AP Computer Science Principles - Big Idea 4 Computer Systems and Networks Practice Test

1. Question

Which of the following best explains what happens when a new device is connected to the Internet?

A device driver is assigned to the device.
An Internet Protocol (IP) address is assigned to the device.
A packet number is assigned to the device.
A Web site is assigned to the device.

2. Question

A user enters a Web address in a browser, and a request for a file is sent to a Web server. Which of the following best describes how the file is sent to the user?

The file is broken into packets for transmission. The packets must be reassembled upon receipt.
The file is broken into packets for transmission. The user’s browser must request each packet in order until all packets are received.
The server attempts to connect directly to the user’s computer. If the connection is successful, the entire file is sent. If the connection is unsuccessful, an error message is sent to the user.
The server repeatedly attempts to connect directly to the user’s computer until a connection is made. Once the connection is made, the entire file is sent.

3. Question

An Internet service provider (ISP) is considering an update to its servers that would save copies of the Web pages most frequently visited by each user. Which of the following is LEAST likely to occur as a result of the update?

Average response time for user requests might decrease
Privacy of users might be negatively affected
Storage requirements for the servers might increase.
Web sites that are not visited frequently might no longer be accessible to users.

4. Question

Which of the following is a characteristic of the fault-tolerant nature of routing on the Internet?

The ability to use a hierarchical naming system to avoid naming conflicts
The ability to provide data transmission even when some connections have failed
The ability to resolve errors in domain name system (DNS) lookups
The ability to use multiple protocols such as hypertext transfer protocol (HTTP), Internet protocol (IP), and simple mail transfer protocol (SMTP) to transfer data

5. Question

Two computers are built by different manufacturers. One is running a Web server and the other is running a Web browser. Which of the following best describes the ability of the two computers to communicate with each other across the Internet?

The computers cannot communicate because different manufacturers use different communication protocols.
The computers can communicate, but additional hardware is needed to convert data packets from one computer’s protocol to the other computer’s protocol.
The computers can communicate directly because Internet communication uses standard protocols.
The computers can communicate directly only if the messages consist of text; other formats cannot be interpreted across computers.

6. Question

A city government is attempting to reduce the digital divide between groups with differing access to computing and the Internet. Which of the following activities is LEAST likely to be effective in this purpose?

Holding basic computer classes at community centers
Providing free wireless Internet connections at locations in low-income neighborhoods
Putting all government forms on the city Web site
Requiring that every city school has computers that meet a minimum hardware and software standard.

7. Question

A user clicks on a website, and it begins to load immediately, but it takes a long time to load completely and pictures appear slowly, one by one. Which of the following is demonstrated through this situation?

High bandwidth, high latency
Low bandwidth, high latency
High bandwidth, low latency
Low bandwidth, low latency

8. Question

Which of the following BEST describes how protocols on the Internet (e.g. IP, TCP, HTTP) make use of abstraction to accomplish their respective purposes?

Low level protocols can provide functionality to high level protocols without revealing the details of how this is accomplished.
High level protocols take into account specific implementation details of lower level protocols to ensure they are compatible.
Low level protocols are written in binary while high level protocols are written hexadecimal
High level protocols can take on the role of a low level protocol in the event of failure in the system.

9. Question

Which of the following is NOT true about TCP/IP packets?

Packets are numbered so if they arrive out of order the message can be reassembled.
TCP guarantees that no packets are ever dropped
Packets can be routed on different paths from sender to receiver.
Messages are broken into packets to improve reliability of the internet.

10. Question

How does a computer resolve a domain name into an IP address?

It asks a DNS server for the corresponding IP address
It scans addresses until it finds the one it’s looking for
It uses a Border Gateway Protocol to get the address from a nearby computer.
It creates an IP address for the domain, and shares it with the closest DNS.

11. Question

Transmission capacity measure by bit rate is the _____________.

Bandwidth
Latency
Binary message
Protocol

12. Question

Small chunks of information that have been carefully formed from larger chunks of information

Protocols
IP Addresses
Packets
Routers

13. Question

Which statement is true about routing on the Internet?

Information travelling between two computers over the Internet will always take the same path.
A packet travelling between two computers on the Internet may be rerouted many times along the way
There is one router which receives and redirects all the traffic of the Internet.
A packet contains addressing information to allow routers to decide how best to forward along that packet towards its destination.

14. Question

______________ provides reliable, ordered, and error-checked delivery of a stream of packets on the internet.

Internet Task Force
Transmission Control Protocol
The Internet Service Provider
World Wide Web

15. Question

Which of the following best describes the basic idea of fault tolerance?

A system that never fails
If part of the system fails, the operation continues without interruption
A program that does not allow inputs out of a range given by a programmer
A program that does not allow loss of precision

16. Question

What does protocol mean?

Rules
Security
Orders
Services

17. Question

It is the inclusion of extra components that can be used to mitigate failure of a system if other components fail

Redundancy
Fault-tolerant
Data stream
Parallel computing

18. Question

__________ is a computational model in which operations are performed in order one at a time.

Sequential Computing
Parallel computing
Distributed computing
Efficiency

19. Question

_________ is a computational model in which multiple devices are used to run a program.

Sequential Computing
Parallel Computing
Distributed Computing
Efficiency

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AP Computer Science Principles – Big Idea 4 Computer Systems and Networks Practice Test

AP Computer Science Principles – Big Idea 4 Computer Systems and Networks Practice Test

AP Computer Science Principles – Big Idea 4 Computer Systems and Networks Practice Test

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1. Question

Which of the following best explains what happens when a new device is connected to the Internet?

2. Question

A user enters a Web address in a browser, and a request for a file is sent to a Web server. Which of the following best describes how the file is sent to the user?

3. Question

An Internet service provider (ISP) is considering an update to its servers that would save copies of the Web pages most frequently visited by each user. Which of the following is LEAST likely to occur as a result of the update?

4. Question

Which of the following is a characteristic of the fault-tolerant nature of routing on the Internet?

5. Question

Two computers are built by different manufacturers. One is running a Web server and the other is running a Web browser. Which of the following best describes the ability of the two computers to communicate with each other across the Internet?

6. Question

A city government is attempting to reduce the digital divide between groups with differing access to computing and the Internet. Which of the following activities is LEAST likely to be effective in this purpose?

7. Question

A user clicks on a website, and it begins to load immediately, but it takes a long time to load completely and pictures appear slowly, one by one. Which of the following is demonstrated through this situation?

8. Question

Which of the following BEST describes how protocols on the Internet (e.g. IP, TCP, HTTP) make use of abstraction to accomplish their respective purposes?

9. Question

Which of the following is NOT true about TCP/IP packets?

10. Question

How does a computer resolve a domain name into an IP address?

11. Question

Transmission capacity measure by bit rate is the _____________.

12. Question

Small chunks of information that have been carefully formed from larger chunks of information

13. Question

Which statement is true about routing on the Internet?

14. Question

______________ provides reliable, ordered, and error-checked delivery of a stream of packets on the internet.

15. Question

Which of the following best describes the basic idea of fault tolerance?

16. Question

What does protocol mean?

17. Question

It is the inclusion of extra components that can be used to mitigate failure of a system if other components fail

18. Question

__________ is a computational model in which operations are performed in order one at a time.

19. Question

_________ is a computational model in which multiple devices are used to run a program.