CSP

Consider the following numbers: The decimal value 10 The binary value 1001 Hexadecimal value C Which of the following lists the numbers in order from least to greatest?

1001,10,C

What is the decimal value of 1101 (2)

13 (10)

How many different digits are used in the Hexadecimal number system?

16

How many different values can be represented using 4 bits?

16 different values

An online store uses 8-bit binary values to identify each unique item for sale. The store plans to increase number of items it sells and is considering changing to 9-bit binary values. Which of the following best describes the result of using 9-bit values instead of 8-bit values??

2 times as many items can be uniquely identified

Suppose the ESPN website uses 8-bit unsigned integers to store how many points a team has scored in an NBA game. For example: 0000 0010 represents 2 points 0000 1000 represents 8 points What is the highest possible score the ESPN website could display?

255 (10)

A news website uses 32-bit integers to count the number of times an article has been viewed. The website is becoming more popular, and expects some of the articles to exceed the number of views that can be represented with 32 bits. In anticipation of this, the website is planning to change to 64-bit integers for the view counter. Which of the following best describes the result of using 64-bit integers instead of 32-bit integers?

2^32 times as many values can be represented

Which of the following is NOT true of how computers represent complex information?

Abstraction helps represent complex information by surfacing complexity that might otherwise be hidden

A computer program uses 3 bits to represent integers. When the program adds the decimal (base 10) numbers 6 and 2, the result is 0. Which of the following is the best explanation for this result?

An overflow error occurred.

Which number system is used to store information digitally in a computer?

Binary (base 2)

Which ASCII character is represented by the decimal (base 10) number 72?

H

Which of the following is not a benefit of using a Creative Commons license?

Less incentive to create original content.

Sam needs to send a picture via email and wants it to arrive in best quality, therefore, he should select which lossless compression image format?

PNG

The RGB encoding scheme encodes a color using 24 bit sequences. The first 8 bits encode the amount of red in the color, the next 8 bits encode the amount of green in the color, and the last 8 bits encode the amount of blue in the color. 1110 1001 0111 1100 0000 1111

The color is mostly red

A student is transferring photos from her camera to her computer. The student notices that the saved photos on her computer are lower quality than the original raw photo on her camera. Which of the following could be a possible explanation for the difference in image quality?

The saved image files were compressed with a lossy compression technique.

Which of the following is a true statement about data compression?

There are trade-offs involved in choosing a compression technique for storing and transmitting.

ASCII characters can also be represented by hexadecimal (base 16) numbers. According to the ACSII character encoding, which of the following characters is represented by the hexadecimal (base 16) number 6E

n

Which of the following is not true?

Representing data with bits is a higher level abstraction

You publish your article with a Creative Commons license. This means that what can occur?

Randy can take your article and modify it as long as he cites your original work

If a musical piece is someone's intellectual property, what can then be assumed about the piece of music?

The musical piece can be plagiarized by someone else if the creator is not cited.