Processing of a data file to reduce its size for storage on disk is termed : (1) Amplification (2) Reduction (3) Compression (4) Rarefaction

Processing of a data file to reduce its size for storage on disk is termed : (1) Amplification (2) Reduction (3) Compression (4) Rarefaction
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Compression
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Which of the following is a true statement about data compression? A. Data compression techniques can be used to reduce the size of a file for storage or transmission. B. Data compression techniques can only be used for certain types of data. C. Data compression techniques cannot be applied to files being transmitted over the Internet. D. Lossy data compression should be used if there may be a need to recover all of the original data from the compressed file.

Description : Which of the following is a true statement about data compression? A. Data compression techniques can be used to reduce the size of a file for storage or transmission. B. Data compression techniques can ... used if there may be a need to recover all of the original data from the compressed file.

Last Answer : A. Data compression techniques can be used to reduce the size of a file for storage or transmission.

By using data compression technique, what can be done in the data storage place of memory and disk ? a) increment b) Reduction c) Transfer d) Repetition

Description : By using data compression technique, what can be done in the data storage place of memory and disk ? a) increment b) Reduction c) Transfer d) Repetition

Last Answer : b) Reduction

How does lossy compression reduce the size of files? A. Through removing redundancies by grouping repeated data together. B. By removing some precision in data that humans would have difficulty to perceive. C. By grouping files into a single folder, thus reducing the amount of storage needed. D. By replacing blocks of data with more compact representations.

Description : How does lossy compression reduce the size of files? A. Through removing redundancies by grouping repeated data together. B. By removing some precision in data that humans would have difficulty to ... the amount of storage needed. D. By replacing blocks of data with more compact representations.

Last Answer : D. By replacing blocks of data with more compact representations.

What is compression? A. To convert one file to another B. To reduce the size of data to save space C. To minimize the time taken for a file to be downloaded D. To compress something by pressing it very hard

Description : What is compression? A. To convert one file to another B. To reduce the size of data to save space C. To minimize the time taken for a file to be downloaded D. To compress something by pressing it very hard

Last Answer : B. To reduce the size of data to save space

What is compression? a. To convert one file to another b. To reduce the size of data to save space c. To minimize the time taken for a file to be downloaded d. To compress something by pressing it very hard

Description : What is compression? a. To convert one file to another b. To reduce the size of data to save space c. To minimize the time taken for a file to be downloaded d. To compress something by pressing it very hard

Last Answer : b. To reduce the size of data to save space

What is the differ between compression and rarefaction in sound wave?

Description : What is the differ between compression and rarefaction in sound wave?

Last Answer : Feel Free to Answer

The propagation of sound waves in a gas involves – (1) Adiabatic compression and rarefaction (2) Isothermal compression and rarefaction (3) Isochoric compression and rarefaction (4) Isobaric compression and rarefaction

Description : The propagation of sound waves in a gas involves – (1) Adiabatic compression and rarefaction (2) Isothermal compression and rarefaction (3) Isochoric compression and rarefaction (4) Isobaric compression and rarefaction

Last Answer : (1) Adiabatic compression and rarefaction Explanation: Sound is a mechanical wave that is an oscillation of pressure transmitted through a solid, liquid, or gas, composed of frequencies within the ... . Through solids, however, it can be transmitted as both longitudinal waves and transverse waves.

The propagation of sound waves in a gas involves – (1) Adiabatic compression and rarefaction (2) Isothermal compression and rarefaction (3) Isochoric compression and rarefaction (4) Isobaric compression and rarefaction

Description : The propagation of sound waves in a gas involves – (1) Adiabatic compression and rarefaction (2) Isothermal compression and rarefaction (3) Isochoric compression and rarefaction (4) Isobaric compression and rarefaction

Last Answer : (1) Adiabatic compression and rarefaction Explanation: Sound is a mechanical wave that is an oscillation of pressure transmitted through a solid, liquid, or gas, composed of frequencies within ... is transmitted through gases, plasma, and liquids as longitudinal waves, also called compression waves.

