Which of the following is Relation-algebra Operation


Options: Select B. Union C. Rename D. All of the above

Ans:– D ,


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More Database Systems Related questions:


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

Ans:A,A


Which of the following is program group?
Options: a. Accessories b. Paint c. Word d. All of above

Ans:a,a


Which of the following button will allow you to add, delete, or change records in your Data Source?
Options:  A) ‘Data Source’ button, B) ‘Edit’ button, C) ‘Edit Data Source’ button, D) ‘Data editing’ button,

Ans:-C,-C


  Which key do you press to check spelling?
Options: F3 B. F5    C. F7 D. F9

Ans:– C ,


In analog computer
Options: Input is first converted to digital form,    Input is never converted to digital form,    Output is displayed in digital form,    All of the above

Ans:B ,B


Slide show options available to the presenter include all of the following except
Options: a. Transitions command b. Speaker notes command c. Meeting reminder command d. Navigation commands

Ans: – A , – A


Which of the following is not a primary reason for the popularity of decision support systems?
Options: declining cost of computer hardware,    advent of data-base management systems,    increased number of programmers,    management trained in analytic techniques

Ans:C ,C


. What PowerPoint feature will you use to apply motion effects to different objects of a slide?
Options: a.  Slide Transition b.  Slide Design c.  Animation Objects d.  Animation Scheme

Ans:3 – D ,3 – D


Which of the following is the address of the router?
Options: The IP address,    The TCP address,    The subnet mask,    The default gateway

Ans:D ,D


Which of the following is form of semi conductor memory in which it is possible to change the contents of selected memory locations by applying suitable electrical signals.
Options: CAM,    ROM,    EAROM,    ANACUS

Ans:C ,C


A _____ provides a set of integrated computer tools that allow a decision maker to interact directly with computers in order to retrieve information useful for semistructured and unstructured decisions,
Options: DDS,    DBMS,    MIS,    Control

Ans:A ,A


Intranets and extranets can use their network fire walls and other security features to establish secure Internet links within an enterprise or with its trading partners. Select the best fit for answer:
Options: Network Server,    Virtual Private Network,    Network operating system,    OSI

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


Which of the following are integrity controls that a DBMS may support?
Options: Assume a default value in a field unless a user enters a value for that field.,    Limit the set of permissible values that a field may assume.,    Limit the use of null values in some fields.,    All of the above.

Ans:D ,D


On a class C network with a subnet mask of 192, how many subnets are available?
Options: 254,    62,    30,    2

Ans:D,2


. Signals can be analog or digital and a computer that processes the both type of signals is known as
Options: A) Analog computer B) Digital Computer C) Hybrid Computer D) Mainframe Computer

Ans:C,C


You are testing the resistance in Ohms of a fuse on a 15K amp system. If the fuse is good, the meter should read?
Options: 0.0,    0.2,    5.0,    2.0

Ans:A ,A


Prior to the invention of time sharing, the prevalent method of computer access was:
Options: batch processing,    telecommunication,    remote access,    All of the above

Ans:A ,A


The minimum time delay required between the initiation of two successive memory operations is known as
Options: memory cycle time,    memory access time,    transmission time,    waiting time

Ans:A ,A


An information processor includes
Options: the data base and the model base,    the central processing unit,    incoming data and outgoing information,    incoming data, the central processing unit, the model base, outgoing information, and the data base

Ans:D ,D


Which of the following characteristics is not true of NetBEUI?
Options: Highly-customizable,    Routable,    Little configuration required,    Fast for small networks to Self-tuning

Ans:B ,B


Which of the following data structures are indexed structures?
Options: a. linear arrays b. linked lists c. both of above d. none of above

Ans: a, a


. The column command is located on the _____ tab.
Options: a. Insert b. Home c. View d. Page Layout

Ans: – D , – D


Which of the following are types of flow control? Buffering Cut-through Windowing Congestion avoidance
Options: 1 and 2,    1, 3 and 4,    2 only,    3 only

Ans:B ,B


The _____ is a business-oriented data-processing association which publishes a monthly journal, Data Management.
Options: DPMA,    CDP,    CISA,    ACM

Ans:A ,A


Sequential organization
Options: means storing records in contiguous blocks according to a key.,    Stores records sequentially but uses an index to locate records,    uses an index for each key type,    has records placed randomly throughout the file

Ans:A ,A


The main difference between synchronous and asynchronous transmission is
Options: the clocking is derived from the data in synchronous transmission,    the clocking is mixed with the data in asynchronous transmission,    the pulse height is different.,    the bandwidth required is different

Ans:A ,A


What does a VLAN do?
Options: Acts as the fastest port to all servers.,    Provides multiple collision domains on one switch port.,    Breaks up broadcast domains in a layer 2 switch internetwork.,    Provides multiple broadcast domains within a single collision domain.

