Switches operates in which layer of the OSI model?


Options: Physical layer B. Data link layer C. Network layer D. Transport layer

Ans:B,Data link layer






More Computer Networks Related questions:


. A normal CD-ROM usually can store up to __________data?
Options: A) 680 KB B) 680 Bytes C) 680 MB D) 680 GB

Ans:C,C


. When we double click on my computer
Options: a. Show the content of your saved files b. Show the list of your computer drive c. List of deleted files and folders d. All of the above

Ans:0 – b ,0 – b


. In maximum, how many sheets can be set as default while creating new workbook? 
Options: a. 254 b. 255 c. 256 d. No Limit

Ans:– b,– b


. From where you can access Save command?
Options: a. Home tab b. Insert tab c. Review tab d. None of above

Ans:– D,– D


. How to insert Tables in Slide?
Options: a. Insert Table from Insert menu b. Click on Insert Table in content pane of blank slide c. Option A & B d. Tables cannot be inserted in slides

Ans:4 – C ,4 – C


A heterogeneous distributed database is which of the following?
Options: The same DBMS is used at each location and data are not distributed across all nodes.,    The same DBMS is used at each location and data are distributed across all nodes.,    A different DBMS is used at each location and data are not distributed across all nodes.,    A different DBMS is used at each location and data are distributed across all nodes.

Ans:D ,D


Which of the following symbols is (are) not the Data Flow Diagram (DFD):
Options: a square,    an open rectangle,    a circle,    a triangle

Ans:D ,D


UNIVAC is
Options: A) Universal Automatic Computer B) Universal Array Computer C) Unique Automatic Computer D) Unvalued Automatic Computer

Ans:A,A


All Operating Systems get their total memory initialized from?
Options: CPU,    BIOS,    ROM,    RAM

Ans:B ,B


Which of the following term is least related to database?
Options: a. Attributes b. Tuples c. Relationship d. Columns

Ans:ndash; d,ndash; d


Which of the following conditions is used to transmit two packets over a medium at the same time?
Options: Contention,    Collision,    Synchronous,    Asynchronous

Ans:B ,B


Which one of the following devices is most often used for measuring opposition to current flow in a circuit?
Options: Ammeter,    Voltmeter,    Ohmmeter,    Wattmeter

Ans:C ,C


.  In a module, a(n) _______ is a series of commands and properties that perform a specific task.
Options: a.            event b.           property c.           procedure d.            macro

Ans:– c,– c


A database object in MS Access that stores a question about the data in database?
Options: a. Table b. Form c. Query d. Report

Ans:ndash; c,ndash; c


A large computer designed to handle complex scientific calculations
Options: may use only a firmed word-length storage approach,    will likely require a character addressable storage unit,    must use fixed length words of four character each,    will not use numbered address locations

Ans:A ,A


. A bar that inform you the available options in your computer, opened applications, background running applications and can be used to switch between applications quickly is
Options: a. Menu bar b. Tool bar c. Status bar d. Task bar

Ans: d, d


What command is not used to list the files chap01, chap02 and chap04?
Options: ls chap*,    ls chap[124],    ls - x chap0[124],    ls chap0[124]

Ans:B ,B


. The Cancel and Enter buttons appear in the:
Options: a. Title bar b. Formula bar c. Menu bar d. Sheet tabs

Ans:– b,– b


. When was the company named IBM?
Options: A) 1914 B) 1924 C) 1975 D) None of above

Ans:7-B,7-B


What protocol(s) is(are) allowed a user to retrieve her/his mail from the mail server to her/his mail reader?
Options: POP3,    FTP,    MAP,    All of the above

Ans:A ,A


When did IBM release the first version of disk operating system DOS version 1.0?
Options: 1981,    1982,    1983,    1984

Ans:A ,A


A database application can perform which of the following activities?
Options: Add records,    Read records,    Update records,    All of the above.

Ans:D ,D


In comparison to the internal (main) memory, tape or disk memory is
Options: slower and more expensive,    slower and less expensive,    faster and more expensive,    faster and less expensive

Ans:B ,B


. Which of the following statements about calculated fields is NOT true?
Options: a. A calculated field does not store data in a recordset. b. Calculated fields use an expression or formula as its data source. c. Data contained in a calculated field is created the first time a query is run. d. A calculated field can be created using the Expression Builder dialog box.