The propagation of sound waves in a gas involves (1) adiabatic compression and rarefaction (2) isothermal compression and rarefaction (3) isochoric compression and rarefaction (4) isobaric compression and rarefaction

Description : The propagation of sound waves in a gas involves (1) adiabatic compression and rarefaction (2) isothermal compression and rarefaction (3) isochoric compression and rarefaction (4) isobaric compression and rarefaction

Last Answer : adiabatic compression and rarefaction

The reduction in volume of soil due to squeezing out of water from the voids, is termed (A) Primary consolidation (B) Primary compression (C) Primary time effect (D) All the above

Description : The reduction in volume of soil due to squeezing out of water from the voids, is termed (A) Primary consolidation (B) Primary compression (C) Primary time effect (D) All the above

Last Answer : Answer: Option D

Which type of file is created by Word Processing Programs? 1) Database File 2) Storage File 3) Worksheet File 4) Document File

Description : Which type of file is created by Word Processing Programs? 1) Database File 2) Storage File 3) Worksheet File 4) Document File

Last Answer : 4) Document File

Hamzah needs to email a large file to a classmate. Why might he need to use file compression to do so? A. Email services often only let you send compressed data files. B. Compressed files are less likely to become corrupted when being transferred via email. C. He won't need to. All email providers let you send any files you like, regardless of size. D. Email services often have maximum file sizes that prevent you sending files that are too large.

Description : Hamzah needs to email a large file to a classmate. Why might he need to use file compression to do so? A. Email services often only let you send compressed data files. B. Compressed files are ... . D. Email services often have maximum file sizes that prevent you sending files that are too large.

Last Answer : D. Email services often have maximum file sizes that prevent you sending files that are too large.

Which best describes Lossless Compression? A. No information is lost but file size is increased B. There is no loss in information at all after compression C. Files which have the exact same data after compression D. Compression that involves an algorithm

Description : Which best describes Lossless Compression? A. No information is lost but file size is increased B. There is no loss in information at all after compression C. Files which have the exact same data after compression D. Compression that involves an algorithm

Last Answer : B. There is no loss in information at all after compression

The magnetic storage chip used to provide non-volatile direct access storage of data and that have no moving parts are known as A) Magnetic core memory B) Magnetic tape memory C) Magnetic disk memory D) Magnetic bubble memory

Description : The magnetic storage chip used to provide non-volatile direct access storage of data and that have no moving parts are known as A) Magnetic core memory B) Magnetic tape memory C) Magnetic disk memory D) Magnetic bubble memory

Last Answer : Answer : D

One of the popular mass storage device is CD ROM. What does CD ROM stand for? A) Compactable Read Only Memory B) Compact Data Read Only Memory C) Compactable Disk Read Only Memory D) Compact Disk Read Only Memory

Description : One of the popular mass storage device is CD ROM. What does CD ROM stand for? A) Compactable Read Only Memory B) Compact Data Read Only Memory C) Compactable Disk Read Only Memory D) Compact Disk Read Only Memory

Last Answer : Answer : D

Which of the following storage devices can store maximum amount of data? A) Floppy Disk B) Hard Disk C) Compact Disk D) Magneto Optic Disk

Description : Which of the following storage devices can store maximum amount of data? A) Floppy Disk B) Hard Disk C) Compact Disk D) Magneto Optic Disk

Last Answer : Answer : B

The magnetic storage chips used to provide non-volatile direct access storage of data and that have no moving parts are known as________ A. Magnetic core memory B. Magnetic tape memory C. Magnetic disk memory D. Magnetic bubble memory

Description : The magnetic storage chips used to provide non-volatile direct access storage of data and that have no moving parts are known as________ A. Magnetic core memory B. Magnetic tape memory C. Magnetic disk memory D. Magnetic bubble memory

Last Answer : D. Magnetic bubble memory

_____________is a feature of an operating system that allows a computer to compensate for shortages of physical memory by temporarily transferring pages of data from RAM to disk storage. A. Flash memory B. Virtual memory C. Buffer D. None of the Above

Description : _____________is a feature of an operating system that allows a computer to compensate for shortages of physical memory by temporarily transferring pages of data from RAM to disk storage. A. Flash memory B. Virtual memory C. Buffer D. None of the Above

Last Answer : B. Virtual memory

Find out the wrong feature of DVD among the following: a) DVD is similar to CD but has larger storage capacity and enormous clarity b) DVDs are primarily used to store music or 6 movies and can be played back on your television or the computer too c) Depending upon the disk type it can store several Gigabytes of data ( as opposed to around 650 MB of a CD) d) It is not re-writable media e) None of These

