Common Core 106 C4I

Question 1

Prowords

Answer 1

For Brevity purposes

Pronounceable words or phrases that have been assigned meaning to expedite message handling on R/T circuits

Question 2

3 modes of communication

Answer 2

1) Arm and Hand Signals
2) Whistle Signals (attention to orders = 1 short blast, cease fire = 1 long blast, hostile aircraft/mechanized vehicle = 3 long blasts repeated several times)
3) Special Signals (3 equally spaced shots from a rifle, 3 bursts from an automatic small arm)

Question 3

Principles of Naval Intelligence

Answer 3

• Know the Adversary
• The Commander’s Needs are Paramount
• Ensure Unity of Intelligence Effort
• Plan for Combat
• Use an All-Source Approach

Question 4

Key Attributes of Naval Intelligence

Answer 4

• Timeliness
• Objectively
• Usability
• Availability
• Thoroughness
• Accuracy
• Relevance

Question 5

Intelligence Cycle

Answer 5

1) Planning and Direction
2) Collection
3) Processing
4) Production
5) Dissemination

Question 6

COMSEC

Answer 6

Communications Security

Navy’s system for providing proper safeguards on telecommunications via encryption

Question 7

CMS Custodian

Answer 7

Communications Security Material System Custodian
Responsible to the CO for:
-Managing the CMS account IAW CMS, COMSEC, and EKMS policies
-Advising the CO on matters concerning the physical security and handling of CMS publications and materials; to include the storage, accountability, and proper destruction of CMS material.

Question 8

TPI

Answer 8

Two Person Integrity

The constant presence of two authorized personnel when COMSEC is being handled

Question 9

Access

Answer 9

The ability and opportunity to obtain knowledge of classified information

Question 10

Classification

Answer 10

The determination that official information requires, in the interest of national security, a specific degree of protection

Question 11

Compromise

Answer 11

A security violation which has resulted in confirmed exposure of classified information to an uncleared person

Question 12

Need to Know

Answer 12

Determination made by an authorized handler of classified information that a prospective recipient requires access to specific information.

Question 13

Clearance

Answer 13

Formal determination that a person meets the personnel security standards and is thus eligible for access to classified information

• Confidential
• Secret
• Top Secret

Question 14

Minimize

Answer 14

Drastically reducing normal message/telephone traffic so that vital messages can be sent and received without delay

Question 15

EMCON

Answer 15

Emissions Control

Question 16

EEFI

Answer 16

Essential Elements of Friendly Information

Question 17

EEFI Codes

Answer 17

1) Position
2) Capabilities
3) Operations
4) Electronic Warfare
5) Personnel
6) COMSEC
7) Wrong Circuit

Question 18

Beadwindow

Answer 18

Real-time procedure used to alert circuit operator of a EEFI violation. “A, this is B, Beadwindow 01, over” , “B this is A, Roger, out”

Question 19

HF

Answer 19

High Frequency 
3 Mhz - 30 Mhz
point to point
ship to shore
ground to air
fleet broadcast

Question 20

VHF

Answer 20

Very High Frequency
30 Mhz - 300 Mhz
Line of Sight
Ideal for amphibious operations (beach landing from sea craft)

Question 21

UHF

Answer 21

Ultra High Frequency
300 Mhz - 3 Ghz
Line of Sight
Tactical voice transmissions (comms with aircraft)

Question 22

Weather affects on RF

Answer 22

• Rain/snow/fog/high humidity levels can ‘scatter’ a signal causing multiplex, or result in path loss.
• Ducting

Question 23

Terrain affects on RF

Answer 23

• Mountains/hills can obstruct Line of Sight

- Foliage can absorb RF

Question 24

Antenna affects on RF

Answer 24

• Antenna must be in sync with wave length
• Larger Antenna requires more power
• Larger antenna = larger RF lobes

Question 25

Power affects on RF

Answer 25

More power = more noise, but raises the noise floor

Question 26

Location of the radio affects on RF

Answer 26

• Line of Sight?
• In a canyon?
• In a cave/tunnel/parking garage?