What do you mean by broadcasting in Networking?


Options: It means addressing a packet to all machine B. It means addressing a packet to some machine C. It means addressing a packet to a particular machine D. It means addressing a packet to except a particular machine

Ans:– A ,






More Computer Networks Related questions:


The field separator in cut command is specified with
Options: -a option,    -d option,    -r option,    -x option

Ans:B ,B


In 1830, Charles Babbage disigned a machine called the Analytical Engine which he showed at the Paris Exhibition. In which year was it exhibited?
Options: 1820,    1860,    1855,    1870

Ans:C ,C


. Charles Babbage was awarded by Royal Society for his
Options: A) Difference Engine B) Analytic Engine C) Binary System in Analytic Engine D) His concept of input, mill, output and storage

Ans:A,A


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


You need to subnet a network that has 5 subnets, each with at least 16 hosts. Which classful subnet mask would you use?
Options: 255.255.255.192,    255.255.255.224,    255.255.255.240,    255.255.255.248

Ans:B ,B


14. Which command in DOS can be used to recover accidentally deleted files?
Options: a. UNDELETE b. DELETE/CANCEL c. RESTORE d. RECOVER

Ans:Correct Answer: a ,Correct Answer: a


. Which type of command requires additional files to perform specific operations?
Options: a. Internal commands b. External commands c. Valuable commands d. Primary commands

Ans: b, b


What command do you use to create Linux file systems?
Options: fdisk,    mkfs,    fsck,    mount

Ans:B ,B


. Sleep is a good mode to use because
Options: a. It saves power which in trun is saving money b. It makes compuer fresh after it wakes up c. It consumes low battery when you start it again d. All of above

Ans:5 – a ,5 – a


When was vacuum tube invented?
Options: A) 1900 B) 1906 C) 1910 D) 1880

Ans:-B,-B


Microprocessor 8085 can address location upto  
Options: a . 32K b . 128K c . 64K d . 1M

Ans:6.c,6.c


What hole will allocates in “Worst-Fit” algorithm of memory management?
Options: It allocates the smaller hole than required memory hole B. It allocates the smallest hole from the available memory holes C. It allocates the largest hole from the available memory holes D. It allocates the exact same size memory hole

Ans: – C ,


Which values are held in CMOS for the hard drive
Options: size (heads, cylinders, sectors),    IRQ,    Free space,    Virus alert

Ans:A ,A


. Special category of Number tab in Format Cells dialog box can be used to apply formats like
Options: a. Zip Code b. Phone Number c. Both of above d. None of above

Ans:– c,– c


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


What flavor of Network Address Translation can be used to have one IP address allow many users to connect to the global Internet?
Options: NAT,    Static,    Dynamic,    PAT

Ans:D ,D


. PowerPoint presentations are widely used as
Options: a.  Note outlines for teachers b.  Project presentations by students c.  Communication of planning d.  All of above

Ans:3 – D ,3 – D


How can you disable extended selection mode?
Options: a. Press F8 again to disable b. Press Del to disable c. Press Esc to disable d. Press Enter to disable

Ans:– C,– C


Which runs on computer hardware and serve as platform for other software to run on?
Options: Operating System B. Application Software C. System Software D. All

Ans:– A ,


. “Ctrl + Delete” is used to
Options: Delete the word just after the cursor B. Delete the word just before the cursor         C. Delete the single letter just after the cursor D. Delete the single letter just before the cursor

Ans:– A ,


Which was the most popular first generation computer?
Options: A) IBM 1650 B) IBM 360 C) IBM 1130 D) IBM 2700

Ans:-A,-A


. ___ is a compromise mode between Shut Down and Sleep mode because it does not consume power and remembers the current state of your desktop
Options: a. Shut Down b. Restart c. Sleep d. Hibernate

Ans:3 – d ,3 – d


61. In Word you can force a page break
Options: a. By positioning your cursor at the appropriate place and pressing the F1 key b. By using the Insert/Section break on the Insert tab c. By positioning your cursor at the appropriate place and pressing Ctrl+Enter d. By changing the font size of your document

Ans:– C ,– C


When did Hewlett-Packard Inc. Introduce its first HP-110 laptop computer?
Options: 1984,    1986,    1990,    1995

Ans:A ,A


Which of the following could cause data to be unavailable?
Options: Data becoming lost or inaccurate,    The database server,    Planned database maintenance activities,    All of the above.

Ans:D ,D


The DBMS acts as an interface between what two components of an enterprise-class database system?
Options: Database application and the database,    Data and the database,    The user and the database application,    Database application and SQL

Ans:A ,A


Home Key
Options: a. Moves the cursor beginning of the document b. Moves the cursor beginning of the paragraph c. Moves the cursor beginning of the screen d. Moves the cursor beginning of the line

Ans:–  D,–  D


. Which characteristic of computer distinguishes it from electronic calculators?

