CONTENTS

1. Introduction to Data Communication and Computer Networks

1. Overview of Data Communication

1.1 Components of Data Communication

1.2 Data Representation

1.3 Data Flow

1.4 Network Criteria

1.5 Physical Structure and Topologies

2. Categories of Networks

3. Connection-Oriented Networks

4. Connectionless Networks

5. Some Example of N/WS

5.1 Peer-to-Peer Networks

5.2 X.25 Network

5.3 ATM Network

5.4 Ethernet

6. Wireless LANS: 802.11, 802.11X, Gigabit

7. Interconnection of Networks: Internetworks

2.  Principle of Layering Concept

1. Need for Layering

2. OSI Protocol Layering

3. TCP/IP MODEL

3.1 OSI Vs TCP/IP

3. Physical Communication

1. Introduction

2. Transmission Media

2.1 Devices

3. Transmission Techniques

4. Wireless Transmission Switching

4.1 Circuit Switching

4.2 Message Switching

4.3 Packet Switching

4. Link Layer Communication

1. Introduction

2. Types of Errors

3. Error Detection

4. Error Detection Techniques

4.1 Parity Check

4.2 Check Sum

4.3 Cyclic Redundancy Check

5. Error Correction

6. Error Correction Techniques

6.1 Automatic Repeat Request (ARQ)

6.2 Hamming Code

6.3 Modem Error Correction and Data Compression Standard

7. Framing

8. Flow Control

9. Error Control

10. HDLC (High Level Data Link Control)

10.1 HDLC Stations

10.2  HDLC Configurations

10.3 HDLC Operational Modes

11. P2P (Peer to Peer) Protocol

12. Solved Examples

5. IP Addressing and Routing

1. Internet Protocol

2. IP Packet Format

3. Addressing

3.1 Physical Address

3.2 Logical Address

3.3 Port Address

3.4 Specific Address

4. IP Addresses

5. Network Mask

5.1 Subnet Mask

6. Network Addresses

7. Broadcast Address

8. IP Address Classes

9. Loopback Address

10. What TCP does?

10.1  TCP Characteristics

10.2  TCP HEADER

10.3  Sliding Window

11. TCP Connection

12. Overview of IPv6

12.1  Advantages of IPv6

13. Solved Examples

6. Routing Protocol

1. IP Routing Concepts

1.1 Classed IP Addressing and the Use of ARP

1.2 Static Vs Dynamic Routing

1.3 WANPIPE Routing

1.4  Advanced IP Routing

2. IP Routing Table

3. Properties of Streams

4. Routing

5. Routing Protocol

5.1 Routing Information Protocol (RIP)

5.2 Interior Gateway Routing Protocol (IGRP)

5.3 Enhanced Interior Gateway Routing Protocol (EIGRP)

5.4 Open Shortest Path First (OSPF)

5.5 Border Gateway Protocol (BGP)

7. Domain Name System (DNS)

1. Introduction to DNS

2. Domain Namespace

3. Domain Name

3.1 Internet Domain Namespace

3.2 Basic DNS Concepts

3.3 Zones

3.4 DNS Servers

3.5 Caching-Only Servers

3.6 Forwarders and Slaves

3.7 Load Sharing

3.8 Name Resolution

3.9 Recursive and Iterative Queries

3.10 Caching and Time to Live

3.11 Negative Caching

4. Authoritative Hosts

4.1 Authoritative Servers

5. Resource Records and Zones

5.1 Resource Record Format

5.2 Resource Record Types

5.3 SOA Resource Records

6. Delegating Authority

6.1 Delegation and Glue Records

6.2 Zones

6.3 Root Hints Files

6.4 Boot Files

7. ZONE TRANSFER

7.1 Full Zone Transfer

7.2 Incremental Transfer

8. DNS NOTIFY

9. DNS Protocol

9.1 DNS Lookups

8. Network Applications

1. Introduction

2. Hyper Text Transfer Protocol (HTTP)

3. HTTP Communications

4. Email: Sending and Receiving Emails, Email Addressing, Message Structure

5. MIME– Multipurpose Internet Mail Extensions

6. SMTP – Simple Mail Transfer Protocol with Examples

7. POP – Post Office Protocol

8. IMAP – Internet Message Access Protocol

9. FTP – File Transfer Protocol

10. Overview of Network Security

11. Threat

12. Attacks

12.1  Passive Attacks

12.2  Active Attacks

12.3  Passive Vs Active Attacks

13. Cryptography / Cryptology

13.1  Symmetric-key Cryptography or Secret-Key Encryption

13.2  Asymmetric Key Encryption or Public Key Encryption

14. Security Services

15. Firewall

15.1  Types of Firewall

15.2  Limitations of Firewall