APCSP Networks and the Internet

Question 1

Which of the following is the primary function of the Internet Protocol (IP)?

Accepted Answer

To manage and direct the flow of data packets between devices on a network

Answer

The Internet Protocol (IP) is a fundamental protocol for communication over the internet. Its primary function is to address and route data packets, ensuring they travel from their source to their destination across various networks. IP defines how data is packaged, addressed, and sent, acting like a postal service for the internet to direct information efficiently.

Question 2

What is the role of DNS (Domain Name System) in the operation of the internet?

Accepted Answer

It converts domain names (like www.example.com) into IP addresses

Answer

The Domain Name System (DNS) acts like the internet's phonebook. Its primary role is to translate human-readable domain names (like www.example.com) into machine-readable IP addresses (e.g., 192.0.2.1). This translation is essential for your computer to locate and connect to the correct server hosting the website you wish to access.

Question 3

What is a firewall in the context of computer networks?

Accepted Answer

A device or software that monitors and controls incoming and outgoing network traffic for security

Answer

A firewall is a network security system that monitors and controls incoming and outgoing network traffic based on predetermined security rules. It acts as a barrier between a trusted internal network and untrusted external networks, such as the internet. Its purpose is to prevent unauthorized access, block malicious attacks, and protect the network's resources.

Question 4

What does HTTPS stand for, and why is it important?

Accepted Answer

HyperText Transfer Protocol Secure; it encrypts data for secure communication over the web

Answer

HTTPS stands for HyperText Transfer Protocol Secure. It is an extension of HTTP that uses SSL/TLS encryption to secure communication over a computer network, particularly the web. This encryption protects the integrity and confidentiality of data exchanged between a user's browser and a website, preventing eavesdropping and tampering, which is crucial for online security and privacy.

Question 5

Which of the following is a primary security concern related to the Internet of Things (IoT)?

Accepted Answer

The potential for devices to be easily hacked due to poor security

Answer

IoT devices often have limited processing power and memory, making it difficult to implement robust security features. Many manufacturers prioritize cost and speed to market over security, leading to vulnerabilities like default passwords, unpatched software, and insecure communication protocols. These weaknesses make IoT devices prime targets for cyberattacks, posing significant risks to user privacy and network integrity.

(APCSP) AP Computer Science Principles Practice Test

(APCSP) AP Computer Science Principles Practice Test

APCSP Networks and the Internet