Which of the following is the coding of data so that i...

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Which of the following is the coding of data so that is can't be easily understood if intercepted.


Options: Barcode,    Decoder,    Encryption,    Mnemonics

Ans:C,(Canswer






More Computer Fundamental Related questions:


The physical layer, in reference to the OSI model, defines
Options: data link procedures that provide for the exchange of data via frames that can be sent and received,    the interface between the X.25 network and packet mode device,    the virtual circuit interface to packet-switched service,    All of the above

Ans:B ,B


The ALU of a central processing unit does the essential maths work for the computer. What does the control unit do?
Options: Communicates its results,    Activates the output device,    Monitors the flow of information,    Control the printer

Ans:C ,C


One of the major components of a PC is the Central Processing Unit (CPU) which can be best described as:
Options: The device that sends the monitor signals telling it what to display,    The area that regulates all of the system power usage,    The area where ail the of the Basic input/output routines are stored,    The area where all of the processing takes place

Ans:D ,D


Timing using a TM990 micro¬computer:
Options: require an external timer added by the user,    is available on the standard CPU board,    can be handled in software,    both (b) and (c)

Ans:D ,D


The analog computer measures dimensions and its circuits use the differential and integral equations of continuous variables. The digital computer counts units and its circuits use
Options: Logic gates,    Discrete switches,    Boolean algebra id) Bayes' theorem,    None of the above

Ans:C ,C


Which of the following is the most critical requirement of a Passenger Reservation System?
Options: ease of programming,    response time,    graphical user Interface,    printing of tickets

Ans:B ,B


Front-end processor is a _____ designed specifically to handle the communications processing task.
Options: ALU,    Control unit,    CPU,    Register

Ans:C ,C


What is the use of Notes in slides?
Options: It will be displays at the time of Slide Presentation B. This is just Note about the slide       C. This is just for printing purpose only D. Notes cannot be inserted in Slides

Ans:– B ,


A small film-plate which is used for microfilming the output from a microcomputer screen is called
Options: microfilm,    microfiche,    film card,    COM

Ans:B,B


. Which device is used to backup the data?
Options: A) Floppy Disk B) Tape C) Network Drive D) All of the above

Ans:D,D


Which command is used to backup in DOS 6+ Version
Options: a. BACKUP b. MSBACKUP c. MSBACKEDUP d. All of the above

Ans:Correct Answer: b ,Correct Answer: b


A drum timer is a good example of:
Options: an output actuator,    an input sensor,    a position sensor,    a sequence controller

Ans:D ,D


. in MS Access, OLE Object Data type can store
Options: a. Microsoft Word documents b. Microsoft Excel spreadsheets c. Sounds d. All of the Above

Ans:– d,– d


A master document contains_________, each of which contains a pointer to a file on a
Options: A. Placeholders B. subdocuments C. bookmarks D. references

Ans:B ,subdocuments


Which of the following is not the responsibility of the utilities component of DBMS software?
Options: creating the physical and logical designs,    removing flagged records for deletion,    creating and maintaining the data dictionary,    monitoring performance

Ans:A ,A


RAM is used as a short memory because it is
Options: Volatile,    Has small capacity,    Is very expensive,    Is programmable

Ans:A,(Aanswer


. The other Col# are inactive when you’ve select 3 columns. How will you activate those boxes?
Options: a. double click on spacing box b. double click on inactive Col# c. Remove mark from Line between checkbox d. Remove mark from Equal Column Width check box

Ans:– D,– D


. Ctrl + Q
Options: Paragraph formatting (Line Space and Paragraph Space) B. Close Word Application without saving Document C. Print Whole Document without confirmation D. Does nothing

Ans:– A ,


A compiler is a translating program which
Options: A) Translates instruction of a high level language into machine language B) Translates entire source program into machine language program C) It is not involved in program’s execution D) All of above

Ans:-D,-D


. The MS DOS operating system is a
Options: a. Graphical user interface, single tasking operating system b. Graphical user interface, multitasking operating system c. Command driven interface, single tasking operating system d. Command driven interface, multitasking operating system

Ans:9 – c ,9 – c


We have Market Basket data for 1,000 rental transactions at a Video Store. There are four videos for rent -- Video A, Video B, Video C and Video D. The probability that Video D will be rented given that Video C has been rented is known as ________ .
Options: the basic probability,    support,    lift,    confidence

Ans:D ,D


Why are vacuum tubes also called valves?
Options: A) Because they can amplify the weak signals and make them strong B) Because they can stop or allow the flow of current C) Both of above D) None of above

Ans:-B,-B


. Which of the following line spacing is invalid?
Options: a. Single b. Double c. Triple d. Multiple

Ans: – C , – C


Which elements of a worksheet can be protected from accidental modification?
Options: Contents B. Objects C. Scenarios D. All of the above

Ans:– D ,


Point out the error in the following program (in Turbo C under DOS). #include<stdio.h> union emp { int empno; int age; }; int main() { union emp e = {10, 25}; printf("%d %d", e.empno, e.age); return 0; }
Options: Error: Lvalue required,    Error: Rvalue required,    Error: cannot initialize more than one union member.,    No error

Ans:C ,C


What is sent to the user via HTTP, invoked using the HTTP protocol on the user's computer, and run on the user's computer as an application?
Options: A Java application,    A Java applet,    A Java servlet,    None of the above is correct.

