AP Computer Science Principles Unit 3: The Internet MC Practice Questions

What is a computer network?

A way to connect devices to share data

What are the connected steps between a sending and a receiving location called?

A path

What is bandwidth?

The amount of data that can be sent in a fixed period of time

Why is Internet routing usually dynamic?

So that if a path on the route is congested or not working, a new path can be assigned

What is the name for the protocol that handles processing at the sending and receiving locations?

Transmission Control Protocol

What is the number assigned to devices on the Internet?

Internet Protocol address

How do packets know how to get to their destination?

The destination IP address is included in each packet.

Why is the Internet considered to be fault-tolerant?

It has duplicate paths to all locations.

What is the World Wide Web?

A way to search for and share documents and resources

What can be determined by comparing the time it takes different systems to complete the same task?

Efficiency

A parallel computing system uses multiple computers to run

sections of the program at the same time

Which computing system can process larger datasets when multiple devices are combined because of the additional memory and storage provided?

Distributed

Which of the following is true about packets?

Packets travel along different paths to their destination.

Given the network in the diagram, what is an available path for A and B if the link between A and B is down?

A → C → B

What could be added to the diagram to provide redundancy?

An additional path between A and D

Which of the following is false about HTTPS?

HTTPS trades faster performance for more security.

Why is there a limit to adding additional devices to a parallel system?

The amount of time the sequential part takes to run cannot be shortened by adding devices.

A help center article for a video conferencing service lists recommended bandwidth requirements for meetings as follows:

• For high-quality video: 600 <UNIT>

• For screen sharing only: 75 <UNIT>

• For audio call only: 80 <UNIT>

What would be the most appropriate unit to replace <UNIT>?

 Kilobits per second

Which statement is true about computing devices in a computer network?

Each computing device must be able to send data to the other computing devices.

Feiya has several computing devices around the home that are connected to the Internet. Which of Feiya’s devices use the Internet Protocol (IP) when sending data through the Internet?

All of the devices

What is the benefit of networking computing devices together in a smart home?

 The computing devices can transfer data to each other.

What is the relationship between the Internet and the World Wide Web?

The World Wide Web is built on top of the Internet.

The Internet Protocol (IP) describes how packets are sent from a sender to a receiver. First, the sender creates an IP packet with the destination IP address in the packet header. Which of these sequences correctly describe the next steps in routing that packet?

The sender sends the packet to the nearest router. The router looks in a forwarding table to find a router that will get the packet closer to its destination and sends the packet to that router. Each subsequent router uses their forwarding table to pick the next router.

Aliana is comparing the bandwidth of ConnectPlus and SuperSonic internet providers. ConnectPlus offers 100 Mbps, while SuperSonic provides 1,000 Mbps. How much data can be transferred over ConnectPlus as compared to SuperSonic?

ConnectPlus can transfer 10% of the data per second compared to SuperSonic.

When do Internet-connected computing devices use the Internet Protocol (IP)?

It is used whenever two computing devices send data to each other over the Internet.

Which of these situations describes a computer network?

A company gives every employee a desktop computer and connects each of the computers to each other using wires, so that they can quickly transfer files and messages.