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MCQs

Total Questions : 229 | Page 19 of 23 pages
Question 181. A top to bottom relationship among the items in a database is established by a
  1.    Hierarchical schema
  2.    Network Schema
  3.    Relational schema
  4.    All of the above
 Discuss Question
Answer: Option A. -> Hierarchical schema
Answer: (a)
Question 182. The term refers to a collection of related information
  1.    Database
  2.    List
  3.    Outline
  4.    Record
 Discuss Question
Answer: Option C. -> Outline
Answer: (c)
Question 183. The activity of a file
  1.    Is a low percentages of number of records added or deleted from a file
  2.    If high, reduces processing efficiency for sequential and non sequential files
  3.    Is a measure of the percentage of existing records updated during a run
  4.    Refers to how closely the files fit into the allocated
 Discuss Question
Answer: Option A. -> Is a low percentages of number of records added or deleted from a file
Answer: (a)
Question 184. A file containing relatively permanent data is
  1.    Random file
  2.    Transaction file
  3.    Master file
  4.    Sequential file
 Discuss Question
Answer: Option C. -> Master file
Answer: (c)
Question 185. The framework for storing records in database is a
  1.    Form
  2.    Report
  3.    Query
  4.    Table
 Discuss Question
Answer: Option C. -> Query
Answer: (c)
Question 186. The raw facts are called
  1.    Data
  2.    Programs
  3.    Commands
  4.    Responses
 Discuss Question
Answer: Option A. -> Data
Answer: (a)
Question 187. The following term applies to a collection of related records in a database
  1.    File
  2.    Layout
  3.    File
  4.    Field
 Discuss Question
Answer: Option A. -> File
Answer: (a)
Question 188. If a piece of data is stored in two places in the database, then a
  1.    Storage space is wasted
  2.    Changing the data is one spot will cause data inconsistency
  3.    It can be more easily accessed
  4.    Both (A) and (B)
 Discuss Question
Answer: Option D. -> Both (A) and (B)
Answer: (d)
Question 189. Data owners must protect their data against corruption or loss. One sensible method to achieving this is to
  1.    Take regular backups
  2.    Keep a hardcopy printout of all data
  3.    Keep fingers crossed at all times
  4.    None of above
 Discuss Question
Answer: Option A. -> Take regular backups
Answer: (a)
Question 190. The following devices can be used to input data into a database
  1.    Keyboard, fax roller ball
  2.    Mouse, keyboard, monitor
  3.    Mouse, keyboard, touch screen
  4.    None of the above
 Discuss Question
Answer: Option C. -> Mouse, keyboard, touch screen
Answer: (c)

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