Big Idea 4

Which of the following is true about packets?

• Packets arrive at the receiving computer in the same order that they are sent from the sending computer

• One sending file will contain one packet

• Packets can arrive at the receiving computer in a different order than sent by the sending computer

• When sent by a sending computer packets are guaranteed to arrive at the receiving computer

Which of the following internet protocols defines how computers send packets of data to each other?

• TCP

• HTTP

• IP

• UDP

Which of the following protocols is responsible for addressing and routing your online request?

• UDP

• IP

• HTTP

• TCP

When is it advantageous to use UDP instead of TCP?

• UDP should always be used when available since UDP is faster and more reliable than TCP

• UDP should be used when the IP address of the receiving computer is not known

• UDP should be used when the speed of data transfer is more important than error correction

• UDP should be used when a guarantee is required that the order of data at the sending computer matches the order of data arriving at the receiving computer

Many types of computing devices made by many types of companies can all access the internet. Which of the following makes this access possible?

• Redundancy

• Large bandwidth

• Open standards and protocols

• Fault tolerance

Why are most websites designed to work within the boundaries of current web protocols, even when that limits the website's capabilities?

• Current protocols are the limit of web technology, so going further is impossible

• If a protocol is exceeded, an ISP will assume the website to be broken or malicious and block it

• Since the protocols are supported by all current web browsers, potential incompatibilities are minimized

• It is illegal to go beyond the boundaries of current protocols

What is the purpose of transitioning from IPv4 to IPv6?

• IPv4 is too slow to be useful in modern communications

• IPv4 has been found to be too insecure for modern communications

• It is easier to spoof an IPv4 address, as compared to an IPv6 address

• The rise of the internet-connected devices means that the number of available unique IPv4 addresses is sharply decreasing, and IPv6 will allow for more addresses

How does redundancy improve the scaling of the Internet?

• Redundancy leads to every communication being repeated, which ensures that the connected devices are not disconnect from each other

• Redundancy leads to every communication being repeated, which keeps the data from being lost

• Redundancy makes connections more reliable, which ensures that computers are always on the Internet

• Redundancy makes connections more reliable, which means that more devices are able to communicate without interruption

The Internet is built on open standards. In this context, what does "open" mean?

• The standards cannot be used in proprietary software of any form

• The standards can be used in any program tat is used exclusively to access the web

• The standards are made freely available and can be used by anyone

• The official standards can be made, updated, and edited by anyone

Which of the following best describes the fault-tolerant nature of the internet?

• The Internet always picks the fastest routes for packets traveling between a sending and receiving computer

• If a node of the Internet fails, the packets choose a different path to the receiving computer

• This fault-tolerant nature adds an additional layer of privacy for data traveling across the Internet

• All of the above