(Last Updated On: December 8, 2017)
This is the Section 4 Module 4 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 4
Few streets |
Microcells |
Field Coding |
Coding for lot of movements |
File transfer |
Not a responsibility of Data Link Layer |
Flying Spot and CCD Telecine |
Used in house ‐ transfer something |
Frame Coding |
Coding for lot of details but less movements |
Frame‐based |
MPEG 2 |
Free Space Path Loss |
Losses of wave passing through vacuum |
Garble |
Unintentional or intentional changing the information difficult to understand |
Ge PIN Diode |
PIN diode is important in detecting light in fiber optic system. It is a PIN diode with notoriously high leakage current. |
Geometric Dilution of Precision (GDOP) |
Ephemeris and clock recovery …. |
Geothermal |
Analog transmitter cooling consistent throughout the season |
GIF |
256 symbols (?) |
GMSK |
HiperNet (HiperLAN) uses ____ modulation. |
Graded index fiber |
Optical fiber whose core has a refractive index that decreases gradually with increasing radial distance from the fiber |
H.323 |
Allows telephone communication via internet |
Half the original rate |
Effect when T1 used ADPCM |
Harry Nyquist |
Nyquist rate |
Heavy metal flouride |
It is a fiber optic material that is used in manufacturing low loss and long wavelength. |
Hematologic Syndrome |
Exposure to 200 to 1000 rad will result in ___ |
High Insertion Loss |
Not a disadvantage of AWG |
High Reuse Factor |
Better reuse factor |
Hot Standby |
Has a dedicated back up or spare channel |
Hounsfield |
Invented the MRI |
HSV model |
Use with Hue, Saturation, Brightness |
Huffman Coding |
Data compression scheme that uses fewer bits |
Hypercommunicator |
Highly engaged communicator |
ID ‐ 1 |
ID specification 85.6 x 53.98 used for credit cards, atm, etc |
ID ‐ 3 |
ID specification 125mm x 85mm used for passports… |
ID ‐ 2 |
105 x 74 mm, used in German ID cards |
IEC |
"electrotechnology" |
IEC (International Electrotechnical Commission) |
International organization that sets standards…"electrotechnology" |
Infrared Transmitter |
transmitter that emits energy in the infrared spectrum |
InGaAsP |
dopant, achieve wide bandwidth |
InGaAsP Diode |
PIN diode is important in detecting light in fiber optic system. A PIN diode that is use in 900 nm and when the responsivity requirement is high. Dopant that achieve bandwidth. |
Integrity |
Original message won’t be change |
Interleave 2 of 5 |
Numeric data of bar code |
International Gateway Interface |
X.75 recommendation of Packet Switched of Data Network (PSDN). |
ISO |
More powerful than most non‐government organization |
It is fast ATM speed |
Not true about fast user network interface (FUNI) |
It is implemented as 802.11b |
Not true about OFDM |
John McCarthy |
Coined the term Artificial Intelligence in 1956 |
JPEG |
24‐bit |
Keystone distortion |
Distortion occur in scanning n rectilinear |
Leached Image Bundle |
Bundle of optical fiber used in flexible endoscopes |
Leaky Wave antenna |
Wideband microwave antenna that radiates in a narrow beam whose direction varies with voltage, perforated waveguide |
Less than 36 |
OFDM … no. of DFC in one bundle |
Less than or equal to 2.405 |
|
Log‐in and Log‐out procedures |
Most important services offered in Session Layer |
Long Duration Symbol |
Key property of OFDM that makes attractive to terrestrial broadcasting |
Loose Tube Design |
Used in outside plants and interbuilding services |
Loran C |
Low frequency ….. |
Low Tier System |
Have high data rate, low loss but with only small coverage or cell. High quality, low delay voice |
Low voltage, high Current DC |
In TV, solid state amplifier modules |
Mach Zehndeer Interferometer |
NdYag, OTDR interferometer |
Magnetron |
Keyed oscillator most often used a _______ as a power oscillator |
Magnetron |
Oldest microwave tube |
MAXIMUM POWER TAKES PLACE |
Match transmission in load |
Maxwell |
Light propagation follows the ____ equation. |
MC 02‐06‐2010 |
Digital Terrestrial Television (DTT) |
MCX |
6 MHz with snap‐on connector |
Member bodies |
Only have voting rights |
Message nonrepudiation |
Can’t deny |
Message Trailer |
Signals the end of a message |
Metadata |
Data describing other data |
Metal Hallide compounds, Dopant material and Oxygen |
Are oxidized to form a white silica powder called soot. |
Complete List of Communications Engineering Coaching Materials
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