Description : Which of these is NOT a way to decrease image blurriness? A. Use compatible file formats B. Increase the size of thumbails C. Save images using loseless compression D. Check if raster or vector graphics work better
Last Answer : A. Use compatible file formats
Description : Data compression which guarantees that all original data can be restored exactly A. Lossless compression B. Lossy compression C. File compression D. Raster compression
Last Answer : B. Lossy compression
Description : Set of L-dimensional blocks called the _______of the vector quantizer. a. Group b. Codebook c. Coding d. Index
Last Answer : b. Codebook
Description : An artist makes an RGB raster image in which each pixel color is encoded with 12-bits --- 4 bits each for red, green and blue.Which of the following correctly shows the hexadecimal value for Red as a 12-bit representation A. F00 B. 00F C. FF00 D. FF0000
Last Answer : D. FF0000
Description : To convert multimedia information coming from hardware devices into computer data can be compared with which process ? a) Coding b) Decoding c) (a) and (b) both d) None of these
Last Answer : a) Coding
Description : Using gzip program an uncompressed file in the tar format is compressed in the zip format, by providing which extension ? a) tar b) tar.gz c) tar.gz d) zip
Last Answer : c) tar.gz
Description : From the following, which file format stores multiple files in a single Zip file ? a) zap b) zip c) zop d) zep
Last Answer : b) zip
Description : Which file format stores multiple files in a single Zip file ? a. zap b. zip c. zop d. zep
Last Answer : b. zip
Description : Information ignored the human eye is the a. A. coding redundancy b. B. spatial redundancy c. C. temporal redundancy d. D. irrelevant info
Last Answer : d. D. irrelevant info
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.
Description : A ........ is an initial document that shows where all text and graphic elements will be placed A. Comp B. DTP C. On screen D. Online
Last Answer : C. On screen
Description : A programmer is writing a system that is intended to be able to store large amounts of personal data. As the programmer develops the data system, which of the following is LEAST likely to impact the ... of the information for analysis. D. The frequency of a particular item occurring in a data set.
Last Answer : D. The frequency of a particular item occurring in a data set.
Description : Huffman coding is an encoding algorithm used for A. lossless data compression B. files greater than 1 Mbit C. broadband systems D. lossy data compression
Last Answer : A. lossless data compression
Description : The basic idea behind Huffman coding is to A. compress data by using fewer bits to encode fewer frequently occuring characters B. compress data by using fewer bits to encode more ... frequently occuring characters D. expand data by using fewer bits to encode more frequently occuring characters
Last Answer : B. compress data by using fewer bits to encode more frequently occuring characters
Description : In the multimedia contents, coding and decoding is performed by a software component known as _______. a) codec b) modec c) sodec d) bodec
Last Answer : a) codec
Description : In the multimedia contents, which process is done by a software ? a) Conversion (coding) b) Reverse conversion c) (A) and (B) both d) None of these
Last Answer : c) (A) and (B) both
Description : Earliest name of the facsimile coding is___________. a. Feminine b. CALIC c. Telephone d. Fax
Last Answer : d. Fax
Description : A static dictionary technique that is less specific to a single application is: a. LZ77 b. Diagram Coding c. Initial dictionary d. LZW
Last Answer : b. Diagram Coding
Description : Sliding windowing technique is used in which dictionary compression a. LZW b. LZ77 c. LZ78 d. Diagram coding
Last Answer : b. LZ77
Description : In the multimedia contents, coding and decoding is performed by a software component known as: a. codec b. modec c. sodec
Last Answer : a. codec
Description : Huffman coding is an encoding algorithm used for a. lossless data compression b. files greater than 1 Mbit c. broadband systems d. lossy data compression
Last Answer : a. lossless data compression
Description : The basic idea behind Huffman coding is to a. compress data by using fewer bits to encode fewer frequently occuring characters b. compress data by using fewer bits to encode more ... frequently occuring characters d. expand data by using fewer bits to encode more frequently occuring characters
Last Answer : b. compress data by using fewer bits to encode more frequently occuring characters
Description : TSVQ stands for _________. A. tree structured vector quantizers B. tree structured valid quantizers C. tree unStructured vector quantizers D. tree structured vector quantity
Last Answer : A. tree structured vector quantizers
Description : In Tree structures vector quantization cluster is divided in a. 2 groups b. 3 groups c. Infinite groups d. N groups
Last Answer : a. 2 groups
Description : In polar vector quantization r is called ________. a. Quantum b. Phase c. Magnitude d. None of above
Last Answer : c. Magnitude
Description : __________ shape is used to make codebook in structure vector quantization. a. Square b. Rectangle c. Circle d. Hexagon
Last Answer : d. Hexagon
Description : LBG algorithm is used to design a _________. a. Quantizer b. Vector c. Codebook d. Index table
Last Answer : c. Codebook
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
Description : The techniques for reducing the storage requirement of computer files and directory structure are known by which name ? a) Data compression b) Data storage place c) Data form d) Data transfer
Last Answer : a) Data compression
Description : A variable is A. DIM B. Console.Writeline("") C. A uniquely named storage location D. a way of holding a WHOLE number
Last Answer : C. A uniquely named storage location
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.
