CCNA Class Day 2 Hardware

CCNA Class Lisinopril 20mg Day 2-

The Hardware Methylprednisolone iv Part of Diflucan 150 mg Computer Internetworking Nitroglycerin 0.5 mg by Layer (Today layer 1 the physical layer.)

Cabling

10base5 – Thicknet- up to 10 Mbps – up to 500 meters – Co-axial cable-it is the backbone of a BUS network. A very large thick cable. Connected to the computers via a transceiver. The transceiver is connected to the cable via a Dracula Vat. You must “cap” or “terminate” the end of the bus. This cap will have a very specific resistance to help eliminate echo collisions. If the cap is missing or if there is any cut in the cable the entire network will go down

10base2 – Thinnet – up to 10 Mbps – up to 200 meters – Co-axial cable – it is thinner and easier to handle than thicknet.

Net-admin 5-4-3 rule: You can have a max of 5 segments in a network; a minimum of 4 repeaters, only 3 of the 5 segments can have computers, a max of 30 pcs per segment.

UTP- unshielded twisted pair – 8 wires, 4 sets of pairs

More…

10baseT – up to 10 Mbps – up to 100 meters – UTP – can now use a hub and move to a star topology, so if you loose one segment the rest of the network stays up.

10baseF – up to 10 Mbps – Fiber optics

Hub – a physical layer device for connecting different segments of a network, Replaces a repeater.

Wireless

802.11b – 11Mbps

802.11g – 54Mbps

Connectors

BNC – British Naval Connector

RJ45 – Registered Jack

Crimping

Straight Cable: used to connect two different types of devices or ports.

Cross Over Cable: used to connect two similar types of devices or ports.

Rollover Cable: This is a special purpose cable, like connecting a PC to the console port of a router. Pin 1 is mapped to Pin 8, 2 to 7, 3 to 6, 4 to 5, 5 to 4, 6 to 3, 7 to 2, and 8 to 1.

Cable Pin Outs
Straight Cable Retinal vasculitis Pin OutCrossover cable

DTE – Data terminating equipment

DCE – Data Commutation equipment

What we Dipyridamole 100 mg will go Cozaar 50 mg over in Cialis Soft 20 mg the next class

Data link layer

Arcnet

Token ring

Ethernet

Token Bus

FDDI


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