NAVEDTRA 14225A, INFORMATION SYSTEMS TECHNICIAN TRAINING SERIES MODULE 4–COMMUNICATIONS HARDWARE Flashcards Preview

Common Bibs > NAVEDTRA 14225A, INFORMATION SYSTEMS TECHNICIAN TRAINING SERIES MODULE 4–COMMUNICATIONS HARDWARE > Flashcards

Flashcards in NAVEDTRA 14225A, INFORMATION SYSTEMS TECHNICIAN TRAINING SERIES MODULE 4–COMMUNICATIONS HARDWARE Deck (25):
1

A lot of communications failures are ascribed
to which of the following areas?

Poor administration

2

The level of readiness and preparation that a
deploying ship should maintain is determined
by what individual?

The type commander

3

The most efficient method of ensuring that all
step-by-step preparations are completed before
deploying can be accomplished by using
which of the following procedures?

A check-off list

4

What publication provides the minimum
number of check-off sheets?

NWP 4

5

For long-range direction finding,
medium-range communications and
navigation communications, which of the
following frequencies is normally used?

3-30 MHz

6

What frequency band is used strictly for
line-of-sight communications?

SHF

7

What is the difference, if any, between a black
dc patch panel and a red dc patch panel?

Classification of Information being passed through

8

What frequency range is primarily for mobile
and maritime units?

HF

9

Aeronautical radio navigation, mobile
communications, boat crews, and radar use
which of the following frequency bands?

VHF

10

The UHF band is located in what frequency
range?

300 MHz to 3 GHz

11

Which of the following patch panel colors
indicates classified material is being passed
through the panel?

Red

12

"A sequence of random binary bits used to
initially set and periodically change
permutations in crypto equipment for
decrypting electronic signals" defines what
term?

Key

13

Information pertaining to the Navy's SHF
satellite system can be found in what section
of NTP 2?

One

14

What is/are the warning sign(s), if any, that are
attached to black patch panels?

BLACK PATCH PANEL and UNCLAS
ONLY

15

Equipment permanently wired together and
used in conjunction with each other is known
by which of the following terms?

Normal-through

16

What term used in the call-up indicates that a
ship cannot transmit and receive
simultaneously?

Simplex

17

What type of publications contain information
and instructions on the use of crypto
equipment?

KAOs

18

What are the different methods of operation in
ship-shore mode

Duplex, simplex, and semiduplex

19

When you can use a communications
equipment to both transmit and receive
simultaneously, this is known by which of the
following terms?

FDX (full duplex)

20

What is the normal reason that a ship would
use the simplex method?

Not ample equipment onboard

21

A ship using a simplex system has to call up
the shore station to pass message traffic. If the
ship cannot raise the shore station after the
second attempt, what is the usual procedure?

Check the equipment

22

Details that must be included in a termination
request message are in what publication?

NTP 4

23

Once the full-period termination period is
secured, what type of message must be sent to
cancel the termination?

COMMSHIFT

24

System back-to-back off-the-air testing must
be completed what total number of hours
before a termination activation?

24 hrs

25

If you are in a lifeboat, which of the following
frequencies will you use?

8364 kHz