What does protocol defines?


Options: Protocol defines what data is communicated. B. Protocol defines how data is communicated. C. Protocol defines when data is communicated. D. All of above

Ans:– D ,


Description: mcqquestions






More Computer Networks Related questions:


After upgrading your computer to a new DOS version, an older application displays the error message "Incorrect DOS version". What should you do to run this application?
Options: Use the DOS+ command,    Use the SETVER command,    Restore the old DOS version,    Contact the application's vendor support line

Ans:B ,B


After entering all fields required for a table, if you realize that the third field is not needed, how will you remove?
Options: a. You need to delete the whole tablThere is no method to remove a particular field only. b. Delete all the fields from third downwards and reenter the required fields again. c. Select the third column in datasheet view then  Delete d. Select the third row in table design view then Delete

Ans:ndash; d,ndash; d


Software instructions intended to satisfy a user's specific processing needs are called _____.
Options: Systems software,    A microcomputer,    Documentation,    Applications software

Ans:D ,D


. Pre-made sheet formats like Simple, Classic, Accounting, Colorful et can be applied from
Options: a. from Fromat >> Cells b. from Format >> Autoformat c. from Table >> Autoformat d. All of above

Ans:– b,– b


Which company is the biggest player in the microprocessor industry?
Options: Motorola,    IBM,    Intel,    AMD

Ans:C ,C


John Napier invented Logarithm in
Options: A) 1614 B) 1617 C) 1620 D) None of above

Ans:-A,-A


Which is not necessary when using bar codes in supermarkets?
Options: Point-of sale (POS) terminal,    Check digit on the bar code,    Price on the shelf,    Price on the goods

Ans:C ,C


What is the shortcut key to “Insert Hyperlink ” in a document?
Options: Ctrl + H B. Ctrl + L C. Ctrl + K D. None of above

Ans:– C ,


. Which of the following database object hold data?
Options: a. Forms b. Reports c. Queries d. Tables

Ans:3 – d ,3 – d


Error rate is
Options: an error-detecting code based on a summation operation performed on the bits to be checked.,    a check bit appended to an array of binary digits to make the sum of all the binary digits.,    a code in which each expression conforms to specific rules of construction, so that if certain errors occur in an expression, the resulting expression will not conform to the rules of construction and thus the presence of the errors is detected.,    the ratio of the number of data units in error to the total number of data units

Ans:D ,D


What command is used with vi editor to save file and remain in the editing mode?
Options: x,    q!,    :w,    :q

Ans:C ,C


You have your laptop directly connected into a router's Ethernet port. Which of the following are among the requirements for the copy flash tftp command to be successful? TFTP server software must be running on the router. TFTP server software must be running on your laptop. The Ethernet cable connecting the laptop directly into the router's Ethernet port must be a straight-through cable. The laptop must be on the same subnet as the router's Ethernet interface. The copy flash tftp command must be supplied the IP address of the laptop.
Options: 1, 3 and 4,    2, 4 and 5,    3 and 5 only,    5 only

Ans:B ,B


A typical modern computer uses
Options: LSI chips,    Vacuum tubes,    Valves,    All the above

Ans:A ,A


The command center of  access file that appears when you create or open the MS Access database file.
Options: a. Database Window b. Query Window c. Design View Window d. Switchboard

Ans:ndash; a,ndash; a


When installing a SCSI CD-ROM drive, you must set the CD-ROM SCSI adapter to:
Options: B0007,    An unused SCSI address,    The same address as the SCSI device before the CD-ROM,    SCSI ID=1

Ans:B ,B


What will be the output of the program ? #include<stdio.h> int main() { struct byte { int one:1; }; struct byte var = {1}; printf("%d\n", var.one); return 0; }
Options: 1,    -1,    0,    Error

Ans:B ,B


. In Access 2007, to set a table to open as a document tab, you need to go to the ____.
Options: a. Microsoft Office button b. Navigation Pane c. Quick Access toolbar d. Database Tools command tab

Ans:5 – a ,5 – a


Trend analysis:
Options: is used only in financial planning,    can improve control system response,    requires a very expensive system to implement,    is a brand new concept

Ans:B ,B


What will be the output of the program? #include<stdio.h> #define SQR(x)(x*x) int main() { int a, b=3; a = SQR(b+2); printf("%d\n", a); return 0; }
Options: 25,    11,    Error,    Garbage value

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


You can quickly change the appearance of your work by choosing Auto Format from the …. Menu
Options: a. Edit b. View c. Format d. Tools

Ans:– c,– c


The term TSR is an abbreviation for:
Options: Terminate Stay Ready,    Testing System Read,    Terminal Still Ready,    Terminate Stay Resident

Ans:D ,D


To duplicate a controls formatting you can use___
Options: a. Manager b. Wizard c. Painter d. Control

Ans:ndash; c,ndash; c


A character that is raised and smaller above the baseline is known as
Options:  A) Outlined, B) Raised, C) Superscript, D) Subscript,

Ans:-C,-C


Which of the following is true about pseudocode
Options: A machine language,    An assembly language,    A high-level language,    All of the above

Ans:E ,E


Which command is used to change protection mode of files starting with the string emp and ending with 1,2, or 3?
Options: chmod u+x emp[1-3],    chmod 777 emp*,    chmod u+r ??? emp,    chmod 222 emp?

