Free Practice Quiz Question List

1 Computational Thinking and Problem Solving Online Quiz Questions

Use this free practice quiz with 20 questions to review 1 Computational Thinking and Problem Solving, test your knowledge, and prepare for your next test or exam.

20 questions

Choose one

1 point

A programmer is designing a weather application that displays a current forecast. Which representation best applies abstraction for this purpose?

A
A detailed model of every satellite, sensor, database, and communication event
B
A representation containing location, current temperature, weather condition, and forecast time
C
A complete map of every building and road near the user
D
Only the application's source-code files

Choose one

1 point

Which set contains the three parts of a computational solution described in the material?

A
A problem, a representation, and a process
B
A computer, a programming language, and a network
C
A user interface, a database, and a printer
D
An input device, an operating system, and a file

Fill in the blank

1 point

Breaking a complex problem into smaller, manageable subproblems is called . A separately organized part of a system is called a .

Written response

1 point

Using the rule $Fahrenheit = Celsius \times \frac{9}{5} + 32$ , what is the equivalent of $20$ degrees Celsius? Enter the value in degrees Fahrenheit.

Fill in the blank

1 point

When testing an algorithm, cases at the limits are called , while cases with unacceptable or malformed inputs are called .

Choose all

1 point

Which choices are the three parts of a computational solution? Select all correct choices.

A
A clearly stated task or question
B
A useful description of the input, relevant information, and desired output
C
A precise method that transforms the input into the output
D
A specific brand of computer hardware
E
A particular programming language

Choose all

1 point

Which are advantages of a sensible modular design? Select all correct choices.

A
Smaller parts are easier to understand
B
Errors are easier to locate
C
Components can be reused
D
Different people can work on different components
E
Every system automatically becomes simpler when divided into any number of parts

Open ended

1 point

Design and describe an algorithm that determines whether a student qualifies for a certificate when the average of three scores must be at least $70$ and no individual score may be below $50$ . Include important test cases.

Choose one

1 point

A route-planning problem needs to model locations and the connections between them. Which representation most directly exposes these relationships for an algorithm?

A
A single unsorted text paragraph
B
A list containing only the names of locations
C
A graph with locations as vertices and connections as edges
D
A collection of unrelated images

Choose one

1 point

A program executes without crashing, but it reports that a student qualifies even though one score is below the required minimum. What type of error is this?

A
A missing punctuation mark prevents the program from being parsed
B
The program attempts an operation that fails while it is running
C
The program runs successfully but calculates an incorrect qualification result
D
The editor cannot open the source file

Choose one

1 point

A weather application needs to display a location, its current temperature, the weather condition, and the forecast time. Which representation best applies abstraction for this purpose?

A
A complete model of every satellite, sensor, network connection, database operation, and interface event
B
A representation containing the location, current temperature, weather condition, and forecast time
C
A list of every building, tree, and street near the user’s location
D
The electrical signals used by the computer to receive weather data

Choose one

1 point

A team is designing a library checkout system. Which plan most effectively applies decomposition?

A
Write one large procedure that handles every library action from start to finish
B
Create a separate module for every individual character displayed on the screen
C
Separate the system into identifying books, checking availability, recording checkout information, calculating due dates, and updating availability
D
Ask several programmers to implement the entire system independently without assigning responsibilities

Choose one

1 point

A programmer notices that calculating a product total, a test-score total, and a road-distance total all involve starting at zero and adding each value in a collection. What is the most appropriate use of pattern recognition?

A
Use one reusable accumulation procedure for each collection of values
B
Design three completely unrelated procedures because the contexts use different words
C
Sort every collection before adding its values
D
Replace the repeated addition with a random selection of one value

True or false

1 point

True or false: Programming and problem solving are identical because every problem-solving activity must involve writing code.

A
True
B
False

Choose one

1 point

A program must find a value in a very large list. Which statement best explains why binary search may be more efficient than a one-by-one search?

A
A one-by-one search is always faster because it uses fewer comparisons in every situation
B
Binary search works only when the list is unsorted, whereas one-by-one search requires sorted data
C
The two methods must have the same efficiency because both can find an item
D
Binary search can repeatedly discard half of a sorted list, while a one-by-one search generally examines items sequentially

Written response

1 point

In the algorithm that finds the largest number, the stored value remains the greatest value examined so far after each iteration. What is this maintained condition called?

Written response

1 point

A temperature-conversion program uses the rule $F = C \times \frac{9}{5} + 32$ . What Fahrenheit value should it produce when the input is $20$ degrees Celsius?

True or false

1 point

True or false: An algorithm can be considered satisfactory even if it works for only one specific valid input, as long as it produces the correct result for that input.

A
True
B
False

True or false

1 point

True or false: Binary search can safely be used to find an item in a list only when the list has been arranged in an appropriate sorted order.

A
True
B
False

Written response

1 point

Which algorithm property is required when a procedure must eventually stop after a finite number of steps? Enter the property name.