Introduction to Networking Concepts

• What is Networking
• Advantages & Disadvantages
• Network Characteristics
• Network Models (Peer-to-Peer and Client-and-Server)
• Network Types (LAN,WAN,MAN,PAN)
• Network Topologies (Bus, Star, Ring)
• Internet connection (DSL, Cable, Serial Link)
• Network Media

Networking Models

• History
• Layered Network Model
• Layering Concepts and Benefits
• TCP/IP Protocol Architecture
• RFC
• Application, Transport, Internet and Network Access Layer
• Devices at different layers
• Data Encapsulation
• The OSI Reference Model
• OSI Layers and Their Functions
• Comparing OSI and TCP/IP

LAN

• Ethernet History
• Ethernet Types (10/100/1000 Base T,TX, SX/LX)
• 10BASE2 and 10BASE5
• Repeaters
• 10BASE-T with Hubs
• UTP Cabling, UTP Cables and RJ-45 Connectors
• UTP Cabling Pin-outs
• CSMA/CD
• Using Switches and Their Advantages
• Ethernet Data-Link Protocols and Frame
• Wiring Ethernet Cables
• Ethernet Addressing, Framing and Error Detection
• LAN Types (Ethernet, Token Ring, FDDI)

WAN

• WAN Basics (DCE,DTE, CSU/DSU, CPE, Demarc, DS0)
• WAN Technologies (Leased Lines, Circuit & Packet Switching & Cell Relay)
• HDLC (High Level Data link Control)
• PPP (Point-to-Point Protocol)
• Frame Relay
• ATM (Asynchronous Transfer Mode)
• WAN Cabling Standards
• Clock Rates, Synchronization, DCE, and DTE
• OSI Layer for Point-to-Point WANs

Internet Protocol

• Network Layer Functions
• IP Packets
• IP Routing
• Routing Protocols
• IP Addressing
• A, B, and C Classes of Networks
• IP Subnetting
• Host & Router Routing
• ARP, DNS, DHCP & Ping

TCP/IP Transport Layer

• Transport Layer Protocols: TCP and UDP
• Transmission Control Protocol
• Ports & Their Multiplexing
• TCP Error Recovery, Flow Control and Data Segmentation
• TCP Connection Establish and Terminate
• UDP (User Datagram Protocol)

Applications

• TCP/IP Applications, QoS Needs and Impact
• The World Wide Web
• HTTP (Hyper Text Transfer Protocol), HTTPS & SSL
• Universal Resource Locators
• FTP (File Transfer Protocol), Secured FTP
• SMTP, POP3 & IMAP
• Telnet

Network Security

• Sources and Types of Threats
• Firewalls
• Intrusion Detection and Prevention
• Virtual Private Networks (VPN)

LAN Switching

• Ethernet LAN Media and Cable Lengths
• Hubs, Bridges, and Switches
• Forward and Filter Decision Switching
• Learning MAC Addresses & Frames Flooding
• Spanning Tree Protocol
• Collision Domains and Broadcast Domains
• Virtual LANs (VLAN)

LAN Switches

• Switches and LED Switch Status
• Accessing the CLI & Password Security
• User and Enable Modes
• The debug and show Commands
• Configuration Sub-modes and Contexts
• Storing, Copying and Erasing Switch Configuration Files
• Initial Configuration

Ethernet Switch Configuration

• Securing CLI
• Console and vty Settings
• logging synchronous and exec-timeout Commands
• IP Address & Interfaces Configuring
• Port Security
• VLAN Configuration
• Securing Unused Interfaces

Switch Troubleshooting

• Cisco Discovery Protocol
• Layer and Interface Status
• Interface Speed and Duplex Issues
• Analyzing the Forwarding Path
• Port Security and Filtering

Wireless LANs

• Wireless LAN Basics
• Wireless LAN Standards & Modes
• Wireless Encoding and Nonoverlapping DSSS Channels
• Wireless Interference, Coverage Area, Speed, and Capacity
• Wireless Media Access (Layer 2)
• Wireless LAN Security (WEP, WPA, IEEE 802.11i, WPA-2 SSID Cloaking and MAC Filtering)

Operating Routers

• Installing Routers & Router Interfaces
• Router CLI & Difference with the Switch CLI
• Interface Status Codes and IP Addresses
• Bandwidth and Clock Rate on Serial Interfaces
• Router Auxiliary (Aux) Port
• Setup Mode, Upgrading and boot process of the IOS
• Configuring the configuration register and the show version command

Routing Protocol Concepts and Configuration

• Connected and Static Routes
• Default Routes and their configuration
• Routing Protocol (IGP & EGP) & algorithms
• Autosummarization and Manual Summarization, Classless and Classful Routing Protocols and Convergence
• Basic concepts, configuring and verifying RIP-2
• Different metrics used and the show ip route command
• Administrative Distance
• Debug command and RIP

Troubleshooting IP Routing

• IP Addressing issues
• Host networking commands of telnet, tracert, ipconfig, arp,netstat and nslookup

WAN Concepts

• WAN Technologies (PSTN, DSL & Cable)
• PSTN and analog modems
• Digital Subscriber Line types
• Cable Internet
• Asynchronous Transfer Mode (ATM)
• Packet and circuit switching
• NAT and PAT

WAN Configuration

• Configuring Point-to-Point WANs, HDLC and PPP
• Internet Access Router: Configuration Steps
• Step & configure IP Connectivity, DHCP and PAT

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