AP COMPUTER SCIENCE PRINCIPLES Unit 2 Exam – The Internet

A local business upgrades its network to increase the network’s bandwidth. Which of the following best explains the benefit of increased bandwidth?

• the network will be more fault-tolerant

• the speed at which files are sent and received increases

• the files transmitted on the network are more secure

• the devices no longer require IP addresses to send and receive data

Which of the following best describes the role of an Internet Protocol (IP) address?

• a. a unique numerical address provided to every device connected to the Internet

• b. A code used to identify the physical location of a device on the Internet.

Which of the following refers to the process of finding a path from sender to receiver?

• routing

• domain name system (DNS)

• HyperText Transfer Protocol (HTTP)

• fault-tolerance

Which of the following best describes a path in computing?

• the type of programming language used to create software applications

• the physical location of a computing device within a network

• the speed at which data travels between sender and receiver

• a sequence of directly connected computing devices that begins at the sender and ends at the receiver

Which of the following measurements most likely refers to bandwidth?

• a. a download speed, such as 42 megabytes per second

• b. the number of pixels in a computer monitor's display, such as 1920x1080

• c. the size of a computer's hard drive, such as 1 terabyte

• d. The amount of RAM (memory) in a computer, such as 8 gigabytes

Which of the following is a subdomain of the domain cnn.com?

• cnn.net
• 2. breakingnews.cnn.com

• 1. cnn.com/breakingnews

• 1. cnn.com.org

Which of the following best describes the role of the Domain Name System (DNS)?

• the address book of the internet that translates human-friendly domain names into numerical IP addresses that computers understand

• a type of software used to protect computers from malware and viruses

• a physical device that connects computers to the internet

• a method for encrypting data during internet communication

Which of the following best describes the nature of the protocols used on the internet?

• the protocols are closed, which allows only large technology companies like Apple and Google to build Internet-connected devices

• the protocols used are open, which allows any manufacturer to build devices that can connect to the Internet

• the protocols are both open and closed, which allows a select number of companies to build devices that can connect to the Internet

• the protocols are closed, which makes the Internet secure

Which of the following best explains the role of transmission control protocol (TCP) and Internet Protocol (IP)?

• to provide a standard for sending and receive messages using packets on the Internet

• to increase a network’s bandwidth to an acceptable rate

• to ensure the Internet remains fault-tolerant

• to provide subdomain names from the domain name system (DNS)

Which of the following best explains the design of the Internet?

• the Internet is centralized, so if a certain connections fail, the system will fail

• the Internet is decentralized, but if a single connection fails, the network will no longer function

• the Internet is decentralized, so if a single connection fails, the network can remain functional

• the Internet is centralized, so the connections at the center are most vital