1 / 2
AP Computer Science Principles: Unit 8 Test with Verified Answers
When data is sent over the internet, it is broken into
chunks called ____________, - ANSWER -Packets
1. The data being transmitted
2. Control information for routing the data -
ANSWER -What do packets contain?
Packets can take any route, as long as they eventually get
to the destination - ANSWER -Routing
1. Not necessarily the shortest route
2. Not necessarily in order - gets reconstructed -
ANSWER -Routing destinations
TCP & UDP - ANSWER -Internet Protocol (IP) traffic
SMTP, IMAP, POP3 - ANSWER -Standards for
email communication
HTTP, FTP, and SSL/TLS - ANSWER -Standards
for communicating between browsers and web servers
Standards are developed and overseen by -
ANSWER -Internet Engineering Task Force (IETF)
good for applications that require high reliability.
It is a connection-based protocol, where there is back-
and-forth communication to make sure the packets have
been received properly. - ANSWER -TCP
good for applications that need to be responsive but not
necessarily as reliable. For example, online games or
VOIP (voice chat).
It is a connectionless protocol that does not verify whether
the packets got there, or whether they got there in the
right order. - ANSWER -UDP
Each device connected to the internet is assigned an
__________ address. They are hierarchical. -
ANSWER -IP
Translates domain names to IP addresses. Also
hierarchical. - ANSWER -DNS
Service that provides storage space and other resources
on the internet. The data could be anywhere, and you can
access it anywhere. - ANSWER -Cloud computing
a small text file that a web server stores on your computer.
It generally stores pieces of information related to your
previous interactions with the website. - ANSWER -
Cookies
1. User preferences
2. Shopping carts
3. How long you viewed a web page - ANSWER -A
cookie might store...
A cookie is not a program and does not execute anything
on your computer, and it cannot collect personal
information about you or your machine. - ANSWER -
Common misconception:
A downloaded file could be infected with malware -
ANSWER -Software
A physical device infected with malware could be plugged
into a computer - ANSWER -Hardware
People can be tricked into giving up sensitive information -
ANSWER -Human
Any malicious software - ANSWER -Malware
Viruses, Worms, Trojans - ANSWER -Malware
examples
attacks flood a computer with requests from multiple
systems until it cannot handle the load and crashes. -
ANSWER -DDoS Attacks (Distributed Denial of
Service)
Most commonly, an attacker computer will call on "zombie"
computers, which will all bombard the victim. -
