🔹109 COMMS

Question 1

🔹Explain “Gingerbread”.

Answer 1

An intruder on the net - stated by anyone who believes that communications have been compromised only appropriate response is “Roger Out”

Question 2

🔹What does the acronym EEFI represent?

Answer 2

Essential Elements of Friendly Information

Question 3

🔹Explain “Bead Window”.

Answer 3

Last transmission potentially disclosed unauthorized information.
There are the 7 commonly used EEFI/Beadwindows
01-Position
02-Capabilities
03- Operations
04- Electronic Warfare
05- Personnel
06- COMSEC
07- Wrong Circuit

Question 4

🔹Explain “River City”.

Answer 4

Varying degrees of RF restriction to limit incoming and outgoing communications to the ship for the purpose of OPSEC and Force Protection.

Question 5

🔹What is “Jamming”?

Answer 5

The deliberate radiation, re-radiation or reflection of EM energy to reduce or eliminate an enemy’s ability to communicate.

Question 6

🔹What are the message precedents?

Answer 6

R-Routine (6 hours)
P-Priority (3 hours)
O-Immediate (30 min)
Z-Flash (10 min or ASAP)
W-White Pinnacle (10 min or ASAP)

Question 7

🔹What is a “COMSPOT”?

Answer 7

A report indicative of issues, expected outages, or an outage lasting more than 30 minutes.

Goes to NCTAMS and DISA

Question 8

🔹What is “EMCON”?

Answer 8

Emissions Control Prevents an enemy from detecting, identifying and locating friendly forces. An Official Bill or Instruction put into action to control the electromagnetic/acoustic emissions from a ship which, if not controlled, could give away position and/or specific platform type to the enemy.
(Minimizes EM Interference of friendly forces)

Question 9

🔹What is Jamming?

Answer 9

The deliberate radiation, re-radiation, or reflection of EM energy for the purpose of preventing or reducing an enemy use of the EM spectrum, thus reducing or neutralizing the enemy’s combat capabilities.

Question 10

🔹Explain the format of a DTG?

Answer 10

19 2359ZAPR 12
- 2 digits representing the day of the month
- 4 digit military time code
- 1 letter representing time zone. (Usually GMT)
- 3 letter month code
- 2 digit year code
​remember acronym DTMY

Question 11

🔹What is the purpose of EKMS?

Answer 11

Electronic Key Management System governs the issuing, accounting, handling, disposing of COMSEC material.

Question 12

🔹Describe TEMPEST

Answer 12

What code name is given to the investigation, study, and control of compromising emanations from telecommunications.

Question 13

🔹ADNS

Answer 13

ADNS - Automated Digital Networking System

The primary function of the ADNS is to connect Navy shipboard networks to other ship and shore networks for transferring Internet Protocol (IP) data of various classification levels.