The Internet - APCSP

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

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1

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

An Internet Protocol (IP) address is assigned to the device.

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2

Which of the following activities poses the greatest personal cybersecurity risk?

Purchasing a couch by emailing a credit card number to the couch owner.

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3

Which of the following is LEAST likely to indicate a phishing attack?

An email from your water utility company asks you to enter your date of birth and social security number for verification purposes.

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4

Which of the following is considered an unethical use of computer resources?

Searching online for the answers to CodeHS exercises and quizzes.

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5

Which of the following are true statements about digital certificates in Web browsers?

I and II

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6

According to the domain name system (DNS), which of the following is a subdomain of the domain example.com?

about.example.com

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7

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 back to the user?

The file is broken into packets and sent over a network. The packets must be reassembled by the user's computer when they are received. If any packets are missing, the browser re-requests the missing packets.

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8

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

The ability to provide data transmission even when some connections between routers have failed

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9

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 whether these two computers can communicate with each other across the Internet?

The computers can communicate directly because Internet communication uses standard protocols that are used by all computers on the Internet.

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10

A city government is attempting to reduce the digital divide between groups with differing access to computing and the Internet.

The network is considered fault-tolerant because there are redundant paths between each pair of devices.

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11

Which of the following actions is LEAST likely to be effective in this purpose?

Putting helpful tips for operating computers on the city government website.

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12

An IPv4 address has 32 bits, so there are 232 (over 4 billion) possible IPv4 addresses. Since the Internet is gaining devices quickly, we will soon surpass 232 unique devices on the Internet.

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13

In anticipation of all the new Internet devices, we are in the process of switching to IPv6, which uses 128 bits for a single address. That's 96 extra bits to represent one address!

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14

Which of the following statements correctly describes how many more addresses will be possible to represent by switching from IPv4 to IPv6?

2^96 times as many addresses can be represented with IPv6.

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15

Which of the following would pose the greatest threat to a user's personal privacy if it were to be leaked to the public?

The user's browser cookies.

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16

What is a Distributed Denial of Service (DDoS) attack?

An attempt to deny access to a website by flooding the website's servers with millions of requests from different computers.

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17

Which of the following is a benefit that online shopping websites provide over brick and mortar stores?

Users can easily see product reviews and determine if an item has been satisfactory for a large number of people.

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18

Consider the following network diagram:

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19

Each box represents a device connected to the network, each line represents a direct connection between two devices.

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20

Which of the following statements are true about this network:

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21

I - The network is fault tolerant. If one connection fails, any two devices can still communicate.

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22

II - Computers C and E need to first communicate with at least one other device in order to communicate with each other.

I only

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