Ans:2 – c ,2 – c


Hard disks and diskettes are:
Options: Direct access storage devices,    Sequential access storage devices,    Rarely used with microcomputers,    Both (a) and (c)

Ans:A ,A


. Which key do you press to check spelling?
Options: a. F3 b. F5 c. F7 d. F9

Ans:– c,– c


. What produces useful information out of data?
Options: A) Computer B) Processing C) Programming D) none of above

Ans:B,B


A smart solid-state sensor is:
Options: one that integrates both logic and a solid-state sensor into one unit.,    one that has two or three substrates,    not available today,    All of the above

Ans:A ,A


An input device that converts data punched into paper lape into a binary format is
Options: Page reader,    Paper tape punch,    Paper tape reader,    Card punch

Ans:C ,C


Indicate which is a pre-emptive scheduling algorithm
Options: Round-robin,    Shortest-job-next,    Priority-based,    All of the above

Ans:A ,A


A person who has a high-school diploma would be least likely to obtain which of the following jobs?
Options: data-entry operator,    librarian,    computer operator,    programmer

Ans:D ,D


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

Ans:B ,B


The Primary job of the operating system is A)  Manage Commands B)  Manage Users         C)  Manage Programs D)  Manage Resources
Options:

Ans:– D ,


Which 32-bit microprocessor is used in IBM's PS/2 model-80 computer?
Options: 8088,    80286,    80386,    80486

Ans:C,C


_____ formatting is the process of changing the way letters, numbers, punctuation marks, and symbols appear on the screen and in print.
Options: a. Document b. Character c. Paragraph d. Object

Ans:– B,– B


Which of the following is not a font style?
Options: a. Bold b. Italics c. Regular d. Superscript

Ans:– D,– D


In an absolute loading scheme, which loader function is accomplished by assembler.
Options: Reallocation,    Allocation,    Linking,    Loading

Ans:A ,A


. When you link data maintained in Excel workbook to a Word document
Options: a. The Word document cannot be edited b. The Word document contains a reference to the original source application c. The word document must contain a hyperlink d. The word document contains a copy of the actual data

Ans:– b,– b


Which of the following usually receives formal education on their role in the MIS
Options: government,    stockholders,    both (a) and (b),    neither (a) nor (b)

Ans:D ,D


Which command is used with vi editor to move cursor forward to first occurrence of character 'ch' in the current line?
Options: tch,    fch,    rch,    ech

Ans:B ,B


Which JDBC driver Type(s) can you use in a three-tier architecture and if the Web server and the DBMS are running on the same machine?
Options: Type 1 only,    Type 2 only,    Both Type 3 and Type 4,    All of Type 1, Type 2, Type 3 and Type 4

Ans:D ,D


The area of coverage of a satellite radio beam is known as
Options: Footprint,    Circular polarization,    Beam width,    Identity

Ans:A ,A


What will be the output of the program? #include<stdio.h> #include<math.h> int main() { float i = 2.5; printf("%f, %d", floor(i), ceil(i)); return 0; }
Options: 2, 3,    2.000000, 3,    2.000000, 0,    2, 0

Ans:C ,C


Dirty read, nonrepeatable, and phantom reads are not possible in this instance.
Options: Read committed,    Read uncommitted,    Repeatable read,    Serializable

Ans:D ,D


When an entity instance may be a member of multiple subtypes or it does not have to be a member of a subtype, it is which of the following?
Options: Disjoint with total specialization,    Disjoint with partial specialization,    Overlap with total specialization,    Overlap with partial specialization

Ans:C ,C


Which of the following is the latest version of MS Word?
Options:  A) Word 2000, B) Word 2007, C) Word 2010, D) Word 2011, 

Ans:-C,-C


. Which of the following commands should you always use before submitting a document to others?
Options: a. find command b. Replace command c. Spelling and Grammar d. Thesaurus

Ans:–  C,–  C


Who is credited with the idea of using punch cards to control patterns in a weaving machine?
Options: Pascal,    Hollerith,    Babbage,    jacquard

Ans:D ,D


Point out the error in the program? struct emp { int ecode; struct emp e; };
Options: Error: in structure declaration,    Linker Error,    No Error,    None of above

Ans:A ,A


Data can be arranged in a worksheet in a easy to understand manner using
Options: a. auto formatting b. applying styles c. changing fonts d. all of above

Ans:#8211; d,#8211; d

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