Ans:C ,C


A small square or rectangular piece of silica on which several layers of an integrated circuit are etched or imprinted is called
Options: VLSI,    micro,    wafer,    chip

Ans:D ,D


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

Ans:– B ,


MS Office provides help in many ways, which of these is one of them?
Options:  A) What is this?, B) Office Assistant, C) Help menu, D) All of the above, 

Ans:-D,-D


Which of the following terminals' output most closely resembles the output produced by a plotter?
Options: graphics terminal,    POS terminal,    hardcopy terminal,    all the above

Ans:A,A


. Which leads you through the process of creating a table?
Options: a. wizard b. assistant c. relation d. coach

Ans:– a,– a


. To align controls in rows and columns like a spreadsheet, with labels across the top, which layout should be used?
Options: a. Datasheet b. Justified c. Stacked d. Tabular

Ans:0 – d ,0 – d


A transaction in which either all of the database actions occur or none of them do is called:
Options: atomic.,    consistent.,    isolated.,    durable.

Ans:A ,A


How do you create speaker note pages that show the slides, related notes, and your company logo on each page?
Options: a. Edit the notes master and add your company logo b. Edit the slide master and insert your company logo and notes pane c. Edit the handout master to include your company logo and one slide per page with additional note space d. All of the above

Ans:A , – A


Small squares, called _____, on the selection rectangle that surrounds a graphic can be used to change the dimensions of the graphic.
Options: a. scroll boxes b. sizing handles c. status indicators d. move handles

Ans:– B,– B


If a piece of data is stored in two places in the database, then 
Options: a . storage space is wasted b . changing the data in one spot will cause data inconsistency c . in can be more easily accessed d . both and b

Ans:.d,.d


1 Microfarad is the same as:
Options: 1 millionth of a picofarad,    1000 millifarads,    1 million picofarads,    1 million farads

Ans:C ,C


A _____ DBMS distributes data processing tasks between the workstation and a network server.
Options: Network,    Relational,    Client Server,    Hierarchical

Ans:C ,C


.    Which command displays all the files having the same name but different extensions?
Options: a.    Dir filename.* b.    Dir filename.ext c.    Dir *.sys d.    Dir *.ext

Ans:.b,Correct Answer: a. Dir filename.*


. Which statement is valid about magnetic tape?
Options: A) It is a plastic ribbon B) It is coated on both sides with iron oxide C) It can be erased and reused D) All of above

Ans:9-D,9-D


Memory access in RISC architecture is limited to instructions
Options: a. CALL and RET b. PUSH and POP c. STA and LDA d. MOV and JMP

Ans:10.c,10.c


. Which is built directly on the hardware?
Options: a. Computer Environment b. Application Software c. Operating System d. Database System

Ans:0 – c ,0 – c


A packet switching network that was sponsored by the Commission of the EEC and became operational in 1979 is
Options: LAN,    Broadband network,    Star network,    Euronet

Ans:D ,D


Which of the following is not the External Security Threats?
Options: Front-door Threats B. Back-door Threats C. Underground Threats D. Denial of Service (DoS)

Ans:– C ,


What is “Motion Path” in PowerPoint?
Options: A path to move items on a slide B. A path where PowerPoint file saved C. A path where PowerPoint Program installed D. None of above

Ans:– A ,


What do you mean by a Workspace?
Options: Group of Columns B. Group of Worksheets C. Group of Rows D. Group of Workbooks

Ans:– D ,


Acknowledgments, sequencing, and flow control are characteristics of which OSI layer?
Options: Layer 2,    Layer 3,    Layer 4,    Layer 7

Ans:C ,C


Which of the following is not a standard synchronous communication protocol?
Options: SDLC,    SMTP,    SLIP,    PAS

Ans:D ,D

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