Description : What are the main reasons to compress data? A. To reduce secondary storage space B. To maximise the available RAM memory C. To speed up network transmission times D. To optimise the data
Last Answer : A. To reduce secondary storage space
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
Description : Compression is done for saving a. A. storage b. B. bandwidth c. C. money d. D. Both A and B
Last Answer : d. D. Both A and B
Description : Which of the following is a benefit of lossy compression over lossless? A. File sizes will always be reduced, even when compressed multiple times. B. File quality is not harmed, e.g. ... can be decompressed back to their original uncompressed form. D. File sizes are usually significantly smaller.
Last Answer : C. Files can be decompressed back to their original uncompressed form.
Description : What type of compression actually deletes data and cannot be decompressed? A. File Compression B. Lossless Compression C. Lossy Compression D. Archive Compression
Last Answer : D. Archive Compression
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.
Description : To save file space lossy compression... A. Temporarily removes data B. Permanently removes data
Last Answer : A. Temporarily removes data
Description : Ms. Matthews is printing posters of her students' artwork. Since the images will be printed, they will need: A. a higher resolution for better print quality. B. a lower resolution for smaller ... a higher resolution to display on a monitor. D. a lower resolution in order to download faster.
Last Answer : A. a higher resolution for better print quality.
Description : A song is digitally recorded by an artist and saved to a file. Then, the artist runs a program that takes the file as input and produces a new file. The new file does not include any sound ... a smaller file size. D. This is a lossless transformation of data that results in a larger file size.
Last Answer : A. This is a lossy transformation of data that results in a smaller file size.
Description : Which formula shows how to work out the percentage a file has been compressed by? A. bits in (Huffman *7) /100 B. bits in ASCii - bits in Huffman C. difference in bits / bits in ASCII * 100
Last Answer : C. difference in bits / bits in ASCII * 100
Description : Lossy or lossless? This type of compression makes the file smaller A. Lossy B. Lossless
Last Answer : A. Lossy
Description : The purpose of data compression is to decrease file sizes . A. True B. False
Last Answer : A. True
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
Description : Down sampling is to make a digital image file smaller by A. removing pixels B. adding noise C. adding pixels D. removing noise
Last Answer : A. removing pixels
Description : What is the full form of M3U ? a) MPEG user sound reference file b) MPEG Universal Sound reference file c) MPEG unified sound reference file d) MPEG URL sound reference file
Last Answer : d) MPEG URL sound reference file
Description : The list of playing media file is known as ________. a) medialist b) playlist c) masterlist d) filelist
Last Answer : b) playlist
Description : Which button can be used in the Archive manager toolbar, to create a compressed file into uncompressed ? a) Open button b) Home button c) Extract d) Up button
Last Answer : c) Extract
Description : What is done firstly, to create a compressed and archive file into uncompressed ? a) Left clicking a file -> Open with archive manager b) Right clicking a file -> open with archive manager c) Left clicking a file -> open with Winzip d) Right clicking a file -> open with winzip
Last Answer : b) Right clicking a file -> open with archive manager
Description : Which file in java uses zip compression? a) JAR b) JER c) ZAR
Last Answer : a) JAR