A hybrid computer uses a _____ to convert digital signals from a computer into analog signals.


Options: Modulator,    Demodulator,    Modem,    Decoder

Ans:C,(Canswer






More Computer Fundamental Related questions:


What is the keyboard shortcut for creating a chart from the selected cell range?
Options: A. F2 B. F4 C. F8 D. F11

Ans:– D ,F11


It is possible to _______ a data source before performing a merge.
Options: a. create b. modify c. sort d. all of the above

Ans:– D,– D


. You can group noncontiguous worksheets with
Options: a. The group button on the standard toolbar b. The shift key and the mouse c. The ctrl key and mouse d. The alt+enter key

Ans:– c,– c


. Which programming languages are classified as low level languages?
Options: A) Basic, COBOL, FORTRAN B) Prolog 2, Expert Systems C) Knowledge based Systems D) Assembly Languages

Ans:D,D


. How do you tell one cell from another?
Options: a. By numbers b. By letters c. By its address d. by color

Ans:– c,– c


Missing slot covers on a computer can cause?
Options: over heat,    power surges,    EMI.,    incomplete path for ESD

Ans:A ,A


. Which function can not be used for calculated controls in a report?
Options: a. SUM b. AVG c. MPT d. COUNT

Ans:– c,– c


A 4 KHz noise less channel with one sample ever 125 per sec is used to transmit digital signals. If Delta modulation is selected, then how many bits per second are actually sent?
Options: 32 kbps,    8 kbps,    128 kbps,    64 kbps.

Ans:B ,B


In wildcard specification ? is used as replacement for
Options: a. one character b. two character c. three character d. none of the above

Ans:8 a.,8 a.


. The brain of any computer system is
Options: A) Control Unit B) Arithmetic Logic Unit C) Central Processing Unit D) Storage Unit

Ans:C,C


. Which is the largest computer?
Options: A) Mainframe Computer B) Mini Computers C) Micro Computers D) Super Computers

Ans:A,A


Which of the following is a layer 2 protocol used to maintain a loop-free network?
Options: VTP,    STP,    RIP,    CDP

Ans:B ,B


If, in a computer, 16 bits are used to specify addresses in a RAM, the number of addresses will be
Options: 216,    65,536,    64K,    Any of the above

Ans:D ,D


What hardware architectures are not supported by Red Hat?
Options: SPARC,    IBM-compatible,    Alpha,    Macintosh

Ans:D ,D


A technique for displaying applications where complex 3-D geometric are required for the exteror shall of a product is called:
Options: solid modeling,    2-D modeling,    3-D modeling,    surface modeling

Ans:D ,D


Which of the following registers is loaded with the contents of the memory location pointed by the PC?
Options: Memory Address Register,    Memory Data Register,    Instruction Register,    Program Counter

Ans:C ,C


Ctrl + W
Options: a. Save and Print the Document b. Save and Close Word Application c. Save and Close document d. Without Save, Close Document

Ans:–  C,–  C


. How can you show or hide the gridlines in Excel Worksheet?
Options: a.  Go to Tools >> Options >> View tab and mark or remove the check box named Gridline b.  Click Gridline tool on Forms toolbar c.  Both of above d.  None of above

Ans:– c,– c


The OCR reading unit attached to a POS terminal is called a
Options: light pen,    wand,    cursor,    All of the above

Ans:B ,B


Which of the following files contains information related to password aging?
Options: Shadow,    password,    profile,    All the three

Ans:B ,B


A condition that led to the development of databases was
Options: a demand for more data to support information needs,    an increase in the amount of data handled by organizations,    the proliferation of data files,    All of the above

Ans:D ,D


A communication network which is used by large organizations over regional, national or global area is called
Options: LAN,    WAN,    MAN,    Intranet

Ans:B ,B


A Turnaround document
Options: is circulated among all the staff of an organization.,    is circulated among all the heads of departments of an organization.,    is output at one point which later comes back as an input,    All of the above

Ans:C ,C


Before a disk drive can access any sector record, a computer program has to provide the record's disk address. What information does this address specify?
Options: Track number,    Sector number,    Surface number,    All of the above

Ans:D ,D


31. The _____ in the Resume Wizard dialog box indicates the wizard is ready to create the document.
Options: a. Start panel b. Address panel c. Add/Sort Heading panel d. Finish panel

