Computer Networks & Data Communication Essentials

سرفصل های دوره

A Comprehensive Guide to Internet Technologies: From Basics to Advanced Protocols and Security Measures

1 - Introduction

1 - What is a Computer network

2 - Nuts and Bolts of Internet

3 - Nuts and Bolts of InternetNetwork Edge Devices Hosts Clients and Servers

4 - Nuts and Bolts of InternetAccess Network Core Network

5 - Internet Structure Network of Networks

6 - How to Solve the Complexity of InternetComputer Networks

7 - Layered Approach To Solve Complexity Air Travel Example

8 - Internet Protocol IP Stack

9 - Physical Layer

10 - Datalink Layer

11 - Network Layer

12 - IP Address Format for IPv4

13 - Transport Layer

14 - Application Layer

2 - The Application Layer

15 - The Reason Internet Exists Networking Applications Their Design Principle

16 - Types of Network Applications ClientServer Architecture

17 - Types of Network Applications PeertoPeer Architecture

18 - Examples of Application Layer Protocols

19 - Transport Service Requirements for Different Application Layer Protocols

20 - How Processes Communicate using Sockets

21 - TCP Vs UDP as the Transport Layer Protocols

22 - Transport Layer Protocols Used by the Notable Application Layer Protocols

23 - Hypertext Transfer Protocol HTTP Anatomy of a Webpage

24 - Overview of HTTP Protocol

25 - Persistent NonPersistent HTTP

26 - NonPersistent HTTP Example

27 - Per Object Response Time in NonPersistent HTTP

28 - Response Time Comparison Between Persistent NonPersistent HTTP

29 - General Format of an HTTP Request Message

30 - HTTP Request Methods

31 - General Format of an HTTP Response Message

32 - HTTP Response Status Codes

33 - Why use Cookies to Maintain ClientServer State

34 - Application of Cookies

35 - Maintaining Client Server State Using Cookies

36 - Displaying a Web Page with AD without using Cookies

37 - Use Third Party Cookies To Track a Users Behaviour Display Targeted Ads

38 - Cookies and Privacy Concerns

39 - How Web Cache aka Proxy Server Works

40 - Conditional GET to Update the Web Cache

41 - Introduction to File Transfer Protocol FTP

42 - FTP Separate Control Data Connections

43 - FTP Commands Responses

44 - Simple Mail Transfer Protocol SMTP Components of an Internet Email System

45 - Example Scenario Alice Sends an Email to Bob

46 - An Email Message Format

47 - SMTP Protocol Description RFC 5321

48 - An Example of SMTP ClientServer Interaction

49 - Mail Access Protocols POP IMAP HTTP

50 - Introduction to Domain Name System DNS

51 - Basic Working Principle of DNS

52 - Root TopLevel Domain and Authoritative Servers

53 - DNS Name Resolution Iterated Query

54 - DNS Name Resolution Recursive Query

55 - Caching of DNS Information To Improve Response Time

56 - BitTorrent PeertoPeer File Sharing Application

57 - BitTorrent TitforTat Upload Priority

3 - The Transport Layer

58 - Introduction to the Transport Layer

59 - Transport Vs Network Layer

60 - Two Principal Transport Layer Protocols TCP UDP

61 - Transport Layer MultiplexingDemultiplexing

62 - How Transport Layer DeMultiplexing Works

63 - UDP Connectionless Demultiplexing An Example

64 - TCP ConnectionOriented Demultiplexing An Example

65 - User Datagram Protocol UDP Overview

66 - Use Cases of UDP

67 - UDP Segment Format

68 - UDP Checksum

69 - Transmission Control Protocol TCP Overview

70 - TCP Seq Numbers ACKs

71 - Bidertional Data Transfer Using TCP

72 - TCP Reliability Retransmissions due to timeout events Three Duplicate Acks

73 - TCP Retransmission Scenarios

74 - TCP Segment Structure

75 - TCP Flow Control

76 - TCP Congestion Control Approach

77 - Three Components of TCP Congestion Control 1 Slow Start

78 - 2 Congestion TCP Tahoe

79 - 3 Fast Recovery TCP Reno

80 - TCP ThreeWay Handshake

81 - Closing a TCP Connection

