Description : colors of the pixels in a digital image are often represented by red, green, and blue values between 0 and 255 (an RGB triplet). A photographer is manipulating a digital image ... using on the digital image? A. Lossless transformation B. Lossy transformation C. Multiband transformation
Last Answer : A. Lossless transformation
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 : The amount of detail stored for an Image. A. Resolution B. PPI C. Print Resolution
Last Answer : A. Resolution
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 : 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 : 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 : 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 : Dennis has saved a photograph and has lost data during compression. What type of compression has occurred? A. LOSSY B. LOSSLESS C. RESOLUTION D. COLOR MODE
Last Answer : A. LOSSY
Description : Which of these terms is a type of data compression? A. resolution B. zipping C. Inputting D. caching
Last Answer : B. zipping
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 : 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 type of data used for graphics or pictures. A. Gyphs B. Numbers C. Text D. Image
Last Answer : A. Gyphs
Description : The color model uses varying intensities of (R)ed, (G)reen, and (B)lue light are added together in to reproduce a broad array of colors. A. BGR Color B. Primary Color C. Analogous Color D. RGB Color
Last Answer : C. Analogous Color
Description : To change the font size in order to display more text or other data A. Border B. Shading C. Shrink to fit D. Printing area
Last Answer : A. Border
Description : The number of dots of ink or toner per inch on a printed image. A. DPI B. RGB C. CMYK
Last Answer : B. RGB
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 : 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 : 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 : 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 : Which is not an example of Qualitative Data A. color B. smell C. beauty D. volume
Last Answer : A. color
Description : Which is an example of primary data? A. journal entry B. survey C. census data D. news article
Last Answer : C. census data
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 : The appearance of an image on a website is dependent upon? A. The DPI of the printer B. The SPI of the printer C. The PPI of the monitor D. The SPI of the monitor
Last Answer : C. The PPI of the monitor
Description : The act of changing the background color of a publication on which the image displays does not make the image look different. A. Color Depth B. Compression C. Portability D. Transparency
Last Answer : D. Transparency
Description : The binary code for each pixel is used to determine A. Which colour will be displayed B. How big the image is C. What shape the image is D. How many pixels will be in the image
Last Answer : A. Which colour will be displayed
Description : A bitmap image is made up of A. Pixels B. Colours C. Sounds D. Samples
Last Answer : A. Pixels
Description : What is colour/bit depth of the image? A. 1 B. 2 C. 3 D. 4
Last Answer : A. 1
Description : An Image is Square array of 256X256 pixel requires 65536 bytes, and after compression it reduced to 16384 X8 bytes. What will be the compression rate: a. 2 b. 3 c. 4 d. 5
Last Answer : a. 2
Description : An Image is represented by 65536 X8 bits, and after compression it reduced to 16384 X8 bits. What will be the compression ratio: a. 55% b. 65% c. 75% d. 85%
Last Answer : c. 75%
Description : Digital video is sequence of a. pixels b. matrix c. frames d. coordinates
Last Answer : c. frames
Description : Digital video is sequence of a. A. pixels b. B. matrix c. C. frames d. D. coordinates
Last Answer : c. C. frames
Description : Which of the following is used to portray data more specifically and is helpful in determining the background of digital evidence? a. Data b. Metadata c. Cookies d. History
Last Answer : b. Metadata
Description : The standard unit of measurement for U.S. standard size papers. A. Inches B. Picas C. Points D. Pixels
Last Answer : A. Inches
Description : A webpage is an example of an ........... electronic document A. Comp B. DTP C. On screen D. Online
Last Answer : C. On screen
Description : ASCII Code is a example of a. Prefix code b. Variable length code c. Fixed length code d. Alphanumeric code
Last Answer : c. Fixed length code
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 : 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 : External data can be useful because: A. It is the most expensive to obtain B. It is the cheapest to obtain C. It is most reliable D. It is the most current
Last Answer : B. It is the cheapest to obtain
Description : shipping/inventory and billing records are examples of A. external data B. internal data C. qualitative data D. clickstream data
Last Answer : B. internal data
Description : Internal data comes from: A. within the organization B. from the government C. inside the target market D. inside the human mind
Last Answer : A. within the organization
Description : Quantitative Data has to do with numbers or data that can be ___. A. Observed B. Tasted C. felt by emotion D. measured
Last Answer : D. measured
Description : To save file space lossy compression... A. Temporarily removes data B. Permanently removes data
Last Answer : A. Temporarily removes data
Description : Which of these statements highlights a valid privacy concern when working with large data sets? I. Data from multiple sources could be linked together to discover someone's identity. II. For access to location-based services, a ... . I and II only B. I only C. I and III only D. I, II and III
Last Answer : B. I only
Description : When is Run Length Encoding used? A. When we want to compress patterns of data B. When we want to decompress patterns of data C. When we want to encode running videos
Last Answer : A. When we want to compress patterns of data
Description : Lossy or lossless? This type of compression does not get rid of any data A. Lossy B. Lossless
Last Answer : B. Lossless
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 : Compression in general makes it _______ to send, upload and stream data A. Quicker B. Slower
Last Answer : A. Quicker
Description : The purpose of data compression is to decrease file sizes . A. True B. False
Last Answer : A. True
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