Computer Science Principles - Spring ['25] Final Exam

What is a pixel?

• A network protocol

• A type of data compression

• A programming language

• The fundamental unit of a digital image

Why do we compress data?

I. To save memory space on devices
II. To speed up the time it takes to send a file over the internet
III. The computation it takes to decompress data is cheaper than the storage space required to store uncompressed data

• I Only

• I and II

• I, II, and III

• III Only

What is the Internet?

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

• A set of rules governing the exchange or transmission of data between devices.

• 1,000,000 (one million) or 10^6 bytes

• To link together or join. Typically used when joining together text Strings in programming (e.g. "Hello, "+name)

Which of the following best explains what happens when a new device is connected to the Internet?

• A device driver is assigned to the device.

• An Internet Protocol (IP) address is assigned to the device.

• A packet number is assigned to the device.

• A website is assigned to the device.

Which of the following are true about Internet routing?

I. For any two points on the Internet, there exists only one path between the two points
II. Routing on the Internet is fault-tolerant and redundant

1. 
   

• I Only

• II Only

• Both I and II

• Neither I or II

What is the sampling rate?

• The number of bits per sample

• The speed of data transmission

• The time interval between sampling points

• The frequency of data compression

Conditionals are _____

• A person who uses technology to gain unauthorized access to data.

• Statements that run under only certain conditions

• The process of reducing the number of gates needed to implement a circuit.

• A group of volunteers, private citizens, government officials, etc. who promote internet standards

• Which of the following best describes distributed computing?

• 1. Distributed computing involves a single computer solving a problem using multiple processors.

• 1. Distributed computing involves multiple computers working together over a network to solve a problem.

• 1. Distributed computing involves multiple computers working independently on different problems.

• 1. Distributed computing involves a single computer solving a problem using a single processor.

What is a byte?

• 16 bits

• 4 bits

• 8 bits

• 32 bits

What is the digital divide?

• A network protocol

• A type of data compression

• The difference between digital and analog signals

• The gap between those with and without access to computers and the Internet