WIN-T - CORRECT ANSWER-Warfighter Information Network-Tactical
-The Army's fully-mobile, tactical network portion of the DOD Information
Network-Army (DODIN-A)
INC 1 - CORRECT ANSWER-Networking at the halt
INC 2 - CORRECT ANSWER-Networking on the move
What are some benefits of SATCOM? - CORRECT ANSWER--SATCOM allows
for service over the Polar Regions, the oceans, and the remote areas of the world.
-SATCOM provides global connectivity to widely dispersed small and mobile
forces.
-SATCOM acts as a network extension and provides long-haul communications to
areas where terrestrial architecture may be insufficient or where line of sight
equipment is inadequate.
True or False: Signal latency is a minor concern in satellite communications, so
geographic and meteorological factors play an important role in choosing teleports.
- CORRECT ANSWER-FALSE: Signal latency is a MAJOR concern in satellite
communications, so geographic and meteorological factors play an important role
in choosing teleports.
,Benefits of WIN-T - CORRECT ANSWER--On-demand, pre-positioned links to
DISN services.
-Automatic routing and information transfer over the most effective SATCOM
network.
-The Wideband Global SATCOM (WGS) allows for cross-banding for
communications between dissimilar SATCOM systems and frequency bands(C
band, X band, Ku band, and Ka band).
DOD Gateways - CORRECT ANSWER--Gateways give tactical terminals access
to DISN services regardless of their deployment location.
-DOD gateways are located across the globe to offer gateway entry points close to
warfighters in all theaters.
-DOD gateways provide long-haul network transport and connections from the
deployed tactical network to the strategic infrastructure.
Satellite Footprint - CORRECT ANSWER--The area of the earth's surface covered
by the satellite antenna's beam pattern within the field of view of the satellite's
transmitters or sensors.
-Satellite transmissions can cover 1/3 of the earth's surface
What are the three types of coverages? - CORRECT ANSWER--Earth Coverage
, -Area Coverage
-Narrow Coverage
Earth Coverage (EC) - CORRECT ANSWER-Uses an EC horn antenna to cover
most of the earth's surface visible from the satellite, normally equal to the footprint.
Area Coverage (AC) - CORRECT ANSWER-Uses a steerable dish or multi-beam
antenna to cover areas of concentrated users that often deploy small, mobile or
transportable earth terminals (I.e. ships, aircraft, and ground tactical terminals).
Narrow Coverage (NC) - CORRECT ANSWER-Uses spot beam antenna to cover
a confined coverage area containing small earth terminals or small areas generating
large volumes of military communications traffic.
Satellite Communications - CORRECT ANSWER--Satellite transmissions can
cover 1/3 of the earth's surface
-Each satellite is equipped with various "transponders" consisting of a transceiver
and an antenna tuned to a certain part of the allocated spectrum
-The incoming signal is amplified and then rebroadcast on a different frequency
-One channel dedicated to transmitting and one channel for receiving
Different Types of Satellites - CORRECT ANSWER--Communications Satellite
-Satellite TV
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