Computer Networking: Lecture 1 Overview

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Questions and Answers

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

  • Layered approach to networking (correct)
  • Computer network performance
  • Network history and future
  • Internet protocol

In the context of computer networks, what does the 'network core' primarily involve?

  • Packet filtering
  • Circuit switching (correct)
  • Internet structure
  • Physical media

What aspect of computer networks does the 'network edge' primarily encompass?

  • Internet history
  • Hosts and devices (correct)
  • Security service models
  • Access networks

Which layer of the OSI model deals with application-level communication?

<p>Application Layer (B)</p> Signup and view all the answers

What is the primary function of an access network in the context of computer networking?

<p>Connecting end-user devices to the network (A)</p> Signup and view all the answers

What is the Internet primarily described as in the provided text?

<p>A network of networks (B)</p> Signup and view all the answers

What is the main function of the network core?

<p>Interconnected routers/switches or network of networks (B)</p> Signup and view all the answers

Which types of devices are considered as non-traditional computing devices?

<p>Internet-connected cars and traffic control systems (D)</p> Signup and view all the answers

What is the function of packet switches in a network?

<p>Forward packets between different networks (C)</p> Signup and view all the answers

What is the term used for any device connected to the network with a microprocessor?

<p>End system (B)</p> Signup and view all the answers

How are data transmission rates measured for different communication links?

<p>Bits/second (C)</p> Signup and view all the answers

What are the different types of physical media used for communication links?

<p>Copper wire, optical fiber, radio spectrum, and satellite (C)</p> Signup and view all the answers

Which component is used for forwarding packets between one network?

<p>Link-layer switches (C)</p> Signup and view all the answers

What happens when one end system has data to send to another end system?

<p>&quot;Packets&quot; are created by segmenting the data and adding header bytes to each segment (A)</p> Signup and view all the answers

Which of the following accurately describes the network edge in the context of computer networks?

<p>It encompasses the hosts, access networks, and physical media. (C)</p> Signup and view all the answers

What is the primary purpose of an access network in the context of computer networking?

<p>To provide connectivity between end systems and the network core. (C)</p> Signup and view all the answers

In the context of computer networking, what does the 'network core' primarily involve?

<p>Packet/circuit switching and Internet structure. (C)</p> Signup and view all the answers

What is a protocol in the context of computer networks?

<p>A set of rules that govern data communication. (D)</p> Signup and view all the answers

Which layer of the OSI model primarily deals with application-level communication?

<p>Application Layer (D)</p> Signup and view all the answers

What does the term 'Internet structure' primarily refer to in the context of computer networking?

<p>The overall design and organization of the interconnected networks. (C)</p> Signup and view all the answers

What is the primary function of the Internet?

<p>To connect billions of computing devices worldwide (A)</p> Signup and view all the answers

What is the role of packet switches in a network?

<p>Forward packets within the same network (A)</p> Signup and view all the answers

How are data transmission rates measured for different communication links?

<p>In bits/second (B)</p> Signup and view all the answers

Which devices are considered as non-traditional computing devices?

<p>Laptops and smartphones (B)</p> Signup and view all the answers

What does the 'network edge' primarily encompass in the context of computer networks?

<p>End systems and hosts (C)</p> Signup and view all the answers

What does a packet switch do when it receives a packet?

<p>Forwards the packet on one of its outgoing communication links (D)</p> Signup and view all the answers

"Network core" primarily involves which component in computer networking?

<p>Interconnected routers and switches (D)</p> Signup and view all the answers

'Communication links' are made up of which types of physical media?

<p>Copper wire, optical fiber, and radio spectrum and satellite (A)</p> Signup and view all the answers

"Hosts" or "end systems" refer to which type of devices connected to the network?

<p>&quot;Computing devices or hosts or end-systems&quot; (D)</p> Signup and view all the answers

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