Understanding Network Fundamental

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Duration: 5 days

Build a foundation of networking knowledge in a real-world, multi-vendor environment.

A strong foundation of basic networking concepts is fundamental to a successful career in information technology, and in our popular Understanding Networking Fundamentals course, you'll gain those real-world, practical skills.

In this broad-based foundational course, you'll move step-by-step through the basics of data networking, practicing with leading-edge technologies from Cisco, Juniper, ADTRAN, HP, Dell, and Microsoft.

With a strong foundation and an understanding of basic network functions, standards, and protocols, you will be prepared to tackle advanced networking skills including TCP/IP, security, wireless integration, and Voice over IP.

1. Network Overview

Defining a Network
- Reasons to Use a Network
Network Components
- End Devices
- Operating Systems
- Network Infrastructure
- Network Types
- Network Services

2. Network Functions and Standards

Generic Network Functions
Standards Organizations
- Institute of Electrical and Electronics Engineers (IEEE)
- Common WAN Serial Interface Standards
Internet Organizations
- Internet Standards Process
OSI Model Overview
- Layer 1: Physical Layer
- Layer 2: Data Link Layer
- Layer 3: Network Layer
- Layer 4: Transport Layer
- Layer 5: Session Layer
- Layer 6: Presentation Layer
- Layer 7: Application Layer
TCP/IP Model

3. Local Signaling Media

Serial Cabling Specifications
- Media Interface Specifications
- DCE and DTE Specifications
Twisted-Pair Cabling Specifications
- Cable Runs
- Seven Keys to Successful UTP Wiring
Fiber Optic Cabling Systems
- Fiber Optic Cabling Types
Wireless Networking Systems
- Wireless Network Preparation

4. Ethernet

Network Overview
- Network Interface Cards
- MAC Addresses
- NIC Drivers
- CSMA/CD Operation
- Ethernet Collision Domain
Ethernet Connectivity Standards
- 10 Mbps Ethernet Connectivity Options
- 100 Mbps Ethernet Connectivity Options
- Gigabit Ethernet Overview
- 10 Gigabit Ethernet Connectivity Options
Ethernet Version II Frame Structure
- Ethernet Type Field
- IEEE 802.3 with 802.2 Frame Format
- Captured Frame Displayed by a Protocol Analyzer
Ethernet Equipment Overview
- Ethernet Ports and Connectors
- Half-Duplex and Full-Duplex Operation
- Ethernet Hubs
- Ethernet Switches
- Integrating 10, 100, and 1,000 Mbps and 10 Gbps Ethernet
Ethernet Performance Issues

5. Switching

Switching Overview
- Current Switch Installations
Switch Operation Overview
- The Learning Process
- The Flooding Process
- The Forwarding and Filtering Process
- Switch Loop Problems
Switch Configuration
- Port Security
Spanning Tree Algorithm Overview
- STA Root Switch Election
- STA Path Selection
- Spanning Tree Timers
- STA Self-Healing Ability
VLAN Overview
- VLAN Configuration
- VLAN Operation
- VLANs on Multiple Switches
Switch Troubleshooting

6. Logical Addressing

Logical Address Overview
Binary Numbering
- Converting Binary to Decimal
- Converting Decimal to Binary
- Conversion Practice
Dotted Decimal Notation
Logical Address Types
Class-Based Addressing
- Network-Specific Addresses
Reserved Addresses
Private Addresses
Network Masking
Classless Addressing

7. Address Resolution Protocol (ARP)

Address Resolution Overview
ARP Process
- ARP Messages
ARP Cache
- ARP Command
Gratuitous ARP
Proxy ARP
ARP Restrictions

8. Subnetting

Subnetting Overview
- Communication Between Hosts
- IP Address and Mask
Subnetting Basics
- Subnet Rules
- Subnetting Decisions
- Four Key Addresses
Case Study
- Onageristic Analysis Inc.
- Masking for Subnets
- Masking for Interfaces
- Headquarters Addressing
- East Addressing
- West Addressing
- WAN Addressing

9. Routing

Routing Overview
- Logical Segmentation
Static Links vs. Dynamic Routing
Router Configuration Overview
- Routing Protocols
- Routing Metrics
Routing Protocol Operation
- Routing Information Protocol
- RIP Routing Tables
- Open Shortest Path First (OSPF)
- Enhanced Interior Gateway Routing Protocol (EIGRP)
- Border Gateway Protocol (BGP)

10. WAN Overview

WAN Overview
- Telecommunications Infrastructure
- Connection Types: PVC and SVC
- WAN Technologies
WAN Circuit-Switching
- Wide Area Transmission Rates
- SONET
- Leased Lines
WAN Packet-Switching
- Packet-Switching Networks
- Metro/Carrier Ethernet
- X.25 Overview
- Frame Relay Overview

11. Network Layer Processes

Network Layer Processes Overview
Logical Addressing
- Network Loop Handling
- Routing Decision-Making
- Path Control
- Multicast Management
Communication Flexibility
- Multiplexing
- Data Length Management
Quality of Service
- Data Receipt Verification
Diagnostics
- Logical Error Reporting

12. Session Handling

Session Handling Overview
Process Identification
- Application Port Numbering
- Temporary Ports
- Port Address Translation
Connectionless Functions
- Connectionless Support
Connection-Based Functions
- Connection Handshake
- Connection Shutdown

13. Supporting Processes

Supporting Processes Overview
Dynamic Host Configuration Protocol (DHCP)
- Four-Step IP Addressing Process
Domain Name System (DNS)
- Top-Level Domains
- Country Domains
- Dynamic DNS
ICMP Overview
- The ping Command
- Variation Reports

14. NetBIOS and NetBEUI

A Historical Perspective
- What is NetBIOS?
- NetBIOS Services
- NetBIOS vs. NetBEUI
- NetBIOS over TCP/IP
Server Message Block
- SMB Security
NetBIOS Limitations
- The net Commands
- The nbtstat Command

15. Security

Network Security Overview
- Network Security Assessment
- Attack Types
- Hackers and Attackers
- Authentication
- Encryption
- Intrusion Detection Systems
Content Filtering
- Firewalls
- Personal Firewalls
- Packet Filters
- Proxy Servers
- Stateful Inspection Firewalls
Security Levels
- Single-Layer Protection
- Double-Layer Protection
- Triple-Layer Protection
Virtual Private Networks (VPNs)
Develop a Security Plan
- Vulnerability Assessment

16. User and Manager Processes

User and Manager Processes Overview
Terminal Emulation
File Transfer
- Connection-Based File Transfer
- Connectionless File Transfer
E-Mail
- Sending E-Mail
- Retrieving E-Mail
Web Browsing
- Uniform Resource Locator
Network Management

17. Wireless LANs

Wireless LAN Overview
- Wireless LAN Components
- Wireless Design Issues
Wireless LAN Standards
- IEEE 802.11a
- IEEE 802.11b
- IEEE 802.11g
Wireless Security
- Basic Security Steps
- Wired Equivalent Privacy
- Wi-Fi Protected Access
Non-Standard Solutions