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CS50 Internet Basics Overview Key Terms Quiz

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Questions and Answers

What is the function of an IP address?

To display web content in browsers
To ensure high-speed internet connectivity
To serve as a unique identifier for devices on the Internet (correct)
To encrypt data transmitted over the Internet

What range do the numbers in an IP address fall within?

1 to 256
100 to 300
0 to 255 (correct)
0 to 1000

What is used to translate domain names into IP addresses?

DNS (correct)
URL
DHCP
TCP

What does DHCP stand for?

Dynamic Host Configuration Protocol (D) Signup and view all the answers

What protocol is used for transferring web content over the Internet?

HTTP (C) Signup and view all the answers

What is the new IP address scheme that will replace the 32-bit IPv4?

128-bit address scheme (B) Signup and view all the answers

How many numbers make up an IPv6 address, each representing a 16-bit value?

8 (A) Signup and view all the answers

What is the responsibility of DHCP (Dynamic Host Configuration Protocol) in connecting computers to the Internet?

Assigning computers IP addresses (B) Signup and view all the answers

What does DNS (Domain Name System) do when a user types a URL into their web browser?

Converts URLs to and from IP addresses (B) Signup and view all the answers

Which protocol is responsible for guaranteeing the delivery of all data packets submitted via the Internet?

TCP (Transmission Control Protocol) (C) Signup and view all the answers

What is the most common method for implementing Ethernet in modern LANs?

Twisted-pair cables (UTP) (A) Signup and view all the answers

Which type of network covers an area wider than a LAN and can include satellite links connecting offices in different countries?

WAN (D) Signup and view all the answers

What is the function of a VLAN (Virtual Local Area Network)?

To provide a simulated environment for communication as if on a single LAN (A) Signup and view all the answers

Which technology is NOT typically used in implementing WANs?

Twisted-pair cables (UTP) (B) Signup and view all the answers

What is the main characteristic of a VLAN (Virtual Local Area Network)?

It appears to be on the same LAN despite geographical distribution (B) Signup and view all the answers

What is the primary purpose of standards in the construction of networks?

To enable different network devices to communicate effectively with each other (A) Signup and view all the answers

What is the main reason for the variance in data transmission speed across a network?

The distance between the sender and receiver of the data (A) Signup and view all the answers

Why is compression of data often necessary when transmitting across a network?

To decrease the volume of data being transferred over the network (D) Signup and view all the answers

What characteristic is a key consideration when evaluating different transmission media for networks?

The bandwidth and signal degradation over distance (D) Signup and view all the answers

Why is packet switching used for data transmission in networks?

To allow for data to be transmitted in small, manageable units (C) Signup and view all the answers

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