
Computer Science Exam Questions
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University
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Hard
John Lawrence
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48 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
The diagrams below show three items stored in a stack. Which sequence of operations would transform the stack from the initial state to the final state? Initial State TOP C A B Final State TOP A C B
POP, POP, PUSH(C), PUSH(A)
POP, POP, PUSH(A), PUSH(C)
PUSH(A), PUSH(C), POP, POP
POP, POP, POP, PUSH(A), PUSH(C), PUSH(B)
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which ordering below gives a working implementation for the ‘POP ( )’ operation?
IX, V, III, I
II, V, IV, I
VI, IV, II, I
IX, V, IV, I
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Assume that the list is sorted. When searching the sorted list, which of the following will be found the fastest using a binary search?
ant
dog
fish
grasshopper
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Figure 1 below shows the state of a stack before the POP operation is performed. Figure 2 shows the state after the POP operation is performed. Which of the following combinations of arrows correctly identifies the top of the stack structures?
I and V
II and VI
III and VII
IV and VIII
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Entries in a stack are ‘ordered’. What is the meaning of this statement?
The collection of stacks can be sorted.
Stack entries may be compared with the ‘<’ operation.
The entries must be stored in a linked list.
There is a first entry, a second entry and so on.
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Consider a circular queue, C, with a pointer rear that references the location of the rear of the queue. The front pointer is set to zero before any ADT operation. The following operations are performed on C. enqueue, enqueue, enqueue, dequeue, dequeue, enqueue, enqueue, enqueue, dequeue Assuming that the locations range from 0 to 4, what is the value of the pointer front?
0
1
2
3
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Using the selection sort algorithm, what would the array above look like after three passes?
3718243230
3724183032
3718303224
3718243032
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