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25 Cards in this Set
- Front
- Back
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Three types of Networks
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Local Area Network (LAN) (“Local”)
Metropolitan Area Network (MAN) (“Metro”) Wide Area Network (WAN) –(The World Wide Web) |
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Campus LAN
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A network that is composed of many smaller LANs that exist within a business campus or smaller geographic area.
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What are types of Network Media
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Copper Cable - Conn. via RJ45
Fiber Optic Cable- (Connects via SC, ST, MTRJ, or LC) |
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What does copper cable connnect via
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Copper Cable - Conn. via RJ45
Fiber Optic Cable- (Connects via SC, ST, MTRJ, or LC) |
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What does fibre optic cable connnect via
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Connects via SC, ST, MTRJ, or LC)
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Benefits of copper cable
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Twisted Pair Cable - inexpensive & easier to work with
Distance limited to 100 meters Susceptible to EMI resulting in cross-talk Shielded Twisted Pair (STP) (common for Token Ring) Unshielded Twisted Pair (UTP) (Cat5, Cat5e, Cat6 are most commonly used types |
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Benefits of fibre optic cable
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Single Mode (8.3 micron) or Multimode (62.5 or 50 micron)
Transmit light rather than electricity Immune to EMI and RFI (interference) More secure and can travel longer distances (~70km) |
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What are the layers of the OSI Model
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7. Application- i.e. File, Print, Email
6. Presentation- Formatting data exchange 5. Session- establish, sync & maintain sessions 4. Transport- error & flow control, TCP/IP, IPX/SPX 3. Network- IP Address, Routers 2. Data Link- MAC-address, Switches 1. Physical- Cable, Network Interface Card, Hub |
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Cisco IOS Software
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Internetwork Operating System
is the software used on the vast majority of Cisco Systems routers and current Cisco network switches. IOS is a package of routing, switching, internetworking and telecommunications functions tightly integrated with a multitasking operating system. |
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What does Cisco IOS SW do
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Provides Network Intelligence
Supports hundreds of Open Standards Allows for flexibility and choice Provides common functionality across network Feature breadth IP Routing QoS Firewall & VPN Call Management & more |
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Does IOS support open standards? How is it differnent than OSI and ISO
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Yes. The others are standards organizations
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Heirarchical Network..3 Layers and aggregation
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Access Layer - Users attadched
Distributiron Layer - Good for security and QOS Core- Backbone for Campus LAN/WAN. |
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Repeater
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Can be placed in the middle of a long copper link
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Infrastructure Equipment . Describe Hubs vs Switches vs. Routers
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Hubs vs. Switches
Replace Hubs with Switches Switch vs. Router (L2/L3 switch, VLAN) “Switch when you can, route when you must” Routers Connect LAN to WAN (Inside to Outside) Routes traffic through alternative paths |
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What do Access Switches connect?
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End Devices (Think Floor)
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Name the small campus access switch series
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2900 (2950, 2960, 2970)
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Name the medium campus access switch series
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3700 (3560, 3750) – Medium Campus
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Name the large campus access switch series
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Catalyst 4000 Chassis (4500) – Large Campus
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What are distribution switches for
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Distribution Switches – QoS, Security (Think Building level)
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Explain difference between L2 switch, L2+ (L3 aware), L3 switch and a Router. Asics
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explain
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What are the distribution layer switches
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Catalyst 4000 (4500) – Medium Campus
Catalyst 6500 – Large Campus |
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What do Core switches do
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Handle High Traffic Flow – Speed and redundancy (Think campus)
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Name Core Switches
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Catalyst 6500
The Core would be where your Internet/WAN connections would be placed. 1800, 2800 – Small Campus 3800 – Medium Campus 7200 - Large Campus |
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Name Small campus core switches
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1800, 2800
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Name medium campus core switches
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3800 series
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