4Mp AP CSP Review

A computing device is

• a group of computers working together for a common purpose

• a machine that can run a program

• a sequence of direct connections

• a bunch of hardware put together

a computing network is

• a sequence of direct connections

• a machine that can run a program

• a group of connected computers that can send or receive data

• a group of computers working together for a common purpose

Which of the following best describes the protocols used on the Internet?

• The protocols of the Internet are designed by government agencies to ensure they remain free to use

• The protocols of the Internet are secret to maintain the privacy and security of people using them

• Each device connected to the Internet will use a protocol designed by the company that manufactured it

• The protocols of the Internet are open and used by all devices connected to the network

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?

• Both devices are using the same shared and open protocols

• A single direct connection is established between any two devices connected to the Internet

• The data of the image is routed through a sequence of directly connected devices before arriving at its destination.

• Both devices are directly connected to at least one part of the Internet

Which of the following is true of how the Internet has responded to the increasing number of devices now using the network?

• The Internet protocols are changed every year to adapt to the new devices that have been connected to the network

• While the number of devices connected to the Internet has grown, the network itself has not grown

• The protocols of the Internet were designed to scale as new devices are added

• The protocols of the Internet are no longer necessary thanks to the large number of devices now connected to the network

Which of the following is true of how packets are sent through the Internet?

• Packet metadata is only included on important packets to indicate they should get access to faster paths through the network

• Packet metadata is used to route and reassemble information travelling through the Internet

• Information sent through the internet is only encapsulated in packets if the message is too large to be sent as a datastream

• Information sent through the internet is split into two packets, one which contains the message and another which contains the metadata

  Answer

Two devices are connected to the Internet and communicating with one another. A squirrel chews through one of the wires in the network that is currently being used by the devices to communicate. The network immediately begins using a different path through the network and communication continues as normal.

This situation best exemplifies which principle?

• fault-tolerance

• scalability

• protocol

• pathing

An Internet Service Provider (ISP) is a company that builds the routers and wired connections that allow individuals to access the Internet.

An ISP is considering adding additional redundant connections to its network. Which of the following best describes why the company would choose to do so?

• It costs less to design a network that is redundant

• The protocols of the Internet only work on networks that are redundant

• Redundant networks are more reliable

• Adding additional connections reduces the fault-tolerance of the network

What was your favorite part of AP CSP this year?

• The teacher :)

• coding

• learning about the internet

• learning about computers

• nothing, I don't like computers

Which of the following best describes how computing devices represent information?

• A computer will either represent information as bits or bytes but not both

• A computer represents data as a byte which is either a 0 or a 1

• A computer represents data as bits which is either a 0 or a 1

• A computer represents information as bits which contain 8 bytes.