Introduction To Computer Science And Python Programming

40 Questions | Total Attempts: 173

SettingsSettingsSettings
Please wait...
Introduction To Computer Science And Python Programming

Introduction to Computer Science and Python Programming


Related Topics
Questions and Answers
  • 1. 
    What is the decimal value of the hexadecimal number 777?
  • 2. 
    __________ is a way by which we can prevent data interception  
    • A. 

      Data decryption

    • B. 

      Data Transmission

    • C. 

      Data Encryption

    • D. 

      Data Automation

  • 3. 
    Which of the following statements is/are true?
    • A. 

      A megabyte is roughly 1 million characters

    • B. 

      A terabyte can store roughly 1 trillion characters

    • C. 

      A terabyte can store more than just a few books

    • D. 

      All of the above

  • 4. 
    • Convert 765(octal) to hexadecimal 
  • 5. 
    Convert AD1(hexadecimal) to decimal 
  • 6. 
    Data encryption is __________
    • A. 

      A way by which we can decrypt data

    • B. 

      The process of transforming data into an unintelligible form

    • C. 

      Undoing the transformation of data at the point of reception

    • D. 

      B & C

  • 7. 
    ________ was prominent in 5th generation computers
    • A. 

      Large Scale Integration

    • B. 

      Very Large Scale Integration

    • C. 

      Extremely Large Scale Integration

    • D. 

      A & B

  • 8. 
    Which of the following statements is/are true? 
    • A. 

      A megabyte is roughly 1 million characters

    • B. 

      A terabyte can store roughly 1 trillion characters

    • C. 

      A&B

    • D. 

      None of the above

  • 9. 
    What is the approximate value of 453 kilobyte in megabyte?
    • A. 

      453

    • B. 

      0.453

    • C. 

      4530

    • D. 

      0.0453

  • 10. 
    What is the result of the following hexadecimal arithmetic :10240 - 82A3  
    • A. 

      1F9D

    • B. 

      843D

    • C. 

      7F9D

    • D. 

      743D

  • 11. 
    What does an RGB value of (0, 0, 0) represent?
    • A. 

      Black

    • B. 

      White

    • C. 

      Violet

    • D. 

      Yellow

  • 12. 
    Who is the first female professor of Computer Science in Africa? 
    • A. 

      Prof. Adenike Osofisan

    • B. 

      Prof Adebola Osofisan

    • C. 

      Prof. Femi Osofisan

    • D. 

      Prof Adefemi Osofisan

  • 13. 
    The decision as to what data structures to use in implementing a system is best handled during ______  
    • A. 

      Program design

    • B. 

      Maintenance

    • C. 

      System design

    • D. 

      Delivery

  • 14. 
    One byte has ________ bits.
    • A. 

      8

    • B. 

      4

    • C. 

      5

    • D. 

      8

  • 15. 
    A ___________ error does not cause the program to abort, but produces incorrect results.
    • A. 

      Syntax

    • B. 

      Runtime

    • C. 

      Logic

    • D. 

      Ende-time

  • 16. 
    Which of these is not true of abstract data structures     
    • A. 

      A queue and a stack have two external pointers

    • B. 

      Python supports dictionaries data structures

    • C. 

      Python supports dictionaries data structures

    • D. 

      A queue is a FIFO data structure

  • 17. 
    What is the result of the statement:print ("1 + 3 * 2-5") 
    • A. 

      "1 + 3 * 2+5"

    • B. 

      7

    • C. 

      8

    • D. 

      1 + 3 * 2-5

  • 18. 
    Which of the followings is not an example of a linear data structure  
    • A. 

      List

    • B. 

      Queue

    • C. 

      Graph

    • D. 

      Arrays

  • 19. 
    Which of the following lines of code comes from a first generation computer language?
    • A. 

      ADD255(3,10),02B

    • B. 

      00010 1010 1101 0001 1010

    • C. 

      This Total=TotalA + TotalC

    • D. 

      Print("x > 0 and y > 0")

  • 20. 
    The _____ operation says if and only if all inputs are 1, the output will be 1. The output will be 0 if any of the inputs are 0.
    • A. 

      OR

    • B. 

      NAND

    • C. 

      NOR

    • D. 

      AND

  • 21. 
    What was the first truly mass auxiliary storage device?
    • A. 

      Hard disk drive

    • B. 

      Magnetic disk drive

    • C. 

      Main memory drive

    • D. 

      Magnetic tape drive

  • 22. 
    Which of the options A to E gives the correct sequence for the software development methods listed below(i)Specification of needs (ii)Algorithm design (iii)Problem analysis (iv)Documentation (v)Testing and verification (vi)Implementation
    • A. 

      I,ii,iii,iv,v,vi

    • B. 

      I,iii,ii,v,vi,iv

    • C. 

      I,iii,ii,vi,v,iv

    • D. 

      I,ii,iii,v,vi,iv

  • 23. 
    Suppose x = 1, y = -1, and z = 1. What will be displayed by the following statement?x = 1y = -1z = 1.if x > 0:  if y > 0:     print("x > 0 and y > 0")elif z > 0:  print("x < 0 and z > 0")
    • A. 

      X > 0 and y > 0

    • B. 

      X < 0 and z < 0

    • C. 

      Nothing is displayed

    • D. 

      The program has syntax error and won't run

  • 24. 
    Analyze the following code.even = Trueif even = True:print("It is even!") 
    • A. 

      The program has syntax error in lines 1 and 2

    • B. 

      The program has a syntax error in line 2

    • C. 

      The program runs and displays True

    • D. 

      The program runs and displays It is even!.

  • 25. 
    Eliminating errors in a program is also called ______ the program
    • A. 

      Debugging

    • B. 

      Modularizing

    • C. 

      Clarifying

    • D. 

      All of the above