APCSP Midterm

Jorge is sending a large image file to a friend as part of a shared classroom project. Which of the following is most likely true if Jorge opts to compress the image before sending it?

• The image can no longer be represented using bits.

• The image will have been converted into an analog form.

• The image will require more pixels to display it on the screen.

• The image will require fewer bits in order to be represented.

Lucy is completing a project as part of a science class using materials she found online. Which of the following is MOST LIKELY to lead to legal consequences?

• Modifying a piece of open source software.

• Using open access research for which she does not acquire a license.

• Failing to publish her work under a Creative Commons license.

• Using images posted online by another student without permission or citation.

Arman takes a picture with his smartphone which he subsequently posts online. Beatrice finds the picture online and posts a copy of it on her website with an attached Creative Commons license. Which of the following best describes who owns the photo?

• Beatrice owns the photo because only holders of a Creative Commons license can own works online.

• Arman owns the photo because he was the original creator and did not license the work.

• Arman owns the photo because it was granted a Creative Commons license by another person online.

• Both own the photo because creating a copy makes it her intellectual property.

The smallest unit of data in a computer, represented by a 0 or 1.

• Bit

• Byte

• Binary

• Digit

Convert the binary number 00110001 to decimal.

• 32

• 121

• 64

• 49

Convert the decimal number 68 to binary.

• 01000100

• 01100001

• 01000011

• 01011001

Error from attempting to represent a number that is too large.

• Overflow error

• Underflow error

• Roundoff error

• Debugging error

Abstraction

• A simplified representations of something more complex. This lets us hide the details and instead focus on problems at a higher level.

• American Standard Code for Information Interchange; the universally recognized raw text format that any computer can understand.

• A group of computers and servers that are connected to each other.

• Having multiple backups to ensure reliability during cases of high usage or failure.

Data with values that change continuously, or smoothly, over time.

Some examples of analog data include music, colors of a painting, or position of a

sprinter during a race.

• Analog Data

• Digital Data

• Sampling

• Metadata

Data that changes discreetly through a finite set of possible values

• Analog Data

• Digital Data

• Sampling

• Metadata