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Internet
The Internet connects devices and networks all over the world
The Internet helps people collaborate to solve problems
The Internet helps people communicate
What is the latency of a system?
The time it takes for a bit to travel from sender to receiver
How is the bandwidth of a network measured
Bitrate. Higher bitrate means higher bandwidth.
What is the bitrate of a system
The amount of data (in bits) that can be sent in a fixed amount of time
What is the Internet Protocol (IP)?
A protocol that defines the structure of an Internet address and assigns a unique address to every device on the Internet
Suppose we used an Internet Addressing protocol that used 4 bits to encode a single address. How many devices would be supported on the Internet? How many unique addresses would there be?
16
What does URL stand for?
Uniform Resource Locator
What is the first step of viewing a web page as described in the video?
The URL: You type the URL for the web page into your browser
What is the second step of viewing a web page as described in the video?
The Request: The browser sends a message to a server requesting a resource
What is the third step of viewing a web page as described in the video?
The Response: The server sends a response to the browser with the resource attached
What is the fourth step of viewing a web page as described in the video?
Rendering the Page: Your browser takes the resource and renders it in the browser window
What is the function of the Domain Name System (DNS)
To translate domain names into IP addresses
According to the Domain Name System (DNS), which of the following is a subdomain of the domain example.com
Internet routing
Routing on the Internet is fault tolerant and redundant
What information is contained in a packet?
A small part of a digital message, and metadata about the message, including where it came from and where it is going
Which is true of sequential computing?
It can be easier to locate errors in programs using this processing method.
Which is true of parallel computing?
There are multiple processors running at the same time.
What is a DNS spoofing attack?
A hacker overwrites the data for a given domain name in a DNS server, causing the IP for that domain to point to the hackerâs website rather than the intended website
What is the purpose of the Digital Millennium Copyright Act?
To criminalize the act of circumventing, or getting around, access controls that block access to copyrighted works.
Which of the following lists the types of copyright license from most restrictive to least restrictive?
All Rights Reserved, Some Rights Reserved, Public Domain
Which of the following actions will help you avoid violation of copyright laws?
Always cite sources
Check the copyright to make sure it can be used by others without permission
Use public domain media