

Computer Science Principles Unit 6 Review
Presentation
•
Computers
•
9th - 12th Grade
•
Practice Problem
•
Medium
Cory Bougher
Used 85+ times
FREE Resource
12 Slides • 12 Questions
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Computer Science Principles Unit 6 Review
Algorithms

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Algorithms
specific instructions to complete a task
often built as functions
uses sequence and iteration to repeat
"Undecidable problems" can not use algorithms
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Multiple Choice
The following algorithm is followed by someone to start a car and drive. Which concept does this algorithm best demonstrate?
sequencing
selection
iteration
execution
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Multiple Choice
Which of these algorithms will move the robot along the same path as the algorithm below?
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Optimization
code is altered to use less memory, less power
same results with fewer operations
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Multiple Choice
A school is designing a new bus route and are deciding where to put the different bus stops. They want to pick the collection of locations that maximizes the amount of students at a pick up to at least 2 . What term best defines the kind of problem?
A decision problem
An undecidable problem
An optimization problem
An efficiency problem
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Multiple Choice
The algorithm below is used to find the largest element in a list of numbers. Which line checks if a number is to BIGGER than the target?
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Multiple Choice
Which of the following algorithms is the same as the flowchart shown below?
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Efficiency
This graph shows the efficiencies of two different algorithms that solve the same problem. Line A is more consistent at returns than Line B (it is exponential).
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Heuristic Approaches
a practical method not guaranteed to be optimal or perfect
it can be considered a shortcut
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Multiple Choice
Which situation will likely need a heuristic solution?
finding the lowest total of comparable grocery items
finding the best schedule for all airplanes
finding the average of neighborhood home prices
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Linear vs. Binary
A linear search looks down a list, one item at a time, without jumping
binary search is when you start with the middle of a sorted list, and see whether that's greater than or less than the value you're looking for,
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Fill in the Blanks
Which search type would be used to find a vehicle ID number in an unsorted stack?
Type answer...
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Fill in the Blanks
Which search type would be used to find the earliest date in a timeline?
Type answer...
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Multiple Choice
A computer is performing a binary search on the sorted list of 9 numbers below. What is the maximum number of iterations needed to find the item?
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3
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Distributed & Parallel Computing
Scalability with more processors in DC
Reliable because of redundancy in DC
Economical because high-bandwidth networks are now affordable
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Multiple Choice
What is a benefit of parallel computing over sequential computing?
cost
scalability
fewer computers
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Sequential vs Parallel
S runs in order
P runs simultaneously to speed up overall completion time
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Multiple Choice
The impacts of running a parallel algorithm on a large number of computers includes:
less time to run but not more efficiency
less time to run and more efficiency
more time to run and more efficiency
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Multiple Choice
If an algorithm speeds up completion, it is called:
modulo
secession
processing time
Computer Science Principles Unit 6 Review
Algorithms

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