What is the uses of subnetting?


Options: It divides one large network into several smaller ones B. It divides network into network classes C. It speeds up the speed of network D. None of above

Ans:– A ,






More Computer Networks Related questions:


What will be the output of the program? #include<stdio.h> int main() { float f=43.20; printf("%e, ", f); printf("%f, ", f); printf("%g", f); return 0; }
Options: 4.320000e+01, 43.200001, 43.2,    4.3, 43.22, 43.21,    4.3e, 43.20f, 43.00,    Error

Ans:A ,A


Strategic Planning factors do not include which of the following?
Options: Organizational goals,    Critical success factors,    Information engineering,    Problem areas

Ans:C ,C


Which command will be used with vi editor to insert text to left of cursor?
Options: s,    S,    a,    i

Ans:D ,D


The complete picture of data stored in database is known as
Options: Record,    Schema,    System flowchart,    DBMS

Ans:B,(Banswer


.    Which command should be used to display all files within the specified subordinate directory of the subdirectory?
Options: a.    Dir pathname b.    Dir pathnamepathname c.    Dir / ch d.    Dir pathnamefilename

Ans:.b,Correct Answer: b. Dir pathnamepathname


The person contributing the idea of the stored program was
Options: John von Neumann,    Charles Babbage,    Howard Aiken,    Basic Pascal

Ans:A,A


A PC with a 486DX2 processor runs internally at SOMhz. What speed would its external logic be running?
Options: l0Mhz,    25Mhz,    50Mhz,    100 Mhz

Ans:B ,B


Where is a hub specified in the OSI model?
Options: Session layer,    Physical layer,    Data Link layer,    Application layer

Ans:B ,B


What command is used to display the top of the file?
Options: grep,    more,    head,    cat

Ans:C ,C


Hardware _____ memory is seldom used in modern computers.
Options: ROM,    RAM,    LIFO,    PROM

Ans:C ,C


Which of the following is used to make a programs run when the computer is switched on.
Options: Autoboot,    Warmboot,    Bubble,    Authentication

Ans:A ,A


Each entity is represented as a(n):
Options: tuple.,    table.,    attribute.,    file.

Ans:B ,B


The accuracy of a pick-and-place robot can be as good as:
Options: + 0.0005 inches,    + 0.05 inches,    0.008 inches,    + 3%

Ans:A ,A


If you want to organize a file in multiple ways, it is better to _____ the data rather than to sort it.
Options: Delete,    Update,    Sort Key,    Index

Ans:D ,D


The core diameter of a single-mode fibers is about
Options: 10 times the wavelength of the light carried in the fiber,    10 times the fiber radius,    7 times the light carried in the fiber,    3 times the wavelength of the light carried in the fiber

Ans:A ,A


A customer calls and says her computer won't boot, she can hear noises and can see lights on the box, but nothing comes up on the screen, what should you take to the site to fix the problem?
Options: hard drive,    video card,    power cable,    power supply

Ans:B ,B


Which of the following in not a function of DBA?
Options: Network Maintenance B. Routine Maintenance C. Schema Definition D. Authorization for data access

Ans:– A ,


Data are allowed to be transmitted in only one direction in a:
Options: simplex channel,    dumb channel,    half-duplex channel,    full-duplex channel

Ans:A ,A


72. Microsoft Office Word is a (n) _____.
Options: a. area in the computer’s main memory in which Microsoft Office text files are stored temporarily b. program included with Windows 2000 that can be used only to create or edit text files, smaller than 64K, that do not require formatting c. classified password that prevents unauthorized users from accessing a protected Microsoft Office item or document d. full-featured word processing program that can be used to create and revise professional looking documents easily

Ans:– D ,– D


Microfilm reader is a
Options: OCR device,    COM device,    MICR device,    None of the above

Ans:B,B


The journal voucher file includes
Options: general ledger accounts involved,    date of entry,    rupees posted to each account,    All of the above

Ans:B ,B


Fact tables are which of the following?
Options: Completely denoralized,    Partially denoralized,    Completely normalized,    Partially normalized

Ans:C ,C


The function of a database is ...
Options: a. to check all input data b. to check all spelling c. to collect and organize input data d. to output data

Ans:. c ,. c


What do the following declaration signify? char *scr;
Options: scr is a pointer to pointer variable.,    scr is a function pointer.,    scr is a pointer to char.,    scr is a member of function pointer.

