ACP 121(H), COMM INST GENERAL CHAPTER 2

Question 1

The primary purpose of military communications and information systems (CIS) is to serve the what?

Answer 1

Military Commander

Question 2

During and after what radio became widespread, providing strategic and tactical worldwide
communications from ships, aircraft, headquarters and vehicles?

Answer 2

World War I

Question 3

What have gradually replaced HF strategic links as the primary means of communication by utilizing
both Ultra High Frequency (UHF) and Super High Frequency (SHF) line of sight links?

Answer 3

Satellites

Question 4

Military communications systems are divided into two general classes: What are they?

Answer 4

Tactical and Strategic

Question 5

What communication systems are usually self-contained within a command structure and are designed to
allow the commander to conduct his mission at the operational level, eg communications for control of a

weapons system, early warning systems, aircraft movement control or land component command nets?

Answer 5

Tactical

Question 6

What communications systems are generally more global in nature and are operated on either a common-
user or special purpose basis?

Answer 6

Strategic

Question 7

In modern communications terminology, what is generally associated with fixed CIS infrastructure,
which can be extended into the battlespace with high capacity bearers designed to interface with in-theatre systems?

Answer 7

Telecommunications

Question 8

Information concerning the security of communications is contained in what publication?

Answer 8

ACP 122

Question 9

What is the transmission and reception of messages using the International Morse Code?

Answer 9

Wireless Telegraphy

Question 10

What is the transmission of information, such as, pictures, maps, messages and other similar material?

Answer 10

Facsimile

Question 11

What means of visual communications is the transmission of information by light, which is outside of
the visible spectrum?

Answer 11

Infrared

Question 12

What means of visual communications involves the use of flares, rockets and smoke for prearranged
signals or for recognition purposes?

Answer 12

Pyrotechnics

Question 13

What means of visual communications involves the use of specially shaped and/or coloured cloth or
other material displayed in accordance with the pre-arranged code to convey messages?

Answer 13

Panels

Question 14

What is the method of forwarding messages by an established postal service when speed of delivery is
not an issue and security considerations allow?

Answer 14

Mail

Question 15

What method should always be used to deliver bulky material or any messages that could be delivered within the time required for encryption, transmission, decryption and delivery of a message?

Answer 15

Messenger or courier