Topic 4 & 5 Networking Media
Presentation
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Computers, Education
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University
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Practice Problem
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Medium
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.
logical
physical
astronomical
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Multiple Choice
Transmission Media is broadly classified into guided and unguided media.
True
False
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Multiple Choice
Guided media is also referred to as Wired or ________ transmission media.
bounded
unbounded
bordered
unbordered
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Multiple Select
Which of the following are the correct features of guided media?
High Speed
Insecure
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).
False
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).
True
False
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Multiple Choice
In an optical fibre, the core is surrounded by a less dense glass or plastic covering called ________.
cloying
coating
cladding
clumping
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Multiple Choice
The coaxial cable transmits information with cable bandwidth split into separate ranges in baseband mode.
True
False
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Multiple Choice
Which guided medium is shown in the photo?
Radiowave
Twisted Pair
Coaxial
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.
Radiowaves
Microwaves
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.
Infrared
Radiawaves
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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