Which of the following is correct in VLSM?


Options: Can have subnets of different sizes B. Subnets must be in same size             C. No required of subnet D. All of above

Ans:– A ,


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More Computer Networks Related questions:


Which one of the following statements most accurately reflects the nature of ac power?
Options: The current in an ac circuit flows in one direction, but changes value periodically,    The current in an ac circuit flows in one direction at a steady level,    The current in an ac circuit changes direction periodically,    The current in an ac circuit flows in two directions at the same time

Ans:C ,C


The SKETCHPAD system
Options: consisted of an cathode-ray oscilloscope driven by a Lincoln Tx2 computer where by graphical information was displayed on the screen.,    is used for interactive Graphics,    is expensive because it is sophisticated and make demands on the power and resources of the computer.,    All of the above

Ans:D ,D


Which kind of devices allows the user to add components and capabilities to a computer system?
Options: System boards,    Expansion slots,    Input devices,    Output devices

Ans:B,Expansion slots


Pressure sensors:
Options: use the piezoresistive effect in strain gauge sensors,    use an aneroid chamber with a variable resistance output,    use capacitive variations to sense pressure,    All of the above

Ans:D ,D


A program language:
Options: defines the form of the instruction,    is always machine dependent,    is never machine dependent,    All of the above

Ans:A ,A


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


Which option in File pull-down menu is used to close a file in MSWord?
Options: New B. Quit C. Close D. Exit

Ans:– C ,


Who developed the first personal computer spreadsheet package called Visicalc?
Options: Niklaus Wirth,    Dan Bricklin,    Bob Frankston,    both (b) and (c)

Ans:D ,D


The Thevenin resistance is equal in value to the
Options: Load resistance,    Half the load resistance,    Internal resistance of a Morton circuit,    Open-load resistance

Ans:A ,A


. Which of the following is not an operating system?
Options: a. DOS b. Linux c. Windows d. Oracle

Ans: d, d


A data dictionary doesn't provide information about:
Options: where data is located,    the size of the disk storage device,    It allows a many-to-many relationship,    It is conceptually simple

Ans:B ,B


. A set of rods where numbers were carved and used for multiplication and division aids is known as

Options: A) Pascaline B) Napier’s Bones C) Stepped Reckoner D) Slide Rule

Ans:B,B


    If you don’t know the current time, which command will you use to display
Options: a.    Copy b.    Ver c.    Time d.    Format

Ans:.a,Correct Answer: c. Time


The total number of messages handled by a computerized telephone system on a daily basis is an example of:
Options: Frequency,    Updating,    Volume,    All of the above

Ans:C ,C


What file specifies the order in which to use specified name services?
Options: /etc/services,    /etc/nsorder,    /etc/nsswitch.conf,    /etc/hosts

Ans:C ,C


For some relations, changing the data can have undesirable consequences called:
Options: referential integrity constraints.,    modification anomalies.,    normal forms.,    transitive dependencies.

Ans:B ,B


What will be the output of the program ? #include<stdio.h> int main() { union a { int i; char ch[2]; }; union a u; u.ch[0]=3; u.ch[1]=2; printf("%d, %d, %d\n", u.ch[0], u.ch[1], u.i); return 0; }
Options: 3, 2, 515,    515, 2, 3,    3, 2, 5,    515, 515, 4

Ans:A ,A


. A group of magnetic tapes, videos or terminals usually under the control of one master is
Options: A) Cylinder B) Surface C) Track D) Cluster

Ans:D,D


Silicon atoms combine into an orderly pattern called a
Options: Crystal,    Covalent bond,    Semiconductor,    Valence orbit

Ans:A ,A


The most popular language for interactive use is
Options: COBOL,    PASCAL,    BASIC,    FORTRAN

Ans:C ,C


A set of information that defines the status of resources allocated to a process is
Options: A) Process control B) ALU C) Register Unit D) Process description

Ans:-D,-D


. Which query do you use to answer the question “Which employees earn more than $5000 a month”?
Options: a. Search query b. Cross tab query c. Select query d. Update query

Ans:– c,– c


How many ALU(s) is/are control by one control unit is SIMD (single instruction stream, multiple data stream) architecture?
Options: one or more ALUs,    One ALU,    Only two ALU .,    Impossible to say

Ans:A ,A


Pipelining strategy is called implement
Options: a . instruction execution b . instruction prefetch c . instruction decoding d . instruction manipulation

Ans:5.b,5.b


    While working with Ms-Dos which command transfers a specific file from one disk to another?
Options: a.    Copy b.    Diskcopy c.    Time d.    Rename

Ans:.c,Correct Answer: a. Copy


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 is not a valid size of a Floppy Disk?
Options: A) 8? B) 5 ¼? C) 3 ½? D) 5 ½?

