HORROR ESCAPE ROOM

csp exam

start

HORROR ESCAPE ROOM

"A ghost is trapped in this house, doomed to wander through it until he recovers all his memories.To help him find them, you must first pass all the tests and get the missingitems in your inventory.Explore the house and try not to get trapped yourself too..."

Introduction

Explore the house

Inventory

It's closed...

It's too dark...

Open inventory...

Three different numbers need to be placed in order from least to greatest. For example, if the numbers are ordered 9, 16, 4, they should be reordered as 4, 9, 16. Which of the following algorithms can be used to place any three numbers in the correct order?

01

If the first number is greater than the middle number, swap them. Then, if the middle number is greater than the last number, swap them. Then, if the first number is greater than the last number, swap them.

If the first number is greater than the middle number, swap them. Then, if the middle number is greater than the last number, swap them. Then, if the first number is greater than the middle number, swap them.

If the first number is greater than the middle number, swap them. Then, if the middle number is greater than the last number, swap them.

Which of the following is a benefit of using a list as a data abstraction in a program?

Lists are used to store all input data so that there is a running record of all user input.

02

Lists often allow their size to be easily updated to hold as many data values as needed.

Lists prevent duplicate data values from appearing in the list.

Which of the following best explains the ability to solve problems algorithmically?

Any problem can be solved algorithmically, though some algorithmic solutions must be executed on multiple devices in parallel.

03

Any problem can be solved algorithmically, though some algorithmic solutions may require humans to validate the results.

There exist some problems that cannot be solved algorithmically using any computer.

A certain programming language uses 4-bit binary sequences to represent nonnegative integers. For example, the binary sequence 0101 represents the corresponding decimal value 5. Using this programming language, a programmer attempts to add the decimal values 14 and 15 and assign the sum to the variable total. Which of the following best describes the result of this operation?

A round-off error will occur because the decimal values 14 and 15 are represented as approximations due to the fixed number of bits used to represent numbers.

An overflow error will occur because 4 bits is not large enough to represent 29, the sum of 14 and 15.

An overflow error will occur because 4 bits is not large enough to represent either of the values 14 or 15.

04

It's not correct...

Find the key to continue

Continue exploring the house

Inventory

It's too dark...

Inventario abierto...

Which of the following best describes a challenge involved in using a parallel computing solution?

A parallel computing solution may not be appropriate for an algorithm in which each step requires the output from the preceding step.

A parallel computing solution may not be appropriate for an algorithm in which the same formula is applied to many numeric data elements.

01

A parallel computing solution may not be appropriate for an algorithm that can be easily broken down into small independent tasks.

A parallel computing solution may not be appropriate for an algorithm that searches for occurrences of a key word in a large number of documents.

02

Determining the number of people that appear in the photo

Determining the likelihood that the photo was taken at a particular public event

Determining the likelihood that the photo is a picture of the sky

Determining the usability of the photo for projection onto a particular color background

A digital photo file contains data representing the level of red, green, and blue for each pixel in the photo. It also contains metadata that describes the date and geographic location where the photo was taken. For which of the following goals would analyzing the metadata be more appropriate than analyzing the data?

03

An application that allows users to purchase tickets for a local museum

An application that allows users to convert measurement units (e.g., inches to centimeters, ounces to liters)

An application that allows users to compress the pictures on their devices to optimize storage space

An application that allows users to view descriptions and photographs of local landmarks

Which of the following applications is most likely to benefit from the use of crowdsourcing?

04

number

Boolean

list

string

The variable age is to be used to represent a person’s age, in years. Which of the following is the most appropriate data type for age ?

You found asecret message

♪♬ø

Remember these notes and play them on the piano in the correct order

♯

♬

♩

♫

♪

ø

01

...Keep playing

♯

♬

♩

♫

♪

ø

02

...One more

♯

♬

♩

♫

♪

ø

03

Try again...

✘

✘

✘

✘

✘

✘

You found a new item for your inventory

Inventory

♪♬ø

Continue exploring the house

Inventario abierto...

Use the magnifying glass to find the code and then insert it into the typewriter.

224

Someone is there!

A teacher is writing a code segment that will use variables to represent a student’s name and whether or not the student is currently absent. Which of the following variables are most appropriate for the code segment?

01

A string variable named s and a Boolean variable named a

A string variable named studentName and a Boolean variable named isAbsent

A string variable named studentName and a numeric variable named numAbsences

A certain social media application is popular with people across the United States. The developers of the application are updating the algorithm used by the application to introduce a new feature that allows users of the application with similar interests to connect with one another. Which of the following strategies is LEAST likely to introduce bias into the application?

02

Inviting a random sample of all users to try out the new algorithm and provide feedback before it is released to a wider audience

Enticing users to spend more time using the application by providing the updated algorithm for users who use the application at least ten hours per week

Testing the updated algorithm with a small number of users in the city where the developers are located so that immediate feedback can be gathered

A researcher wants to publish the results of a study in an open access journal. Which of the following is a direct benefit of publishing the results in this type of publication?

The researcher can better anticipate the effect of the results and ensure that they are used responsibly.

The researcher can allow the results to be easily obtained by other researchers and members of the general public.

The researcher can ensure that any personal information contained in the journal is kept private and secure.

03

A briefcase appeared...

congratulations

You've recovered all the ghost's memories! Now he can finally rest and you can escape from the house!

You will lose all the progress so far...

Sure you wantto go out?

Exit

Back

Inventory

Inventory

♪♬ø

Inventory

♪♬ø

Inventory

♪♬ø

Inventory

Oh, no. You've failed...