Description : Find out the wrong feature of DVD among the following: a) DVD is similar to CD but has larger storage capacity and enormous clarity b) DVDs are primarily used to store music or 6 movies and can be played back on ... opposed to around 650 MB of a CD) d) It is not re-writable media e) None of These

Last Answer : e) None of These

Compact Disk (CD) is portable disk having data storage capacity between____: a) 650 - 700 MB b) 700 - 800 MB c) 800 - 900 MB d) None of These

Description : Compact Disk (CD) is portable disk having data storage capacity between____: a) 650 - 700 MB b) 700 - 800 MB c) 800 - 900 MB d) None of These

Last Answer : a) 650 - 700 MB

Which of the following is the storage area whit in the computer itself which Holds data only Temporarily as the computer processes instructions? 1) The Hard Disk 2) Main Memory 3) The Control unit 4) Read Only Memory

Description : Which of the following is the storage area whit in the computer itself which Holds data only Temporarily as the computer processes instructions? 1) The Hard Disk 2) Main Memory 3) The Control unit 4) Read Only Memory

Last Answer : 4) Read Only Memory

Which of the following is a storage device that uses rigid, permanently installed magnetic disks to store data/information - 1) Floppy diskette 2) Hard disk 3) Permanent disk 4) None of these

Description : Which of the following is a storage device that uses rigid, permanently installed magnetic disks to store data/information - 1) Floppy diskette 2) Hard disk 3) Permanent disk 4) None of these

Last Answer : 2) Hard disk

Which of the following is a storage device that uses rigid, permanently installed magnetic disks to store data/information - 1 Floppy diskette 2 Hard disk 3 Permanent disk 4 None of these

Description : Which of the following is a storage device that uses rigid, permanently installed magnetic disks to store data/information - 1 Floppy diskette 2 Hard disk 3 Permanent disk 4 None of these

Last Answer : 2 Hard disk

Which of the following is used only for data entry and storage, and never for processing? A) Mouse B) Dumb terminal C) Micro computer D) Dedicated data entry system

Description : Which of the following is used only for data entry and storage, and never for processing? A) Mouse B) Dumb terminal C) Micro computer D) Dedicated data entry system

Last Answer : Answer : B

A modern electronic computer is a machine that is meant for A) Doing quick mathematical calculations B) Input, storage, manipulation and outputting of data C) Electronic data processing D) Performing repetitive tasks accurately

Description : A modern electronic computer is a machine that is meant for A) Doing quick mathematical calculations B) Input, storage, manipulation and outputting of data C) Electronic data processing D) Performing repetitive tasks accurately

Last Answer : Answer : B

A high speed device used in CPU for temporary storage during processing is called: a) A register b) A Data Bus c) All of The Above d) None of The Above

Description : A high speed device used in CPU for temporary storage during processing is called: a) A register b) A Data Bus c) All of The Above d) None of The Above

Last Answer : a) A register

Hardware includes a) all devices used to input data into a computer b) sets of instructions that a computer runs or executes c) the computer and all the devices connected to it that are used to input and output data d) all devices involved in processing information including the central processing unit, memory and storage e) None of these

Description : Hardware includes a) all devices used to input data into a computer b) sets of instructions that a computer runs or executes c) the computer and all the devices connected to it that ... involved in processing information including the central processing unit, memory and storage e) None of these

Last Answer : c) the computer and all the devices connected to it that are used to input and output data

where are programs and data to be used by the computer available? 1) Output 2) Processing unit 3) Input 4) Storage

Description : where are programs and data to be used by the computer available? 1) Output 2) Processing unit 3) Input 4) Storage

Last Answer : 4) Storage

Where are programs and data to be used by the computer available? (1) Processing Unit (2) Output (3) Storage (4) Input

Description : Where are programs and data to be used by the computer available? (1) Processing Unit (2) Output (3) Storage (4) Input

Last Answer : Storage

Which of the following activity can be termed as Software Piracy? A. Softloading B. Hard Disk loading C. Internet Downloading D. All of the above

Description : Which of the following activity can be termed as Software Piracy? A. Softloading B. Hard Disk loading C. Internet Downloading D. All of the above

