Unit 2- AP Computer Science Principles
exam questions with answers
1. Match the following terms with their definitions -Correct Answer-computing device-a machine that
can run a program.
computing system-a group of connected computers that can send or receive data.
computing network-a group of computers working together for a common purpose.
path-a sequence of direct connects.
2. Which of the following best describes the protocols used on the Internet?
A. The protocols of the Internet are designed by government agencies to ensure they remain free to use
B. The protocols of the Internet are secret to maintain the privacy and security of people using them
C. Each device connected to the Internet will use a protocol designed by the company that manufactured
it
D. The protocols of the Internet are open and used by all devices connected to the network -Correct
Answer-D. The protocols of the Internet are open and used by all devices connected to the network.
3. Jesse purchases a new smartphone and is immediately able to use it to send a photo over the Internet
to a friend who lives in a different country. Which of the following is NOT necessary to make this
possible?
A. Both devices are using the same shared and open protocols
B. A single direct connection is established between any two devices connected to the Internet
C. The data of the image is routed through a sequence of directly connected devices before arriving at its
destination.
D. Both devices are directly connected to at least one part of the Internet -Correct Answer-B. A single
direct connection is established between any two devices connected to the Internet.
4. What is the minimum number of paths broken to prevent device A from connecting with device E?
A.1
B.2
C.3
D.4 -Correct Answer-C.3
, 5. Device A is attempting to send data over to device E. Which of the following is true of how the data
will travel through the network?
A. The data will always travel through device B as it is the shortest path.
B. The data will never be sent through device G since their are other shorter paths available.
C. It is possible that the data will travel through any of the devices in the network before arriving at
device E.
D. If the data travels through device D then it will not travel through device E. -Correct Answer-C. It is
possible that the data will travel through any of the devices in the network before arriving at device E.
6. Which of the following is true of how the Internet has responded to the increasing number of devices
now using the network?
A. The Internet protocols are changed every year to adapt to the new devices that have been connected
to the network
B. While the number of devices connected to the Internet has grown, the network itself has not grown
C. The protocols of the Internet were designed to scale as new devices are added
D. The protocols of the Internet are no longer necessary thanks to the large number of devices now
connected to the network -Correct Answer-C. The protocols of the Internet were designed to scale as
new devices are added
7. Which of the following is true of how packets are sent through the Internet?
A. Packet metadata is only included on important packets to indicate they should get access to faster
paths through the network
B. Packet metadata is used to route and reassemble information travelling through the Internet
C. Information sent through the internet is only encapsulated in packets if the message is too large to be
sent as a datastream
D. Information sent through the internet is split into two packets, one which contains the message and
another which contains the metadata -Correct Answer-B. Packet metadata is used to route and
reassemble information travelling through the Internet
8. Emilee is watching an online video. The video is being sent to her laptop by a server over the Internet
which splits the video into packets and sends them in the order they appear in the video. Which of the
following is true about how the packets will arrive at her computer?
exam questions with answers
1. Match the following terms with their definitions -Correct Answer-computing device-a machine that
can run a program.
computing system-a group of connected computers that can send or receive data.
computing network-a group of computers working together for a common purpose.
path-a sequence of direct connects.
2. Which of the following best describes the protocols used on the Internet?
A. The protocols of the Internet are designed by government agencies to ensure they remain free to use
B. The protocols of the Internet are secret to maintain the privacy and security of people using them
C. Each device connected to the Internet will use a protocol designed by the company that manufactured
it
D. The protocols of the Internet are open and used by all devices connected to the network -Correct
Answer-D. The protocols of the Internet are open and used by all devices connected to the network.
3. Jesse purchases a new smartphone and is immediately able to use it to send a photo over the Internet
to a friend who lives in a different country. Which of the following is NOT necessary to make this
possible?
A. Both devices are using the same shared and open protocols
B. A single direct connection is established between any two devices connected to the Internet
C. The data of the image is routed through a sequence of directly connected devices before arriving at its
destination.
D. Both devices are directly connected to at least one part of the Internet -Correct Answer-B. A single
direct connection is established between any two devices connected to the Internet.
4. What is the minimum number of paths broken to prevent device A from connecting with device E?
A.1
B.2
C.3
D.4 -Correct Answer-C.3
, 5. Device A is attempting to send data over to device E. Which of the following is true of how the data
will travel through the network?
A. The data will always travel through device B as it is the shortest path.
B. The data will never be sent through device G since their are other shorter paths available.
C. It is possible that the data will travel through any of the devices in the network before arriving at
device E.
D. If the data travels through device D then it will not travel through device E. -Correct Answer-C. It is
possible that the data will travel through any of the devices in the network before arriving at device E.
6. Which of the following is true of how the Internet has responded to the increasing number of devices
now using the network?
A. The Internet protocols are changed every year to adapt to the new devices that have been connected
to the network
B. While the number of devices connected to the Internet has grown, the network itself has not grown
C. The protocols of the Internet were designed to scale as new devices are added
D. The protocols of the Internet are no longer necessary thanks to the large number of devices now
connected to the network -Correct Answer-C. The protocols of the Internet were designed to scale as
new devices are added
7. Which of the following is true of how packets are sent through the Internet?
A. Packet metadata is only included on important packets to indicate they should get access to faster
paths through the network
B. Packet metadata is used to route and reassemble information travelling through the Internet
C. Information sent through the internet is only encapsulated in packets if the message is too large to be
sent as a datastream
D. Information sent through the internet is split into two packets, one which contains the message and
another which contains the metadata -Correct Answer-B. Packet metadata is used to route and
reassemble information travelling through the Internet
8. Emilee is watching an online video. The video is being sent to her laptop by a server over the Internet
which splits the video into packets and sends them in the order they appear in the video. Which of the
following is true about how the packets will arrive at her computer?
