© 2008 Cisco Systems, Inc. All rights reserved. Cisco Confidential Presentation_ID 1

Chapter 1: Exploring the Network

Introduction to Networks

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Networking Today

Networks in Our Past and Daily Lives

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Interconnecting our Lives

Networking impacts in our daily lives

Networks Support the Way We Learn

Networks Support the Way We Communicate

Networks Support the Way We Work

Networks Support the Way We Play

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Providing Resources in a Network

Clients and Servers

Web server such as Apache Or IIS

Web client IE, Crome or Firefox.

Local Server Windows 2012 server or

Ubuntu Server.

Local Client Windows 7/8 , Ubuntu client.

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Providing Resources in a Network

Peer-to-Peer

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Components of a Network

End Devices

Some examples of end devices are:

Computers (work stations, laptops, file servers, web servers)

Network printers

VoIP phones

TelePresence endpoint (High quality Video)

Security cameras (IP cameras)

Mobile handheld devices (such as smartphones, tablets, PDAs, and wireless debit / credit card readers and barcode scanners)

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Components of a Network

Network Infrastructure Devices

Examples of intermediary network devices are:

Network Access Devices (switches, and wireless access points)

Internetworking Devices (routers)

Security Devices (firewalls, IDS)

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Components of a Network

Network Representations

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Components of a Network

Topology Diagrams

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LANs and WANs

Types of Networks

The two most common types of network infrastructures are:

Local Area Network (LAN)

Wide Area Network (WAN).

Other types of networks include:

Metropolitan Area Network (MAN)

Wireless LAN (WLAN)

Storage Area Network (SAN)

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The Internet

Intranet and Extranet

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Connecting to the Internet

Connecting Remote Users to the Internet

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Connecting to the Internet

Connecting Businesses to the Internet

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Converged Networks

The Converging Network

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Reliable Network

Fault Tolerance in Circuit Switched Network

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Reliable Network

Providing Network Security

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Network Trends

New trends

Some of the top trends include:

Bring Your Own Device (BYOD) Smartphone, laptop or PDA

Online collaboration (Teambox, Huddle or Dropbox)

Video (VOD, Skype)

Cloud computing

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Network Trends

Bring Your Own Device (BYOD)

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Network Trends

Online Collaboration

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Network Trends

Video Communication

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Network Trends

Cloud Computing

There are four primary types of clouds:

Public clouds

Private clouds

Custom clouds

Hybrid clouds

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Network Trends

Data Centers

A data center is a facility used to house computer systems and associated components including:

Redundant data communications connections

High-speed virtual servers (sometimes referred to as server farms or server clusters)

Redundant storage systems (typically uses SAN technology)

Redundant or backup power supplies (UPS OR RPS)

Environmental controls (e.g., air conditioning, fire suppression)

Security devices

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Networking Technologies for the Home

Technology Trends in the Home

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Networking Technologies for the Home

Powerline Networking

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Networking Technologies for the Home

Wireless Broadband

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Future of Networking

Network Security

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Network Security

Security Threats

The most common external threats to networks include:

Viruses, worms, and Trojan horses

Spyware and adware

Zero-day attacks, also called zero-hour attacks

Hacker attacks

Denial of service attacks

Data interception and theft

Identity theft

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Network Security

Security Solutions

Network security components often include:

Antivirus and antispyware

Firewall filtering

Dedicated firewall systems

Access control lists (ACL)

Intrusion prevention systems (IPS)

Virtual Private Networks (VPNs)

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Student Tasks

Exercise 1.2.4.4 – Introducing Packet Tracer.

Exercise 2.1.4.8 – Navigating the IOS (Switch).

Exercise 2.2.3.3 – Configure initial switch settings.

Exercise 2.3.2.5 – Implementing Basic connectivity instructions.

Exercise 2.4.1.2 – Skills integration challenge.

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Network Architectures

Cisco Certified Network Associate (CCNA)

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