Internet Architecture Flashcards
7 cards from real APCSP practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.
Read the first 7 Internet Architecture flashcards as text
Which protocol is responsible for breaking data into packets and routing them across the internet?
Answer: IP
IP (Internet Protocol) handles addressing and routing packets across networks.
What does DNS stand for and what is its primary function?
Answer: Domain Name System; translates domain names to IP addresses
DNS translates human-readable domain names like 'example.com' into numeric IP addresses.
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?
Answer: Transport layer
The transport layer uses port numbers to deliver data to the correct application process.
Which of the following best describes 'fault tolerance' in the context of internet architecture?
Answer: The internet continues to function even when some nodes or connections fail
Fault tolerance means the network can reroute traffic around failures so communication continues.
What is the purpose of a subnet mask in networking?
Answer: It determines which portion of an IP address identifies the network vs. the host
A subnet mask separates the network portion from the host portion of an IP address.
Which statement about IPv6 is accurate compared to IPv4?
Answer: IPv6 uses 128-bit addresses, vastly expanding the available address space
IPv6 uses 128-bit addresses, providing approximately 3.4×10^38 unique addresses compared to IPv4's ~4.3 billion.
In packet switching, what happens when a packet arrives at a router and the preferred route is congested?
Answer: The router can forward the packet along an alternate path
Routers can dynamically select alternate paths when preferred routes are congested, a key feature of packet switching.