Last Answer : D. All of the above

Which of the following storage devices exposes its storage to clients as Raw storage that can be partitioned to create volumes? a) block b) file c) disk d) all of the mentioned

Description : Which of the following storage devices exposes its storage to clients as Raw storage that can be partitioned to create volumes? a) block b) file c) disk d) all of the mentioned

Last Answer : block

Which of the following storage devices exposes its storage to clients as Raw storage that can be partitioned to create volumes? a) block b) file c) disk d) all of the mentioned

Description : Which of the following storage devices exposes its storage to clients as Raw storage that can be partitioned to create volumes? a) block b) file c) disk d) all of the mentioned

Last Answer : block

Pick out the wrong statement. (A) Recycled coarse material to the grinder by a classifier is termed as circulating load (B) Wear and tear in wet crushing is more than that in dry crushing of materials (C) Size enlargement (opposite of size reduction) is not a mechanical operation (D) A 'dust catcher' is simply an enlargement in a pipeline which permits the solids to settle down due to reduction in velocity of the dust laden gas

Description : Pick out the wrong statement. (A) Recycled coarse material to the grinder by a classifier is termed as circulating load (B) Wear and tear in wet crushing is more than that in dry crushing of ... a pipeline which permits the solids to settle down due to reduction in velocity of the dust laden gas

Last Answer : (C) Size enlargement (opposite of size reduction) is not a mechanical operation

An increase in the number of new cells in an organ or tissue that is reversible when the stimulus for production of new cells is removed is termed a) Hyperplasia. Hyperplasia occurs as cells multiply and are subjected to increased stimulation resulting in tissue mass enlargement. b) Hypertrophy. Hypertrophy is an increase in size and bulk of tissue that does not result from an increased number of cells. c) Atrophy. Atrophy refers to reduction in size of a structure after having come to full maturity. d) Neoplasia. With neoplasia, the increase in the number of new cells in an organ or tissue continues after the stimulus is removed.

Description : An increase in the number of new cells in an organ or tissue that is reversible when the stimulus for production of new cells is removed is termed a) Hyperplasia. Hyperplasia occurs as cells multiply ... in the number of new cells in an organ or tissue continues after the stimulus is removed.

Last Answer : a) Hyperplasia. Hyperplasia occurs as cells multiply and are subjected to increased stimulation resulting in tissue mass enlargement.

Which of the following disk operation is performed When a tenant is granted access to a virtual storage container? a) CRUD b) File system modifications c) Partitioning d) All of the mentioned

Description : Which of the following disk operation is performed When a tenant is granted access to a virtual storage container? a) CRUD b) File system modifications c) Partitioning d) All of the mentioned

Last Answer : All of the mentioned

Which of the following factors led to the demise of many of the early SSPs and to many hosted file services? a) The Dot.com bust in 2000 b) The inability of file-hosting companies to successfully monetize online storage c) The continued commoditization of large disk drives d) All of the mentioned

Description : Which of the following factors led to the demise of many of the early SSPs and to many hosted file services? a) The Dot.com bust in 2000 b) The inability of file-hosting companies to successfully monetize online storage c) The continued commoditization of large disk drives d) All of the mentioned

Last Answer : All of the mentioned

File management function of the operating system includes i) File creation and deletion ii) Disk scheduling iii) Directory creation iv) Mapping file in secondary storage. A) i, ii and iii only B) i, iii and iv only C) ii, iii and iv only D) All i, ii, iii and iv

Description : File management function of the operating system includes i) File creation and deletion ii) Disk scheduling iii) Directory creation iv) Mapping file in secondary storage. A) i, ii and iii only B) i, iii and iv only C) ii, iii and iv only D) All i, ii, iii and iv

Last Answer : B) i, iii and iv only

The main size reduction operation in ultrafine grinders is (A) Cutting (B) Attrition (C) Compression (D) Impact

Description : The main size reduction operation in ultrafine grinders is (A) Cutting (B) Attrition (C) Compression (D) Impact

Last Answer : (B) Attrition

Size reduction does not occur due to compression in case of (A) Rod mills (B) Gyratory crushers (C) Jaw crushers (D) Smooth roll crushers

Description : Size reduction does not occur due to compression in case of (A) Rod mills (B) Gyratory crushers (C) Jaw crushers (D) Smooth roll crushers

