Networking concepts 5

Guided media, IS
Which are those that provide a conduit from one device to another, include twisted-pair cable, coaxial cable, and fiber-optic cable
Transport electromagnetic waves without using a physical conductor. This is often referred to as wireless communication
Neither
Unguided media transport electromagnetic waves without using a physical conductor. This is often referred to as wireless communication
True
False
Twisted Pair consists of :
Two conductors
Metal
Two conductors (normally copper), each with its own plastic insulation, twisted together.
What do we reach by twisting the pairs of a twisted pair ?
Give the characteristics of STP AND UTP
How much data rate Cat 7 has
213
412
400
100
200
600
121
601
2000
Cat 6 / 7 are used in
WANS
LANS
MANS
LMAN
WLANS
TIA / EIA 568A wiring IS
White green , green , white orange , blue , white blue , orange , white brown , brown
Browngreenorange , white brown ,
White green , green , white orange , blue , white blue , orange , white brown
TIA / EIA 568B wiring IS
Whiteorange , orange , whitegreen , blue , white blue , green , white brown , brown
Browngreenorange , white brown whitegreen , blue , white blue , green , white brown
Neither
Mention the three types internet cables : describe what type of devices they connect and their characteristics end :
Coaxial cable is made of :
Central aluminum shield
Central core conductor
Insulating sheath
Outer metallic sheath
Outer conductor of metal foil or braid
Plastic cover the whole cable
Which connector is used for The Ethernet network and to prevent reflection of the signal
Which are the four generations of Ethernet lans :
Standard Ethernet(10Mbps)
Volvo Ethernet(1000Mbps)
Fast Ethernet(100Mbps)
Fast Ethernet(1000Mbps)
10 Gigabit Ethernet(100Gbps)
Gigabit Ethernet(1Gbps)
100 Gigabit Ethernet(1000000000 Gbps)
10 Gigabit Ethernet (10 Gbps)
10 Gigabit Ethernet (1 Gbps)
Which are the characteristics of 10Base5
10Mbps
Analog signal
Digital signal
5000 meters
500 meters
Which are the characteristics of 10Base2
Thin Coax
Thick Coax
10Mbps
100Mbps
185-2000 meters
185-200 meters
10Base-T
Thick Coax
Thin Coax
UTP
1000 meters
10 meters
100 meters
Twisted pair Ethernet
10Base-T uses a physical star topology.
10Base-T uses a Bus topology.
10Base-F
Twisted pair Ethernet
UTP
1000 meters
2000 meters
The stations are connected to the hub using two fiber-optic cables
Uses Fiber optic cable
10000 meters
100 Mbps
Mention at least 2 typical fast Ethernet standards and describe the characteristics
1000Base-CX (Standard: IEEE 802.3z • Copper twisted-pair • Run only up to 25 meters)
True
False
1000Base-LX : Standard: IEEE 802.3z • Uses Copper twisted-pair • 9-micron core and 1300 nm laser • Supports 3 to 10km in lengt
True
False
10GBase-T (10 Gigabit Ethernet) • Standard: IEEE 802.3an • Uses category 5e, 6, or 7 cables • Supports 1000m cable length
True
False
Describe what is a fiber optic cable is made off and describe its process through its medium :
Mention 3 fiber optic modes :
Multiple beams from a light source move through the core in different paths. Multimode step-index fiber • The density of the core remains constant from the centre to the edges. • A beam of light moves through this constant density in a straight line until it reaches the interface of the core and the cladding which has a lower density. • This alters the angle of the beam's motion. • Step-index refers to the suddenness of this change, which contributes to the distortion of the signal as it passes through the fiber
True
False
What is multi mode graded - index fiber
Single mode • Uses step-index fiber and a highly focused source of light that limits beams to a small range of angles, all close to the horizontal. • Is manufactured with a much smaller diameter than that of multimode fiber, and with substantially lower density. • The decrease in density results in a critical angle that is close enough to 90° to make the propagation of beams almost horizontal. • Propagation of different beams is almost identical. • Delays are negligible.
True
False
Which are the 3 fiber optic connectors :
Wireless transmission media is :
Radio wave is :
Private IP addresses are :
What is a loopback ?
What is RU ?
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