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Algorithm design - Part 4
1
of
25
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Hints:
3
Q1. What is the difference between analogue and digital data?
A. Analogue is continuous data, whereas digital signals have two values, 0 and 1.
B. Analogue has two values 0 and 1, whereas digital is continuous data.
Q2. Is NOT a piece of meta data that would be stored by an image:
A. Bit depth
B. Resolution
C. Compression
D. DPI
Q3. What is happening in row 3?
A. The answer is the process part of the program
B. The answer is outputting the name
C. The name variable is being set to the answer
D. The answer variable is being used to set the name variable
Q4. Identify the description of a linear search
A. Put the elements in order, check each item in turn
B. Put the elements in order, compare to the middle value, split the list in order and repeat
C. Elements do not need to be in order, check each item in turn
D. Elements do not need to be in order, compare to the middle value, split the list in order and repeat
Q5. Which statement is NOT correct?
A. Algorithm is a computer language that a computer understands.
B. Algorithm has a set of instructions to follow.
C. One of examples of algorithms is a cooking recipe.
D. To tell a computer to do something, a program must be written in a computer language.
Q6. What would you call this variable?Storing someone’s name
A. name
B. dim
C. variable
Q7. An identifier is the ’name’ given to a variable. For example: distance To School = 10What is the value of the variable?
A. 10
B. =
C. distanceToSchool
Q8. Which of the following is an example of thinking computationally
A. Asking a friend how to bake a cake
B. Trying different ingredients to see which works best when making a cake
C. Planning how to bake a cake and compiling a list of steps to follow
Q9. A section of flowchart that happens continuously is known as a
A. loop
B. wait
C. decision
D. input / output
Q10. An approach to problem-solving in which different sequences are considered until the best suitable solution is found is called
A. Traversal
B. Heuristics
C. Backtracking
D. Data Mining
Q11. What is the benefit of understanding a problem before coding?
A. A better designed program is created to handle all the needed functionality
B. Less testing required
C. Little or no documentation is then needed
D. Users will not need training to use the program
Q12. Which of the following answers correctly displays the Fibonacci sequence?
A. 1, 5, 10, 15, 20, 25, 30, 35 ___
B. 0, 1, 1, 2, 3, 5, 8, 13, 21 34, 55 ___
C. 0, 1, 2, 3, 4, 5, 6, 7, 8, 9 ___
D. 10, 20, 30, 40, 50, 60, 70, 80 ___
Q13. In the loop: FOR i = 1 TO 50 What is i?
A. Object
B. Function
C. Variable
Q14. What is a Merge Sort?
A. An algorithm to search unordered data
B. An algorithm to search ordered data
C. A method of sorting data by dividing a list into two sub-lists and then repeating the process until all elements are in order.
D. A method of sorting data by inserting each element into the correct order.
Q15. In a flow chart, what does a rectangle mean?
A. Start or end
B. Decision
C. Process
D. Input or Output
Q16. In a Flowchart, what does this symbol mean?
×
A. Start/End
B. Process
C. Data Input
D. Choice
Q17. What shape will the program draw?
×
A. Rectangle
B. Hexagon
C. Triangle
D. Square
Q18. In which of the following fields are computers used,
A. Education
B. Law Enforcement
C. Engineering
D. All of the above
Q19. If the goal of this program is to sort numbers greater than 10 into list B and less than 10 into list A, then what sort of error does the program have?
×
A. Logical
B. Syntax
C. Out of range
D. Runtime
Q20. What will be the worst case complexity of Merge Sort while data is already sorted in increasing order?
A. O(1)
B. O(n)
C. O(nlog ___2n)
D. O(n2)
Q21. What does IMPLEMENT AN ALGORITHM mean?
A. Put a list of instructions into action
B. Make a copy of a list of instructions
C. Deconstruct a problem
D. Chose a different direction of flow
Q22. What is an advantage of the Linear search algorithm?
×
A. Performs well with small sized data sets
B. Can be used on data sets with more than a million elements
C. Is complicated to code
Q23. Picking out the important bits of information from the problem, ignoring the specific details that don’t matter.
A. Decomposition
B. Abstraction
C. Programming
D. Algorithmic Thinking
Q24. What does an arrow represent in a flow chart?
A. Decision making
B. Data Flow
C. Start
D. Stop
Q25. Data sent from a Computer is called
A. Input
B. Output
C. Process
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