Ans:– D ,– D


One byte can be used to encode any integer between 'O' and -inclusive
Options: 16,    256,    128,    255

Ans:D,D


On the PC side, the printer port is a:
Options: 25 pin female parallel connector,    15 pin female parallel connector,    25 pin male serial connector,    15 pin female serial connector

Ans:A,25 pin female parallel connector


A basic S-R flip-flop can be constructed by cross-coupling which basic logic gates?
Options: AND or OR gates,    XOR or XNOR gates,    NOR or NAND gates,    AND or NOR gates

Ans:C ,C


. What is the use of Researching Timings?
Options: a. This option allows you to rearrange slides b. This option allows you to set the time of animations c. This option allows you to rehearsal of slide presentation d. There is no such option in PowerPoint

Ans:5 – B ,5 – B


You have a class A network address 10.0.0.0 with 40 subnets, but are required to add 60 new subnets very soon. You would like to still allow for the largest possible number of host IDs per subnet. Which subnet mask should you assign?
Options: 255.240.0.0,    255.248.0.0,    255.252.0.0,    255.254.0.0

Ans:D ,D


Which of the following registers hold the information before it goes to the decoder
Options: control register,    data register,    accumulator,    address register

Ans:B ,B


By default, your document prints with:
Options: 1 inch top and bottom margins B. a portrait orientation C. 1.25 inches left and right margins D. all of the above

Ans:D,


An example of a hierarchical data structure is
Options: array,    link list,    tree,    All of the above

Ans:C ,C


Whenever a peripheral is being controlled by the CPU, it is said to be online. If additionally, the computer files are updated as soon as any change takes place, the system is called
Options: quick processing system,    batch processing system,    real time system,    remote processing system

Ans:C ,C


What is the similarity between a structure, union and enumeration?
Options: All of them let you define new values,    All of them let you define new data types,    All of them let you define new pointers,    All of them let you define new structures

Ans:B ,B


How to insert Tables in Slide?
Options: Insert Table from Insert menu B. Click on Insert Table in content pane of blank slide C. Option A & B D. Tables cannot be inserted in slides

Ans:– C ,


An example of a medium-speed, switched communications service is
Options: Series 1000,    Dataphone 50,    DDD,    All of the above

Ans:C ,C


A circuit which can store information is known as
Options: Integrated circuit,    Chip,    Memory cell,    Gate

Ans:C ,C


How many digits of the Network User Address are known as the DNIC (Data Network Identification Code)?
Options: first three,    first four,    first five,    first seven

Ans:B ,B


The _____ symbol is used in a flowchart to represent a calculation task.
Options: Input,    Output,    Process,    Start

Ans:C ,C


. Personnel who design, program, operates and maintains computer equipment refers to
Options: A) Console-operator B) Programmer C) Peopleware D) System Analyst

Ans:C,C


. What was the name of the first commercially available microprocessor chip?
Options: A) Intel 308 B) Intel 33 C) Intel 4004 D) Motorola 639

Ans:C,C


. Disk label name can be up to ….characters
Options: a. 8 b. 9 c. 11 d. 255

Ans:9 – c ,9 – c


An index register that is automatically incremented or decremented with each use is
Options: Auto index,    Asynchronous,    Assembler,    Compiler

Ans:A,(Aanswer


The outstanding Invoice file should be stared on a Pardon Access Storage Device if
Options: invoice data entry is on-line.,    payment recording is done in a batch rode,    inquires concerning payable are to be answered on-line,    last record points to the first record

Ans:C ,C


Which of the following is the correct order if calling functions in the below code? a = f1(23, 14) * f2(12/4) + f3();
Options: f1, f2, f3,    f3, f2, f1,    Order may vary from compiler to compiler,    None of above

Ans:C ,C


. You created a query with two tables that did NOT have a join line. The first table has 12 records and the second has 5. The resulting recordset would have how many records?
Options: a. 7 b. 17 c. 60 d. Not enough information to tell

Ans:5 – c ,5 – c


Most networks are connected to other local area or wide area networks. Select the best fit for answer:
Options: Internet works,    The Internet,    Internet revolution,    Internet technologies

Ans:A ,A


On a class C network with a subnet mask of 192, how many subnets are available?
Options: 254,    62,    30,    2

Ans:D,2


The main purpose of the system investigation phase is to produce
Options: a design report,    a requirement report,    a feasibility report,    All of the above

Ans:C ,C

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