32 Questions
What is the purpose of making the PowerPoint slides freely available?
To allow customization and adaptation
What is one of the conditions for using the slides in a class according to the text?
Mention their source
What should be noted if the slides are posted on a website?
Note that they are adapted from the original slides
What is the main focus of the chapter based on the text?
Understanding basic Internet concepts and terminology
How does the chapter plan to provide more detail later in the course?
By using practical examples from the Internet
What is meant by using the Internet as an example?
The Internet will serve as a model to explain networking concepts
What is the function of a packet router in a network?
Forward packets of data
Which organization defines Internet standards through Request for Comments (RFCs)?
Internet Engineering Task Force (IETF)
What is the main role of end systems in a network?
Running network applications
Which component of the Internet provides services to applications like email, web browsing, and online gaming?
Institutional network
What does TCP control in a network environment?
Sending and receiving messages
Which organization is responsible for the interconnected ISPs forming the Internet as a 'network of networks'?
Global ISPs
What is the typical upstream transmission rate for DSL?
2 Mbps
What is the function of a DSLAM in a DSL network?
Split voice and data signals
What technology is used by wireless LANs within a building?
802.11b/g (WiFi)
Which type of media does Ethernet typically use?
Twisted pair (TP)
What is the primary purpose of a cable modem termination system (CMTS)?
Terminate cable modem signals onto the internet
What is the primary function of a cable splitter in a cable network?
Split data and TV signals onto different cables
What technology allows for high-speed point-to-point transmission over long distances?
Fiber optic cable
What is the typical downstream transmission rate for cable networks?
24 Mbps
What is the propagation speed of the cars in the caravan analogy?
100 km/hr
How long does it take for the last car to reach the 2nd toll booth in the caravan analogy?
1 hour
In the caravan analogy, if the cars now propagate at 1000 km/hr, how long does it take for the 1st car to reach the 2nd toll booth?
7 minutes
What is the relationship between traffic intensity (La/R) and average queueing delay?
Direct relationship
When La/R is close to 0, what can be said about the average queueing delay?
It is small
What happens when La/R is greater than 1 in terms of average delay?
Average delay is infinite
What is the purpose of the traceroute program?
To measure delay from the source to the destination router
What does it mean when there is no response (*) in the traceroute output?
The router is not replying to probe packets
What happens to a packet arriving at a full buffer?
It is dropped or lost
What is the purpose of a queue (buffer) preceding a link?
To store packets temporarily
How is throughput defined in networking?
The rate at which bits are transferred between sender and receiver
What does it indicate if Rs < Rc in terms of throughput?
The average end-to-end throughput is lower than expected
Learn about residential access networks, institutional access networks (such as schools and companies), and mobile access networks. Explore topics like bandwidth, shared vs dedicated connections, and the use of DSL technology in access networks.
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