Description : A sport/event organization that wants to obtain information about the population in a certain geographic location might use A. Government sources B. Primary Databases C. Personal Questionaires D. telephone surveys
Last Answer : B. Primary Databases
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 : 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 : 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 : 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 : 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 : 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 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 : 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 : 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 : 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 : To save file space lossy compression... A. Temporarily removes data B. Permanently removes data
Last Answer : A. Temporarily removes data
Description : Data that describes other data. For example, a digital image may include metadata that describe the size of the image, number of colors, or resolution. A. Metadata B. Emdata C. Tridata D. Perameter
Last Answer : D. Perameter
Description : A type of data used for graphics or pictures. A. Gyphs B. Numbers C. Text D. Image
Last Answer : A. Gyphs
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 : 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 : 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 : 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 : 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 : Lossy or lossless? This type of compression does not get rid of any data A. Lossy B. Lossless
Last Answer : B. Lossless
Description : Which of these terms is a type of data compression? A. resolution B. zipping C. Inputting D. caching
Last Answer : B. zipping
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 : 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 : 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 : 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 : From the following, which option shows an issue faced with multimedia contents ? a) Converting multimedia information coming from hardware devices into computer data b) converting the computer data back into audio/ ... for playing on the hardware device c) a and b both d) None of these
Last Answer : c) a and b both
Description : From the following for which process ‘Archive Manager tool ‘ is used ? a) For transferring the data of file and directory b) For place compression on the file and directory c) For altering the form of file and directory d) For data compression on file and directory
Last Answer : d) For data compression on file and directory
Description : What is the reason that in the beginning of encoded file there is data telling which digit/letter represents which word ? a) It is needed to convert the file in compression form b) it is ... convert the file in its original uncompressed form d) it is needed to convert the file in graphical form
Last Answer : c) it is needed to convert the file in its original uncompressed form
Description : Where in the encoded file, one can have the data that tells which digit/letter represents which word ? a) Beginning b) Middle c) Ending d) None of these
Last Answer : a) Beginning
Description : In data compression technique, each word is represented by what ? a) Digit b) Letter c) a or b d) Picture
Last Answer : c) a or b
Description : Which technique identify and eliminate less important information to conserve space ? a) Data compression b) Data repetition c) Data extension d) Data conservation
Last Answer : a) Data compression
Description : What process is done by the data compression while encoding the data ? a) Identifying repetition in the data b) Reducing repetition in the data c) Eliminating repetition in the data d) All of these
Last Answer : d) All of these
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 : 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
Description : Quantization techniques that operate on blocks of data are called a. Adaptive quantization b. Non uniform Quantization c. Scalar Quantization d. None of the Above
Last Answer : d. None of the Above
Description : The difference between the original and reconstructed data, which we will refer to as the ______in the reconstructed data. a. Redundancy b. Compression c. loss d. Distortion
Last Answer : d. Distortion
Description : In dictionary techniques for data compaction, which approach of building dictionary is used for the prior knowledge of probability of the frequently occurring patterns? a. Static Dictionary b. Adaptive Dictionary c. both a and b d. None of the above
Last Answer : a. Static Dictionary
Description : Compression method use for Integer type data a. Huffman b. LZ77 c. Golomb Code d. Adaptive Huffman
Last Answer : c. Golomb Code
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 : 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 : 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 : Internal auditing is an independent appraisal function established within an organization to examine and evaluate its activities. To that end, internal auditing provides assistance to a. External auditors b. Stockholders c. Management and the board of directors d. Government
Last Answer : Management and the board of directors
Description : __ consists of ists of activities un ities undertaken to crea ken to create, mai te, maintain, or c ntain, or change the at hange the attitudes and des and behavior of ... organization. a. Person marketing b. Organization marketing Organization marketing c. Internal marketing d. Service variability
Last Answer : b. Organization marketing Organization marketing