What is ACID properties of Transactions?


Options: Atomicity, Consistency, Isolation, Database B. Atomicity, Consistency, Isolation, Durability C. Atomicity, Consistency, Inconsistent, Durability D. Automatically, Concurrency, Isolation, Durability

Ans:– B ,


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Asked in: KCC-2018   |   JOA 556-2018  |  HRTC JTO-2017

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More Database Systems Related questions:


After copying the content how many times can you paste?
Options: A. 1 B. 16 C. 32 D. Many

Ans:D,


A float occupies 4 bytes. If the hexadecimal equivalent of these 4 bytes are A, B, C and D, then when this float is stored in memory in which of the following order do these bytes gets stored?
Options: ABCD,    DCBA,    0xABCD,    Depends on big endian or little endian architecture

Ans:D ,D


. Which of the following is a way to access secondary memory?

Options: A) Random access memory B) Action method C) Transfer method D) Density method

Ans:A,A


What form of energy is used to maintain an imbalance of charges between the terminals of a battery?
Options: Electronical energy,    Mechanical energy,    Chemical energy,    Solar energy

Ans:C ,C


Which of the following is not an output device?
Options:  Scanner B.  Printer C.  Flat Screen D.  Touch Screen

Ans:– A ,


Which of the following are word processing software?
Options: a. WordPerfect b. Easy Word c. MS Word d. All of above

Ans:– D,– D


A high speed device used in CPU for temporary storage during processing is called
Options: A register,    A bus,    A databus,    All of the above

Ans:A ,A


What could cause a fixed disk error.
Options: No-CD installed,    bad ram,    slow processor,    Incorrect CMOS settings

Ans:D ,D


The program execution time:
Options: must be slower than the fastest mechanical operation that is to be controlled,    will vary depending on the language used,    cannot be changed once the program is written,    All of the above

Ans:B ,B


What do you call the chart that shows the proportions of how one or more data elements relate to another data element?
Options: XY Chart B. Line Chart C. Pie Chart D. Column Chart

Ans:– C ,


. Which elements of a worksheet can be protected from accidental modification?
Options: a. Contents b. Objects c. Scenarios d. All of the above

Ans:– d,– d


Which one of the following phrases most accurately describes a purely inductive circuit?
Options: Resistances provide the only opposition to current flow,    Inductive reactance provides the only opposition to current flow,    Combinations of resistance and inductive reactance provide any opposition to current flow,    The ac voltage lags the current by 90 degree

Ans:B ,B


What symbol is used before a number to make it a label?
Options: a. ” (quote) b. = (equal) c. _ (underscore) d. ‘ (apostrophe)

Ans:#8211; d,#8211; d


A disadvantage of Numerical Control (NC) is:
Options: the computer is not reliable,    the tape and tape reader are not reliable,    one operator is needed for each machine.,    the machine tool can easily overheat

Ans:B ,B


Which of the following devices could be part of a sensor?
Options: thermometer,    brake,    relay,    clutch.

Ans:A ,A


The marketing authority contributing the most to a definition of a structure for the marketing information system is
Options: Philip Vegas,    F.A. Fisher,    Philip Kotler,    Roger McSack

Ans:C ,C


In comparison with static RAM memory, the dynamic RAM memory has
Options: lower bit density and higher power consumption,    higher bit density and higher power consumption,    lower bit density and lower power consumption,    higher bit density and lower power consumption

Ans:D,D


________ is a simple object model that is easier to understand and use than OLE DB, and is frequently used for database applications.
Options: ASP,    XML,    ODBC,    ADO

Ans:D ,D


NIS
Options: is Network Information Service,    is a simple directory service whose main purpose is to allow remote authentication of systems on local network systems,    was formerly known as yellow pages,    allows configuration-such as password and group files

Ans:A ,A


Characteristic(s) of a distributed MIS structure is
Options: interactive sharing of the workload,    a multiprocessing environment,    computers supporting local DP operations,    All of the above

Ans:D ,D


Regarding a VDU, Which statement is more correct?
Options: A) It is an output device B) It is an input device C) It is a peripheral device D) It is hardware item

Ans:-C,-C


.   The arrangement of elements such as Title and Subtitle text, pictures, tables etis called
Options: a. Layout b. Presentation c. Design d. Scheme

Ans:0 – A ,0 – A


. You accidentally erased a record in the sheeWhat command can be used to restore it immediately?
Options: a. Insert b. Copy c. Undo d. Replace

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


. Which is not a computer classification?
Options: A) mainframe B) maxframe C) mini D) notebook

Ans:B,B


. Boot startup process
Options: a. Loads system files to RAM b. Checks the computer connections c. Clean up the computer memory d. Prepare the computer ready