Ans:A ,A


Declare the following statement? "A pointer to a function which receives an int pointer and returns float pointer".
Options: float *(ptr)*int;,    float *(*ptr)(int),    float *(*ptr)(int*),    float (*ptr)(int)

Ans:C ,C


A characteristic of a multiprogramming system is:
Options: simultaneous execution of program instructions from two applications,    concurrent processing of two or more programs,    multiple CPUs,    All the above

Ans:B ,B


Duplicate data often results in loss of data integrity because:
Options: the data formats may be inconsistent.,    data values may not agree.,    Both A & B.,    Neither A & B.

Ans:C ,C


Which of the following columns is(are) are required in a table?
Options: A foreign key,    An alternate key,    A primary key,    A surrogate key.

Ans:C ,C


Part of a program where the shared memory is accessed and which should be executed invisibly, is called
Options: semaphores,    directory,    critical section,    mutual exclusion

Ans:C ,C


A microprocessor integrates the arithmetic logic and control circuitry of a computer into one chip. The first microprocessor was built by a group of engineers at the Intel Corpn. Can you tell who headed this group?
Options: Victor Poor,    Stan Mazor,    Marcian E. (Ted) Hoff,    Seymour Cray

Ans:C ,C


Suppose that the power lamp in on, but the printer will not print. What can you do to correct the problem?
Options: Make sure the printer is on line,    Replace the AC line fuse,    Turn the printer on and off,    Replace the ribbon

Ans:A ,A


. To exit the PowerPoint application, you should
Options: a. Click the application minimize button b. Click the document close button c. Double click the application control menu icon d. Double click the document control menu icon

Ans:3 – C ,3 – C


Computers with 80286 microprocessor is
Options: A) XT computer B) AT comptuers C) PS/2 computer D) None of above

Ans:-B,-B


. Which command is not an internal command?
Options: a. Dir b. Edit c. CD d. CLS

Ans:2 – b ,2 – b


A memory space used for the temporary storage of data is
Options: PROM,    SAM,    Scratchpad storage,    Buffer

Ans:C ,C


Which of the following data structure is not linear data structure?
Options: a. Arrays b. Linked lists c. Both of above d. None of above  

Ans:d,d


What is the process lag?
Options: The time it takes for the sensor to respond to a changed.,    The lag in the error signal when the setpoint is changed.,    The time it takes for the mass of the process to respond to an input change.,    All of the above

Ans:C ,C


Plotter accuracy is measured in terms of repeatability and:
Options: intelligence,    vertical dimension,    resolution,    buffer size

Ans:C ,C


The word 'Computer' usually refers to the Central Processor Unit plus
Options: External memory,    Internal memory,    Input devices,    Output devices

Ans:B ,B


With an IP address set starting with 150, you currently have six offices that you are treating as subnets. Plans are in place to open 10 more offices before the end of the year. What subnet mask should you use to satisfy the needed number of subnets and maximize the number of hosts available at each site?
Options: 192,    224,    240,    248

Ans:D ,D


. Which command will you use in PowerPoint if you need to change the color of different objects without changing content?
Options: a.  Design Template b.  Color Scheme c.  Font Color d.  Object Color

Ans:2 – B ,2 – B


. CD-ROM stands for
Options: A) Compactable Read Only Memory B) Compact Data Read Only Memory C) Compactable Disk Read Only Memory D) Compact Disk Read Only Memory

Ans:D,D


Location transparency allows for which of the following?
Options: Users to treat the data as if it is at one location,    Programmers to treat the data as if it is at one location,    Managers to treat the data as if it is at one location,    All of the above.

Ans:D ,D


. It is the default folder for many Windows Applications to save your file
Options: a. My Document b. My Pictures c. Documents and Settings d. My Computer

Ans:7 – a ,7 – a


Point out the correct statement which correctly allocates memory dynamically for 2D array following program? #include<stdio.h> #include<stdlib.h> int main() { int *p, i, j; /* Add statement here */ for(i=0; i<3; i++) { for(j=0; j<4; j++) { p[i*4+j] = i; printf("%d", p[i*4+j]); } } return 0; }
Options: p = (int*) malloc(3, 4);,    p = (int*) malloc(3*sizeof(int));,    p = malloc(3*4*sizeof(int));,    p = (int*) malloc(3*4*sizeof(int));

Ans:D ,D


Which of the following Language that Computer can Understand & Execute?
Options: A. Machine Language B. C Programming Language C. Java Programming Language D. None of the Above

Ans:A,


Which of the following do you need to consider when you make a table in SQL?
Options: Data types,    Primary keys,    Default values,    All of the above.

Ans:D ,D


What is the name of the computer program that simulates the thought processes of human beings?
Options: Human logic,    Expert reason,    Expert system,    Personal information

Ans:C ,C

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