Computer Networks Lecture 1: Introduction to Computer Networks and Internet

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29 Questions

What is the primary focus of Chapter 1 in the book 'Computer Networking: A Top Down Approach'?

Introduction to computer networks and Internet

In the lecture agenda, what is mentioned after 'Internet Future'?

Access Networks

What is the primary function of the network core?

Packet/Circuit switching

What is a network of networks?

The Internet

Which layer of the Internet structure deals with loss, delay, and throughput?

Transport Layer

What does the course resource text book primarily focus on?

Application Layer

What is the main function of a packet switch?

It forwards packets between different networks

Which component of the network is responsible for forwarding packets between different networks?

Network core

What type of devices are considered as hosts or end systems in the network?

Laptops, smartphones, tablets, TVs, gaming consoles, watches, and more

What is the function of a network edge in the network?

Computing devices or hosts or end-systems

Which type of communication links are made up of different types of physical media including copper wire, optical fiber, and radio spectrum and satellite?

Both wired and wireless communication links

What type of network is the Internet?

Wide Area Network (WAN)

Which components form part of the Internet network?

Network edges, links, core, protocols, applications, and hardware

What is the primary function of a protocol in computer networking?

To define the format and order of messages exchanged between network entities, and the actions taken on message transmission, receipt, and other events.

Explain the concept of packet switching and its significance in computer networks.

Packet switching involves breaking data into packets and sending them independently across a network. It allows for efficient use of network resources and enables data to take different paths to reach the destination.

What are the key aspects of network performance that need to be considered in computer networking?

Loss, delay, and throughput are crucial aspects of network performance.

Explain the concept of the network edge and its role in the overall network structure.

The network edge refers to the end systems and devices that are directly connected to the Internet. It includes hosts and access networks, and plays a critical role in enabling communication with other network entities.

What does the term 'network of networks' refer to in the context of the Internet?

The Internet is often referred to as a network of networks, indicating that it is composed of interconnected networks operated by different organizations and entities.

What is the primary function of the transport layer in the Internet protocol stack?

The primary function of the transport layer is to provide reliable data transfer between end systems and to manage the flow control and congestion control mechanisms.

What are the primary components of the network core?

interconnected routers/switches or network of networks

What are the two main types of communication links mentioned in the text?

wired (fiber and copper) and wireless (radio and satellite)

What types of physical media are used in different types of communication links?

copper wire, optical fiber, radio spectrum, satellite

What are examples of non-traditional devices that are being connected to the Internet?

laptops, smartphones, tablets, TVs, gaming consoles, watches, eye glasses, cars, traffic control systems

What is the function of a packet switch?

forwarding packets on outgoing communication links

What types of devices are considered as hosts or end systems in the network?

computing devices or hosts or end-systems

What is the transmission rate of a communication link measured in?

bits/second

What is the Internet primarily considered as?

Wide Area Network (WAN)

What are the two main components of the network edge?

computing devices or hosts or end-systems, network links and physical media

What is the sequence of communication links and packet switches traversed by a packet from the sending end system called?

packet switch

Test your knowledge on the fundamentals of computer networks and the internet with this quiz based on Lecture 1 by Dr. Dina Fawzy. The quiz content is derived from the book 'Computer Networking: A Top Down Approach' by Jim Kurose and Keith Ross, specifically covering chapters 1 to 5.

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