Ans:C ,C


Computer-based controllers:
Options: should be built in a modular fashion wherever possible,    are very difficult to change,    are very flexible,    (a) and (c) above

Ans:D ,D


. The shortcut keys for the _____ character formatting are ctrl+ shift+ plus sign.
Options: a. case of letters b. underline words, not spaces c. superscript d. all capital letters

Ans: – C , – C


What value will display if the formula = “$55.00″+5 is entered into a cell?
Options: $60 B. 60 C. “$55.00″+5 D. $60.00

Ans:– B ,


The strategy of allowing processes that are logically runnable to be temporarily suspended is called
Options: preemptive scheduling,    non preemptive scheduling,    shortest job first,    first come first served

Ans:A ,A


The short statements that represent the steps the computer needs to follow to solve a problem are called
Options: Flowcharts,    Flow diagrams,    IPO charts,    Pseudocharts

Ans:E ,E


In an Entity-Relationship Diagram “Ellipses” represents
Options: Attributes B. Weak entity set C. Relationship sets D. Multi-valued attributes

Ans:– A ,


. Which unit holds data permanently?
Options: A) Input unit B) Secondary storage unit C) Output Unit D) Primary Memory Unit

Ans:B,B


What is the storage capacity of a Hollerith card which is organized into nibbles?
Options: 32,    64,    128,    240

Ans:D ,D


. Which of the following is true regarding Referential Integrity?
Options: Every primary-key value must match a primary-key value in an associated table B. Every primary-key value must match a foreign-key value in an associated table C. Every foreign-key value must match a primary-key value in an associated table D. Every foreign-key value must match a foreign-key value in an associated table

Ans: – C ,


Point out the error in the program #include<stdio.h> int f(int a) { a > 20? return(10): return(20); } int main() { int f(int); int b; b = f(20); printf("%d\n", b); return 0; }
Options: Error: Prototype declaration,    No error,    Error: return statement cannot be used with conditional operators,    None of above

Ans:C ,C


. Which of the following function will use to find the highest number in a series of number?
Options: a. MAX(B1:B3) b. MAXIMUM (B1:B3) c. HIGH (B1:B3) d. HIGHEST(B1:B3)

Ans:– a,– a


. What are the benefits of network?
Options: a. To share hardware components b. To share information and share software c. It reduces cost d. All of above

Ans:4 – d ,4 – d


The Data flow diagram (DFD) shows;
Options: the flow of data,    the processes,    the areas where they are stored.,    All of the above

Ans:D ,D


Demodulation is the process of
Options: converting digital signals to analog signals,    converting analog signals to digital signals,    combining many low speed channels into one high speed channel,    dividing the high-speed signals into frequency bands

Ans:B ,B


Which button do you click to add up a series of numbers?
Options: a. The autosum button b. The Formula button c. The quicktotal button d. The total button

Ans:#8211; a,#8211; a


What will be the output of the program? #include<stdio.h> #include<stdarg.h> void fun(char *msg, ...); int main() { fun("IndiaBIX", 1, 4, 7, 11, 0); return 0; } void fun(char *msg, ...) { va_list ptr; int num; va_start(ptr, msg); num = va_arg(ptr, int); num = va_arg(ptr, int); printf("%d", num); }
Options: IndiaBIX 1 7 11 0,    1,    4,    7

Ans:C ,C


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


In a 1:N relationship, the foreign key is placed in:
Options: either table without specifying parent and child tables.,    the parent table.,    the child table.,    either the parent table or the child table.

Ans:C ,C


Labour standards are provided by
Options: IE time and motion study,    analysis of historical data,    both (a) and (b),    neither (a) nor (b)

Ans:C ,C


What is bytecode?
Options: Machine-specific code,    Java code,    Machine-independent code,    None of the above is correct.

Ans:C ,C


A path by which communication is achieved between a central processor and other devices is called
Options: Audit trail,    Network,    Bus,    Channel

Ans:C ,C


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


Which of the following is based on Multi Valued Dependency?
Options: a. First b. Second c. Third d. Fourth

Ans:– d ,


You get a CMOS checksum error during bootup. What is most likely the cause?
Options: power supply is bad,    BIOS needs updating,    CMOS battery is nearing end of life,    hard drive types are incorrectly defined

Ans:C ,C


The data recording area between the blank gaps on magnetic tape is called a/ an:
Options: Record,    Block,    Field,    Database

Ans:B,B


Which of the following commands is used to have a two-way communication with any person who is currently logged in?
Options: mail,    mesg,    write,    grep

Ans:C ,C

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