30 Questions
What is the main focus of Chapter 1 in the book 'Computer Networking: A Top Down Approach'?
Introduction to computer networks and Internet
Which part of the network is responsible for handling loss, delay, and throughput?
Network core
What is the main topic of the lecture agenda based on the provided information?
Introduction to the Internet
Which layer in the network architecture is responsible for addressing and routing?
Network Layer
What is a network of networks known as?
Internet
What is the term used for the hosts, access networks, and physical media in the network edge?
End Networks
What are the components of the network core?
Interconnected routers/switches or network of networks
What do end systems do when they have data to send to another end system?
Segment the data and add header bytes to each segment
Which devices are considered non-traditional computing devices connected to the Internet?
Laptops, smartphones, tablets
What does a packet switch do with a packet arriving on one of its incoming communication links?
Forwards the packet on one of its outgoing communication links
What type of communication links are used in the network core?
Wired (fiber and copper) and wireless (radio and satellite) communication links
What is the function of switches in forwarding packets?
Forward packets between the same network
What is the main function of routers in packet forwarding?
Forward packets between different networks
What links can transmit data at different rates?
Different links made up of physical media like copper wire, optical fiber, and radio spectrum and satellite
What is the average transmission rate offered by 802.11 (WiFi) protocol in Wireless LANs?
450 Kbps
Which technology is commonly used in wide-area wireless networks to provide between 1 and 10 Mbps transmission rate?
3G
What is the range of network coverage typically supported by wide-area wireless or cellular networks?
1-5 km
What is the book reference for the lecture 'Computer Networks Lecture 2'?
Computer Networking: A Top Down Approach, 6th edition
What is the network coverage typically supported by Wireless LANs using the 802.11 (WiFi) protocol?
100 ft.
What is the primary difference between Wireless LANs and wide-area wireless networks in terms of network coverage?
Wireless LANs have a coverage of 100 ft. while wide-area wireless networks have a coverage of 1-5 km.
What is the main difference between guided and unguided physical media?
Guided media signals propagate in solid media, while unguided signals propagate freely in the air
What is the transmission rate of Category 6 twisted pair copper?
10 Gbps
In which method of data transfer are end-to-end resources allocated and dedicated resources not shared?
Circuit switching
What is one of the disadvantages of electro-magnetic radio waves as a physical media?
Obstruction by objects
What does Fiber optic cable use to transmit data?
Light pulses
Which type of communication link does circuit switching establish?
Dedicated and shared
What is the main characteristic of packet switching?
Data divided into smaller units called packets
What is the function of Frequency Division Multiplexing (FDM)?
Dividing frequency spectrum into multiple channels for transmission
What is one of the main advantages of Time Division Multiplexing (TDM)?
Dynamic resource allocation
What is the main disadvantage of using coaxial cable as a physical media?
Noisy transmission
This quiz covers the content of Lecture 1 on computer networks, focusing on the introduction to computer networks and the Internet. It is based on the book 'Computer Networking: A Top Down Approach' by Jim Kurose and Keith Ross, 6th edition.
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