Lakshya Education MCQs

Question: A checksum digit is used for detecting Errors in
Options:
A.Data transmission
B.Arithmetic operations
C.Logical operations
D.All of the above
E.None of the above
Answer: Option A

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More Questions on This Topic :

Question 1. Which of the following is used to derive the address, of a record from the record key
  1.    comma
  2.    hashing
  3.    variable
  4.    field
  5.    None of the above
Answer: Option B
Question 2. The records in a file on magnetic tape
  1.    can only be accessed serially
  2.    are meant for backup
  3.    cannot be transformed to a disk file
  4.    have to be arranged in a key sequence
  5.    None of the above
Answer: Option A
Question 3. Data structuring is refined through a process called
  1.    structuring process
  2.    hierarchical structure
  3.    normalization
  4.    Relation structure
  5.    None of the above
Answer: Option C
Question 4. Reverse video is a technique of
  1.    showing data with half brightness
  2.    showing data upside down on the screen
  3.    hiding confidential data on the screen
  4.    emphasizing data by reversing the foreground and background
  5.    None of the above
Answer: Option D
Question 5. Unit testing is
  1.    running the system with line data by the actual user
  2.    making sure that the new programs do in fact process certain transactions according to Specifications
  3.    is checking the logic of one or more programs in the candidate system
  4.    testing changes made in an existing or a new program
  5.    None of the above
Answer: Option D
Question 6. Structured design methodology is an approach to design that adheres to rales based on principles such as
  1.    top-down refinement
  2.    bottom-up design
  3.    data flow analysis
  4.    All of the above
  5.    None of the above
Answer: Option C

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