Compo Reviewer

NETWORKING – is a group of two or more computers connected to each electronically

 BASIC TYPES OF COMPUTER NETWORK

1. LAN (LOCAL AREA NETWORK) – SOMETIMMES CALLED COOPERATE NETWORK
2. WAN ( WIDE AREA NETWORK) –  SOMETIMES CALLED INTERNET NETWORK

BENEFITS OF NETWORKING

A, improved productivity

B. improved communication

C. lower total hardware cost

DISADVANTAEG OF NETWORKING

1.      network requires a great deal of planning

2.      network of performance must be continuously monitored

3.      it takes highly skilled personal run networks to high degree of efficency

·         SERVER – USUALLY A HIGH-END COMPUTER THAT PROVIDES DISK SPACE, PRINTING SUPPOR , FILE SERVICE , SOFTWARE APPLICATION CLIENT/ SERVER NETWORKING OR OTHER SERVICE TO OTHER COPUTERS OVER A NETWORK

·         CLIENT – A COMPUTER THAT AVAILS OF THE SERVICES PROVIDED BY THE SERVER

·         RESOURCES- ANYTHING THAT AVAILABLE TO THE CLIENTON THE SERVER

·         MEDIA – THE PHYSICAL  CONNECTION BETWEEN  BOTHE DEVOCE ON THE NETWORK

·         PEER- EXCHANGEING TRAFFIC

·         USER- PERSONS THAT AVAILS OF THE NETWORK RESOURCES THROUGH PNE OF THE NETWORK CLIENT

·         \PROTOCOL – EXCHANGING NETWORK

STRUCTURE CABLING

IS   BUILDING OR CAMPUS TELECOMMUNICATION CABLING INFRASTRUCTURE THAT CONSIST OF A NUMBER OF A NUMBER OF STANDARDIZED SMALLER ELEMENTS CALLED SUBSYSTEMS

SUBSYSTEM

1.      DEMARCATION POINT -  POINT AT WHICH THE TELEPHONE COMPANY NETWORK ENDS AND CONNECTS WITH THE WIRING AT CUSTOMERS PREMISES

2.      EQUIPMENT/ TELECOMMUNICATION ROOMS – HOUSE EQUIPMENT AND WIRING CONSOLIDATION POINTS WHICH SERVE THE USERS INSIDE THE BUILDING OR CAMPUS

3.      VERTICAL / RISER CABLING – CONNECTS BETWEEN THE EQUIPMENT/ TELECOMMUNICATION ROOM SO NAMED BECAUSE THE ROOMS ARE TYPICALLY ON TH DIFFERENT FLOORS

4.       HORIZONTAL WIRING / INSIDE WIRING/ PLENUM CABLING – CONNECTS TELECOMMUICATIONS ROOMS TO INDIVIDUAL OUTLETS OR WORK AREAS ON THE WIRE WAYS, OR CEILING SPACE OF EACH FLOOR

5.      WORK-AREA – CONNECTS END-USER EQUIPMENT TO OUTLETS OF THE HORIZONTAL CABLING SYSTEM

UTP- UNSHIELDE TWISTED PAIR

STP- SHILEDED TWISTED PAIR

RJ45- CONSIST OF COPPER LEADS

NOISE – EXTRANEOUS CAPASITANCE INDUCTANCE

CROSSTALK- TINY EXTERNAL ELECTROMAGNETIC SIGNALS

STRAIGHT –THROUGH CABLE

WHITE/GREEN----------- WHITE/GREEN

GREEN----------------------- GREEN

WHITE/ORANGE--------- WHITE/ORANGE

BLUE------------------------- BLUE

WHITE/BLUE-------------- WHITE/BLUE

ORANGE-------------------- ORANGE

WHITE/BROWN---------- WHITE/BROWN

BROWN--------------------- BROWN

CROSSOVER CABLE

WHITE/GREEN----------- WHITE/ORANGE

GREEN----------------------- ORANGE

WHITE/ORANGE--------- WHITE/GREEN

BLUE------------------------- BLUE

WHITE/BLUE-------------- WHITE/BLUE

ORANGE-------------------- GREEN

WHITE/BROWN---------- WHITE/BROWN

BROWN--------------------- BROWN

USOC- UNIVERSAL SERVICE ORDER CODE

DTE- DATA TERMINAL EQUIPMENT

OPTICAL FIBER- IS A FLEXIBLE TRANSPARENT FIBER MADE OF A PURE GLASS( SILICA) NOT MUCH WIDER THAN A HUMAN HAIR

FIBER OPTIC -  TECHNOLOGY THAT USES LIGHT TO TRANSMIT DATA

-ROBERT MAURER( CORNING GLASS WORK)