Last Answer : (A) Rod mills

Which of the following terminology is not used for size reduction of materials to fine sizes or powders? (A) Comminution (B) Dispersion (C) Pulverisation (D) Compression

Description : Which of the following terminology is not used for size reduction of materials to fine sizes or powders? (A) Comminution (B) Dispersion (C) Pulverisation (D) Compression

Last Answer : (D) Compression

Colloid mills achieve size reduction mainly by (A) Impact (B) Attrition (C) Cutting (D) Compression

Description : Colloid mills achieve size reduction mainly by (A) Impact (B) Attrition (C) Cutting (D) Compression

Last Answer : (B) Attrition

Size reduction mechanism used in Jaw crushers is (A) Attrition (B) Compression

Description : Size reduction mechanism used in Jaw crushers is (A) Attrition (B) Compression

Last Answer : (B) Compression

Maximum size reduction in a fluid energy mill is achieved by (A) Compression (B) Interparticle attrition (C) Cutting (D) Impact

Description : Maximum size reduction in a fluid energy mill is achieved by (A) Compression (B) Interparticle attrition (C) Cutting (D) Impact

Last Answer : (B) Interparticle attrition

Maximum size reduction in a ball mill is done by the, __________ action. (A) Attrition (B) Compression (C) Impact (D) Cutting

Description : Maximum size reduction in a ball mill is done by the, __________ action. (A) Attrition (B) Compression (C) Impact (D) Cutting

Last Answer : (C) Impact

General mechanism of size reduction in intermediate and fine grinder is by (A) Cutting action (B) Compression (C) Compression and tearing (D) Impact and attrition

Description : General mechanism of size reduction in intermediate and fine grinder is by (A) Cutting action (B) Compression (C) Compression and tearing (D) Impact and attrition

Last Answer : (D) Impact and attrition

Pick out the wrong statement. (A) More commonly used jaw crusher between Dodge jaw crusher and Blake jaw crusher is the later one(B) There are only four methods namely compression, impact, attrition andcutting, which the size reduction equipments employ(C) Cutting machines mainly employ 'attrition' for size reduction of solids(D) Operating principles of Dodge and Blake jaw crushers are combined inthe working of universal jaw crushers

Description : Pick out the wrong statement. (A) More commonly used jaw crusher between Dodge jaw crusher and Blake jaw crusher is the later one (B) There are only four methods namely compression, impact ... Operating principles of Dodge and Blake jaw crushers are combined in the working of universal jaw crushers

Last Answer : (C) Cutting machines mainly employ 'attrition' for size reduction of solids

Toothed roll crushers achieve size reduction by (A) Tearing (shear) and compression (B) Impact and attrition (C) Both (A) & (B) (D) Neither (A) nor (B)

Description : Toothed roll crushers achieve size reduction by (A) Tearing (shear) and compression (B) Impact and attrition (C) Both (A) & (B) (D) Neither (A) nor (B)

Last Answer : (C) Both (A) & (B)

A peripheral device used in a word processing system is 1) Floppy disk 2) Magnetic card reader 3) CRT 4) All of these

Description : A peripheral device used in a word processing system is 1) Floppy disk 2) Magnetic card reader 3) CRT 4) All of these

Last Answer : 4) All of these

Consider the formula in image processing RD = 1 - (1/CR) Where CR = n1/n2 CR is called as compression ratio n1 and n2 denotes the number of information carrying units in two datasets that represent the same information. In this situation RD is called as relative ................ of the first data set. (A) Data Compression (B) Data Redundancy (C) Data Relation (D) Data Representation

Description : Consider the formula in image processing RD = 1 - (1/CR) Where CR = n1/n2 CR is called as compression ratio n1 and n2 denotes the number of information carrying units in two datasets that represent ... . (A) Data Compression (B) Data Redundancy (C) Data Relation (D) Data Representation

Last Answer : (B) Data Redundancy

Which most popular input device is used today for interactive processing and for the one line entry of data for batch processing? a. Mouse b. Magnetic disk c. Visual display terminal d. Card punch

Description : Which most popular input device is used today for interactive processing and for the one line entry of data for batch processing? a. Mouse b. Magnetic disk c. Visual display terminal d. Card punch

Last Answer : Mouse