Trasmission Media

Question 1

10Base2 Coax Cable

Answer 1

Max speed: 10 Mbps
Distance: 185 meters
Difficulty of Installation: Medium
Susceptibility to EMI: Medium

Question 2

10Base5 Coax Cable

Answer 2

Max speed: 10 Mbps
Distance: 500 meters
Difficulty of Installation: High
Susceptibility to EMI: Low

Question 3

10BaseT (UTP)

Answer 3

Max speed: 10 Mbps
Distance: 100 meters
Difficulty of Installation: Low
Susceptibility to EMI: High

Question 4

STP (Shielded Twisted Pair)

Answer 4

Max speed: 155Mbps
Distance: 100 meters
Difficulty of Installation: Medium
Susceptibility to EMI: Medium

Question 5

100BaseT/100BaseTX coax cable

Answer 5

Max speed: 100 Mbps
Distance: 100 meters
Difficulty of Installation: Low
Susceptibility to EMI: High

Question 6

1000BaseT coax cable

Answer 6

Max speed: 1 Gbps
Distance: 100 meters
Difficulty of Installation: Low
Susceptibility to EMI: High

Question 7

FIber-Optic

Answer 7

Max speed: 2+ Gbps
Distance: 2 + kilometers
Difficulty of Installation: High to medium
Susceptibility to EMI: None

Question 8

Star Network Topology

Answer 8

Employs a centralized connection device (hub, switch, concentrator)
Each system is connected to the central hub by a dedicated segment

Question 9

Mesh Network Topology

Answer 9

Connects systems to all other systems using numerous paths.
Partial mesh connects many systems to many other systems
Provides redundant connections to systems, allowing multiple segment failures without seriously affecting connectivity.

Question 10

Ring Nework Topology

Answer 10

Closed loop that connects end devices in a continuous ring (all communication travels in a single direction around the ring)
Multistation Access Unit (MSAU or MAU) connects individual devices
Used in token ring and Fiber Distributed Data Interface (FDDI) networks

Question 11

Bus Network Topology

Answer 11

All devices are connected to a single cable (backbone) terminated on both ends.
All systems can transmit data simultaneously which can result in collisions.
Ethernet is a bus network

Question 12

CAT5 Unshielded Twisted Pair Copper Cable

Answer 12

Data Rate: Up to 100Mbps
Max Length: 100m
Application: Ethernet, FastEthernet, Token Ring

Question 13

CAT5e Unshielded Twisted Pair Copper Cable

Answer 13

Data Rate: Up to 1 Gbps
Max Length: 100m
Application: Ethernet, FastEthernet, Gigabit Ethernet

Question 14

CAT6 Unshielded Twisted Pair Copper Cable

Answer 14

Data Rate: Up to 10 Gbps
Max Length: 100m
Application: GigabitEthernet, 10G Ethernet (55 meters)

Question 15

CAT6a Unshielded Twisted Pair Copper Cable

Answer 15

Data Rate: Up to 10 Gbps
Max Length: 100m
Application: GigabitEthernet, 10G Ethernet (55 meters)

Question 16

Characteristic of Coaxial Cables

Answer 16

Fairly resistent to EMI
Longer Lengths than twisted pair
Requires segment terminators

Question 17

Coaxial Cable

Answer 17

Typically used with a cable modem installations to provide connectivity to an ISP. Requires modem to convert the analog signals to digital.

Question 18

Types of Coaxial Cable

Answer 18

Thinnet (10Base2)- used to connect systems to backbond trunks of thicknet cabling
Thicknet (10Base5) - can span 500 meters and provide up to 10Mbps

Question 19

Ethernet

Answer 19

Typically associated with Category 5/6 unshielded twisted pair (STP) and can be plenum-rated

Question 20

Fiber

Answer 20

Most often used in datacenter for backend components
2 types
Single-mode is typically used for long distance communication, over several kilometers or miles
Multi-mode is typically used for faster transmission but with a distance limit depending on the desired speed.