APCSP Networks and the Internet 3

Question 1

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

Accepted Answer

To translate human-readable domain names into IP addresses

Answer

DNS acts as the internet's phone book, translating domain names like 'google.com' into the numerical IP addresses computers use to communicate.

Question 2

Which characteristic of the internet's design makes it fault-tolerant?

Accepted Answer

Packets can be rerouted through alternate paths if one path fails

Answer

The internet's decentralized, redundant design allows packets to take alternate routes when a network node or connection fails, maintaining connectivity.

Question 3

What is 'latency' in a network context?

Accepted Answer

The time delay between sending a request and receiving a response

Answer

Latency is the time it takes for data to travel from the source to the destination, often measured in milliseconds.

Question 4

A webpage uses HTTPS instead of HTTP. What additional feature does HTTPS provide?

Accepted Answer

Encrypted communication between browser and server

Answer

HTTPS uses TLS/SSL encryption to secure the data transmitted between a browser and web server, protecting it from eavesdropping.

Question 5

What is a 'protocol' in the context of computer networking?

Accepted Answer

A set of rules governing how data is formatted and transmitted between devices

Answer

A network protocol is an agreed-upon set of rules that defines how devices format, transmit, and receive data across a network.

(APCSP) AP Computer Science Principles Practice Test

(APCSP) AP Computer Science Principles Practice Test

APCSP Networks and the Internet 3