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Topic 4 & 5 Networking Media

Topic 4 & 5 Networking Media

Assessment

Presentation

Computers, Education

University

Practice Problem

Medium

Created by

Harun Harryizman

Used 22+ times

FREE Resource

51 Slides • 11 Questions

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Topic 4 & 5 Networking Media

by Dr. Harryizman Harun

SMMTC, UUM​

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​The twisting is necessary to minimize electromagnetic radiation and resist external interference. It also helps to limit interference with other adjacent twisted pairs (cross-talk).

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Protects all the conductors within the cable

​Dr. Harryizman Harun SMMTC, UUM

Outer Jacket

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  • Reduce electrical noise from affecting the signals.

  • Reduce electromagnetic radiation that may interfere with other devices.

​Dr. Harryizman Harun SMMTC, UUM

Braided/Foiled Shield

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The conductor is the point at which data transmits.

​Dr. Harryizman Harun SMMTC, UUM

Copper Conductor

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To maintain the spacing between the center conductor and shield.

​Dr. Harryizman Harun SMMTC, UUM

Insulator

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  • To shield from electromagnetic interference.

  • Provides a barrier against EMI moving into and out of the coaxial cable.​

​Dr. Harryizman Harun SMMTC, UUM

Braided Mesh

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To protect internal layers from damages.

​Dr. Harryizman Harun SMMTC, UUM

Protective Plastic Layer

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​Travels in only one direction. It can be more clear on the example of person talking into microphone and then hearing voice from the speaker. Signal travels in only one direction from microphone to speaker.

​Capable of sending signal in both directions, but in only one direction at a time. An example could be police car radio phones allowing one person talk at a time.

​Allows signal transmission in both directions simultaneously. An example is a telephone IP service.

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A thin glass tube called a core that transports light pulses.

​Dr. Harryizman Harun SMMTC, UUM

Core

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A thin layer of glass that protects and surrounds the fiber core, reflecting light back into the core causing light waves to travel the length of the fiber.

​Dr. Harryizman Harun SMMTC, UUM

Cladding

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Absorb shocks, prevent excessive bending and reinforce the fiber core.

​Dr. Harryizman Harun SMMTC, UUM

Coating

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Protect the fiber core from excessive pull forces and crushing, particularly during installation.

​Dr. Harryizman Harun SMMTC, UUM

Strength Member

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A final layer of protection for the core conductor and further strengthens the cable.

​Dr. Harryizman Harun SMMTC, UUM

Outer Jacket

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​Fresnel Zone: Regions of space between and around a transmitter and a receiver

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IR

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Review Questions​

Topic 4 & 5​

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Multiple Choice

In data communication terminology, a transmission medium is a ________ path between the transmitter and the receiver.

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logical

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physical

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astronomical

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Multiple Choice

Transmission Media is broadly classified into guided and unguided media.

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True

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False

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Multiple Choice

Guided media is also referred to as Wired or ________ transmission media.

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bounded

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unbounded

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bordered

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unbordered

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Multiple Select

Which of the following are the correct features of guided media?

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High Speed

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Insecure

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Used for comparatively shorter distances

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Multiple Choice

Twisted Pair cable is of two types: Unshielded Twisted Pair (UTP) and Structured Twisted Pair (STP).

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False

2

True

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Multiple Choice

Ethernet is the traditional technology for connecting devices in a wireless local area network (LAN) or wide area network (WAN).

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True

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False

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Multiple Choice

In an optical fibre, the core is surrounded by a less dense glass or plastic covering called ________.

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cloying

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coating

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cladding

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clumping

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Multiple Choice

The coaxial cable transmits information with cable bandwidth split into separate ranges in baseband mode.

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True

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False

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Multiple Choice

Question image

Which guided medium is shown in the photo?

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Radiowave

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Twisted Pair

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Coaxial

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Fibre Optic

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Multiple Choice

The following unguided media can penetrate through buildings and the sending and receiving antennas need not be aligned.

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Radiowaves

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Microwaves

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Infrared

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Multiple Choice

_______ waves are used for very short-distance communication. For example, it is used in TV remotes, wireless mouse, keyboards, printers, etc.

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Infrared

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Radiawaves

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Microwaves

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End of Review Questions​

Thank you

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Topic 4 & 5 Networking Media

by Dr. Harryizman Harun

SMMTC, UUM​

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