APCSP Internet Architecture 2

Question 1

Which protocol is responsible for breaking data into packets and routing them across the internet?

Accepted Answer

IP

Answer

IP (Internet Protocol) handles addressing and routing packets across networks.

Question 2

What does DNS stand for and what is its primary function?

Accepted Answer

Domain Name System; translates domain names to IP addresses

Answer

DNS translates human-readable domain names like 'example.com' into numeric IP addresses.

Question 3

A web server at IP address 203.0.113.5 receives a request. Which layer of the TCP/IP model handles delivering this packet to the correct application on that server?

Accepted Answer

Transport layer

Answer

The transport layer uses port numbers to deliver data to the correct application process.

Question 4

Which of the following best describes 'fault tolerance' in the context of internet architecture?

Accepted Answer

The internet continues to function even when some nodes or connections fail

Answer

Fault tolerance means the network can reroute traffic around failures so communication continues.

Question 5

What is the purpose of a subnet mask in networking?

Accepted Answer

It determines which portion of an IP address identifies the network vs. the host

Answer

A subnet mask separates the network portion from the host portion of an IP address.

(APCSP) AP Computer Science Principles Practice Test

(APCSP) AP Computer Science Principles Practice Test

APCSP Internet Architecture 2