationship line and choose Edit Relationship b. Double click the relationship line c. Both of above d. None of above

Ans:ndash; c,ndash; c


What do the following declaration signify? int *ptr[30];
Options: ptr is a pointer to an array of 30 integer pointers.,    ptr is a array of 30 pointers to integers.,    ptr is a array of 30 integer pointers.,    ptr is a array 30 pointers.

Ans:B ,B


Convert the 080D4E machine language instructions into assembly language, assuming that they were not generated by pseudo-ops:
Options: ASRA,    LOADA h#OD4E, i,    STOREA h#014B, d,    ADDA h#01FE, i

Ans:B ,B


Which command is used to sort the lines of data in a file in reverse order
Options: sort,    sh,    st,    sort -r

Ans:D ,D


In a synchronous modem, the digital-to-analog converter transmits signal to the
Options: equalizer,    modulator,    demodulator,    terminal

Ans:A ,A


In ROM BIOS, the acronym BIOS stands for:
Options: Basic Intuitive Output Set,    Basic Input Organizational System,    Basic Input Output System,    Basic Industry Operating System

Ans:C ,C


A static jolt of as little of _____ volts can fry most any PC integrated circuit.
Options: 200,    30,    1000,    200

Ans:B ,B


. The insertion point looks like a(n) ____.
Options: a. H-pointer b. I-pointer c. H-beam d. I-beam

Ans:4 – d ,4 – d


One advantage of a PC in industrial control is that it:
Options: has a reliable long life compared to relay logic,    is very difficult for the inexperienced programmer to understand,    is unreliable because there are no moving parts,    All of the above

Ans:A ,A


In a network with dozens of switches, how many root bridges would you have?
Options: 1,    2,    5,    12

Ans:A ,A


. Which of these toolbars allows changing of Fonts and their sizes?
Options: a. Standard b. Formatting c. Print Preview d. None of these

Ans:–  B,–  B


Which type of processing that produces output results immediately after input data are entered into a computer system
Options: Time-sharing,    Interactive,    Batch processing,    Real-time processing

Ans:B ,B


Which of the following function is correct that finds the length of a string?
Options: int xstrlen(char *s) { int length=0; while(*s!='\0') { length++; s++; } return (length); } ,    int xstrlen(char s) { int length=0; while(*s!='\0') length++; s++; return (length); } ,    int xstrlen(char *s) { int length=0; while(*s!='\0') length++; return (length); } ,    int xstrlen(char *s) { int length=0; while(*s!='\0') s++; return (length); }

Ans:A ,A


Which of the following transmission systems provides the highest data rate to an individual device
Options: Computer bus,    Telephone lines,    Voice band modem,    leased lines

Ans:A ,A


A laser printer generates a totally black page, what is the cause?
Options: malfunctioning imaging laser,    low level in the toner cartridge,    no power to transfer corona,    no power to the primary corona

Ans:D ,D


  After choosing a predefined template, which option has to be chosen to change the background color?
Options: Design Template B. Color Scheme C. Animation Scheme D. Color Effects

Ans:– B ,


Which of the following technique is used for allocating capacity on a satellite channel using fixed-assignment FDM?
Options: Amplitude modulation,    Frequency-division multiple access,    Frequency modulation,    Frequency-shift keying

Ans:B ,B


A common way to take x, y coordinates off a drawing is to use a
Options: light pen,    digitiser,    Direct view storage tube (DVST),    Tablet

Ans:B ,B


39. Which key is used to increase left indent?
Options: a. Ctrl+I b. Ctrl+M c. Alt+I d. F10

Ans:–  B ,–  B


The essential features of a number system are
Options: Radix,    Set of distinct counting digits,    bits,    Both (a) & (b)

Ans:D ,D


Output segments of AI programming contain(s)
Options: printed language and synthesized speech,    Manipulation of physical object,    Locomotion,    All of the above

Ans:D ,D


With respect to personnel matters in the United States, OSHA stands for
Options: Overseas Housing Authority,    Occupational Safety and Health Act,    Office Standard Help Agreement,    Office Staff Help Administration

Ans:B ,B


A 2000-character text file has to be transmitted by using a 1,200 baud modem. Can you tell how long will it take?
Options: 2 seconds,    20 seconds,    120 seconds,    12 seconds

Ans:B ,B


What command is used to display your current working directory?
Options: path,    pwd,    prompt $p$g,    dir

Ans:B ,B


The function(s) of file system is (are):
Options: to provide complete file naming freedom to the users and to permit controlled sharing of files,    to provide for long and short term storage of files with appropriate economic tradeoffs.,    to provide security against loss of information due to system failure,    all of the above

Ans:D ,D


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


Problem identification most often comes from information produced from
Options: data describing what will happen in the future,    data describing what has happened in the past,    data describing what is happening now,    both (a) and (b)

Ans:D ,D


Which of the following processor is software that accepts user ideas, manipulates and reorganises them in user-specified ways and then produces a refined model of those thoughts.
Options: Distribute,    Out-line,    Multi,    On-line

Ans:B ,B


Which of the following affects the extent to which you are involved with the system development life cycle in your company?
Options: your job description,    size of the organization,    your relevant experience,    All of the above

Ans:E ,E


On a dot matrix printer, you should never lubricate which part?
Options: carriage rails,    printhead pins,    paper advance bearings,    carriage bearings

Ans:B ,B


Flexible manufacturing allows for:
Options: factory management,    automated design,    tool design and tool production,    quick and inexpensive product changes

Ans:D ,D


A device or system not directly connected to the CPU is
Options: On-line,    Keyboard,    Memory,    Off-line

Ans:D ,D

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