Tskafli 1 Til 9

19 Questions | Total Attempts: 52

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Tskafli 1 Til 9

Spurningar úr kafla 1-9(Overview)


Questions and Answers
  • 1. 
    Which of the following accesses a database in terms of a database model?
    • A. 

      Application software

    • B. 

      Actual database

    • C. 

      Database management system

  • 2. 
    Which of the following is not a tool for designing modular systems?
    • A. 

      Structure charts

    • B. 

      Sequence Diagrams

    • C. 

      Data dictionaries

    • D. 

      Class diagrams

  • 3. 
    Which of the following data mining techniques would be applied when trying to identify common properties between different groups of shoppers
    • A. 

      Class description

    • B. 

      Cluster analysis

    • C. 

      Association analysis

    • D. 

      Class discrimination

  • 4. 
    Which step of the machine cycle examines the op-code of the next instruction to be executed?
    • A. 

      Decode

    • B. 

      Load

    • C. 

      Fetch

    • D. 

      Execute

  • 5. 
    Which generation of wireless network technology uses the packet-switched IP network?
    • A. 

      3G

    • B. 

      4G

    • C. 

      5G

    • D. 

      All of the above

  • 6. 
    Blablablabla select Y.C                                from X.Y                                where X.A < Y.D
    • A. 

      R

    • B. 

      S

    • C. 

      Z

    • D. 

      T

  • 7. 
    Which of the following is not a means of performing multiple activities at the same time? (Caution: This problem uses terminology from chapter 1)
    • A. 

      Multiple Processors

    • B. 

      Pipeling

    • C. 

      Multiprogramming

    • D. 

      Virtual memory

  • 8. 
    Which of the following representations in two's complement notation represents the largest value?
    • A. 

      00000010

    • B. 

      00000001

    • C. 

      11111110

    • D. 

      11111111

  • 9. 
    Assuming that each of the following bit patterns originally had even parity, which one contains an error ?
    • A. 

      100001001

    • B. 

      100110100

    • C. 

      000011000

    • D. 

      110000011

  • 10. 
    Which of the following is a loop invariant at the point at which the test for termination is performed in the following loop structure?                 x <--- 3;                 repeat (x <-- x + 2)                 until (x > 5)
    • A. 

      X > 5

    • B. 

      X >= 5

    • C. 

      X =< 6

    • D. 

      X < 8

  • 11. 
    Which of the following components of an operating system is executed as the resault of an interrupt signal?
    • A. 

      File manager

    • B. 

      Dispatcher

    • C. 

      Memory manager

  • 12. 
    In a machine languace, the technique in which the data to be manipulated by an instruction is included within the instruction itself is called
    • A. 

      Direct adressing

    • B. 

      Immediate adressing

    • C. 

      Indirect adressing

  • 13. 
    Which of the following is not a parse tree of an expression based on the following grammar?
    • A. 

      A

    • B. 

      B

    • C. 

      C

  • 14. 
    Which of the following is a loop invariant at the point at which the test for termination is performed in the following loop structure? x <--- 3; while (x < 5) do (x <--- x + 2)
    • A. 

      X > 5

    • B. 

      X >= 5

    • C. 

      X =< 5

    • D. 

      X < 5

  • 15. 
    Which of the following is not used when determing the location of an entry in a two-dimensional homogenous array stored in a row-major order?
    • A. 

      Number of columns in the array

    • B. 

      Indices

    • C. 

      Address polynomial

    • D. 

      Number of rows in the array

  • 16. 
    Which of the following statements is not a resolvent of the following clauses? P or Q or !R                          !P or T                   !Q or T                   R or T
    • A. 

      T or P

    • B. 

      Q or T

    • C. 

      P or !R or T

    • D. 

      Q or !R or T

  • 17. 
    The bus in a computer is an example of which form of communication?
    • A. 

      Serial

    • B. 

      Neither serial or parallel

    • C. 

      Parallel

  • 18. 
    Which of the following is not represented in a class diagram?
    • A. 

      The attributes within a class

    • B. 

      The methods within a class

    • C. 

      Generalization

    • D. 

      The number of instances each class will have

  • 19. 
    Which layer of the TCP/IP hierarchy decides which application should receive an incoming message?
    • A. 

      Application

    • B. 

      Network

    • C. 

      Transport

    • D. 

      Link

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