
H446 Paper 2 Prep
Authored by RHSC Computing
Computers
12th Grade
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1.
MATCH QUESTION
1 min • 5 pts
Match the following 2.1 Elements of computational thinking
Concurrently
Creating a step-by-step solution to the problem.
Thinking procedurally
What data will be needed often, we should cache this
Thinking abstractly
Simplifying a problem by focusing on the important information only.
Thinking ahead
The parts of a problem that can be tackled at the same time.
Thinking logically
Breaking down a complex problem into smaller, more manageable parts
2.
MATCH QUESTION
1 min • 5 pts
Match the following 2.2.1 Programming techniques
Polymorphism
The mechanism by which one class can get the attributes and methods from another class.
Encapsulation
Combining data and methods that operate on that data into a single unit, or class
Inheritance
Repeating a set of instructions a certain number of times or until a condition is met.
Iteration
The ability to present the same interface for different underlying forms (data types).
Recursion
A function that calls itself in order to solve a problem.
3.
MATCH QUESTION
1 min • 5 pts
Match the following 2.2.2 Computational methods
Simulation
A model that can imitate the operation of a real-world process or system over time.
Backtracking
Creating a model that can imitate the operation of a real-world process or system over time.
Divide and Conquer
Process of searching large volumes of data for patterns.
Data Mining
Breaking a problem into smaller sub-problems, solving each sub-problem
Simulation
All possible solutions to a problem, building and abandoning paths to determine the solution.
4.
MATCH QUESTION
1 min • 5 pts
Match the following Performance Modeling questions
Scalability
A part of the system that slows everything else down.
Load Testing
The amount of work a system can do in a certain amount of time.
Latency
Testing how well a system performs when many tasks are done at the same time.
Throughput
The ability of a system to handle more work or grow larger.
Bottleneck
The delay before a transfer of data begins following an instruction for its transfer
5.
MATCH QUESTION
1 min • 5 pts
Match the following
Best Case
The amount of memory an algorithm uses in relation to the input size
Space Complexity
Minimum amount of time an algorithm can take to complete.
Worst Case
How long an algorithm takes to complete a function
Time Complexity
Notation for running time
Big O Notation
Maximum amount of time an algorithm can take to complete
6.
MATCH QUESTION
1 min • 5 pts
Match the following search algorithms definitions
Depth-First Search (DFS)
Explores as far down a branch as possible before backtracking.
Linear Search
Operates by dividing the search interval in half repeatedly; requires a sorted list.
Hash Table Search
Checks each element in a list sequentially until the desired element is found or the list ends.
Binary Search
Explores all neighbors at the present depth level before moving on to nodes at the next depth level.
Breadth-First Search (BFS)
Uses a function to directly compute the index of the desired element.
7.
MATCH QUESTION
1 min • 5 pts
Match the following sorting algorithms definitions
Insertion Sort
builds the final sorted array one item at a time, with each new item being inserted into its correct position.
Merge Sort
repeatedly steps through the list, compares adjacent elements, and swaps them if they are in the wrong order.
Bubble Sort
divides the array into two halves, recursively sorts them, and then merges the two sorted halves.
Quick Sort
picks an element as a pivot and partitions the array around the pivot.
Selection Sort
repeatedly selects the smallest (or largest) element from the unsorted portion and moves it to the sorted portion.
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