Computer Networks Lecture 1: Introduction to Computer Networks and Internet

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Questions and Answers

What is the main focus of the book 'Computer Networking: A Top Down Approach' by Jim Kurose and Keith Ross?

  • Comprehensive overview of computer networking (correct)
  • Network performance
  • Application development
  • Network security

Which chapter of the book 'Computer Networking: A Top Down Approach' is likely to cover topics related to data transmission across physical media?

  • Chapter 5: Link Layer (correct)
  • Chapter 4: Network Layer
  • Chapter 2: Application Layer
  • Chapter 3: Transport Layer

What is the primary focus of the lecture on 'Introduction to the Internet' according to the provided information?

  • Access networks
  • Internet future
  • Internet history
  • Understanding protocols (correct)

In the context of computer networks, what is the Internet primarily described as?

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

Which layer of the Internet architecture is concerned with data integrity and error detection?

<p>Link Layer (C)</p> Signup and view all the answers

What aspect of computer networks does the concept of 'network edge' primarily refer to?

<p>Host connection to network (B)</p> Signup and view all the answers

What is the Internet primarily considered as in terms of network type?

<p>Wide Area Network (WAN) (D)</p> Signup and view all the answers

Which of the following is NOT a component of the Internet network as described in the text?

<p>Network periphery (D)</p> Signup and view all the answers

What type of devices are referred to as 'host' or 'end system' in the context of the Internet?

<p>Both traditional and non-traditional devices (C)</p> Signup and view all the answers

What do communication links in the context of the Internet network consist of?

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

How is data transmitted between end systems in the Internet network?

<p>In packets (D)</p> Signup and view all the answers

What is the primary function of a packet switch in the Internet network?

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

Which type of packet switch is primarily used for forwarding packets within a single network?

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

What is the measurement unit for the transmission rate of a communication link in the Internet network?

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

What types of devices are considered as non-traditional computing devices connected to the Internet?

<p>'Internet of Things' devices only (C)</p> Signup and view all the answers

Which type of network connects computing devices throughout the world?

<p>Wide Area Network (WAN) (B)</p> Signup and view all the answers

What is the primary characteristic of circuit switching?

<p>Dedicated communication path (D)</p> Signup and view all the answers

Which physical media transmits data in electron format and has a transmission rate of 10Gbps?

<p>Twisted pair copper (Category 5) (D)</p> Signup and view all the answers

What is the primary characteristic of packet switching?

<p>Data division into smaller units (A)</p> Signup and view all the answers

Which type of physical media allows signals to propagate freely in the form of electro-magnetic radio waves?

<p>Electro-magnetic radio waves (C)</p> Signup and view all the answers

What is the main disadvantage of electro-magnetic radio waves as a physical media?

<p>Interference by objects (D)</p> Signup and view all the answers

What is the transmission rate offered by the 802.11 (WiFi) protocol for Wireless LANs as mentioned in the lecture?

<p>450 Mbps (B)</p> Signup and view all the answers

Which technology is commonly used for offering between 1 and 10 Mbps in wide-area wireless networks such as GSM?

<p>3G (C)</p> Signup and view all the answers

What is the primary difference between Wireless LANs and wide-area wireless networks like GSM, based on the lecture?

<p>Coverage area (D)</p> Signup and view all the answers

What is the primary function of a packet switch in the context of the Internet network?

<p>Forwarding packets within a single network (D)</p> Signup and view all the answers

Which of the following technologies is NOT commonly associated with offering wide-area wireless network coverage, according to the lecture?

<p>WiFi 6 (C)</p> Signup and view all the answers

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