Ans:5 – a ,5 – a


. IBM 1401 is the first computer to enter in Nepal. It belonged to
Options: A) First Generation B) Second Generation C) Third Generatio D) Frouth Generation

Ans:B,B


. Which operation you will perform if you need to move a block of text?
Options: a. Copy and Paste b. Cut and Paste c. Paste and Delete d. Paste and Cut

Ans:– B,– B


Most AC power is obtained from:
Options: generators,    batteries,    oscillators,    lightning

Ans:C ,C


Which one of the following kinds of materials has the lowest permeability?
Options: A diamagnetic material,    A paramagnetic material,    A feiTomagnetic material,    All of the above

Ans:A ,A


The digitizing technology that uses an electric field radiated from the tablet and picked up by a cursor is:
Options: electromagnetic,    raster,    sonic,    electrostic

Ans:D ,D


Access time in a computer memory is the time required to
Options: Locate the stored data,    Retrieve the stored data,    Both locate and retrieve the data,    All of the above

Ans:C ,C


The task of arranging data in order is called
Options: a. Searching b. Sorting c. Ordering d. Shorting

Ans:ndash; b,ndash; b


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

Ans:– a,– a


A microprocessor integrates the arithmetic logic and control circuitry of a computer into one chip. The first microprocessor was built by a group of engineers at the Intel Corpn. Can you tell who headed this group?
Options: Victor Poor,    Stan Mazor,    Marcian E. (Ted) Hoff,    Seymour Cray

Ans:C ,C


. ASCII stands for
Options: A) American Stable Code for International Interchange B) American Standard Case for Institutional Interchange C) American Standard Code for Information Interchange D) American Standard Code for Interchange Information

Ans:6-C,6-C


The total capacitive reactance of a parallel capacitor circuit is:
Options: equal to the sum of the individual capacitive-reactance values,    equal to the sum of the individual capacitance values,    equal to the source voltage divided by total current,    less than the capacitance value of the smallest capacitor

Ans:C ,C


“Ctrl + PageDown” is used to
Options: a. Moves the cursor one Paragraph Down b. Moves the cursor one Page Down c. Moves the cursor one Line Down d. Moves the cursor one Screen Down

Ans:–  B,–  B


. 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


You just installed a new IDE hard drive, but your system BIOS will not recognize the new drive, what should you check first.
Options: cable sequence,    jumpers on the hard drive,    drivers that need to be loaded,    hard drive manufacturer web site information

Ans:B ,B


Which of the following is not considered a tool at the system Design phase?
Options: Data-Flow Diagram,    Decision Table,    Pie chart,    System Flowchart

Ans:C ,C


Doubling the number of turns of wire in an inductor:
Options: reduces the value of inductance by one-half,    multiplies the value of inductance by two,    multiplies the value of inductance by four,    reduces the value of inductance by one-fourth

Ans:C ,C


. Which is an Office feature that makes it easy to edit embedded objects? 
Options: a. pasting b. visual editing c. tools, update, links d. edit, links

Ans: –  B , –  B


.   What is the name of the form used to input chart values?
Options: a. Datasheet b. Microsoft Excel c. Microsoft graph d. Auto form

Ans:5 – A ,5 – A


Which of the following are unique characteristics of half-duplex Ethernet when compared to full-duplex Ethernet? Half-duplex Ethernet operates in a shared collision domain. Half-duplex Ethernet operates in a private collision domain. Half-duplex Ethernet has higher effective throughput. Half-duplex Ethernet has lower effective throughput.
Options: 2 only,    1,2 and 3,    1 and 4,    4 only

Ans:C ,C


. What happens when a user selects a record in a form and presses [Delete]?
Options: a. The record is deleted in the form and from its source table. b. The record is deleted in the form, but not from its source table. c. The record is neither deleted in the form, nor from its source table. d. The record is not deleted in the form, but is deleted from its source table.

Ans:8 – a ,8 – a


The strategy for eliciting information regarding the user's requirements is (are)
Options: asking questions,    obtaining information from the present system,    prototyping,    All of the above

Ans:D ,D


Molecule is
Options: The smallest particle of a substance that retains the properties of that substance,    A atom that has a shortage of electrons in its outer orbit,    A atom that has an excessive number of electrons in its outer orbit,    A atom that flows whenever there is an imbalance of electrical charges between two points

Ans:A ,A


. Which of the following is the largest manufacturer of Hard Disk Drives?

Options: A) IBM B) Seagate C) Microsoft D) 3M

Ans:B,B


. CHKDSK command
Options: a. Check the disk b. Dos command c. Give information about disk d. All of the above

Ans:6 – d ,6 – d

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