ACP 125 (REV F) Communication Instructions Radiotelephone Procedures

Question 1

What in-enciphered communication medium is the least secure of all means of communications?

Answer 1

Radio

Question 2

What is the collective title for the measures taken to protect all aspects of communications in order to deny information and intelligence to an enemy?

Answer 2

Communications Security (COMSEC)

Question 3

What is the component of COMSEC which includes all measures designed to protect Allied radio transmissions from enemy interception, analysis and deception?

Answer 3

Transmission Security

Question 4

What is the act of searching for, listening to and recording radio communications and electronic transmissions for the purpose of obtaining information?

Answer 4

Interception

Question 5

What is the examination and interpretation of interception radio communications traffic and electronic transmissions for the purpose of obtaining intelligence?

Answer 5

Analysis

Question 6

What is the introduction of a false transmission into a communications system, by imitating an authentic transmission, with the intention to deceive or create confusion?

Answer 6

Deception

Question 7

What is the only conclusive defense against interception?

Answer 7

Radio silence

Question 8

Individual transmission should not exceed how many seconds and whenever possible, terminated with the proword OUT?

Answer 8

20

Question 9

Whether Allied or those of an adversary, what are the most sensitive information sent over radio and are an unrivalled source of intelligence?

Answer 9

Location

Question 10

What are designed to provide security protection for sensitive short-term tactical information where speed and simplicity of operation are the overriding considerations?

Answer 10

Low level codes

Question 11

What provides useful information for an enemy to use in a timely way (his response time can be expected to be as little as a few minutes) to our disadvantage?

Answer 11

Exploitable text

Question 12

In training, there is a need to differentiate between exercise play and events, which require action outside the context of the exercise; conventionally this is known as “real” activity. In order to highlight the differences between real and other messages, what proword is used?

Answer 12

NO PLAY

Question 13

What is a security aid designed to protect Allied communications against deception from fraudulent transmissions by in-authorized persons?

Answer 13

Authentications

Question 14

What is a single-word with a pre-arranged meaning, used to establish a condition, an alert, or to initiate the implementation of a plan or operation?

Answer 14

Codeword

Question 15

What is a unique, daily changing group of four random letters used to disguise a command, formation, unit or sun unit?

Answer 15

Address group

Question 16

What is a combination of letters and figures that identify a communication facility, an organization, or an individual on a radio net?

Answer 16

Callsign

Question 17

What is designed to provide the fastest and most accurate method of speech transmission?

Answer 17

Voice procedure

Question 18

What are used in place of whole sentences to keep voice transmissions as brief and clear as possible?

Answer 18

Prowords

Question 19

What is a list of numbers or letter, which equate to a standard predetermined vocabulary of words or phrases?

Answer 19

Brevity code