Transcript Slide 1

Spring 2011
 CSCI 27
Computer Networking
Course Overview
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Defined networks and stand-alone computers
Described network advantages
◦ Relative to stand-alone computer
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Discussed peer-to-peer networks
◦ Described traditional peer-to-peer networks
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Discussed client/server networks
Defined and compared LANs, MANs and
WANs
Network+ Guide to Networks, 5th
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Reviewed common client/server network
elements
Described various network services
Reviewed the networking profession
Presented overview of certifications available
Skill sets required for networking positions
and projects
Described advantages of joining professional
associations
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Standards and standard organizations
ISO’s OSI (Open Systems Interconnection)
model
◦ Seven layers
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IEEE’s Project 802
Significant IEEE 802 standards
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Transmission methods
◦ Analog or digital
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Data modulation
Multiplexing
Basic data transmission concepts
◦ Full duplexing, attenuation, latency, noise
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Transmission flaws
◦ Noise, attenuation, latency
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Network+ Guide to
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Media characteristics
◦ Throughput, cost, size and scalability, connectors,
noise immunity Media
◦ Coaxial, Twisted pair, Fiber-optic
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DTE and DCE connector cables
◦ DB-9 and DB-25
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Structured cabling
◦ TIA/EIA joint 568 Commercial Building Wiring
Standard
◦ Components
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Best practices
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Network+ Guide to
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TCP/IP suite
◦ Core protocol and subprotocol introduction
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IPv4 addressing
◦ Binary and dotted decimal notation
◦ Subnetting
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Assigning addresses: BOOTP, DHCP, APIPA
IPv6 addressing
Sockets and Ports
Domain names, Host files, DHCP, DNS
Other application layer protocols
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Network+ Guide to
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Physical topology
◦ Basic network physical layout
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Logical topology
◦ Signal transmission
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Network backbones
◦ Network foundation
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Switching
◦ Manages packet filtering, forwarding
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Ethernet
◦ Cabling specifications, data frames, PoE
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NIC interface cards
◦ Types, installation, testing, IRQ use, Base I/O port use,
firmware settings, selection
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Repeater and hubs
Bridges
Switches
◦ Installation, switching methods, VLANs and trunking,
STP (Spanning Tree Protocol), Content and Multilayer
Switches
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Router characteristics and functions, protocols
Gateways and other multifunction devices
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WAN Topologies
PSTN and dial-up considerations
High speed digital data transmission
◦ Physical layer: ISDN, T-carriers, DSL, SONET
◦ Data Link layer: X.25, frame relay, ATM
◦ Physical and Data link: broadband
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Remote connectivity
Remote virtual computing
VPNs
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WLAN Architecture characteristics
Popular WLAN Physical, Data Link layer
standards
Wireless signal exchange
Small WLAN considerations
Larger, enterprise-wide WAN formation
Installing, configuring access points, clients
WLAN Pitfalls
MANs, WANs wireless transmission
Satellite Internet Access characteristics
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Characteristics common to all NOS
◦ Systems and servers, client support, identifying and
organizing network elements, sharing applications
and printers, managing system resources
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Windows Server 2008 network structure
Unix and Linux concepts and features
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This chapter covered:
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Designing TCP/IP-Based Networks
Subnetting
CIDR
Internet gateways
Address translation
TCP mail services
Utility commands
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Basic Terminology
VoIP
◦ Analog phones, IP phones, softphones
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Video over IP
◦ Streaming Video, IPTV, videoconferencing
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Signaling protocols
Session control protocols
Transport protocols
QoS (Quality of Service) Assurance
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Risks and auditing
Security policy
Network security risk points
Routers
Firewalls
Encryption
Authentication
Wireless access
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Methodical, logical troubleshooting
methodology
◦ Key to solving network problems
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Troubleshooting tools
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Tone generator and tone locator
Multimeters
Basic cable continuity testers
Cable performance tester
Voltage event recorder
Butt set
Network monitors and protocol analyzers
Wireless network testing tools
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System integrity and availability
Malware issues
◦ Types, characteristics, protection mechanisms
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Fault tolerance issues and resolutions
◦ Physical environment, power techniques
◦ Topology and connectivity techniques
◦ Server and storage techniques
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Data backup
◦ Media, strategy
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Disaster recovery concerns and techniques
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Network management
◦ Assessing, monitoring, and maintaining network
devices and connections
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Importance of network documentation and
policies
Network management applications
System logs and event logs, traffic shaping,
caching, asset management system
Upgrade types and considerations
◦ Software, hardware
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Network+ Guide to
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