Options: A) Accuracy B) Storage C) Versatility D) Automatic

Ans:C,C


. What happens if you mark on Hidden check box of Font dialog box after you select some text?
Options: a. The text is deleted from document and you need to bring from Recycle Bin if required again. b. The text is hidden and you need to bring it by removing the check box if needed again c. The text is deleted and cannot be returned back d. The text is hidden and cannot be returned back

Ans: – B , – B


If you want to insert some slides from other presentation into current one choose
Options: a. From Insert menu choose Slides from Files b. From Insert menu choose Slides from Presentation c. From Insert menu choose Slides d. None of above

Ans: – A , – A


What is the output of the program? #include<stdio.h> int main() { extern int a; printf("%d\n", a); return 0; } int a=20;
Options: 20,    0,    Garbage Value,    Error

Ans:A ,A


Assume integer is 2 bytes wide. What will be the output of the following code? #include<stdio.h> #include<stdlib.h> #define MAXROW 3 #define MAXCOL 4 int main() { int (*p)[MAXCOL]; p = (int (*) [MAXCOL])malloc(MAXROW *sizeof(*p)); printf("%d, %d\n", sizeof(p), sizeof(*p)); return 0; }
Options: 2, 8,    4, 16,    8, 24,    16, 32

Ans:A ,A


Documentation is prepared
Options: at every stage,    at system design,    at system analysis,    at system development

Ans:A ,A


Control Unit of a digital computer is often called the
Options: Clock,    Nerve center,    ICs,    All of the above

Ans:B,B


Who launched IBM's First PC in 1981?
Options: Dean Cline,    C.B. Rogers Jr.,    John F. Akers,    David Svenson

Ans:B ,B


Which programming language is based on Algol 60.
Options: PILOT,    SNOBOL,    ADA,    SIMULA

Ans:D ,D


A turnaround document can be a (n)
Options: punched card,    OCR document,    both (a) and (b),    neither (a) nor (b)

Ans:C ,C


What is the significance of the J and K terminals on the J-K flip-flop?
Options: There is no known significance in their designations.,    The J represents "jump," which is how the Q output reacts whenever the clock goes HIGH and the J input is also HIGH.,    The letters represent the initials of Johnson and King, the co-inventors of the J-K flip-flop.,    All of the other letters of the alphabet are already in use.

Ans:A ,A


The problem of thrashing is affected significantly by:
Options: program structure,    program size,    primary-storage size,    all of the above

Ans:A ,A


Indicate whether the statement LDA B is a statement, in
Options: Machine language,    Assembly language,    High level language,    All of the above

Ans:B ,B


In MS Word, Ctrl+S is for …..
Options: Scenarios B. Size C. Save D. Spelling Check

Ans:– C ,


. Search engines use a(n) __________ to automatically index sites.
Options: a. crawler b. query c. enterprise d. sitebuilder

Ans:1 – a ,1 – a


Scheduling is
Options: allowing jobs to use the processor,    unrelated to performance consideration,    not required in uniprocessor systems,    the same regard-less of the purpose of the system

Ans:A ,A


The two main components of the CPU is
Options: Control unit and registers,    Control unit and ALU,    Registers and main memory,    ALU and bus

Ans:B ,B


The probability that a single bit will be in error on a typical public telephone line using 4800 bps modem is 10 to the power -3. If no error detection mechanism is used, the residual error rate for a communication line using 9-bit frames is approximately equal to
Options: 0.003,    0.009,    0.991,    0.999

Ans:B ,B


. The Name box on to the left of formula bar
Options: a.  shows the name of workbook currently working on b.  shows the name of worksheet currently working on c.  shows the name of cell or range currently working on d.  None of above

Ans:– c,– c


hat is the shortcut key to split a table?
Options: Ctrl + Alt + Enter B. Ctrl + Shift + Enter C. Alt + Shift + Enter D. Alt + Space + Enter

Ans:– B ,


What will be the output of the program? #include<stdio.h> #define MAX(a, b) (a > b ? a : b) int main() { int x; x = MAX(3+2, 2+7); printf("%d\n", x); return 0; }
Options: 8,    9,    6,    5

Ans:B ,B


The network address of 172.16.0.0/19 provides how many subnets and hosts?
Options: 7 subnets, 30 hosts each,    8 subnets, 8,190 hosts each,    8 subnets, 2,046 hosts each,    7 subnets, 2,046 hosts each

Ans:B ,B


Which of the following is a group of one or more attributes that uniquely identifies a row?
Options: Key,    Determinant,    Tuple,    Relation

Ans:A ,A

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