BENEFITS

·          HIGH BAND WIDTH FOR VOICE VIDEO AND DATA APPLICATION

·         CAN CARRY THOUSANDS OF TIMES MORE INFORMATION THAN COPPER WIRE

·         MORE LIGHT WEIGHT THAN COPPER

·         LOW LOSS OF SIGNAL

·         RELIABILITY – LONGER LIFE SPAM

·         SECURE- DOES NOT EMIT ELECTROMAGNETIC INTERFERENCE AND IS DIFFICULTY TO TOP

PARTS OF OPTICAL FIBER( OUTER-INNER)

1.       JACKET

2.      STREGHT MEMBERS

3.      COATING

4.      CLADDING

5.      CORE

CORE – LIGHT CARRYING ELEMENT

CLADDING- SURROUND THE CORE

INDEX OF REFRECTION- THE RATIO OF THE VELOCITY OF LIGHT IN A VACCUM TO THE VELOCITY OF LIGHT

STRENGTH MEMBER- USUALLU MADE UP OF A RAMID THAT PREVENT FULLING DAMGE DURING INSTALLATION

JACKET- PROTECTC THE CABLE AGAINST ENVIRONMENT FACTOR

SC CONNECTOR – MOST WIDELY USE

BAND WIDTH- DATA CARRYINGG CAPACITY OF THE MEDIA

TYPES OF FIBER

SINGLE MODE FIBER- SINGLE STAND OF GLASS FIBER THAT HAS ONE MODE OF TRANSMISSION

-8-10 MICRONS CORE DIAMETER

-WDM (WAVE DIVISION MULTIPLEXING

MULTIMODE FIBER- SUPPORT MULTIPATHS OF LIGHTS AND HAS MUCH LARGER SIZES (50-100)

MULTIMODE FIBER IS MANUFACTURE IN TWO WAYS

1.       STEP- INDEX FIBER- HAS ABRUPT CHANGE OR STEP BETWEEN THE INDEZ OF REFRACTION OF THE CORE AND THE INDEX OF REFRACTION OF THE CLADDING

2.       GRADED-INDEX FIBER –  WAS DESIGNED TO REDUCED MODEL DISPERSION INHERENT IN STEP-INDES FIBER

WORK AREA- includes those spaces in building where occupants normally work and internet with there telecommunication equipment

 INCLUDE  THE FOLLOWING TELECOMMUNICATION EQUIPMENT

1. TELECOMMUNICATION OUTLET/CONNECTOR-
2. MULTI-USER TELECOMMUNICATION OUTLET ASSEMBLY (MUTOA)
3. CONSOLIDATION POINT
4. TRANSITION POINT
5. WORK AREA CABLE
6. WORK AREA EQUIPMENT

1. TELECOMMUNICATION OUTLET/CONNECTOR- CAN BE ANY TYPE OF CONNECTING DEVICE BEATER IN THE WORK AREA

2. TELECOMMUNICATION OUTLETBOX- HOUSING USED TO HOLD TELECOMMUNICATION OUTLET/CONNECTOR
3. WORK AREA CABLES- SOMETIMES CALLED EQUIPMENT CORDS OR STATION CORDS
4. MULTI-USER TELECOMMUNICATION OUTLET ASSEMBLY (MUTOA)-  SUITABLE FOR USE IN OPEN OFFICE SPACE THAT ARE FREQUENTLY RECONFIQURED *OPEN OFFICE/ OPEN AREA *-DESIGN IN WHICH MUCH OF THE AVAILABLE WORK AREA SPACE IS DIVIDED BY MODULAR FURNITURE AND PARTITIONS RATHER THAN BY FIIXED WALLS
5. CONSOLIDATION POINT-  IS A LOCATION FOR THE INTERCONNERCTION BETWEEN  THE PERMANENT INSTALLED HORIZONTAL CABLES IN THE TELCOM.ROOM AND THE HORIZONTAL CABLES EXTENDED TO TELCO.OUTLET/CONNECTOR
6. TRANSITION POINT – IS A LOCATION WHERE THEFLAT UTC (UNDER CARPRT TELECOMUNICATION CABLE) EMERGES FROM UNDR CARPET
7. WORK AREA EQUIPMENT – EQUIPMENT THAT HAS DIRECT CONTACT WITH THE USER