4 - The Network Layer

82 - Introduction to the Network Layer

83 - Two Key Functions of Router Routing and Forwarding

84 - IP Range Aggregation and Longest Prefix Matching in Routing Tables

85 - IP Addressing A Data Network Example

86 - IP Addressing What is an interface

87 - IP Addressing Subnets

88 - Example How many Subnets

89 - Internet IP Address Assignment Strategy

90 - Hierarical Addressing More Efficient Routing

91 - Classless InterDomain Routing CIDR

92 - How Does a Host Get An IP Address Dynamic Host Configuration Protocol DHCP

93 - Network Address Translation NAT Why NAT

94 - Principle of NAT

95 - A NAT Scenario

96 - Advantages of NAT

97 - The NAT Traversal Problem

98 - What is Routing and its Types Static Vs Dynamic Routing

99 - What is an Autonomous System AS IntraAS InterAS Routing Protocols

100 - Types of Interior Gateway Routing Protocols IGPs 1 Distance Vector Routing

101 - 2 Link State Routing

102 - Why InterAS Routing Protocol is Used

103 - Example of InterAS Routing

104 - Example of InterAS Routing Choosing Among Multiple ASes

105 - InterAS Routing on Internet using Border Gateway Protocol BGP

106 - Internet Control Message Protocol ICMP

107 - ICMP Error Message Example Time Exceeded

108 - Traceroute

109 - Ping Command Using ICMP Echo Reply Messages

110 - IPv6 IP Address

5 - The Link Layer

111 - Introduction to the Link Layer

112 - Why Different Link Layer Protocols for Different Physical Links

113 - Router Vs Switch

114 - Services Provided by the Link Layer Framing Link Access Reliability

115 - Services Provided by the Link Layer Flow Control Error Detection Correction

116 - What is Network Interface Card NIC how Adjacent Nodes Communicate using NIC

117 - Main Types of Link Access Protocols

118 - Types of Multiple Access Protocols 1 Channelization Protocols

119 - Example of FDMA TDMA

120 - Types of Multiple Access Protocols 2 Random Access Protocols

121 - Pure ALOHA

122 - Pros and Cons of Pure ALOHA

123 - Slotted ALOHA Protocol and its Pros Cons

124 - Carrier Sense Multiple Access with Collision Detection CSMACD

125 - Ethernet CSMACD Algorithm

126 - Controlled Access Taking Turns Protocols

127 - Polling Based Controlled Access Protocols

128 - Token Passing Controlled Access Protocols

129 - IP Vs MAC Address

130 - Portability of the MAC Address

131 - Address Resolution Protocol ARP

132 - ARP Protocol in Action

133 - Routing of IP Packets from One Subnet to Another Subnet

134 - Ethernet Its Physical Topology

135 - Ethernet Frame Structure

136 - Ethernet Unreliable Connectionless

137 - Ethernet Switch Its Properties

138 - How Switch Selflearns the Forwarding Table

139 - Switch Working Algorithm

140 - An Example of Switch Selflearning Forwarding

141 - Self learning of Switch Forwarding Tables in Case of Interconnected Switches

142 - Motivation For Using Virtual LANs VLANS

143 - Problem with VLANs Spanning Multiple Switches

144 - VLAN Trunking

6 - The Physical Layer

145 - Evolution of IEEE 8023 Ethernet Standards Link Physical Layer

146 - Common Implementations of Fast Ethernet Physical Layer of 10Base2 10Base5

147 - Common Implementations of Fast Ethernet Physical Layer of 10BaseT

148 - Common Implementations of Fast Ethernet Physical Layer of 10BaseF

149 - Common Gigabit and Fast Ethernet Implementation

7 - Computer Network Security

150 - What is a Firewall

151 - Why Firewalls are used

152 - Types of Firewalls 1 Stateless Packet Filtering

153 - Network Security Policy For Packet Filtering

154 - Stateless Packet Filtering Implementation as Access Control List

155 - Drawback Of Stateless Packet Filtering

156 - 2 Stateful Packet Filtering

157 - Stateful Packet Filering in Access Control List

158 - Application Gateways

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