3 Network Interfaces and Cables

Question 1

A system for connecting a number of computer systems to form a local area network, with protocols to control the passing of information and to avoid simultaneous transmission by two or more systems.

Answer 1

Ethernet

Question 2

Is an operating unit that develops global standards in a broad range of industries.

Answer 2

Institute of Electrical and Electronic Engineers Standard Association

Question 3

7 Layers of Open System Interconnection (OSI)

Answer 3

Physical
Data Link
Network
Transport
Session
Presentation
Application

Question 4

layer is used by devices and cabling.

Answer 4

Physical Layer

Question 5

layer used for the Media Access Control (MAC).

Answer 5

Data Link Layer

Question 6

3 TYPES OF CABLES

Answer 6

1. Coaxial Cables
2. Twisted Pair Cables
3. Fiber Optic Cables

Question 7

is an electrical cable with a copper conductor and an insulator shielding around it and braided metal mesh. Also known as Coax

Answer 7

Coaxial Cables

Question 8

4 PARTS OF COAXIAL CABLES

Answer 8

• Copper Conductor
• Insulator
• Braided Mesh
• Protected Plastic Layer

Question 9

a central conductor which consists of copper. The conductor is the point at which data transmits.

Answer 9

Copper Conductor

Question 10

a dielectric plastic insulation around the copper conductor. Used to maintain the spacing between the center conductor and shield.

Answer 10

Insulator

Question 11

helps to shield from electromagnetic interference. The braid provides a barrier against EMI moving in and out of the cable.

Answer 11

Braided Mesh

Question 12

an external polymer layer, which has a plastic coating. Uses to protect internal layers from damages.

Answer 12

Protected Plastic Layer

Question 13

have two conductor that are generally made up of copper and each conductor has insulation and twisted together.

Answer 13

Twisted Pair Cables

Question 14

2 TYPE OF TWISTED PAIR CABLE

Answer 14

1. Unshielded Twisted Pair (UTP) Cables
2. Shielded Twisted Pair (STP) Cables

Question 15

are Twisted Pair Cables broadly used in the telecommunications and computer industries as ethernet cables and telephone wires.

Answer 15

Unshielded Twisted Pair (UTP) Cables

Question 16

4 PARTS OF Unshielded Twisted Pair (UTP) Cables

Answer 16

1. Copper Conductor
2. HDPE Insulator
3. Rip Cord
4. PVC Sheath

Question 17

Are Twisted Pair Cables that has extra insulation or protective covering over the conductors in the form of copper braided covering. Reduced noises and signal interference in the cable.

Answer 17

Shielded Twisted Pair (STP) Cables

Question 18

4 PARTS OF Shielded Twisted Pair (STP) Cables

Answer 18

1. Jacket/Sheath
2. Braided Copper Shielding
3. Foil Shielding
4. Four Twisted Pairs

Question 19

it uses the concept of refraction of light through a core made up of glass and plastics.

Answer 19

Fiber Optic Cables

Question 20

5 PARTS OF Fiber Optic Cables

Answer 20

1. Core
2. Cladding
3. Buffer Coating
4. Strength Member
5. Outer Jacker

Question 21

it is the central tube of very think size made of optically transparent dielectric medium and carries the light transmitter to receiver.

Answer 21

Core

Question 22

is the outer optical material surrounding the core having reflecting index lower than core and cladding helps to keep the light within the core throughout the phenomena of total internal reflection.

Answer 22

Cladding

Question 23

is a plastic coating that protects the fiber made of silicon rubber.

Answer 23

Buffer Coating