Communications Engineering Coaching Materials: Section 4 Module 3

(Last Updated On: December 8, 2017)

Communications Coaching Materials: Section 4 Module 3

This is the Section 4 Module 3 of the compiled Communications Coaching Materials taken from various sources including but not limited to past Board Examination Questions in Electronic System and Technologies (EST), Communications Books, Journals and other Communications References. This particular Coaching Notes in Communications Engineering has random Questions and Answers in random topics. Make sure to familiarize each questions to increase the chance of passing the ECE Board Exam.

Communications Engineering Coaching: Section 4 Module 3

Beam Diffusion Effect


Color standard connector used for 62.5 nm fiber.

Bellman and Ford algorithm

Algorithm used in RIP

Beryllium Oxide Ceramic

Highly toxic fumes

Beverage Antenna

A wave antenna is also known as _____


Color standard used for 50 nm fiber.

Bleeding Edge technology

Refers to technology that is so new that it could have a high
risk of being unreliable and may occur greater expense in order to use it

Body Diffraction Effect

Bpicture or Bidirectionally

Past/future, for motion compensation

Bucky Factor

expresses the exposure (i.e. the mAs) increase required because of X-ray
absorption by the grid materials.

Buffer Tube

Plastic around cladding


Electronic ticketing standard for microprocessor contactless


Shielded screen twisted pair (SSTP)


Previously known as IS‐95


An error detection method which uses one’s complement

Chemical Vapor Deposition

Primary technology used for modern fiber manufacturing

Class 1

A fiber channel standard dedicated to the connection between
two devices with an acknowledgement of delivery frames.

Class 1

Direct to TV

Class 2

A fiber channel standard that has no connection between two
devices but establishes acknowledgement of the delivery of frames.

Class 2

0.25mW to 2.5mW

Class A

Station with 1.5 m antenna height

Class A and Class AB

Amplifier used in TV

Class I Cable TV Channel

A signaling path provided by a cable television system to
relay to subscriber terminals television broadcast programs that are received
off‐the‐air or are obtained by
microwave or by direct connection to a television broadcast station

Class II Cable TV Channel

A signaling path provided by a cable television system to
deliver to subscriber terminals television signals that are
intended for reception by a television broadcast receiver
without the use of an auxiliary decoding device and
which signals are not involved in broadcast transmission path

Class III Cable TV Channel

A signaling path provided by a cable television system to
deliver to subscriber terminal signals that are intended
for reception by equipment other than a television broadcast
receiver only when used with auxiliary equipment

Coho and the transmit phase frequency

The purpose of coho is to synchronize


Measures the color concentration of a substance

Communication to everyone, everywhere

Vision on UMTS, 3G in Europe


Microphone that uses capacitor

Convolutional Code

type of error-correcting code that generates parity symbols via the sliding application of a Boolean polynomial function to a data stream.

Correspondent Bodies

Countries that don’t have their own standards

Crest Factor

Ratio of peak power to average power

Cutting Edge Technology

Highest state of the art

D Layer

Most affected layer by Sudden Ionospheric Disturbance (SID)


GPS uploads or updates ____.

Data Streaming

Digitally coherent signals that is incorporated with timing
signals, added functionality for timing issue

Date Time Group

date and time, expressed in digits and zone suffixes


Radio format that uses Mpeg4 video compression

Dominant mode

Most efficient mode

Doppler Heading Reference

Typical time of 1% of the distance flown

Edge Emitting Diode

Long wavelength, High bandwidth

EdgeEmitting LED

high bandwidth at longer wavelengths

EIA/TIA 14443

Proximity cards

EIA/TIA 455107

Standard for measurement of reflectance.

EIA/TIA 455167

Standard for measurement of the Mode Field Diameter (MDF) of a
single mode fiber.

EIA/TIA 45534

Insertion loss of multimode and single mode

EIA/TIA 45559

Point defect

EIA/TIA 45561


EIA/TIA 52614

transmission loss of multimode

EIA/TIA 5267

Radiation loss of optical fiber (single mode) is measured


Unique code (?)


Measures galvanic skin resistance


Corrosion of different metals


Optical Fibers greatest contribution in the field of medicine

Entropy Coding

Measurement of uncertainty


Variable length loss ‐ less coding that reduce redundancy

EO 255

Minimum of 4 OPM songs per hour

EO 454

Naibalik ang NTC under sa DOTC

Error between nodes

Error that can be detected by Data Link Layer


Flat, hilly, loamy soil

False target

None existing, as a result of ambiguity

Fast Fading

fluctuations of amplitude when mobile terminal moves … Slow fading
arises when there are large reflected and diffracted objects along.

Faster than Light (FTL)


FBG based

Low pass band filter

Few streets

Multimode fibers can go up to ___ kilometers without repeaters

Complete List of Communications Engineering Coaching Materials

Communications Engineering Coaching Materials: Section 4 Module 3
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