COMPTIA NETWORK+ N10-009 PART II

WIRELESS NETWORKING

• 802.11

• MANAGED BY IEEE LAN/MAN

• STANDARDS COMMITTEE - IEEE802

• MANY UPDATES OVER TIME

• i.e.) 802.11ax IS WIFI 6

IEEE

• INSTITUTE OF ELECTRICAL & ELECTRONICS ENGINEERS

WIFI TRADEMARK

• WIFI ALLIANCE HANDLES INTEROPERABILITY TESTING

LTE

• LONG TERM EVOLUTION

• CONVERGED STANDARD (GSM & CDMA PROVIDERS)

• BASED ON GSM & EDGE

• STANDARD SUPPORTS DOWNLOAD RATES OF 15 Mbit/S

EDGE

• ENHANCED DATA RATES FOR GSM EVOLUTION

LTE - A

• LTE ADVANCED

• STANDARD SUPPORTS DOWNLOAD RATES OF 300 Mbit/S

5G

• LAUNCHED IN 2020

• HIGHER FRQUENCIES

• EVENTUALLY 10 GIGABITS PER SECOND

• SLOWER SPEEDS FROM 100-900Mbit/S

• BANDWIDTH BECOMES LESS OF A CONSTRAINT

• LARGE DATA TRANSFERS

• FASTER MONITORING & NOTIFICATION

• ADDITIONAL CLOUD PROCESSING

SATELLITE NETWORKING

• COMMUNICATION TO SATELLITE

• NON-TERRESTIAL COMMUNICATION

• HIGH COST RELATIVE TO TERRESTRIAL NETWORKING

• 100Mbit/s down, 5 Mbit/s UP ARE COMMON

• DIFFICULT-TO-NETWORK SITES

• RELATIVELY HIGH LATENCY

• HIGH FREQUENCIES (2GHz)

RAIN FADE

• OCCURS WITH SATELLITE NETWORKING WHERE A STORM AFFECTS CONNECTIVITY WHEN A STORM IS GOING BY

ETHERNET

• MOST POPULAR NETWORKING TECHNOLOGY IN THE WORLD

• DIFFERENT TYPES

  • SPEEDS, CABLING, CONNECTORS, EQUIPMENT

• i.e.) TWISTED PAIR COPPER OR FIBER

IEE ETHERNET STANDARDS

• IEEE 802.3 COMMITTEE

• INSTITUTE OF ELECTRICAL & ELECTRONICS ENGINEERS

• ALL TYPES & STANDARDS OF ETHERNET

• COPPER & FIBER

BASE

• BASEBAND

• SINGLE FREQUENCY USING ENTIRE MEDIUM

• i.e.) BROADBAND USES MANY FREQUENCIES (SHARING THE MEDIUM)

FIBER COMMUNICATION

• TRANSMISSION BY LIGHT

• NO RF SIGNAL

• SIGNAL SLOW TO DEGRADE

  • TRANSMISSION OVER LONG DISTANCES

• IMMUNE TO RADIO INTERFERENCE

MULTIMODE FIBER

• SHORT-RANGE COMMUNICATION

• UP TO 2KM

• INEXPENSIVE LIGHT SOURCE

  • i.e.) LED

LED

• LIGHT EMITTING DIODE

SINGLE-MODE FIBER

• LONG RANGE COMMUNICATION

• UP TO 100KM WITHOUT PROCESSING

• EXPENSIVE LIGHT SOURCE

• i.e.) LASER BEAMS