Ans:B ,B


The structure chart is
Options: a document of what has to be accomplished,    a statement of information processing requirement,    a hierarchical partitioning of the program,    All of the above

Ans:C ,C


The microcomputer, Intel MCS-80 is based on the widely used Intel
Options: 8080 microprocessor,    8085 microprocessor,    8086 microprocessor,    8082 microprocessor

Ans:A,(Aanswer


. You want to set such that when you type Baishakh and drag the fill handle, Excel should produce Jestha, Aashadh and so on. What will you set to effect that?
Options: a.  Custom List b.  Auto Fill Options c.  Fill Across Worksheet d.  Fill Series

Ans:– a,– a


H.P. Luhn and Stephen E. Forth developed an application for the computer named
Options: selective dissemination of information,    management information system,    information retrieval,    document retrieval

Ans:C ,C


. What are the three options available in Insert >> Picture menu?
Options: a.  Clipart, Pictures, Shapes b.  Clipart, From File, Shapes c.  Clipart, From Files, AutoShapes d.  Clipart, Pictures, AutoShapes

Ans:7 – C ,7 – C


According to ANSI specifications which is the correct way of declaring main when it receives command-line arguments?
Options: int main(int argc, char *argv[]),    int main(argc, argv) int argc; char *argv; ,    int main() { int argc; char *argv; } ,    None of above

Ans:A ,A


In a synchronous modem, the receive equalizer is known as
Options: adaptive equalizer,    impairment equalizer,    statistical equalizer,    compromise equalizer

Ans:A ,A


What will be the output of the program? #include<stdio.h> int main() { char huge *near *far *ptr1; char near *far *huge *ptr2; char far *huge *near *ptr3; printf("%d, %d, %d\n", sizeof(**ptr1), sizeof(ptr2), sizeof(*ptr3)); return 0; }
Options: 4, 4, 4,    2, 2, 2,    2, 8, 4,    2, 4, 8

Ans:A ,A


EBCDIC can code up to how many different characters?
Options: 8,    16,    32,    64

Ans:E ,E


. Comments can be added to cells using …..
Options: a. Edit -> Comments b. Insert -> Comment c. File -> Comments d. View –> Comments

Ans:– b,– b


An example of digital, rather than analog, communication is
Options: DDD,    DDS,    WATS,    DDT

Ans:B ,B


Declare the following statement? "A pointer to an array of three chars".
Options: char *ptr[3]();,    char (*ptr)*[3];,    char (*ptr[3])();,    char (*ptr)[3];

Ans:D ,D


You have a Cisco mesh network. What protocol allows multiple APs to connect with many redundant connections between nodes?
Options: LWAPP,    AWPP,    STP,    IEEE

Ans:B ,B


The computer is a part of the firm's
Options: physical system,    conceptual system,    both (a) and (b),    neither (a) nor (b)

Ans:C ,C


. Programs are executed on the basis of a priority number in a
Options: A) Batch processing system B) Multiprogramming C) Time sharing D) None of these

Ans:B,B


Job Control Language (JCL) statements are Used to
Options: Read the input from the slow-speed card reader to the high-speed magnetic disk,    Specify, to the operating system, the beginning and end of a job in a batch,    Allocate the CPU to a job,    All of the above

Ans:B ,B


. Which of the following appear in Windows menu bar?
Options: a. Help b. File c. Edit d. All of above

Ans:9 – d ,9 – d


. Which of the following is not essential to shut down your computer?
Options: a. Save all opened files b. Close all running applications c. Switch off monitor d. Cut off the power supply

Ans: c, c


An integrated circuit is
Options: A) A complicated circuit B) An integrating device C) Much costlier than a single transistor D) Fabricated on a tiny silicon chip

Ans:-D,-D


Which command is used to concatenate all files beginning with the string 'emp' and followed by a non-numeric characters?
Options: cat emp[!0-9],    more [emp][!0-9],    cat emp[x-z],    cat emp[a-z]

Ans:A ,A


Which of the following is the decimal and hexadecimal equivalents of the binary number 10011101?
Options: 155, 0x9B,    157, 0x9D,    159, 0x9F,    185, 0xB9

Ans:B ,B


Which of the following statement is false?
Options: a. Arrays are dense lists and static data structure b. data elements in linked list need not be stored in adjecent space in memory c. pointers store the next data element of a list d. linked lists are collection of the nodes that contain information part and next pointer  

Ans:c,c


The feasibilities studied in preliminary investigation is (are):
Options: technical feasibility,    economic feasibility,    operational feasibility,    All of the above

Ans:D ,D


A distributed database can use which of the following strategies?
Options: Totally centralized at one location and accessed by many sites,    Partially or totally replicated across sites,    Partitioned into segments at different sites,    All of the above

Ans:D ,D

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