Ans:D,D


The procedure for evaluating the relative performance of different computers, is done by the process called
Options: batch processing,    sequential processing,    bench marking,    All of the above

Ans:C ,C


A computer program that contains expertise in a particular domain is called an:
Options: intelligent planner,    automatic processor,    expert system,    operational symbolizer

Ans:C ,C


The microprocessor of a computer cannot operate on any information if that information is not in its.
Options: secondary storage,    main storage,    ALU,    logic unit

Ans:B ,B


What is the typical range of Ephemeral ports?
Options: 1 to 80 B. 1 to 1024 C. 80 to 8080 D. 1024 to 65535

Ans: D ,D. 1024 to 65535


Background color or effects applied on a document is not visible in
Options:  A) Web layout view, B) Print Layout view, C) Reading View, D) Print Preview, 

Ans:-D,-D


The integrated circuit was invented by Jack Kilby of:
Options: MIT,    Texas Instruments,    Xerox,    All of the above

Ans:B ,B


. FORTRAN is
Options: A) File Translation B) Format Translation C) Formula Translation D) Floppy Translation

Ans:8-C,8-C


Computer instructions written with the use of English words instead of binary machine code is called
Options: Mnemonics,    Symbolic code,    Gray code,    Op-code

Ans:B,B


The institute for Certification of Computer Professionals (ICCP) currently administers the Certificate in Computer Programming (CCP) and the _____ examinations.
Options: CDP,    CISA,    DPMA,    ACM

Ans:A ,A


Is there any difference between following declarations? 1 : extern int fun(); 2 : int fun();
Options: Both are identical,    No difference, except extern int fun(); is probably in another file,    int fun(); is overrided with extern int fun();,    None of these

Ans:B ,B


. Which is not an option for customizing a datasheet window?
Options: a. change one row’s height b. hide one column c. change one column’s width d. freeze one column

Ans:– a,– a


. Which Disk Format can access by MS-Dos 6.0?
Options: OSX B. FAT C. NTFS D. EXT2

Ans:– B ,


The transmission signal coding method of TI carrier is called
Options: Bipolar,    NRZ,    Manchester,    Binary

Ans:A ,A


Bus is
Options: one or more conductors that some as a common connection for a related group of devices,    a continuous frequency capable of being modulated or impressed with a second signal,    the condition when two or more stations attempt to use the same channel at the same time,    a collection of interconnected functional units that provides a data communications service among stations attached to the network

Ans:A ,A


Which of the following series of commands will restrict Telnet access to the router?
Options: Lab_A(config)#access-list 10 permit 172.16.1.1 Lab_A(config)#line con 0 Lab_A(config-line)#ip access-group 10 in,    Lab_A(config)#access-list 10 permit 172.16.1.1 Lab_A(config)#line vty 0 4 Lab_A(config-line)#access-class 10 out,    Lab_A(config)#access-list 10 permit 172.16.1.1 Lab_A(config)#line vty 0 4 Lab_A(config-line)#access-class 10 in,    Lab_A(config)#access-list 10 permit 172.16.1.1 Lab_A(config)#line vty 0 4 Lab_A(config-line)#ip access-group 10 in

Ans:C ,C


A large computer information system maintains many different computer files. Which amongst them is called a perpetual file?
Options: Specialized file,    Log file,    Master file,    Update file

Ans:C ,C


. On the property sheet, which of the following tabs contains the Caption property?
Options: a. Data b. Event c. Format d. Other

Ans:– c,– c


. To remove the content of selected cells you must issue ______ command
Options: a.  Edit >> Delete b.  Edit >> Clear >> Contents c.  Edit >> Clear >> All d.  Data >> Delete

Ans:– b,– b


52. Ctrl + B
Options: a. Search the selected text b. Paste the selected text c. Bold the selected text d. Open the specified file

Ans:–  C ,–  C


Which company produces processors for the Apple Macintosh?
Options: IBM,    Motorola,    Intel,    AMD

Ans:B ,B


The cell reference for cell range of G2 to M12 is_
Options: A. G2.M12, B. G2;M12, C. G2:M12 ,D. G2-M12

Ans:C ,G2:M12


The LRU algorithm
Options: pages out pages that have been used recently,    pages out pages that have not been used recently,    pages out pages that have been least used recently,    pages out the first page in a given area

Ans:C ,C


A variable that has no physical meaning and is used to obtain an initial basic feasible solution to a linear programming problem is known as:
Options: basis,    algorithm,    artificial variable,    basic variable

Ans:D ,D

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